This document discusses cerebrospinal fluid (CSF) circulation and hydrocephalus. It provides details on:
1. CSF is produced by the choroid plexus at a rate of 0.3ml/min and turns over 3 times per day as it circulates from the ventricles to the subarachnoid spaces.
2. Hydrocephalus can be congenital or acquired due to various causes and presents with symptoms like increased head size, vomiting, and visual changes in infants or headaches and gait disturbances in older children.
3. Treatment options include drug therapy to reduce CSF production, endoscopic third ventriculostomy to relieve obstruction, or ventriculoperitoneal sh
Hydrocephalous is a serious disease of the central nervous system which has both congenital and aquired subtypes. the congenital variety affects the children and is a considerable burden especially is the developing countries. I tleads to long term morbidity and high rates of mortality
General Basic knowledge of Brain tumour explained in brief of classification, pathogenesis, clinical features, CT, MRI, management, Radiotherapy. Best for MBBS and PG preparation student.
I am a Neurosurgeon with advanced training in Interventional vascular Neurosurgery(FINR) from Zurich, Switzerland, and FMINS-Fellowship in minimally invasive and Endoscopic Neurosurgery from Germany.
I am presently working in Columbia asia hospitals, Bangalore.
My areas of interest are Vascular Neurosurgery, Stroke specialist, interventional neuroradiology, Endoscopic and minimally invasive Neurosurgery, Endoscopic spine surgery.
Before embarking on an approach, the surgeon should be familiar with both the ventricular anatomy and the options for optimally Accessing lesions in third ventricle is a surgical challenge because of its difficult corridor as well as deeper location, need of neural incision, preservation of vascular, thalamus and hypothalamus and likely risk of fornix injury.
Hydrocephalous is a serious disease of the central nervous system which has both congenital and aquired subtypes. the congenital variety affects the children and is a considerable burden especially is the developing countries. I tleads to long term morbidity and high rates of mortality
General Basic knowledge of Brain tumour explained in brief of classification, pathogenesis, clinical features, CT, MRI, management, Radiotherapy. Best for MBBS and PG preparation student.
I am a Neurosurgeon with advanced training in Interventional vascular Neurosurgery(FINR) from Zurich, Switzerland, and FMINS-Fellowship in minimally invasive and Endoscopic Neurosurgery from Germany.
I am presently working in Columbia asia hospitals, Bangalore.
My areas of interest are Vascular Neurosurgery, Stroke specialist, interventional neuroradiology, Endoscopic and minimally invasive Neurosurgery, Endoscopic spine surgery.
Before embarking on an approach, the surgeon should be familiar with both the ventricular anatomy and the options for optimally Accessing lesions in third ventricle is a surgical challenge because of its difficult corridor as well as deeper location, need of neural incision, preservation of vascular, thalamus and hypothalamus and likely risk of fornix injury.
The anatomy of the ventricular system, the physiology in production of CSF, the pathogenesis, and the different paediatric and adult forms of hydrocephalus.
CDSCO and Phamacovigilance {Regulatory body in India}NEHA GUPTA
The Central Drugs Standard Control Organization (CDSCO) is India's national regulatory body for pharmaceuticals and medical devices. Operating under the Directorate General of Health Services, Ministry of Health & Family Welfare, Government of India, the CDSCO is responsible for approving new drugs, conducting clinical trials, setting standards for drugs, controlling the quality of imported drugs, and coordinating the activities of State Drug Control Organizations by providing expert advice.
Pharmacovigilance, on the other hand, is the science and activities related to the detection, assessment, understanding, and prevention of adverse effects or any other drug-related problems. The primary aim of pharmacovigilance is to ensure the safety and efficacy of medicines, thereby protecting public health.
In India, pharmacovigilance activities are monitored by the Pharmacovigilance Programme of India (PvPI), which works closely with CDSCO to collect, analyze, and act upon data regarding adverse drug reactions (ADRs). Together, they play a critical role in ensuring that the benefits of drugs outweigh their risks, maintaining high standards of patient safety, and promoting the rational use of medicines.
These simplified slides by Dr. Sidra Arshad present an overview of the non-respiratory functions of the respiratory tract.
