This document provides an agenda and summaries for the Fourth Annual Meeting and Academic Symposium of the Taiwan Skull Base Surgery Medical Society. The event was held on November 15, 1997 at Taipei Veterans General Hospital and included various presentations on skull base surgery topics. Presentations included "Modified Orbitozygomatic Craniotomy for Medial Wing Meningiomas", "Surgery for the Foramen Magnum Meningioma", and "Gamma Knife Surgery for the Treatment of Cavernous Sinus Hemangiomas and AV Fistulas Involving the Cavernous Sinus". The agenda also included member registration, opening remarks, academic lectures, lunch, elections for the board of directors, and a
Endoscopic Endonasal Transclival Approach to the Ventral BrainstemDr. Shahnawaz Alam
Endoscopic Endonasal Transclival Approach to the Ventral Brainstem: Anatomic Study of the Safe Entry Zones Combining Fiber Dissection Technique with 7 Tesla Magnetic Resonance Guided Neuronavigation
Intraoperative lacrimal intubation to prevent epiphora as aDr. SHEETAL KAPSE
1) The study assesses the effectiveness of intraoperative lacrimal intubation to prevent epiphora resulting from injury to the nasolacrimal system after fractures of the naso-orbitoethmoid complex.
2) 19 patients underwent open reduction and internal fixation for naso-orbitoethmoid fractures along with lacrimal intubation using silicone tubes, which were removed after 2-11 months.
3) The results showed that intraoperative lacrimal intubation successfully prevented permanent epiphora in all patients and offers greater benefits than omitting intubation.
This document discusses various surgical approaches to the craniovertebral junction (CVJ), including classic transoral microsurgery, endoscopic endonasal, transoral, and transcervical approaches. The transoral approach has traditionally been used but is limited by technical difficulties with visualization. Endoscopic techniques aim to overcome these issues and provide alternatives. Each approach has advantages and disadvantages regarding exposure, visualization, postoperative recovery, and types of pathologies that can be addressed. The nasopalatine line is discussed as an anatomical landmark to predict the extent of endonasal surgery.
Surgical disaster in temporomandibular joint: Case reportlpfeilsticker
This case report describes a surgical disaster that occurred during treatment of a young woman's congenital bilateral temporomandibular joint ankylosis. During surgery to remove the ankylosis and place prosthetic joints, the patient suffered iatrogenic injuries including facial nerve palsy, deafness on the right side, and a cerebrospinal fluid leak from trauma to the structures of the external, middle, and inner ear on the right side. Computed tomography scans showed extensive destruction of the lateral skull base region involving the middle and inner ear and middle fossa floor on the right side. The patient was left with permanent deafness on the right side, limited mouth opening, and right facial palsy.
Distraction osteogenesis was performed on 15 patients with retrognathia and obstructive sleep apnea secondary to temporomandibular joint ankylosis. This study evaluated the effects of mandibular advancement using distraction osteogenesis to increase the posterior airway space. Results found significant improvements in sleep apnea symptoms and polysomnography outcomes after distraction, including reduced apnea-hypopnea index and increased lowest blood oxygen saturation. The authors concluded that distraction osteogenesis is an effective treatment for obstructive sleep apnea in patients with severe acquired retrognathia.
Title: Otoplasty: New Modification of the Mustardé technique
Author: Mohamed A.S.M. El-Rouby, MD,
Assistant Professor of Plastic surgery, Ain Shams University, Cairo, Egypt.
Abstract
Background: one of the most established techniques for management of protruding ears is the Mustardé technique (1). Many modifications had been published for this technique; however, all these modifications started by retro-auricular incision. We modify the Mustardé technique using three retroauricular microincisions to correct several deformities of the auricular cartilage in protruding ears.
Patients and Methods: 46 patients (7unilateral, 39 bilateral) (85 ears) who were candidates for this technique, their age (25 ± 2.8 years), 38 males, 8 females. The operation time, steps, follow up sessions (2 weeks, 3, 6 and 18 months) data was recorded. Preoperative and postoperative (1,18 months) photos were compared and analyzed by custom made computer program the evaluated the results.
Results: 42 patients achieve a natural appearance. extrusion of threads occurred in 8 ears. Asymmetrical ears were noticed in 4 patients and recurrence in 11 patients. These patients were revised by Mustardé technique with retro-auricular incisions. None of the patients developed retro-auricular scars.
Conclusion: this versatile modification allows for better asthenic results of otoplasty and minimizes complications of skin incision unless cartilage and/or skin resection is needed.
This document discusses endoscopic skull base surgery and its advantages over traditional open skull surgery. It is presented by Dr. G. Sundhar Krishnan and Dr. P. Kanthamani of Krishna Eye and ENT Hospitals in Chennai. Endoscopic skull base surgery uses the nasal passages and other natural openings to access the skull base instead of external incisions or craniotomy. It provides better visualization with endoscopes and has benefits like smaller incisions, shorter hospital stays, lower morbidity rates, and better cosmetic outcomes for patients compared to traditional open skull base surgery. The document outlines the indications for endoscopic skull base surgery and provides examples of conditions it can treat as well as case studies with pre- and post
Validity of sentinel node biopsy in early oral and oropharyngeal carcinomaDibya Falgoon Sarkar
This study evaluated the validity of sentinel node biopsy in early oral and oropharyngeal carcinoma to determine if it can help avoid unnecessary elective neck dissections. The study found that sentinel node biopsy identified occult metastases in 12 of 36 patients (33.3%), suggesting that neck dissection may be overtreatment for many patients. Sentinel nodes correctly identified metastases in 14 of 15 cases. While the study was limited by its small size and retrospective design, the results suggest sentinel node biopsy could help reduce overtreatment through more precise staging of early-stage cancers. Larger prospective studies are still needed to establish sentinel node biopsy as a reliable alternative to elective neck dissection.
Endoscopic Endonasal Transclival Approach to the Ventral BrainstemDr. Shahnawaz Alam
Endoscopic Endonasal Transclival Approach to the Ventral Brainstem: Anatomic Study of the Safe Entry Zones Combining Fiber Dissection Technique with 7 Tesla Magnetic Resonance Guided Neuronavigation
Intraoperative lacrimal intubation to prevent epiphora as aDr. SHEETAL KAPSE
1) The study assesses the effectiveness of intraoperative lacrimal intubation to prevent epiphora resulting from injury to the nasolacrimal system after fractures of the naso-orbitoethmoid complex.
2) 19 patients underwent open reduction and internal fixation for naso-orbitoethmoid fractures along with lacrimal intubation using silicone tubes, which were removed after 2-11 months.
3) The results showed that intraoperative lacrimal intubation successfully prevented permanent epiphora in all patients and offers greater benefits than omitting intubation.
This document discusses various surgical approaches to the craniovertebral junction (CVJ), including classic transoral microsurgery, endoscopic endonasal, transoral, and transcervical approaches. The transoral approach has traditionally been used but is limited by technical difficulties with visualization. Endoscopic techniques aim to overcome these issues and provide alternatives. Each approach has advantages and disadvantages regarding exposure, visualization, postoperative recovery, and types of pathologies that can be addressed. The nasopalatine line is discussed as an anatomical landmark to predict the extent of endonasal surgery.
Surgical disaster in temporomandibular joint: Case reportlpfeilsticker
This case report describes a surgical disaster that occurred during treatment of a young woman's congenital bilateral temporomandibular joint ankylosis. During surgery to remove the ankylosis and place prosthetic joints, the patient suffered iatrogenic injuries including facial nerve palsy, deafness on the right side, and a cerebrospinal fluid leak from trauma to the structures of the external, middle, and inner ear on the right side. Computed tomography scans showed extensive destruction of the lateral skull base region involving the middle and inner ear and middle fossa floor on the right side. The patient was left with permanent deafness on the right side, limited mouth opening, and right facial palsy.
Distraction osteogenesis was performed on 15 patients with retrognathia and obstructive sleep apnea secondary to temporomandibular joint ankylosis. This study evaluated the effects of mandibular advancement using distraction osteogenesis to increase the posterior airway space. Results found significant improvements in sleep apnea symptoms and polysomnography outcomes after distraction, including reduced apnea-hypopnea index and increased lowest blood oxygen saturation. The authors concluded that distraction osteogenesis is an effective treatment for obstructive sleep apnea in patients with severe acquired retrognathia.
Title: Otoplasty: New Modification of the Mustardé technique
Author: Mohamed A.S.M. El-Rouby, MD,
Assistant Professor of Plastic surgery, Ain Shams University, Cairo, Egypt.
Abstract
Background: one of the most established techniques for management of protruding ears is the Mustardé technique (1). Many modifications had been published for this technique; however, all these modifications started by retro-auricular incision. We modify the Mustardé technique using three retroauricular microincisions to correct several deformities of the auricular cartilage in protruding ears.
Patients and Methods: 46 patients (7unilateral, 39 bilateral) (85 ears) who were candidates for this technique, their age (25 ± 2.8 years), 38 males, 8 females. The operation time, steps, follow up sessions (2 weeks, 3, 6 and 18 months) data was recorded. Preoperative and postoperative (1,18 months) photos were compared and analyzed by custom made computer program the evaluated the results.
Results: 42 patients achieve a natural appearance. extrusion of threads occurred in 8 ears. Asymmetrical ears were noticed in 4 patients and recurrence in 11 patients. These patients were revised by Mustardé technique with retro-auricular incisions. None of the patients developed retro-auricular scars.
Conclusion: this versatile modification allows for better asthenic results of otoplasty and minimizes complications of skin incision unless cartilage and/or skin resection is needed.
This document discusses endoscopic skull base surgery and its advantages over traditional open skull surgery. It is presented by Dr. G. Sundhar Krishnan and Dr. P. Kanthamani of Krishna Eye and ENT Hospitals in Chennai. Endoscopic skull base surgery uses the nasal passages and other natural openings to access the skull base instead of external incisions or craniotomy. It provides better visualization with endoscopes and has benefits like smaller incisions, shorter hospital stays, lower morbidity rates, and better cosmetic outcomes for patients compared to traditional open skull base surgery. The document outlines the indications for endoscopic skull base surgery and provides examples of conditions it can treat as well as case studies with pre- and post
Validity of sentinel node biopsy in early oral and oropharyngeal carcinomaDibya Falgoon Sarkar
This study evaluated the validity of sentinel node biopsy in early oral and oropharyngeal carcinoma to determine if it can help avoid unnecessary elective neck dissections. The study found that sentinel node biopsy identified occult metastases in 12 of 36 patients (33.3%), suggesting that neck dissection may be overtreatment for many patients. Sentinel nodes correctly identified metastases in 14 of 15 cases. While the study was limited by its small size and retrospective design, the results suggest sentinel node biopsy could help reduce overtreatment through more precise staging of early-stage cancers. Larger prospective studies are still needed to establish sentinel node biopsy as a reliable alternative to elective neck dissection.
A 19-year-old female presented with a right neck mass. Imaging and biopsy identified it as a schwannoma originating from the vagus nerve in the parapharyngeal space. Schwannomas are benign nerve sheath tumors that can arise from various cranial nerves in the neck. Preoperative imaging can help determine the nerve of origin using characteristics like the relationship of the carotid artery and internal jugular vein. Complete surgical excision while preserving the involved nerve is the treatment of choice to avoid neurological deficits. Postoperative hoarseness is a potential complication for vagus nerve schwannomas.
- The document discusses principles of limb salvage surgery for bone tumors. It covers staging of tumors, including radiological and surgical staging. Radiological modalities like CT, MRI, PET scans help determine tumor extent and metastases.
- Principles of biopsy and factors affecting success of limb salvage surgery are outlined. Surgical resection aims to remove the tumor with an adequate margin while reconstructing the limb functionally. Pre-operative staging and adjuvant therapy can aid resectability.
- The goal of limb salvage surgery is a painless, functional reconstructed limb while achieving oncologic control.
This document discusses the history and developments in neuroendoscopy. It describes how Walter Dandy is considered the father of neuroendoscopy for using an endoscope to inspect the ventricles in 1922. Significant technological developments include the invention of fiber optic cables in the 1960s and charge-coupled device cameras in 1969, which improved image quality for endoscopy. The document outlines the use of neuroendoscopy for diagnostic and therapeutic applications like biopsy of tumors and relief of hydrocephalus through third ventriculostomy.
The document discusses various techniques for limb salvage surgery following bone tumors. It describes the principles of limb salvage compared to amputation, including survival, recurrence, function, and complications. Various reconstruction options after tumor resection are summarized, including allografts, vascularized bone grafts, prosthetics, arthrodesis, rotationplasty, and total femur replacement. Specific case examples illustrate different reconstruction techniques for various tumor locations.
This document profiles Dr. Amish Sanghvi and his qualifications and expertise in spine surgery. It outlines his medical training and fellowships in spine surgery, minimally invasive spine surgery, and stem cell research. It also lists some of his achievements including national awards and publications. The document describes Dr. Sanghvi's areas of expertise, which include various spine surgeries and conditions. It provides examples of some of his patients' cases and outcomes.
Minimally invasive spine surgeries (MISS) since its inception around 15 years ago has undergone rigorous changes with ever evolving technologies. Minimally invasive spine surgeries with “percutaneous” and “tubular” approaches is based on novel concept of minimizing collateral soft tissue damage, while achieving surgical goal in various spinal pathologies. MISS has been applied to simple spinal procedures of discectomy, decompression and fusion to even complex surgeries like deformity correction. MISS vis a vis “conventional open techniques” has benefits in terms of postoperative pain, concurrent tissue damage, disruption of spinal stabilizing structures, estimated blood loss, need of blood transfusion, length of hospital stay, surgical site infections, time to ambulation and functional recovery.
Pain from acute vertebral fracture appears to be due in part to instability (non-union or slow union at the fracture site), while more than 1/3 of patients become chronically painful.
Traditional treatment for patients with painful VCFs includes bed rest, narcotic analgesics and bracing, resulting in increased pain because of acceleration bone loss and muscle weakness.
This document discusses the use of surgical navigation in craniomaxillofacial surgery and classifies different indications for its use. It analyzes cases where surgical navigation was used or considered at a clinic from 2003-2009. Four typical clinical situations are presented: 1) difficult secondary reconstruction of a zygomatic bone fracture where navigation provided high accuracy, 2) acute orbital floor fractures where navigation aided in identifying bony edges, 3) removal of lingual displaced root fragments where navigation helped locate structures near bony areas, and 4) bilateral midface fractures where navigation was not deemed necessary. The document concludes by classifying indications for surgical navigation as Class I (clear), Class II (limited), or Class III (no indication).
Intraoperative Ultrasound and MRI Scan in Glioma surgerySandeep Mishra
1. Intraoperative imaging such as intraoperative ultrasound (IOUS), intraoperative magnetic resonance imaging (IOMRI), and intraoperative computed tomography (IOCT) can help achieve maximal safe resection of brain tumors by identifying residual tumor for further resection.
2. Studies have shown IOUS and IOMRI are the most advantageous intraoperative imaging modalities and can improve extent of resection, particularly for non-enhancing gliomas. IOMRI has been shown to increase gross total resection rates compared to conventional surgery alone.
3. The extent of resection is a strong prognostic factor for survival, with increasing resection associated with improved progression-free and overall survival, especially for high grade gliomas. Intraoperative imaging allows for identification and resection
Closure of Myelomeningocele Defect Using a Keystone Design Perforator Island ...CrimsonPublishersTNN
Introduction: Early surgical repair of myelomeningocele (MMC) is recommended to reduce infection rates, but severe and large defects can
preclude primary closure. Many techniques of repair have been proposed to treat large defects and we report two cases of patients who underwent
keystone design perforator island flap (KDPIF) for closure MMC.
Methods: Retrospective analysis of two patients who underwent KDPIF for MMC repair at birth was performed. Skin and neural tube defects were
large and precluded primary closure. Surgical repair of MMC consisted of reconstruction of neural placode with dissection of meningeal sac without
neural damage. The opposing sliding flaps were prepared, based on randomly located vascular perforator. Skin incisions were made on the outline
of the flap and continued through the subcutaneous tissues down to lumbar fascia and muscles. Closure was performed in layers and then the V-Y
advancement of each end of the flap in the longitudinal axis is completed. Wound healing was satisfactory and no complications were noted.
Conclusion: Early surgical repair of the defect is recommended and the neurosurgeon who deal with pediatric neurosurgery must be prepared to
treat large and complex spina bifida defects. We have effectively demonstrated the use of KDPIF closure as an alternative for more complex MMC cases.
The NEAR Project: Neuroendoscopy towards Augmented Realitymatteo ciucci
1. The document discusses a project called NEAR (Neuroendoscopy towards Augmented Reality) which aims to develop augmented reality navigation software to assist with endoscopic third ventriculostomy (ETV) surgery.
2. ETV is a type of neuroendoscopy surgery performed in the brain to create an opening in the floor of the third ventricle. The AR software would help the surgeon locate the third ventricle and target point for the opening.
3. The NEAR project uses optical tracking of endoscopes and tools along with triangulation algorithms to determine positions and overlay guidance information for the surgeon during ETV procedures.
This document provides an overview of cerebellopontine angle tumors. It begins with an introduction and outlines the types, etiology, clinical features, diagnosis, and management of cerebellopontine angle tumors. The most common type is vestibular schwannoma, which accounts for 80-85% of cases. Management options include conservative monitoring, surgery via the translabyrinthine, middle fossa, or retrosigmoid approaches, and radiotherapy using stereotactic radiosurgery. The goals of management are complete tumor removal while preserving cranial nerve function.
This document describes a study evaluating the efficacy of using a dynamic hip screw (DHS) drill under image intensifier guidance to ablate osteoid osteoma of the lower extremities in children and adolescents. Eighteen patients between ages 4-16 were treated with this minimally invasive technique, with 16 achieving initial success from one drilling. Complications included one tibial fracture and two skin abrasions. At follow-up, all patients were classified as having a good clinical response. The combination of intraoperative localization using image intensifier guidance and ablation with a DHS drill provided an efficient, safe, and curative procedure with minimal bone loss for treating osteoid osteoma.
Genioglossus muscle advancement and simultaneous sliding genioplasty in the m...Dibya Falgoon Sarkar
This study describes a technique that combines genioglossus muscle advancement and sliding genioplasty to treat obstructive sleep apnea. The technique was performed on 14 patients with OSA and retrognathia. It resulted in advancement of the genioglossus muscle to help keep the airway open during sleep. Only 3 patients underwent follow-up sleep studies, which showed improvement in 2 patients. While this technique provides both functional and aesthetic benefits, larger studies are still needed to fully evaluate its effectiveness in treating OSA.
This document reports on three cases of pseudarthrosis (nonunion) of rib fractures that were treated with open reduction and internal fixation using locking compression plates.
In the first case, a 56-year-old man presented with persistent pain 8 months after rib fractures. Imaging showed a pseudarthrosis of the ninth rib. Osteosynthesis with a locking compression plate resulted in pain relief.
The second case involved a 44-year-old man with pseudarthroses of multiple ribs treated with plates on three ribs, resulting in pain relief.
The third case was a 42-year-old man with three rib pseudarthroses treated with plates, who had partial pain relief and later hardware removal
This document discusses kyphoplasty for treating acute osteoporotic vertebral compression fractures. It begins by thanking various professors and outlines the purpose of studying kyphoplasty's role in managing such fractures by analyzing clinical and radiographic outcomes to evaluate its efficacy and safety. Vertebral compression fractures are a common osteoporosis complication and can cause spinal deformities, pain, disability and reduced function. Kyphoplasty is a minimally invasive procedure that can restore height and provide immediate pain relief with fewer complications than vertebroplasty. The document discusses patient selection criteria, technique, potential complications, and outcomes of kyphoplasty for treating osteoporotic vertebral compression fractures.
This document provides an overview of balloon kyphoplasty as an orthopaedic treatment for vertebral compression fractures. It describes how balloon kyphoplasty can stabilize fractures and correct spinal deformity by using an inflatable balloon to restore height to a fractured vertebra before injecting bone cement. Clinical studies discussed show that balloon kyphoplasty provides significant pain reduction, mobility improvements, and a low complication rate compared to alternative treatments like vertebroplasty.
Facial and Hearing Preservation in Acoustic Neuroma SurgeryDr Fakir Mohan Sahu
Vestibular Schwannoma Most common CPA (Cerebellopontine angle) tumor changed from prolongation of life to nerve preservation explained in brief with all pre- operative work up.
More harm than benefit of perioperative dexamethasone on recovery following ...Dibya Falgoon Sarkar
1. A prospective double-blind randomized trial found that perioperative dexamethasone provided minor pain relief but significantly increased insulin requirements and risk of infections in patients undergoing reconstructive head and neck cancer surgery.
2. Dexamethasone did not accelerate recovery or shorten hospital stay and its use in head and neck cancer reconstruction provided no clear clinical benefits while increasing complications.
3. A randomized controlled trial of corticosteroids after transoral robotic surgery found extended perioperative dexamethasone was safe and may allow for earlier improvement in diet consistency and decreased hospital stay, though it minimally affected postoperative pain.
This document discusses surgical procedures for osteonecrosis of the femoral head, including both joint preserving and replacing options. Key joint preserving procedures described are core decompression, various bone grafting techniques using vascularized and nonvascularized grafts, and proximal femoral osteotomies. Total hip arthroplasty and hip resurfacing are mentioned as joint replacing options.
Universidad nacional de chimborazo tópicosDany Barraquil
El documento describe el funcionamiento y características de los microprocesadores. Explica que los microprocesadores actuales operan a frecuencias de GHz o MHz, midiendo su velocidad en ciclos por segundo. También detalla que los microprocesadores tienen puertos de entrada y salida integrados y que el chipset está compuesto de puentes norte y sur para manejar el procesador, RAM y periféricos.
Change Lessons Learned - Implementing a Kanban System for Enterprise AgilityShoaib Shaukat
This document describes the implementation of a Kanban system at a large energy company to achieve enterprise agility. It discusses how the company lacked process transparency, had a waterfall development approach, and IT was seen as unresponsive by the business. Kanban practices like visualization, limiting work-in-progress, and collaborative improvement were used. This reduced the backlog from 800 to 350 items within 4 months while new requests remained the same, improving productivity. The key lessons learned were to take an incremental approach to change, focus on shifting mindsets, and collaborate at all levels to sustain transformations.
A 19-year-old female presented with a right neck mass. Imaging and biopsy identified it as a schwannoma originating from the vagus nerve in the parapharyngeal space. Schwannomas are benign nerve sheath tumors that can arise from various cranial nerves in the neck. Preoperative imaging can help determine the nerve of origin using characteristics like the relationship of the carotid artery and internal jugular vein. Complete surgical excision while preserving the involved nerve is the treatment of choice to avoid neurological deficits. Postoperative hoarseness is a potential complication for vagus nerve schwannomas.
- The document discusses principles of limb salvage surgery for bone tumors. It covers staging of tumors, including radiological and surgical staging. Radiological modalities like CT, MRI, PET scans help determine tumor extent and metastases.
- Principles of biopsy and factors affecting success of limb salvage surgery are outlined. Surgical resection aims to remove the tumor with an adequate margin while reconstructing the limb functionally. Pre-operative staging and adjuvant therapy can aid resectability.
- The goal of limb salvage surgery is a painless, functional reconstructed limb while achieving oncologic control.
This document discusses the history and developments in neuroendoscopy. It describes how Walter Dandy is considered the father of neuroendoscopy for using an endoscope to inspect the ventricles in 1922. Significant technological developments include the invention of fiber optic cables in the 1960s and charge-coupled device cameras in 1969, which improved image quality for endoscopy. The document outlines the use of neuroendoscopy for diagnostic and therapeutic applications like biopsy of tumors and relief of hydrocephalus through third ventriculostomy.
The document discusses various techniques for limb salvage surgery following bone tumors. It describes the principles of limb salvage compared to amputation, including survival, recurrence, function, and complications. Various reconstruction options after tumor resection are summarized, including allografts, vascularized bone grafts, prosthetics, arthrodesis, rotationplasty, and total femur replacement. Specific case examples illustrate different reconstruction techniques for various tumor locations.