Learning objectives:
1. Enlist the non-respiratory functions of the respiratory tract
2. Briefly explain how these functions are carried out
3. Discuss the significance of dead space
4. Differentiate between minute ventilation and alveolar ventilation
5. Describe the cough and sneeze reflexes
Study Resources:
1. Chapter 39, Guyton and Hall Textbook of Medical Physiology, 14th edition
2. Chapter 34, Ganong’s Review of Medical Physiology, 26th edition
3. Chapter 17, Human Physiology by Lauralee Sherwood, 9th edition
4. Non-respiratory functions of the lungs https://academic.oup.com/bjaed/article/13/3/98/278874
Local Advanced Lung Cancer: Artificial Intelligence, Synergetics, Complex Sys...Oleg Kshivets
Overall life span (LS) was 1671.7±1721.6 days and cumulative 5YS reached 62.4%, 10 years – 50.4%, 20 years – 44.6%. 94 LCP lived more than 5 years without cancer (LS=2958.6±1723.6 days), 22 – more than 10 years (LS=5571±1841.8 days). 67 LCP died because of LC (LS=471.9±344 days). AT significantly improved 5YS (68% vs. 53.7%) (P=0.028 by log-rank test). Cox modeling displayed that 5YS of LCP significantly depended on: N0-N12, T3-4, blood cell circuit, cell ratio factors (ratio between cancer cells-CC and blood cells subpopulations), LC cell dynamics, recalcification time, heparin tolerance, prothrombin index, protein, AT, procedure type (P=0.000-0.031). Neural networks, genetic algorithm selection and bootstrap simulation revealed relationships between 5YS and N0-12 (rank=1), thrombocytes/CC (rank=2), segmented neutrophils/CC (3), eosinophils/CC (4), erythrocytes/CC (5), healthy cells/CC (6), lymphocytes/CC (7), stick neutrophils/CC (8), leucocytes/CC (9), monocytes/CC (10). Correct prediction of 5YS was 100% by neural networks computing (error=0.000; area under ROC curve=1.0).
Tom Selleck Health: A Comprehensive Look at the Iconic Actor’s Wellness Journeygreendigital
Tom Selleck, an enduring figure in Hollywood. has captivated audiences for decades with his rugged charm, iconic moustache. and memorable roles in television and film. From his breakout role as Thomas Magnum in Magnum P.I. to his current portrayal of Frank Reagan in Blue Bloods. Selleck's career has spanned over 50 years. But beyond his professional achievements. fans have often been curious about Tom Selleck Health. especially as he has aged in the public eye.
Follow us on: Pinterest
Introduction
Many have been interested in Tom Selleck health. not only because of his enduring presence on screen but also because of the challenges. and lifestyle choices he has faced and made over the years. This article delves into the various aspects of Tom Selleck health. exploring his fitness regimen, diet, mental health. and the challenges he has encountered as he ages. We'll look at how he maintains his well-being. the health issues he has faced, and his approach to ageing .
Early Life and Career
Childhood and Athletic Beginnings
Tom Selleck was born on January 29, 1945, in Detroit, Michigan, and grew up in Sherman Oaks, California. From an early age, he was involved in sports, particularly basketball. which played a significant role in his physical development. His athletic pursuits continued into college. where he attended the University of Southern California (USC) on a basketball scholarship. This early involvement in sports laid a strong foundation for his physical health and disciplined lifestyle.
Transition to Acting
Selleck's transition from an athlete to an actor came with its physical demands. His first significant role in "Magnum P.I." required him to perform various stunts and maintain a fit appearance. This role, which he played from 1980 to 1988. necessitated a rigorous fitness routine to meet the show's demands. setting the stage for his long-term commitment to health and wellness.
Fitness Regimen
Workout Routine
Tom Selleck health and fitness regimen has evolved. adapting to his changing roles and age. During his "Magnum, P.I." days. Selleck's workouts were intense and focused on building and maintaining muscle mass. His routine included weightlifting, cardiovascular exercises. and specific training for the stunts he performed on the show.
Selleck adjusted his fitness routine as he aged to suit his body's needs. Today, his workouts focus on maintaining flexibility, strength, and cardiovascular health. He incorporates low-impact exercises such as swimming, walking, and light weightlifting. This balanced approach helps him stay fit without putting undue strain on his joints and muscles.