This document profiles Dr. Amish Sanghvi and his qualifications and expertise in spine surgery. It outlines his medical training and fellowships in spine surgery, minimally invasive spine surgery, and stem cell research. It also lists some of his achievements including national awards and publications. The document describes Dr. Sanghvi's areas of expertise, which include various spine surgeries and conditions. It provides examples of some of his patients' cases and outcomes.
Minimally invasive spine surgeries (MISS) since its inception around 15 years ago has undergone rigorous changes with ever evolving technologies. Minimally invasive spine surgeries with “percutaneous” and “tubular” approaches is based on novel concept of minimizing collateral soft tissue damage, while achieving surgical goal in various spinal pathologies. MISS has been applied to simple spinal procedures of discectomy, decompression and fusion to even complex surgeries like deformity correction. MISS vis a vis “conventional open techniques” has benefits in terms of postoperative pain, concurrent tissue damage, disruption of spinal stabilizing structures, estimated blood loss, need of blood transfusion, length of hospital stay, surgical site infections, time to ambulation and functional recovery.
Pain from acute vertebral fracture appears to be due in part to instability (non-union or slow union at the fracture site), while more than 1/3 of patients become chronically painful.
Traditional treatment for patients with painful VCFs includes bed rest, narcotic analgesics and bracing, resulting in increased pain because of acceleration bone loss and muscle weakness.
This document discusses the use of surgical navigation in craniomaxillofacial surgery and classifies different indications for its use. It analyzes cases where surgical navigation was used or considered at a clinic from 2003-2009. Four typical clinical situations are presented: 1) difficult secondary reconstruction of a zygomatic bone fracture where navigation provided high accuracy, 2) acute orbital floor fractures where navigation aided in identifying bony edges, 3) removal of lingual displaced root fragments where navigation helped locate structures near bony areas, and 4) bilateral midface fractures where navigation was not deemed necessary. The document concludes by classifying indications for surgical navigation as Class I (clear), Class II (limited), or Class III (no indication).
Intraoperative Ultrasound and MRI Scan in Glioma surgerySandeep Mishra
1. Intraoperative imaging such as intraoperative ultrasound (IOUS), intraoperative magnetic resonance imaging (IOMRI), and intraoperative computed tomography (IOCT) can help achieve maximal safe resection of brain tumors by identifying residual tumor for further resection.
2. Studies have shown IOUS and IOMRI are the most advantageous intraoperative imaging modalities and can improve extent of resection, particularly for non-enhancing gliomas. IOMRI has been shown to increase gross total resection rates compared to conventional surgery alone.
3. The extent of resection is a strong prognostic factor for survival, with increasing resection associated with improved progression-free and overall survival, especially for high grade gliomas. Intraoperative imaging allows for identification and resection
Closure of Myelomeningocele Defect Using a Keystone Design Perforator Island ...CrimsonPublishersTNN
Introduction: Early surgical repair of myelomeningocele (MMC) is recommended to reduce infection rates, but severe and large defects can
preclude primary closure. Many techniques of repair have been proposed to treat large defects and we report two cases of patients who underwent
keystone design perforator island flap (KDPIF) for closure MMC.
Methods: Retrospective analysis of two patients who underwent KDPIF for MMC repair at birth was performed. Skin and neural tube defects were
large and precluded primary closure. Surgical repair of MMC consisted of reconstruction of neural placode with dissection of meningeal sac without
neural damage. The opposing sliding flaps were prepared, based on randomly located vascular perforator. Skin incisions were made on the outline
of the flap and continued through the subcutaneous tissues down to lumbar fascia and muscles. Closure was performed in layers and then the V-Y
advancement of each end of the flap in the longitudinal axis is completed. Wound healing was satisfactory and no complications were noted.
Conclusion: Early surgical repair of the defect is recommended and the neurosurgeon who deal with pediatric neurosurgery must be prepared to
treat large and complex spina bifida defects. We have effectively demonstrated the use of KDPIF closure as an alternative for more complex MMC cases.
The NEAR Project: Neuroendoscopy towards Augmented Realitymatteo ciucci
1. The document discusses a project called NEAR (Neuroendoscopy towards Augmented Reality) which aims to develop augmented reality navigation software to assist with endoscopic third ventriculostomy (ETV) surgery.
2. ETV is a type of neuroendoscopy surgery performed in the brain to create an opening in the floor of the third ventricle. The AR software would help the surgeon locate the third ventricle and target point for the opening.
3. The NEAR project uses optical tracking of endoscopes and tools along with triangulation algorithms to determine positions and overlay guidance information for the surgeon during ETV procedures.
This document provides an overview of cerebellopontine angle tumors. It begins with an introduction and outlines the types, etiology, clinical features, diagnosis, and management of cerebellopontine angle tumors. The most common type is vestibular schwannoma, which accounts for 80-85% of cases. Management options include conservative monitoring, surgery via the translabyrinthine, middle fossa, or retrosigmoid approaches, and radiotherapy using stereotactic radiosurgery. The goals of management are complete tumor removal while preserving cranial nerve function.
This document describes a study evaluating the efficacy of using a dynamic hip screw (DHS) drill under image intensifier guidance to ablate osteoid osteoma of the lower extremities in children and adolescents. Eighteen patients between ages 4-16 were treated with this minimally invasive technique, with 16 achieving initial success from one drilling. Complications included one tibial fracture and two skin abrasions. At follow-up, all patients were classified as having a good clinical response. The combination of intraoperative localization using image intensifier guidance and ablation with a DHS drill provided an efficient, safe, and curative procedure with minimal bone loss for treating osteoid osteoma.
Genioglossus muscle advancement and simultaneous sliding genioplasty in the m...Dibya Falgoon Sarkar
This study describes a technique that combines genioglossus muscle advancement and sliding genioplasty to treat obstructive sleep apnea. The technique was performed on 14 patients with OSA and retrognathia. It resulted in advancement of the genioglossus muscle to help keep the airway open during sleep. Only 3 patients underwent follow-up sleep studies, which showed improvement in 2 patients. While this technique provides both functional and aesthetic benefits, larger studies are still needed to fully evaluate its effectiveness in treating OSA.
This document reports on three cases of pseudarthrosis (nonunion) of rib fractures that were treated with open reduction and internal fixation using locking compression plates.
In the first case, a 56-year-old man presented with persistent pain 8 months after rib fractures. Imaging showed a pseudarthrosis of the ninth rib. Osteosynthesis with a locking compression plate resulted in pain relief.
The second case involved a 44-year-old man with pseudarthroses of multiple ribs treated with plates on three ribs, resulting in pain relief.
The third case was a 42-year-old man with three rib pseudarthroses treated with plates, who had partial pain relief and later hardware removal
This document discusses kyphoplasty for treating acute osteoporotic vertebral compression fractures. It begins by thanking various professors and outlines the purpose of studying kyphoplasty's role in managing such fractures by analyzing clinical and radiographic outcomes to evaluate its efficacy and safety. Vertebral compression fractures are a common osteoporosis complication and can cause spinal deformities, pain, disability and reduced function. Kyphoplasty is a minimally invasive procedure that can restore height and provide immediate pain relief with fewer complications than vertebroplasty. The document discusses patient selection criteria, technique, potential complications, and outcomes of kyphoplasty for treating osteoporotic vertebral compression fractures.
This document provides an overview of balloon kyphoplasty as an orthopaedic treatment for vertebral compression fractures. It describes how balloon kyphoplasty can stabilize fractures and correct spinal deformity by using an inflatable balloon to restore height to a fractured vertebra before injecting bone cement. Clinical studies discussed show that balloon kyphoplasty provides significant pain reduction, mobility improvements, and a low complication rate compared to alternative treatments like vertebroplasty.
Facial and Hearing Preservation in Acoustic Neuroma SurgeryDr Fakir Mohan Sahu
Vestibular Schwannoma Most common CPA (Cerebellopontine angle) tumor changed from prolongation of life to nerve preservation explained in brief with all pre- operative work up.
More harm than benefit of perioperative dexamethasone on recovery following ...Dibya Falgoon Sarkar
1. A prospective double-blind randomized trial found that perioperative dexamethasone provided minor pain relief but significantly increased insulin requirements and risk of infections in patients undergoing reconstructive head and neck cancer surgery.
2. Dexamethasone did not accelerate recovery or shorten hospital stay and its use in head and neck cancer reconstruction provided no clear clinical benefits while increasing complications.
3. A randomized controlled trial of corticosteroids after transoral robotic surgery found extended perioperative dexamethasone was safe and may allow for earlier improvement in diet consistency and decreased hospital stay, though it minimally affected postoperative pain.
This document discusses surgical procedures for osteonecrosis of the femoral head, including both joint preserving and replacing options. Key joint preserving procedures described are core decompression, various bone grafting techniques using vascularized and nonvascularized grafts, and proximal femoral osteotomies. Total hip arthroplasty and hip resurfacing are mentioned as joint replacing options.
Universidad nacional de chimborazo tópicosDany Barraquil
El documento describe el funcionamiento y características de los microprocesadores. Explica que los microprocesadores actuales operan a frecuencias de GHz o MHz, midiendo su velocidad en ciclos por segundo. También detalla que los microprocesadores tienen puertos de entrada y salida integrados y que el chipset está compuesto de puentes norte y sur para manejar el procesador, RAM y periféricos.
Change Lessons Learned - Implementing a Kanban System for Enterprise AgilityShoaib Shaukat
This document describes the implementation of a Kanban system at a large energy company to achieve enterprise agility. It discusses how the company lacked process transparency, had a waterfall development approach, and IT was seen as unresponsive by the business. Kanban practices like visualization, limiting work-in-progress, and collaborative improvement were used. This reduced the backlog from 800 to 350 items within 4 months while new requests remained the same, improving productivity. The key lessons learned were to take an incremental approach to change, focus on shifting mindsets, and collaborate at all levels to sustain transformations.
The document provides a summary of photos and captions from a website covering the Egyptian revolution in English. It showed beautiful and moving photos of the events in chronological order with captions explaining the date and context. The comments especially praised a photo of protesters praying and noted Egyptian soldiers were also praying on tanks. Foreign comments on the site were supportive of the Egyptian people and remarked on how the world's view of Egyptians changed 180 degrees.
Este documento presenta 26 recetas que incluyen vegetales crujientes como complemento. La mayoría de las recetas usan bases crujientes de tomate o tiras crujientes de pimiento como acompañamiento, pero también incluyen cortes crujientes de cebolla en ensaladas, guisos y carnes. El documento proporciona ideas para sorprender y enriquecer diferentes platos con la textura y sabor de los vegetales crujientes.
O documento discute estratégias de marketing em mecanismos de busca na internet, incluindo otimização para mecanismos de busca (SEO) e publicidade em mecanismos de busca (SEA). Ele explica como os sites buscam ser encontrados online através de mecanismos de busca, com foco no Google, e discute as vantagens do SEO e SEA.
This document outlines the creation of an epistemic game for teaching microbiology. The game aims to develop competency in microbiology, cell biology and genetics by having students adopt the roles of professionals investigating possible microbial outbreak scenarios. An epistemic frame and augmented reality are used to blend virtual and real world environments. Students learn steps for accurate diagnosis and the epidemiological aspects of clinical microbiology. Evaluation found increased retention, exposure to real life situations, and a significant difference in comprehension compared to conventional teaching. Student feedback noted the game made them think more broadly and synthesize information like professionals.
China represents a significant opportunity for life sciences companies due to its large population, growing economy, and healthcare reforms. While China has historically focused on imitation, it is now pushing innovation through increased R&D investment and talent recruitment. Opportunities exist in pharmaceuticals, biotechnology, medical devices, and services, though China also faces challenges like a healthcare skills shortage and high treatment costs. Several Scottish companies have already established operations in China across these sectors.