Importance of Flexibility and Mobility
In recent years, Selleck has emphasized the importance of flexibility and mobility in his fitness regimen. Understanding the natural decline in muscle mass and joint flexibility with age. he includes stretching and yoga in his routine. These practices help prevent injuries, improve posture, and maintain mobilit
micro teaching on communication m.sc nursing.pdfAnurag Sharma
Microteaching is a unique model of practice teaching. It is a viable instrument for the. desired change in the teaching behavior or the behavior potential which, in specified types of real. classroom situations, tends to facilitate the achievement of specified types of objectives.
Knee anatomy and clinical tests 2024.pdfvimalpl1234
This includes all relevant anatomy and clinical tests compiled from standard textbooks, Campbell,netter etc..It is comprehensive and best suited for orthopaedicians and orthopaedic residents.
- Video recording of this lecture in English language: https://youtu.be/lK81BzxMqdo
- Video recording of this lecture in Arabic language: https://youtu.be/Ve4P0COk9OI
- Link to download the book free: https://nephrotube.blogspot.com/p/nephrotube-nephrology-books.html
- Link to NephroTube website: www.NephroTube.com
- Link to NephroTube social media accounts: https://nephrotube.blogspot.com/p/join-nephrotube-on-social-media.html
Flu Vaccine Alert in Bangalore Karnatakaaddon Scans
As flu season approaches, health officials in Bangalore, Karnataka, are urging residents to get their flu vaccinations. The seasonal flu, while common, can lead to severe health complications, particularly for vulnerable populations such as young children, the elderly, and those with underlying health conditions.
Dr. Vidisha Kumari, a leading epidemiologist in Bangalore, emphasizes the importance of getting vaccinated. "The flu vaccine is our best defense against the influenza virus. It not only protects individuals but also helps prevent the spread of the virus in our communities," he says.
This year, the flu season is expected to coincide with a potential increase in other respiratory illnesses. The Karnataka Health Department has launched an awareness campaign highlighting the significance of flu vaccinations. They have set up multiple vaccination centers across Bangalore, making it convenient for residents to receive their shots.
To encourage widespread vaccination, the government is also collaborating with local schools, workplaces, and community centers to facilitate vaccination drives. Special attention is being given to ensuring that the vaccine is accessible to all, including marginalized communities who may have limited access to healthcare.
Residents are reminded that the flu vaccine is safe and effective. Common side effects are mild and may include soreness at the injection site, mild fever, or muscle aches. These side effects are generally short-lived and far less severe than the flu itself.
Healthcare providers are also stressing the importance of continuing COVID-19 precautions. Wearing masks, practicing good hand hygiene, and maintaining social distancing are still crucial, especially in crowded places.
Protect yourself and your loved ones by getting vaccinated. Together, we can help keep Bangalore healthy and safe this flu season. For more information on vaccination centers and schedules, residents can visit the Karnataka Health Department’s official website or follow their social media pages.
Stay informed, stay safe, and get your flu shot today!
These lecture slides, by Dr Sidra Arshad, offer a quick overview of the physiological basis of a normal electrocardiogram.
Learning objectives:
1. Define an electrocardiogram (ECG) and electrocardiography
2. Describe how dipoles generated by the heart produce the waveforms of the ECG
3. Describe the components of a normal electrocardiogram of a typical bipolar lead (limb II)
4. Differentiate between intervals and segments
5. Enlist some common indications for obtaining an ECG