Grafico diario del dax perfomance index para el 10 10-2012Experiencia Trading
Este documento presenta un análisis técnico del índice DAX alemán del 10 de octubre de 2012. Proporciona niveles de soporte y resistencia clave basados en medias móviles simples de 1, 2, 5, 13, 34, 89, 233 y 610 períodos. Predice posibles movimientos del índice dependiendo de si mantiene o pierde ciertos niveles clave, como 6.500, 7.100 y 7.500. Explica que el análisis técnico intenta predecir el futuro comportamiento del merc
This document discusses changing consumer tastes and habits related to morning coffee routines. It explores how consumers are increasingly demanding more specialized and authentic coffee options at home and in cafes. This has led to growth in the premium coffee capsule and single-origin coffee markets. Meanwhile, cafe chains are adapting by offering more variety and new coffee drinks to attract consumers. The coffee market continues to evolve as tastes become more refined.
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive functioning. Exercise causes chemical changes in the brain that may help protect against developing mental illness and improve symptoms for those who already have a condition.
Basketnet.gr: Online Media Kit
Μέσα από τις σελίδες του portal για τους φίλους του μπάσκετ (basketnet.gr), οι φίλαθλοι μπορούν να αναζητήσουν ολοκληρωμένη και έγκυρη πληροφόρηση, από μια μεγάλη ομάδα έγκριτων δημοσιογράφων του χώρου, για τις θεματικές ενότητες όλων των Ελληνικών πρωταθλημάτων, της Euroleague, του Eurocup, του NBA, του NCAA κ.λ.π., αλλά και για τα παρασκήνια του αθλήματος.
Este documento presenta el caso de un paciente de 60 años que fue diagnosticado con varios tipos de pólipos intestinales tras presentar síntomas de anemia y hemorragia digestiva. Se realizaron gastroscopia y colonoscopia que identificaron pólipos adenomatosos y no adenomatosos de diferentes tamaños y características. El análisis patológico reveló desde pólipos hiperplásicos hasta una neoplasia intramucosa en el colon. El resumen concluye destacando la importancia de diferenciar entre los tipos de
Este documento introduce las redes sociales y explica por qué son importantes para las empresas. Ofrecen credibilidad, interacción con clientes, creación de marca e imagen, atención al cliente, y colaboración. Define conceptos como identidad digital, reputación digital, estrategia, y cómo medir el éxito. Finalmente, resume varias redes sociales populares como Facebook, Twitter, LinkedIn, YouTube y sus usos para empresas.
The document discusses weight loss and provides tips. It notes that there are no magic bullets for weight loss and losing weight takes time and effort. Some key tips mentioned include setting realistic goals, making healthy lifestyle changes instead of drastic measures, listening to your body, and taking action to work towards your goals gently over time.
The document provides a summary of the key findings from an online advertising report in Romania for the 4th quarter of 2010. The three most popular ad formats used were 728 x 90, 300 x 250, and 160 x 600, though they did not have the highest click-through rates. The format with the highest CTR was the intrusive 500x600 banner. Ad sizes with the most average impressions were 620 x 200, 120 x 600, and 980 x 100. The report analyzed popular formats, effectiveness metrics, and advertising activity by sector.
The document discusses Usain Bolt running 100m in 9.58 seconds and asks what is happening with his respiration. It then asks if anything is different from last week and why. The document introduces the anaerobic system and its role in energy production compared to the aerobic system. It outlines understanding levels from knowing the anaerobic system and its components (C grade), to understanding how it differs from aerobic during energy production (B grade), to being able to see links and differences between the two respiratory systems (A* grade).
This document discusses olfactory groove meningiomas. It describes their location in the anterior cranial fossa near the olfactory nerves. It outlines their typical presentation with long-standing headaches and anosmia. Imaging shows well-defined enhancing masses. Preoperative embolization is described as a safe option to reduce blood loss during surgery. Complete resection is the goal but recurrence can occur due to direct invasion or incomplete resection. Complications include CSF leakage, vascular injury, and seizures.
This document presents a case of a 21-year-old female who presented with right nasal obstruction and discharge for two years. Imaging showed total opacification of the right sphenoid sinus and a polypoidal mass in the right nasal cavity. The patient underwent endoscopic sinus surgery where the mass was excised. Histopathology revealed secretory carcinoma (SC), previously known as mammary analogue secretory carcinoma (MASC). The patient had a second surgery for clear margins and is currently in remission with regular follow ups. The document then discusses SC/MASC as a rare salivary gland carcinoma that can rarely affect the sinonasal tract, and outlines its clinical features, diagnosis, treatment and prognosis.
This document discusses the management of cerebellopontine angle tumors. It covers the history of CP angle tumor surgery, current management options, indications for CSF diversion and conservative management, surgical approaches including translabrynthine and middle fossa, complications, and the role of radiosurgery. Key points include that the goal of modern surgery is to preserve cranial nerve function while completely removing tumors, indications for pre- versus post-operative CSF diversion, and the reduction of radiosurgery doses over time to decrease side effects.
Study of current pattern of Cervical Spondylotic Myelopathy and to evaluate t...iosrjce
IOSR Journal of Dental and Medical Sciences is one of the speciality Journal in Dental Science and Medical Science published by International Organization of Scientific Research (IOSR). The Journal publishes papers of the highest scientific merit and widest possible scope work in all areas related to medical and dental science. The Journal welcome review articles, leading medical and clinical research articles, technical notes, case reports and others.
Endoscopic transcanal stapedotomy was performed on 52 patients with otosclerosis at a tertiary hospital in Eastern India. The mean preoperative air-bone gap was 34.84 dB, which improved significantly to a mean of 9.81 dB postoperatively. The endoscope provided excellent visualization of the middle ear anatomy without needing to remove bone or touch sensitive structures. There were no reported complications. The study concluded that endoscopic stapedotomy is a safe procedure that allows for good visualization and outcomes comparable to microscopic stapedotomy.
Anatomic variations in Maxillary Sinus detected by CBCTDara Ghaznavi
The document discusses various anatomical variations of the maxillary sinus that can be detected using CBCT imaging, including hypoplasia, septa, pneumatization, and variations in arterial locations. It summarizes a study that used CBCT to evaluate 198 scans from Iranian patients, finding a high prevalence of septa (over 50% of sinuses) and identifying locations of the posterior superior alveolar artery in most sinuses. The discussion emphasizes how recognizing these variations is important for surgical planning, as variations can increase surgical risks and affect procedures like sinus lifts or extractions. CBCT is considered useful for pre-operative evaluation to identify variations and adjust treatment plans accordingly.
This document discusses osteomas, which are benign bone tumors that commonly arise in the skull. It provides details on the typical presentation, locations, demographic factors, investigations and surgical approaches for osteomas. It then presents a case of a 10-year-old girl who presented with slow-growing swellings in her right eyebrow and hairline that were found to be osteomas on CT scan. She underwent a bicoronal surgical approach to completely excise the osteomas due to their size and location, with an excellent postoperative outcome and no recurrence.
Porocarcinoma of the nose- reconstructed with seagull flap
Authors:Balasubramaniam, Ramanandham, Pradeep, Sivakumar, Kalpa Pandya
Int J Biol Med Res. 2024; 15(1): 7760-7763
https://www.biomedscidirect.com/2847/porocarcinoma-of-the-nose-reconstructed-with-seagull-flap
Abstract: Of all the cutaneous tumours, the reported incidence of porocarcinoma is as low as 0.005-0.01%. Very few cases of porocarcinoma of the nose have been described in English literature. Median forehead flap, also known as seagull flap is an excellent reconstruction modality for the nasal defect. We describe here an interesting case of porocarcinoma of the dorsum of the nose which was reconstructed in the first stage using a seagull flap providing the patient with a pleasing nasal profile.
Porocarcinoma of the nose- reconstructed with seagull flap
Authors:Balasubramaniam, Ramanandham, Pradeep, Sivakumar, Kalpa Pandya
Int J Biol Med Res. 2024; 15(1): 7760-7763
https://www.biomedscidirect.com/2847/porocarcinoma-of-the-nose-reconstructed-with-seagull-flap
Esthesioneuroblastoma (ENB) is a rare malignant tumor that arises from the olfactory epithelium in the nasal cavity. Imaging such as CT and MRI are used to determine the extent of the tumor. Histopathological examination shows small round blue cells forming rosettes. Treatment involves surgery such as craniofacial resection along with radiation therapy. For advanced disease, chemotherapy may be given as part of multimodality treatment. With aggressive treatment, 5-year survival rates for ENB exceed 60%.
Right Sided Optic Meningioma in a Young Girl _Crimson PublishersCrimsonpublishersMSOR
ONSMs are rare tumors of anterior visual pathway [1]. ONSMs arise from meningoepithelial cap cells of the arachnoids villi and can develop at any location along the entire course of the optic nerve sheath [2,3]. We received a case of right sided optic tumor completely involving the eyeball requiring exentration surgery and were sent to our department for analysis. On cut opening a firm whicte tumor surface was seen and on microscopy a diagnosis og meningothelial meningioma was made. The diagnosis was confirmed by EMA positivity.
This document summarizes a study examining the use of optical coherence tomography angiography (OCTA) to detect early glaucoma. The study found that OCTA can reliably distinguish between healthy eyes and those with early glaucoma. Specifically, it observed greater changes in perifoveal macular thickness compared to peripapillary retinal nerve fiber layer thickness for detecting early glaucoma. Perifoveal inner macular thickness showed significant differences between early glaucoma patients and healthy controls as well as glaucoma suspects. This indicates perifoveal macular thickness may be a more informative marker than RNFL thickness for identifying early glaucoma using OCTA.
This study retrospectively reviewed 61 patients who underwent reconstruction of oral cavity or oropharyngeal defects with a platysma myocutaneous flap (MPF) following surgery for squamous cell carcinoma. The study describes the surgical technique for harvesting the MPF based on branches of the facial artery rather than the submental artery. Tumors involved the oral cavity in 95.1% of cases. Success rate for the MPF was 93.4% with 4 patients experiencing partial skin paddle necrosis. Local recurrence occurred in 21.3% of patients. The study concludes that the MPF can be a suitable option for reconstruction of small to medium head and neck defects in selected cases as it provides good vascularization while achieving oncolog
This document summarizes experiments on avascular necrosis of the femoral head. It discusses diagnostic experiments including MRI diagnosis and isotope scanning. It also discusses non-surgical interventions such as restricted weight bearing, pharmacological agents, hyperoxygenation, bisphosphonates, and core decompression with adjunct therapies. Surgical interventions discussed include core decompression, core decompression with bone morphogenetic protein and autologous bone marrow, and total hip replacement for advanced cases.
This document summarizes a study that evaluated the efficacy of ultrasonography and computed tomography in diagnosing palpable neck masses. 40 patients with neck masses were examined clinically and underwent ultrasound and CT scans. The results found that ultrasound was useful for characterizing masses as solid or cystic and identifying features like margins, calcifications and necrosis. CT provided additional information on tissue attenuation, extent of lesions, and involvement of surrounding structures or distant spread. The study concluded that ultrasound combined with CT provides valuable information to accurately diagnose neck masses and guide their management.
Singers in India
- Endoscopic sinus surgery aims to restore sinus function by reestablishing ventilation and mucociliary clearance which is necessary to maintain patency of the ostiomeatal complex.
- It involves removing bony septations and thoroughly ethmoidectomizing while preserving the mucosal lining of the skull base, lamina papyracea, and sinus cavities to avoid postoperative scarring.
- For invasive fungal rhinosinusitis, therapy requires reversing any underlying conditions, antifungal treatment, and surgical debridement while avoiding mutilating procedures if the immunocompromised status cannot be reversed.
Mount Sinai Otolaryngology Specialty Report 2018Lisa Chase
1) Dr. Wanna developed an endoscopic technique for removing glomus tumors without external incisions using a suctioning endoscope. This reduces pain for patients and allows for improved visualization for surgeons compared to traditional open surgery.
2) A clinical trial at Vanderbilt University and Mount Sinai found a 100% success rate with improved hearing and no complications using this new endoscopic technique.
3) The endoscopic approach is becoming the new gold standard for removing smaller glomus tumors as it provides benefits over traditional open surgery such as reduced pain, scarring and faster recovery times for patients.
Carcinoma neuroendocrino del setto un rarissimo tumore nasaleMerqurio
This document presents a case report of a 73-year-old male with a rare small cell neuroendocrine carcinoma arising from the nasal septum. The patient presented with right-sided nasal obstruction, hyponasal speech, and recurrent epistaxis. Imaging showed a mass in the right nasal cavity extending to surrounding structures. The tumour was removed endoscopically and pathology confirmed a small cell neuroendocrine carcinoma. Due to the aggressive nature of this tumour type, the patient received combined chemotherapy and radiation in addition to surgery. At a 10-month follow-up the patient remained free of disease. Small cell neuroendocrine carcinoma of the nasal cavity is an extremely rare and aggressive tumour that is difficult to diagnose but requires
The document discusses yeast molecular biology and genetics. It provides information on commonly used yeast species Saccharomyces cerevisiae and Schizosaccharomyces pombe. It discusses yeast genome, life cycle, vectors, cloning, transformation methods, and applications including gene expression and making mutants.
The document discusses Dominion Resources' customer billing services and their efforts to improve billing processes and reduce exceptions. It outlines Dominion's assets and customer base. It then describes the history of inconsistent billing practices across different regions. The company implemented a Six Sigma approach to define 30 projects aimed at process improvements like eliminating non-value added work. Challenges included lack of IT resources and experience, but strategies like developing tools and audit controls helped overcome these. Metrics improved with reduced backlogs and exceptions, and billing agent numbers decreased. Future focus areas include becoming truly exception-based and further analyzing and controlling work processes.
BONKMILLON Unleashes Its Bonkers Potential on Solana.pdfcoingabbar
Introducing BONKMILLON - The Most Bonkers Meme Coin Yet
Let's be real for a second – the world of meme coins can feel like a bit of a circus at times. Every other day, there's a new token promising to take you "to the moon" or offering some groundbreaking utility that'll change the game forever. But how many of them actually deliver on that hype?
Economic Risk Factor Update: June 2024 [SlideShare]Commonwealth
May’s reports showed signs of continued economic growth, said Sam Millette, director, fixed income, in his latest Economic Risk Factor Update.
For more market updates, subscribe to The Independent Market Observer at https://blog.commonwealth.com/independent-market-observer.
2. Elemental Economics - Mineral demand.pdfNeal Brewster
After this second you should be able to: Explain the main determinants of demand for any mineral product, and their relative importance; recognise and explain how demand for any product is likely to change with economic activity; recognise and explain the roles of technology and relative prices in influencing demand; be able to explain the differences between the rates of growth of demand for different products.
Vicinity Jobs’ data includes more than three million 2023 OJPs and thousands of skills. Most skills appear in less than 0.02% of job postings, so most postings rely on a small subset of commonly used terms, like teamwork.
Laura Adkins-Hackett, Economist, LMIC, and Sukriti Trehan, Data Scientist, LMIC, presented their research exploring trends in the skills listed in OJPs to develop a deeper understanding of in-demand skills. This research project uses pointwise mutual information and other methods to extract more information about common skills from the relationships between skills, occupations and regions.
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Independent Study - College of Wooster Research (2023-2024) FDI, Culture, Glo...AntoniaOwensDetwiler
"Does Foreign Direct Investment Negatively Affect Preservation of Culture in the Global South? Case Studies in Thailand and Cambodia."
Do elements of globalization, such as Foreign Direct Investment (FDI), negatively affect the ability of countries in the Global South to preserve their culture? This research aims to answer this question by employing a cross-sectional comparative case study analysis utilizing methods of difference. Thailand and Cambodia are compared as they are in the same region and have a similar culture. The metric of difference between Thailand and Cambodia is their ability to preserve their culture. This ability is operationalized by their respective attitudes towards FDI; Thailand imposes stringent regulations and limitations on FDI while Cambodia does not hesitate to accept most FDI and imposes fewer limitations. The evidence from this study suggests that FDI from globally influential countries with high gross domestic products (GDPs) (e.g. China, U.S.) challenges the ability of countries with lower GDPs (e.g. Cambodia) to protect their culture. Furthermore, the ability, or lack thereof, of the receiving countries to protect their culture is amplified by the existence and implementation of restrictive FDI policies imposed by their governments.
My study abroad in Bali, Indonesia, inspired this research topic as I noticed how globalization is changing the culture of its people. I learned their language and way of life which helped me understand the beauty and importance of cultural preservation. I believe we could all benefit from learning new perspectives as they could help us ideate solutions to contemporary issues and empathize with others.
[4:55 p.m.] Bryan Oates
OJPs are becoming a critical resource for policy-makers and researchers who study the labour market. LMIC continues to work with Vicinity Jobs’ data on OJPs, which can be explored in our Canadian Job Trends Dashboard. Valuable insights have been gained through our analysis of OJP data, including LMIC research lead
Suzanne Spiteri’s recent report on improving the quality and accessibility of job postings to reduce employment barriers for neurodivergent people.
Decoding job postings: Improving accessibility for neurodivergent job seekers
Improving the quality and accessibility of job postings is one way to reduce employment barriers for neurodivergent people.
1. 台灣顱底外科醫學會第四屆第一次會員大會暨學術研討會
地點:台北榮總致德樓第一會議室 (台北市石牌路二段 201 號)
Scientific Program ( 97 年 11 月 15 日 星期六 )
時間 議程
08:00~08:45 會員報到
08:45~09:00 潘宏基理事長 Opening remark
學術演講 座長 演講者 題目
9:00~9:20 曾漢民 鄭澄懋 Modified Orbitozygomatic Craniotomy for Medial Wing
魏志鵬 Meningiomas: cadaver dissection and report of five
consecutive cases
9:20~10:00 杜永光 Professor Surgery for the Foramen Magnum Meningioma
顏玉樹 Hongo
09:50~10:00 discussion
10:00~10:30 施養性 杜永光 Surgical approaches to cavernous sinus lesions
邱仲慶
10:30~10:45 Coffee break
10:45~11:15 高明見 潘宏基 Gamma Knife Surgery for the treatment of cavernous sinus
hemangioma and AV fistulas involving cavernous sinus
陳敏雄
11:15~11:35 張承能 侯勝博 Changing Paradigm in Skull Base Surgery- from open to
endoscopic
關皚麗
11:35~11:55 洪純隆 沈炯祺 Neuroendoscopic history and future development
陳幸鴻
11:55~12:30 台灣顱底外科醫學會第四屆第一次會員大會暨理監事選舉
12:30~14:00 Lunch (中正一樓誠品生活廣場) (第三屆理監事:中正一樓蘇杭餐廳)
14:00-14:25 何青吟 張凱評 Identification of Macrophage Inflammatory Protein 3α as a
Novel Serum Marker for Nasopharyngeal Carcinoma from
cDNA microarray
14:25~14:50 邵國寧 李明陽 Skull base reconstruction with free ALP flap
許永信
14:50~15:15 黃勝雄 顏玉樹 Endoscopic transnasal transclival odontoidectomy
陳明德
15:15~15:40 陳翰容 劉安祥 Meningiomas of the craniovertebral junction
15:40~16:10 Coffee break(第四屆第一次理監事會議:選舉常務理監事及理事長 )
16:10~16:30 蘇泉發 梁正隆 Gamma Knife Radiosurgery for skull base tumors
劉康渡
16:30~16:50 郭萬祐 駱子文 Gamma Knife Radiosurgery for Head and Neck Malignancy
Invading Base of Skull – The Tzu-chi Experience
1
2. 任森利
16:50~17:05 陳冠助 張軒凱 Multiple meningiomas of different pathologic types in a
patient—a case report
黃文成
17:05~17:20 蔣永孝 楊懷哲 Trigeminal Neuralgia: Review of current treatment and our
experience
17:20~17:35 鍾文裕 李政家 Vestibular evoked myogenic potential (VEMP) in
radiosurgery-treated patients with acoustic neuromas
17:35~18:00 Shuttle bus to 僑園餐廳
18:00~ 晚宴
Modified Orbitozygomatic Craniotomy for Medial Wing Meningiomas:
cadaver dissection and report of five consecutive cases
鄭澄懋
三軍總醫院
Abstract
Medial wing meningiomas reside on the medial sphenoid ridge, which is a one-centimeter cliff-like
bony structure where content of cavernous sinus, optic nerve, and cranial internal ceratoid artery are
closely bounded to each other. Historically, these cranial base meningiomas were treated with
traditional frontotemporal craniotomy and the outcome had not been promising largely because of the
excessive brain retraction. Cranial base approaches with modern microneurosurgical techniques yield
better results. However, these kind of cranial base approaches often cope with some extension of
zygomatic arch, which associated with somewhat morbidity. We report the methods and results of
using MOZC, without any resection of zygomatic arch, to access five consecutive large medial
sphenoid wing meningiomas.
The modified orbitozygomatic craniotomy (MORC) is a reform of skull base approach with the
characteristics of its simplicity and wide exposure. Since this approach was newly introduced to the
neurosurgical society lately in 2003, its clinical reports are few. The goal of this presentation is to
advocate its clinical feasibility. In the following five years, five consecutive patients harboring large
(> 4 cm) sphenoid wing meningiomas were treated with MORC. Total brain tumor removal was
achieved in all patients. There is no mortality in this series of follow-up. One patient was complicated
with the postoperative epidural hematoma and evacuated on the same operative day. All patients
returned to their own daily activity without neurological sequella. The MORC is the option of choice
in treating large upper-third clival lesion while the standard frontotemporal craniotomy is considered
2
3. to give less surgical rooms. To our knowledge, this is the first report of treating sphenoid wing
meningiomas with MOZC.
3
4. Surgery for the foramen magnum meningioma
Kazuhiro Hongo, Tetsuya Goto, Keiichi Sakai
Department of Neurosurgery, Shinshu University School of Medicine, Matsumoto, Japan
Even with the recent advancement of the skull base approaches and techniques, surgery for the
ventral foramen magnum remains challenging. To accomplish safe resection, microsurgical anatomy
of this region should be fully understood. To achieve a satisfactory result for removing the ventral
foramen magnum meningioma, adequate exposure with applying a skull base approach taken from the
inferolateral side, and gentle manipulation to dissect the tumor from the surrounding critical structures
without compressing the medulla oblongata are essential. The intraoperative electrophysiological
monitoring is also quite helpful.
In the presentation, key points for the surgical approach to this lesion as well as the anatomy of the
foramen magnum are shown. Representative cases of meningioma surgery will be presented.
4
6. Gamma Knife Surgery for the Treatment of Cavernous Sinus Hemangiomas and
AV Fistulas Involving the Cavernous Sinus
潘宏基
David Hung-Chi Pan, M.D.
台北榮總神經外科
Department of Neurosurgery, Taipei Veterans General Hospital
Introduction: Surgery for tumors or vascular lesions involving the cavernous sinus poses difficulty
due to the risks of excessive bleeding. This report presents our 15-year experience in Gamma Knife
surgery (GKS) for the treatment of cavernous sinus cavernous hemangiomas (CHs) and dural
arteriovenous fistulas (DAVFs). The characteristic imaging findings of CHs, differential diagnosis
from other benign tumors, radiosurgical methods, results and patients’ outcome are described.
Material and methods: A total of 444 patients with cavernous sinus lesions were treated by GKS at
the Taipei VGH between 1993 and 2008. Among them 265 were neoplasms and 179 were DAVFs.
Cavernous sinus hemangiomas account for 2% (6 patients) of all tumors in the cavernous sinus. These
rare but difficult tumors can be distinguished from more commom meningiomas based on the
characteristic MR finding that T2-weighted images show marked hyperintensity. The median age of
CH patients was 49y/o. Female was predominant with a male/female ratio of 2/4. Pre-treatment
manifestations included headache, visual loss, oculomotor and abducence palsies. Tumor volume
ranged 2.9-23.1ml. During radiosurgery, precise stereotactic targeting and irradiation using multiple
small shots to obtain a conformal, high-dose treatment were achieved. Average marginal / maximum
dose were 13/23 Gy respectively.