6. Describe the flow of current around the heart during the cardiac cycle
7. Discuss the placement and polarity of the leads of electrocardiograph
8. Describe the normal electrocardiograms recorded from the limb leads and explain the physiological basis of the different records that are obtained
9. Define mean electrical vector (axis) of the heart and give the normal range
10. Define the mean QRS vector
11. Describe the axes of leads (hexagonal reference system)
12. Comprehend the vectorial analysis of the normal ECG
13. Determine the mean electrical axis of the ventricular QRS and appreciate the mean axis deviation
14. Explain the concepts of current of injury, J point, and their significance
Study Resources:
1. Chapter 11, Guyton and Hall Textbook of Medical Physiology, 14th edition
2. Chapter 9, Human Physiology - From Cells to Systems, Lauralee Sherwood, 9th edition
3. Chapter 29, Ganong’s Review of Medical Physiology, 26th edition
4. Electrocardiogram, StatPearls - https://www.ncbi.nlm.nih.gov/books/NBK549803/
5. ECG in Medical Practice by ABM Abdullah, 4th edition
6. Chapter 3, Cardiology Explained, https://www.ncbi.nlm.nih.gov/books/NBK2214/
7. ECG Basics, http://www.nataliescasebook.com/tag/e-c-g-basics
3. Anatomy and Physiology CSF
• Absorbtion:
- Primarily by the Arachnoid villi
• Rate of production
- 0.3ml/min or approx 450ml/24 hrs
• Turnover: 3 times/day
4. CSF CIRCULATION
• Lateral ventricles – Foramen of Monro
• 3rd Ventricle – Cerebral Acqueduct
• 4th Ventricle – F. of Magendie & Luschka
• Perimedullary and Perispinal subarachnoid spaces –
upward to the basal cistern
• Superior and lateral surfaces of the cerebral hemispheres
8. Pathological
• Acquired
3. Secondary to mass effect
- Non neoplastic
- Neoplastic
- Choroid plexus papilloma
- Post operative
- Neurosarcoidosis
- Assoc with spinal tumours
- Constitutional ventriculomegaly
9. Special Types
HYYDROCEPHALUS EX VACUO
• enlargement of the ventricles due to loss of
cerebral tissue (cerebral atrophy)
• usually as a function of normal ageing
• Accelerated by Alzheimer's
disease, Creutzfeldt-Jakob,
Alcoholism
10. Special Types
EXTERNAL HYDROCEPHALUS
• enlarged subarachnoid spaces over the frontal poles in the
first year
of life
• ventricles are normal or minimally enlarged
• may be distinguished from subdural hematoma by the "cortical
vein sign"
• usually resolves spontaneously by 2 years of age
• Etiology :
• Unclear
• Defect in CSF resorption is postulated
• External hydrocephalus (EH) may be a variant of
communicating hydrocephalus
11. Special Types
ARRESTED HYDROCEPHALUS
• Compensated hydrocephalus
interchangeably
• There is no progression or
deleterious sequelae requiring CSF
shunting
• Criteriae in the absence of a CSF shunt:
- Near normal ventricular size
- Normal head growth curve
- Continued psychomotor development
13. Special Types
HYDRANENCEPHAL Y
• A post-neurulation defect
• Total or near-total absence ofthe cerebrum
• Intact cranial vault and meninges
• Intracranial cavity being filled with CSF
• There is usually progressive macrocrania
• Most commonly cited cause : B/L ICA infarcts
• Infection
- Congenital or neonatal herpes
- Toxoplasmosis
- Equine virus
14. Special Types
ENTRAPPED FOURTH VENTRICLE
• AKA isolated fourth ventricle,
• 3rd Ventricle X 4th ventricle X
Foramina of Luschka or
Magendie
- Post-infectious hydrocephalus( fungal)
- Repeated shunt infections
• Choroid plexus of the 4th ventricle :
produces CSF which enlarges the ventricle
15. Special
Types
NPH
• Classic triad:
- Dementia
- Gait disturbance
- Urinary incontinence
• Communicating hydrocephalus on CT or
MRI
• Normal pressure on random LP
• Symptoms remediable with CSF
shunting
16. NPH
• Etiology
- Post SAH
- Post-traumatic
- Post-meningitic
- Following posterior fossa surgery
- Tumors including carcinomatous
meningitis
- Also seen in -15% of patients with
Alzheimer's disease
- Deficiency of the arachnoid granulations
- Aqueductal stenosis
18. INFANCY
• Head grows at alarming rate with hydrocephalus.