For the 179 DAVF patients, GKS was applied to treat AV shunts involving the wall of the
cavernous sinus. Feeders on the dural wall both from ICA and ECA were irradiated while optic nerves
were carefully protected. After treatment, patients were regularly followed by MRI/MRA and doppler
ultrasound to assess flow of the superior ophthalmic veins. Cerebral angiography was performed 2
years post-treatment to verify complete obliteration.
Results: Five of six cases with CHs had received regular MRI follow-up study (FU range 6-156,
mean 40 months). Clinically, all patients showed remarkable symptomatic improvement with
resolution of headache, diplopia or visual impairment. There was no complication or mortality. Tumor
volume measurement in follow-up MRI showed 80% reduction of the volume, with rapid regression
of the tumor within 3-6 months. For comparison, the average volume change of our 84 meningiomas
only showed 29% reduction. The statistical difference of volume changes between CHs and
meningiomas was significant (p=0.0023).
For the DAVF patients, 90% showed clinical improvement with disappearance of red eyes,
chemosis, or double vision. Follow-up in 105 patients based on Kaplan-Meier study showed 70% cure
rate in the first year and 90% in the second year. There was 6% with persisted symptoms or recurrence
2 years post-treatment.
Conclusion: GKS is a safe and effective alternative treatment for cavernous sinus hemangiomas and
6
7. dural AV fistulas. The characteristic MRI findings of CH before and after GKS allow us to select
proper cases for the treatment.
7
8. Changing Paradigm in Skull Base Surgery- from open to endoscopic
Sheng-Po Hao MD, FACS, FICS
Professor & Chairmen, Department of Otolaryngology Head and Neck
Chang Gung Memorial Hospital
Chang Gung University
Surgical approach is the cornerstone of a successful skull base surgery. For the anterior cranial base
lesions, craniofacial resection is the standard approach.
However, with the modern development of endoscope and vast advance of technology in navigation
system, an open wide field approach which usually carries unavoidable morbidity is no longer always
considered feasible. Rather, endoscopic approach, endoscopic resection and encoscopic reconstruction
seems justified if the oncological results is not inferior to open method. However, we have to keep in
mind that the only thing changed in endoscopic resection is the way to remove the tumor,
nevertheless, the extent of resection and the control of surgical margin remain exactly the same with
the open method. Thus, we may reach the same oncological results but having fewer surgical
morbidity. The future trend is to change the paradigm in skull base surgery from open to endoscopic.
8
10. Identification of Macrophage Inflammatory Protein 3α as a Novel Serum Marker for
Nasopharyngeal Carcinoma from cDNA microarray
Kai-Ping Chang, M.D., Ph.D.; Ku-Hao, Fang, M.D.; Sheng-Po Hao, M.D., FACS
張凱評, 方谷豪, 侯勝博
Department of Otolaryngology-Head & Neck Surgery, Chang Gung Memorial Hospital, Lin-Kou
Medical Center, Tao-Yuan, Taiwan
長庚紀念醫院林口醫學中心耳鼻喉部頭頸外科
Introduction: From differential expression profiles analyzed using cDNA microarray between paired
nasopharyngeal carcinoma (NPC) and pericancerous normal epithelium, we identified two sets of
genes which were up-regulated/ down-regulated in NPC tumors and associated with immune
response. Among these genes, we found the most up-regulated gene, macrophage inflammatory
protein (MIP)-3α might be a potentially novel tumor marker. We herein examine whether MIP-3α is a
biomarker for NPC, and whether it is involved in modulating NPC cell functions.
Materials & Methods: The study population comprises 275 NPC patients and 250 controls. MIP-3α
levels in tissues and sera were examined by immunohistochemistry and ELISA, respectively. EBV
DNA load and EBV VCA IgA were measured by qRT-PCR and immunofluorescent assay,
respectively. MTT assays were done to investigate the role of MIP-3α on NPC cell proliferation.
Effects of MIP-3α on NPC cell motility were investigated by trans-well migration/invasion assays and
RNA interference.
Results: MIP-3 α was over-expressed in NPC tumor cells. Serum MIP-3α levels were significantly
higher in untreated patients, recurrent patients and patients with distant metastases versus non-NPC
controls, patients with complete remission, and long-term disease-free patients. In the prospective
cohort, serum MIP-3α levels were significantly higher in untreated NPC patients with advanced TNM
stage versus early stage, and also correlated with EBV DNA load. Measurement of MIP-3α, EBV
DNA and VCA IgA levels in serial serum/plasma samples from treated patients at 6-month intervals
revealed a high association between MIP-3α level, EBV DNA load and disease status. Among 155
consecutive NPC patients, subjects with pre-treated MIP-3α serum levels over 65 pg/ml had worse
prognoses for overall survival and distant metastasis-free survival in univariate and multivariate
analysis. Additionally, cell functional assays showed that MIP-3α had no obvious effect in the NPC
cell proliferation but contributed to migration and invasion of NPC cells, which could be effectively
inhibited by MIP-3α knock-down.
Conclusions: From the analysis derived from the results of cDNA microarray, we discovered the up-
regulation of MIP-3α and found that MIP-3α may be a novel biomarker and prognosticator for NPC
and is involved in migration and invasion of NPC cells.
Anterior Skull Base Reconstruction with Free Anterolateral Thigh Flap –
NCKUH Experience
前側大腿皮瓣重建顱底缺損:成大醫院之經驗
Ming-Yang Lee E-Jian Lee
10
11. Division of Neurosurgery, Department of Surgery, National Cheng- Kung University Hospital
李明陽 李宜堅
成大醫院神經外科
Summary
Defects at the anterior skull base were not commonly found after head trauma and skull base tumor
resection. Reconstruction of the anterior skull base defect is paramount to prevent postoperative
complications such as cerebrospinal fluid (CSF) leakage and meningitis ascending infection from
underlying aerodigestive tract. Several reconstructive methods of the anterior skull base have been
reported .
From February 2004 to July 2008 the anterior skull base reconstructions were performed in 17
patients. In 9 patients the defects were related to the head and neck tumors and 8 patients related to the
severe head trauma with comminuted fractures in the anterior cranial base. Reconstructions with
galeopericranial flaps were used in fifteen patients and free anterolateral thigh (ALT) flap were
performed in two patients due to large head and neck defect and reoperation. There were no CSF
leakage and postoperative meningitis.
By a multidisciplinary surgical team approach, there is an increasing role for reconstruction of
complex anterior cranial base resection defects using microvascular surgical techniques.
11
12. Endoscopic Trans-nasal Trans-clival Odontoidectomy:
A New Approach to Decompression
Jau-Ching Wu, M.D.1,2,3,4, Wen-Cheng Huang, M.D.1,2,3, Henrich Cheng, M.D., Ph.D.1,2,3,4 , Mu-Li
Liang, M.D.1,3, Ching-Yin Ho, M.D., Ph.D.3,5, Yang-Hsin Shih, M.D.1,3, Yu-Shu Yen M.D.1,3
Objectives:
Endoscopic trans-nasal trans-clival resection of the odontoid process is less invasive than the standard
trans-oral odontoidectomy. We describe here our techniques that are less invasive but provided
successful decompression.
Presentations:
From September 2004 to April 2007, three consecutive patients with basilar invagination and
instability in the cranio-vertebral junction were enrolled in this report. The etiologies included
rheumatoid arthritis in two and trauma in one, and all presented with myelopathy and quadriparesis
prior to the interventions.
Interventions:
All of the three patients underwent an endoscopic trans-nasal trans-clival approach for anterior
decompression and resection of the displaced odontoid process and pannus, in order to decompress the
underlying medulla. Subsequently, they received occipital-cervical fixation by lateral mass screws and
bone fusion to ensure stability. Remarkable neurologic recovery was observed after surgery in all and
no adverse effects were noted.
Conclusions:
Compared to the standard trans-oral approach, the trans-nasal trans-clival endoscopic approach for
decompressing basilar invagination is a feasible and effective alternative that avoids common
disadvantages like prolonged intubation, excessive tongue retraction, and need for palatal incision.
12
13. Meningiomas of the craniovertebral junction
Ann-Shung Lieu, Shiuh-Lin Hwang and Shen-Long Howng
顱脊椎處腦膜瘤
劉安祥 黃旭霖 洪純隆
Department of Neurosurgery, Kaohsiung Medical University Hospital
高雄醫學大學附設醫院 神經外科
Tumors of the foramen magnum are found infrequently and, due to their insidious
onset, they resemble degeneration diseases of the central nervous system.
Meningiomas are the most common benign tumors of the foramen magnum. They
represent about 1.8% of all meningiomas. Most of these lesions can be resected using
traditional posterior approaches, but some anterior and anterolateral lesions are difficult
to be resected via traditional methods due to inadequate exposure. Therefore,
management of lesions situated in the anterior foramen magnum, lower livus, and
anterior aspect of the upper cervical area is a challenging issue for neurosurgeon.
Mehtods of treating these lesion includes transoral, transuncodiscal, and lateral
suboccipital approaches, the last of which has undergone several modifications
including the for-lateral suboccipital, dorsolateral suboccipital transcondylar, and
extreme lateral transcondylar variations. Lateral suboccipital approaches and
modificational exposure can be satisfactory with minimal or no retraction of important
neurovascular structures in the region.
13
14. Gamma Knife Radiosurgery for Skull Base Tumors
Cheng-Loong Liang, Kang Lu, Han-Jung Chen
Department of Neurosurgery, E-Da Hospital, I-Shou University, Kaohsiung
Tumors located at the skull base are among the most difficult problems that neurosurgeons
encounter. Management of patients with skull base tumors must take into account that complete tumor
removal is not possible with acceptable morbidity in many patients. Therefore, radiation therapy and
stereotactic radiosurgery (SRS) are commonly performed. The use of radiosurgery for patients with
skull base tumors has increased significantly over the past two decades. The goal of radiosurgery is
cessation of tumor growth and preservation of neurological function. The technique of radiosurgery
has evolved due to improved imaging, better radiosurgical devices and software, and the continued
analysis of results. In this report, the authors discuss technical concepts and present the preliminary
results of skull base radiosurgery treated by Gamma knife in E-Da hospital.
At our center we used Gamma Knife SRS for a variety of benign, extraaxial basal tumors. These
included schwannomas, meningiomas, hemangiomas, pituitary adenomas, craniopharyngiomas. For
properly selected patients with benign tumors (meningiomas, schwannomas, glomus tumors), tumor
control rates between 90 and 100% have been reported. Radiosurgery is also commonly performed for
patients with malignant skull base tumors as a palliative treatment and symptom relief is common,
especially for patients with cranial nerve involvement related to their tumor.
14
15. Gamma Knife Radiosurgery for Head and Neck Malignancy Invading Base of
Skull – The Tzu-chi Experience
Tzu-wen Loh1, Tsung-lang Chiou1, Pao-sheng Yen2, Dai-wei Liu3, Peir-rong Chen4, Chain-fa Su1
駱子文 1, 邱琮朗 1, 嚴寶勝 2, 劉岱瑋 3, 陳培榕 4, 蘇泉發 1
Department of Neurosurgery1, Department of Radiology2, Department of Radiation-Oncology3,
Department of Otolaryngology4, Buddhist Tzu-Chi Medical Center, Hualien, Taiwan, R.O.C.
花蓮慈濟醫學中心 神經外科 1, 影像醫學科 2, 放射腫瘤科 3, 耳鼻喉科 4
Introduction: Although less common, local invasion of head and neck malignancy into skull base
might be disclosed. This kind of extension remains challenging to skull base surgeons because of
vulnerability of nearby vital neurological strutures. Fortunately, lots of head and neck malignancy are
radio-sensitive. Thus, Gamma knife radiosurgery might hold an evolving position in treatment of
extensive skull base invasion of head and neck malignancy.
Materials & Methods: From November 2003 to August 2008, 10 patients with local skull base
invasion of head and neck malignancy were referred from our otolaryngology department. Before
referral, operations for radical excision were all applied to these patients. There were 3 women and 7
men in this group, and the mean age was 46.7 years old. The entities of disease diagnosis included
NPC in 3, buccal cancer in 2, hypopharyngeal cancer in 2, parotid gland tumor in 1, and salivary
gland neoplasm in 1 patient, and another patient suffered from olfactory neuroblastoma. The mean
tumor volume of skull base extension was 12.8 c.c. (range: 8.8 to 36.8 c.c.). Gamma knife
radiosurgery was arranged to these patients and the mean prescription dosage was 18.6 Gy (range: 18
to 20 Gy). Some extensive tumor masses were so close to optic apparatus that dosage of 8 Gy was
adapted as safe upper limit of irradiation within the optic apparatus.
Results: The follow-up periods in these patients were 11 to 28 months. 5 patients encountered
mortality during follow-up due to primary disease progression. No marked neurological deficits were
noted within these patients.
Conclusions: From our preliminary experiences, Gamma knife radiosurgery might be a safe and
useful tool when dealing with local skull base invasion of head and neck malignancy. It might also be
put into consideration of co-operation between otolaryngologists and neurosurgeons, especially when
the skull base extension was around cavernous sinus, optic apparatus, or other important but
vulnerable structures. The long-term follow-up and evaluation is, nevertheless, still in necessity.
15
16. Multiple meningiomas of different pathologic types in a patient:
a case report
Hsuan-Kan Chang, MD Li-Yu Fay, MD Chun-Fu Lin, MD Min-Hsiung Chen, MD, PhD
張軒侃, 費立宇, 林俊甫, 陳敏雄
Department of Neurosurgery, Neurological Institute,
Taipei Veterans General Hospital, Taipei, Taiwan, R.O.C.
台北榮總神經醫學中心神經外科
Abstract:
Multiple meningiomas(MM) are considered rare disease entity, which accounts for 5.9-10.9% of all
meningiomas from literature review. Most MM removed from the same person showed identical
pathological subtype. The authors report a case of multiple meningiomas with different pathologic
subtypes. The patient is a 67-years-old female with the initial presentation of right eye ptosis. MRI
revealed four spatially separated meningiomas located at right parasagittal, bilateral cavernous
sinuses, and left planum sphenoidale, respectively. The surgeons removed three of them in one
operation and pathology showed three different subtypes of meningiomas, namely meningothelial,
fibrous, and secretory types. Special immunohistochemistry such as progesterone receptor(PR), p53,
and MIB-1 LI were performed and compared with literature results.
16
17. Trigeminal Neuralgia: Review of current treatment and our experience
楊懷哲 劉康渡 鐘文裕 潘宏基
台北榮總神經外科
Trigeminal neuralgia (TN) is the most common facial neuralgia, and is considered to be one of the
most painful conditions to affect patients. TN is generally characterized by lancinating, unilateral,
paroxysmal pain occurring in the distribution of the fifth cranial nerve. Generally, TN can be diagnosed
by the typical patient history, a negative neurologic exam, and response to a trial of carbamazepine.
Imaging studies should be considered if the diagnosis is uncertain or neurologic abnormalities are
noted. Most cases are caused by compression of the trigeminal nerve root, usually within a few
millimeters of entry into the pons. The treatment modalities for the management of TN may be
divided into medical, surgical, and gamma-knife radiosurgery. Generally, response to drug therapy is
good, with over 80% of patients responding to some of the anticonvulsants. Percutaneous approaches
to trigeminal gangliolysis are considered to have less associated risk and less cost than open surgical
procedures. Open surgical procedures used in the treatment of TN include microvascular
decompression of the trigeminal root and retrogasserian rhizotomy. Additionally, because both of
these procedures have greater associated risks, morbidity, and mortality, they are customarily applied
only to younger patients in good health. Stereotactic radiosurgery has been established as an
alternative treatment for patients who do not respond to optimal medical management.
We began use of this technique at our center in 1995 and have evaluated outcomes serially.
Independently acquired data from 207 patients with idiopathic TN that had Gamma Knife radiosurgery
was reviewed. 29 patients received twice Gamma-kinfe treatment and 2 patients received three times
due to recurrent pain.The maximal radiosurgery dose was 80 Gy with a range of 70 to 90 Gy. One
hundred patients (48.3%) had prior surgery or radiofrequency treatment. Patients were followed to a
maximum of 10.5 years (mean, 28 months). Complete or partial pain relief was achieved in 58.5% of
patients at 1 year. The absence of prior surgery correlated with an increased proportion of patients in
complete or partial pain relief over time (65.4%). 5.8% of patients developed new or increased
subjective facial paresthesia or facial numbness. Radiosurgery for idiopathic TN was safe and effective
and is an important addition to the surgical armamentarium for TN.
17
18. Vestibular evoked myogenic potential (VEMP) in acoustic neuromas treated by
Gamma-knife radiosurgery --- preliminary study
聽神經瘤經伽馬刀治療後之前庭誘發肌性電位---初步研究
李政家 楊懷哲 劉康渡 鍾文裕 潘宏基 王懋哲 蕭安穗
台北榮民總醫院 神經外科 耳鼻喉科
Introduction The ventricular evoked myogenic potential (VEMP) test showed abnormal results in
80% of acoustic neuroma (AN). Although the sensitivity of VEMP was lower than that of ABR test, it
is useful in neurophysiology to classify the origin of ANs. Besides, pure tone audiogram (PTA) and
Calori test give us additional information to differentiate the nature of ANs. In this preliminary study,
we hope to study the VEMP in ANs treated by Gamma-knife radiosurgery.
Patients and methods Ten AN patients was recruited, and we performed PTA, Calori test, and
VEMP. We defined 30dB loss as abnormal PTA finding, canal paralysis (Jonkees’ formula) > 20% as
abnormal Calori test, and evoked potential ratio (EPr) >30% as abnormal VEMP results. We also
calculate the volume of tumors, to correlate the results of PTA, Calori, and VEMP test. Finally,
compare pre-GKS and post-GKS VEMP (EPr) results.
Results The PTA, Calori test , and VEMP test showed abnormal results in 80%, 60% and 60% ANs,
respectively. Hearing impairment, tinnitus, and dizziness were happened in 90%, 70%, 60% ANs,
respectively. PTA, Calori test, and VEMP results were not correlated each other. The larger tumor, the
more severe results in PTA, Calori test, and EPr were found. The tumor volume can be calculated =
-0.875 + 1.040*(PTA) + 2.350*(Calori test) + 2.175*EPr. Finally, all tests (PTA, Calori test, and
VEMP) are progressing in first month followed-up after Gamma knife radiosurgery.
Discussion All three tests can help use to differentiate the nature of tumors. The three tests are
independent in the small volume of tumor, although all tests are abnormal in large volume of tumor.
Our followed-up post radiosurgery still in proceed, and need more time to observe the outcome of the
ventricular functional recover.
*********************************************************************************
18
19. 9:00~9:20
Name: 鄭澄懋 Cheng-Mao Cheng
(Also known as: Robert C.M. Cheng)
Professional Address: Division of Neurological Surgery
Tri-Service General Hospital,
e-mail: aamour@tpts5.seed.net.tw
Date of Birth: 18 August, 1964
Education:
1990 Bachelor of Medicine
National Defense Medical Center, Taipei, Taiwan
Speical Training:
1988- 1990 Medical Internship
Tri-Service General Hospital, Taipei, Taiwan
1992- 1994 General Surgery
Tri-Service General Hospital, Taipei, Taiwan
1994.1997 Neurological Surgery Residency
Tri-Service General Hospital, Taipei, Taiwan
1997.1998 Neurological Surgery Chief Resident
Tri-Service General Hospital, Taipei, Taiwan
1998.1999 Visiting doctor of Neurological Surgery,
Pen-Hoo Army Hospital, Pen-Hoo, Taiwan
1999.2000 Attending doctor of Neurological Surgery,
Tri-Service General Hospital, Taipei, Taiwan
2001-2002 Reaserch fellowsip in skull base surgery and neuroradiology in Oregon Health &
Science University
2002.2007 Attending doctor of Neurological Surgery,
Tri-Service General Hospital, Taipei, Taiwan
Activity:
Member of Surgical Association, Republic of China
Member of Neurosurgical society, Taiwan
Interests: Mountain climbing, fishing, photography.
19
20. Research Experience:
1. Skull base Surgery
2. Spinal cord repair on rat
Division of Neurological Surgery
Tri-Service General Hospital
Advisor: Shinn-Zong Lin, Ph.D.
Presentation:
1. Cheng-Mao Cheng, Shinn-Zong Lin, Yung-Hsiao Chiang, Ming-Ying Liu:
Correlation of monitoring of laser Doppler flowmetry and intracranial pressure in severe head-
injuried patients: a preliminary result in Tri-Service General Hospital
Annual meeting of Surgical Society,R.O.C., 1998
Presented by Cheng-Mao Cheng
2. Cheng-Mao Cheng, Shinn-Zong Lin, Yung-Hsiao Chiang, Ming-Ying Liu:
Intracranial pressure monitoring in severe head-injured patients: a practical method
in delineation of adequate cerebral perfusion pressure and the preliminary result in Tri-Service
General Hospital.
11th Internaional Congress of Neurological Surgery, July 1997
Presented by Cheng-Mao Cheng
3. Cheng-Mao Cheng, Shinn-Zong Lin, Yung-Hsiao Chiang, Ming-Ying Liu:
The application of the stereotactiv craniotomy with removal of tumor under laser guide
Annual meeting of Surgical Society,R.O.C., 1997
Presented by Cheng-Mao Cheng
4 Cheng-Mao Cheng, Rochey Chao, Shinn-Zong Lin, Ming-Ying Liu:
Posterior atlantoaxial interarticular screw fixation as an alternative option for treatment of
type II Odontoid Fracture complicated by failure of anterior odontoid screw fixation—a
case report
Annual meeting of Surgical Society, R.O.C., 1996
Presented by Cheng-Mao Cheng
5. Cheng-Mao Cheng, Gregory J Anderson, Frank Hsu, Akio Noguchi, Aclan Dogan, Sean O
McMenomey:
Quantitative comparison of the supraorbital keyhole, pterional and supraorbital subfrontal
approaches to the parasellar region
Annual Meeting of North America Skull Base Society, California, USA, 2002
Presented by Cheng-Mao Cheng
20
21. 6. Cheng-Mao Cheng, Frank Hsu, Akio Noguchi, Aclan Dogan, Sean O McMenomey, Johnny
B Delashaw:
Topography of skull base in relation to fisher’s segmental nomenclature of intracerebral
artery
Annual Meeting of North America Skull Base Society, California, USA, 2002
Presented by Cheng-Mao Cheng
Publication:
1. Cheng-Mao Cheng, Ming-Ying Liu, Bao-Chiien Chang, Cheng-Ti Cheng. Detection of radiation necrosis with Thallium-201 and
Technetium-99m DTPA single-photon emission computed tomography in a patient with irradiated malignant glioma. Annal of
Nuclear Medicine and Sciences.Vol. 10, No. 1, 5-8, 1997
2. Cheng CM, Chiang YH, Fan YM, Huang WS, Cheng CY. Localization of Abscess in Dural Graft with Fusion Image of Gallium-67
CT-SPECT. 核子醫誌 17:225-228, 2004
3. Cheng CM, Alpha fetoprotein producing immature teratoma of the pinel region without components of endodermal sinus tumour. J of
Clin Neuroscience 13: 257-259, 2006
4. Vijayabalan Balasingam , Gregory J Anderson , Neil D Gross , Cheng-Mao Cheng , Akio
Noguchi , Aclan Dogan , Sean O McMenomey , Johnny B Delashaw Jr , Peter E
Andersen. Anatomical analysis of transoral surgical approaches to the clivus.
J Neurosurg. 2006 Aug ;105 (2):301-8
21
22. 9:20~10:00
Name: Kazuhiro Hongo, M.D., Ph.D.