– First sign: Bulging pulsatile fontanelles
– Tense, non-pulsatile anterior fontanelle
– Dilated scalp veins
– Thin skull bones with separated sutures
• Cracked pot sounds on percussion : Mc Ewans sign
19. INFANCY
• Depressed eyes or SUN SET sign
– Eyes downward with sclera visible
above
• Pupils sluggish with unequal response to
light
• Irritability, lethargy, feeds poorly,
• Changes in Level of Consciousness
• Arching of back (Opisthotonus)
• Lower extremity spasticity
21. INFANCY
• Emesis, Somnolence, Seizures, and Cardio Pulmonary
Distress
• Severely affected infants may not survive neonatal period
22. CHILDHOOD
• Headache on awakening, improvement following emesis or sitting
• Papilledema, strabismus, and Extrapyramidal signs, ataxia
• Irritability, Lethargy, Apathy, Confusion, and often incoherent
25. Clinical
• Occipito Frontal Circumference
- OFC of a normal infant = Distance from
Crown to Rump
• Indicators:
- Crossing curves
- Head growth > 1.25cm/wk
- OFC approaching 2 SD above normal
- Out of proportion with body length or
weight, even if normal for age
29. CT/ MRI Findings Acute
Hydrocephalus
• Preferential AP dilatation of the Temporal Horns
> 2mm
• Ballooning of the Frontal Horns and 3rd
Ventricles (Mickey Mouse sign)
• Periventricular interstitial edema
• Flattening of the Inter-hemispheric and
Sylvian fissures
• Upward bowing of corpus callosum on
sagittal MRI
• 4th Ventricle normal in size
30. CT/ MRI Findings Chronic
Hydrocephalus
• Temporal horns may be less prominent
• 3rd ventricle may herniate into Sella
Turcica
• Erosion of Sella
• Corpus callosum atrophy
• Irreversible white matter demyelination
31. Isotope Cisternography
• Radioisotope injected into Lumbar
Sub- arachnoid space
• Absorbtion of CSF monitored periodically
over 96 hrs
• Positive cisternogram does not
predict response to shunt surgery
34. Drug Therapy
• The choroid plexus shares many ion pumps and
enzyme
systems with renal tubular epithelium
– Acetazolamide:
Start @ 25mg/kg/day PO TID
Increase @ 25mg/kg/day to 100mg/kg/day
Simultaneously start Frusemide @1mg/kg/day
36. Drug Therapy
• Watch for electrolyte imbalance and
acetazolamide side effects:
- tachypnea
- paresthesias
- Lethargy
- diarrhea
• Perform weekly CT scan and insert ventricular
shunt if progressive ventriculomegaly occurs.
• Otherwise, maintain therapy for a 6 month trial,
then taper dosage over 2-4 weeks
37. Spinal Taps
• HCP after IVH may be transient
• Serial taps (ventricular or LP) may temporize
until resorption resumes
• LPs only for Communicating HCP
• No reabsorption when the protein content of
the CSF is < 100 mg/dl
Spontaneous resorption unlikely
SHUNTING
39. Choroid Plexectomy
• Described by Dandy in 1918 for
communicating hydrocephalus
• May reduce the rate but does not totally halt
CSF production
• Open surgery associated with a high mortality
rate
• Now a Days Can Be done Endoscopically
40. 3rd Ventriculostomy
• Resurgence of interest in third ventriculostomy
(TV) with the recent increased use of
ventriculoscopic surgery
• Indications:
- Obstructive HCP.
- Mgt of shunt infection
- Subdural hematomas after shunting
- Slit ventricle syndrome
41. 3rd Ventriculostomy
• Contraindications:
- Communicating Hydrocepalus
- Tumor
- Previous shunt
- Previous SAH
- Previous whole brain radiation
- Significant adhesions visible when
perforating through the floor of the 3rd
ventricle at the time of performance of TV
43. Endoscopic third ventriculostomy
Endoscopic third ventriculostomy (ETV) is
considered as a treatment of choice for obstructive
hydrocephalus. It is indicated in hydrocephalus
secondary to congenital aqueductal stenosis,
posterior third ventricle tumor, cerebellar infarct,
Dandy-Walker malformation
44. History
The first ETV was performed by William Mixter, an
urologist, in 1923. He used a urethroscope to
perform the third ventriculostomy in a child with
obstructive hydrocephalus. Tracy J. Putnam made
the necessary modifications in this urethroscope
for cauterization of the choroid plexus
45. Proper Pre-operative imaging for detailed
assessment of the posterior communicating
arteries distance from mid line, presence or
absence of Liliequist membrane or other
membranes, located in the prepontine cistern is
useful
Liliequist membrane is an arachnoid
membrane separating the chiasmatic
cistern, interpeduncular cistern and prepontine
cistern. It arises anteriorly from the diaphragma
sellae and extends posteriorly separating into two
sheet
50. Historical Aspect
Wernicke Introduced ventricular puncture and
continuous external CSF drainage in 1881; this
technique was furthered by Keen in 1891.
Quincke in 1891 first described LP as a diagnostic
and therapeutic modality for HCP.
In 1893 , Mikulicz attempted permanent
ventriculosubarachnoid-ventriculosubgaleal CSF
diversion using GOLD tubes and catgut strands.