Address (office): Professor and Chairman
Department of Neurosurgery
Shinshu University School of Medicine
3-1-1 Asahi, Matsumoto 390-8621, Japan
Tel : +81-263-37-2690, Fax: +81-263-37-0480
E-mail: khongo@hsp.md.shinshu-u.ac.jp
Date of Birth: December 10, 1953
Citizenship: Japanese
Medical School: Shinshu University School of Medicine
(April, 1974 - March, 1978)
Postgraduate Training & Professional Career:
1978 Junior Resident, Dept. of Neurosurgery, Shinshu Univ. School of Medicine
1979 Rotating Intern, Anesthesiology, Shinshu Univ. School of Medicine
1980 Fellow in Pharmacology, Shinshu Univ. School of Medicine
1981 Chief, Dept. of Neurosurgery, Matsumoto National Hospital
1982 Chief, Dept. of Neurosurgery, Shinonoi General Hospital
1984 Staff, Dept. of Neurosurgery, Shinshu Univ. School of Medicine
1986 Research Fellow, Dr. Kassell’s Cerebrovascular Research Laboratory, Dept. of Neurosurgery,
University of Virginia, USA
1988 Chief, Dept. of Neurosurgery, Showa-Inan General Hospital
1992 Assistant Professor, Dept. of Neurosurgery, Shinshu Univ. School of Medicine
1994 Associate Professor, Dept. of Neurological Surgery, Aichi Medical University
2001 Associate Professor, Dept. of Neurosurgery, Shinshu Univ. School of Medicine
2003 Professor and Chairman, Dept. of Neurosurgery, Shinshu Univ. School of Medicine
Fields of Research and Academic Interest:
Microsurgery of cerebrovascular diseases (AVM, aneurysm),
Skull base surgery (meningioma, neurinoma, etc.)
Microvascular decompression
Robotics surgery
Pharmacological research on cerebral vasospasm
22
23. 10:00~10:30
Yong-Kwang Tu, M.D.,Ph.D.
Birth Date:
April 9, 1948
Marital Status:
Married with 2 children (Spouse: Tso-Hsien Tu)
Current position:
Professor and Chairman, Department of Neurosurgery,
College of Medicine and Hospitals, National Taiwan University, Taipei, Taiwan
Medical education:
1976 M.D. School of Medicine, National Taiwan University, Taipei
1984 Ph.D. Institute of Clinical Medicine, National Taiwan University, Taipei
Postdoctoral training:
1976-1977 Resident in Internal Medicine
National Taiwan University Hospital, Taipei
1977-1980 Resident in Surgery (Neurosurgery)
National Taiwan University Hospital, Taipei
1980-1981 Chief Resident in Neurosurgery
National Taiwan University Hospital, Taipei
1984.1988 Fellow in Neurosurgery, Massachusetts General Hospital and
Harvard Medical School, Boston, U.S.A.
Academic Appointments
1987.1988 Instructor in Surgery (Neurosurgery), Harvard Medical School,
Boston, U.S.A.
1989.1991 Associate Professor in Neurosurgery (Non-tenure), National
Taiwan University
1991.1998 Associate Professor in Neurosurgery (Tenure), National Taiwan
University
1998- Present Professor in Neurosurgery (Tenure), National Taiwan University
2004- Present Chairman, Department of Neurosurgery, National Taiwan University
Other Appointments:
1982-1983 Chief, Department of Neurosurgery, King Fahd Hospital (Jeddah General
Hospital), Kingdom of Saudi Arabia
23
24. 1998.1999 Vice-President, Provincial Taoyuan Hospital, Taoyuan, Taiwan
1999-2000 President, Municipal Chung-Hsin Hospital of Taipei
2000-2001 Director, Taipei Stroke Center
Academic Societies:
2000-2002 Secretary General, International College of Surgeons
2001-2003 President, Taiwan Stroke Society
2001-2004 President, Asian-Oceanian Society for Skull Base Surgery
2003-2005 President, Taiwan Society for Skull Base Surgery
2005-2007 President, Taiwan Neurosurgical Society
2006-2009 President, International Congress on Cerebrovascular Surgery
2007-2011 President, Asian-Australasian Society of Neurological Surgeons
2009-2012 Second Vice President, World Federation of Neurosurgical Societies
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25. 10:45~11:15
Name: David Hung-Chi Pan, M.D.
Birth Date: Nov. 9, 1947, Male, Birth Place: Taiwan
Present Position:
(1) Director, Gamma Knife Center, Neurological Institute,
Taipei Veterans General Hospital, 1993 till now
(2) Chief, Division of Functional Neurosurgery, Neurological Institute, Taipei Veterans General
Hospital, 1989 till now
(3) Professor of Surgery, Faculty of Medicine, National Yang-Ming University, 2003 till now
(4) Delegate, Radiosurgery Committee, World Federation of Neurological Surgery (WFNS).
(5) President, Taiwan Society for Skull Base Surgery, 2007-2008
Experience:
(1) Resident, Department of Surgery, Taipei Veterans General Hospital, 1974-1977
(2) Attending Neurosurgeon, Neurological Institute, Taipei Veterans General Hospital,
1979-1989
(3) Clinical Fellow, Department of Neurosurgery, Karolinska Hospital, Sweden, 1981-1982
(4) Associate Professor, Faculty of Medicine, National Yang-Ming University, 1985 – 2003
Education: (1) Taipei Medical University, Taipei, Taiwan, 1966-1973
(2) Karolinska Institute, Stockholm, Sweden, 1981-1982
Society Membership:
(1) World Society for Stereotactic and Functional Neurosurgery since 1989
(2) International Stereotactic Radiosurgery Society since 1992
(3) Leksell Gamma Knife Society since 1992
(4) World Federation of Neurological Surgery, Radiosurgical Committee since 1995
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26. (5) Taiwan Neurosurgical Society since 1993
(6) Chinese Medical Association (Taipei) since 1974
(7) Surgical Association, Taiwan since 1974
26
31. 14:25~14:50
姓 名:(中文) 李明陽 (個人照片)
Name: (英文 ) Ming-Yang Lee
職 稱:□ Professor □ Associate professor ■ Assistant professor
□ Lecturer ■醫師 _□ Others________
單 位:(中文) 國立成功大學醫學院附設醫院外科部神經外科
(英文 ): Department of Surgery, National Cheng-Kung University
Hospital
Appointments(現職):Clinical Assistant Professor in Surgery (Neurosurgery),
National Cheng Kung University Medical School.
Address : Neurosurgical Service, Department of Surgery (Neurosurgery),
National Cheng Kung University Medical Center and Medical School.
138 Shen-Li Road, Tainan, Taiwan.
E-mail: leemy@mail.ncku.edu.tw
TEL:06- 235-3535 ext 5181 FAX:06- 276-6676
Education (學位): Ph.D. candidate: Biomedical Engineering, National Cheng Kung
University, Tainan, Taiwan.
Professional activities (經歷)
• Fellowship in Neurological & Neurosurgical Departments, University of
Massachusetts Medical School, Worcester, MA, USA
• Fellowship in Neurosurgical Departments, Brigham & Women Hospital, Boston,
MA, USA
Research Interest (研究興趣):
1. Biomechanics of Spine 2. Neurooncology 3. Cerebral blood flow and metabolism
31
32. 14:50~15:15
Name: Yu-Shu Yen ( 顏玉樹 )
Date of Birth: October 10, 1962
Sex: Male
Birthplace: Chya-Yi, Taiwan, R.O.C. (中華民國,台灣,嘉義縣)
Citizenship: Taiwan, Republic of China
Family: Married, one son and one daughter
Office Address: Department of Neurosurgery,
Neurological Institute,
Veterans General Hospital-Taipei
No. 201, Sec 2, Shih-Pai Road,
Shih-Pai, Taipei, Taiwan 112
Republic of China
Telephone: (O) 886-2-8757491 ext. 9, 886-2-8712121 ext. 3147
Fax No.: (O) 886-2-8757588
Education:
7/1981 - 6/1988 Medical Department of China Medical College, Taichung, Taiwan
Internship: Chang-Gung Memorial Hospital, Lin-Cou, Taipei, Taiwan (July
1986 - June 1988)
Postgraduate Training:
7/1988 - 6/1990 Rotating Surgical Resident
Department of Surgery, Chang-Gung Memorial Hospital, Lin-Cou,
Tao-Yuan
7/1990 -6/1993 Neurosurgical Resident
Department of Neurosurgery, Neurological Institute, Taipei Veterans
General Hospital
7/1993 -6/1994 Chief Resident in Neurosurgery
Department of Neurpsurgery, Neurological Institute, Taipei Veterans
General Hospital
7/1996 – 6/1997 Research fellow in Neurosurgical and Pharmacology Departments, Shinshu
University School of Medicine,
Matsumoto, Japan
32
33. Hospital Appointments:
Since Feb. 1995 Attending Neurosurgeon
Department of Neurosurgery, Neurological Institute, Taipei
Veterans General Hospital
Academic Appointments:
Since July 1993 Lecturer of Neurology and Neurosurgery
National Defense Medical College, Taipei, Taiwan, R.O.C.
Since July 1993 Lecturer of Surgery
National Yang-Ming Medical College, Taipei, Taiwan,R.O.C.
Present Clinical Assistant Professor of Neurosurgery
National Defense Medical College, Taipei, Taiwan, R.O.C.
Present Clinical Assistant Professor of Neurosurgery
National Yang-Ming University, School of Medicine
Membership in Academic and Professional Organization:
Member of Surgical Association, Republic of China
Member of Neurological Society, Republic of China (Taiwan)
Member of Neurosurgical Association, R.O.C. (Taiwan)
Member of Taiwan Neurospinal Society
Member of Taiwan Neurooncology Society
Member of Taiwan Skull Base Society
Member of Taiwan Endoscope Society
Member of Taiwan Stroke Society
Organization of National Academic Society
July 2001 ~ June 2003 Vice Secretary General of Taiwan Neurospinal Society
Dec 2001 ~ Nov 2003 Vice Secretary General of
Neurosurgical Association, R.O.C. (Taiwan)
March 2003 ~ Feb 2005 Secretary General of Taiwan Stroke Society
Dec 2003 ~ Nov 2005 Secretary General of Taiwan Neurooncology Society
March 2005 ~ Board of directors of Taiwan Stroke Society
Organization of International Conferences/Symposia
Secretary General of the 4th Meeting of the Asian Society for Neuro-Oncology, Taipei (Grand Hotel),
Taiwan, November 4 ~ 6, 2005
Secretary General of 34th Annual Meeting of the International Society for Pediatric Neurosurgery (ISPN),
Taipei(Grand Hotel), Taiwan, September 10 ~ 14, 2006
33
35. 16:10~16:30
Name: Cheng-Loong Liang 梁 正 隆
Office Address: Department of Neurosurgery, E-DA Hospital, #1 E-DA Road, Yan-Chau Shiang,
Kaohsiung County, 824, TAIWAN. Tel No: 886-7-6150011
Education:
(2004 APR. ~ OCT.) Fellowship, Center for Imagine-Guided Neurosurgery, Department of
Neurosurgery, University of Pittsburgh Medical Center, Pennsylvania, USA
(1998~2002) Master of Medical Sciences, Institute of Clinical Medicine, Chang Gung
University, Taiwan
(1984~1991) Doctor of Medicine, Chung Shan Medical University, Taiwan
Academic Appointment:
Lecturer, I-Shou University
Employment Record:
(2004~ ) Director, Gamma Knife Center, E-DA Hospital, I-Shou University
(2004~ ) Attending Neurosurgeon, Department of Neurosurgery, E-DA Hospital, I-Shou University
(1999~2004) Attending Neurosurgeon, Department of Neurosurgery, Chang Gung Memorial Hospital,
Kaohsiung Medical Center
(1993~1999) Resident, Department of Surgery and Neurosurgery, Chang Gung Memorial Hospital,
Kaohsiung Medical Center
Board Certification: 1998, Board of Surgery (Taiwan)
Board Certification: 1999, Board of Neurosurgery (Taiwan)
Professional Affiliations:
American Association of Neurological Surgeon (AANS) USA
Surgical Association of R.O.C. (Taiwan)
Medical Association of R.O.C. (Taiwan)
Neurological Association of R.O.C. (Taiwan)
Taiwan Neurosurgical Society
Taiwan Stroke Society
Honor and awards:
2001 Award of Professor Lee T.K., Taiwan Stroke Society
2003 Award of Professor Du S.B., Taiwan Stroke Society
35