51. In 1939, Torkilsden used a valveless catheter to
connect and permit bypass drainage from the
occipital horn to cisterna magna
( Ventriculocisternostomy)
52. Types of Shunt
Shunt Types By Category
a. VP Shunt
» Most commonly used shunt in modern era
» Lateral ventricle is the usual proximal location
» Intraperitoneal pressure
b. Ventriculo-atrial shunt (Vascular shunt)
» Through jugular veins to sup. Vena cava
» Treatment of choice in abdominal abnormalities
53. c. Torkildsen shunt:
»Shunting ventricle to cisternal space
»Rarely used
»Effective only in acquired obstructive
hydrocephalus
d. Miscellaneous:
»Pleural space
»Gall bladder
»Ureter/Urinary Bladder
54. e. Lumbo-peritoneal shunt:
» Onlyfor communicating hydrocephalous
f. Cyst/Subdural-Peritoneal shunt:
»Draining arachnoid cyst/subdural
hygroma cavity
56. VP SHUNT
• Shunt systems include three
components:
– Ventricular catheter
– One way valve
– Distal catheter
• The ventricular catheter
– Straight piece of tube
– Closed on the proximal end
– With multiple holes upto 2cm for the entry of
CSF
57. Most of the tubes are impregnated with barium or
tantalum to permit radiographic identification
58. Valve choice
Shunt valve are classified in 3 broad cat:
1.Fixed Differential Pressure Valve
2.Flow regulating Valve
3.Programmable Valve
59. 1.Fixed Differential Pressure Valve
It was 1st to be developed and used for CSF
Shunts.
These valves close to prevent flow of CSF when
the difference in pressure across the valve (i.e
Driving pressure ) drops below a fixed threshold
(I.e. Closing pressure of the valve)
Available in Low, Med, High Pressure settings.
60. Valve Mechanism
Operate by one of four general mechanism.
1)Ball-in-cone and spring 2) Diaphagram
3)Slit
4)Miter
61.
62. Problems Fixed Differential Pressure
Valve
One of the problem that quickly became apparent
with Fixed Differential Pressure Valve was that of
Over drainage , which occour by and large
secondary to “Siphoning”
Q. What is Siphoning?
A tube running from liquid in a vessel to a lower
level outside the vessel , such that liquid flow
through the tube to the lower level.
63. Problems related to overdrainage
1.Low Pressure symptoms ( e.g, headache,
nausea, emesis, diplopia)
2.Tearing of briging vein ( subdural hematoma)
3.Premature closure of cranial sutures
(Craniosynostosis)
4.Slit Venticle syndrome
65. Q. How do they Work?
These device lie in direct contact with the overlying
scalp , and their flow-pressure characteristics are
dependent on the pressure gradient between the
internal lumen of the shunt and the surrounding
atmosphere. This pressure diff is transmitted
through skin and ASD membrane . If and when the
Internal shunt prs fall below the atm prs (e.g
negative pressure created by postural change to
an upright position) , The ASD membrane is drawn
inward a, which increases the resistance and thus
decrease flow through the shunt system.
66.
67. Programmable differential pressure valve
Working mechanism same as ball in cone and
spring mechanism.
Externally adjustable pressure setting using
magnet.
Drawbacks:
1. Costly
2. MRI or other external magnetic field and disturb
the shunt.
68.
69.
70. Q. Which Valve system to choose ?
A study found out no significant difference in the
rate of ventricular reduction , final ventricular size
or overall shunt failure rate among the three valve
designs.
In the absence of a clear universally superior valve
design, the choice of valve should be adapted to
the individual clinical scenario and guided by the
surgeon’s sound clinical judgment.
71. Shunt Surgery
General principle:
-Aseptic technique
-Meticulous Handling of tissue
-All Non antibiotic impregnated catheters shoud be
soaked in bacitracin solution immedaitely on
opening , because these carry a static electrical
charge and may otherwise attract airborne dust
particle carrying microorganism.
72. General principle contd..
-No-Touch Technique is advocated ( avoid
touching catheter by gloved hand, used instrument
as far as possible)
-Prior to wound closure , a mixture of 1 ml(10/mL )
of Vancomycin and 2mL (2mg/Ml) of Gentamycin
both preservative free, is injected into the shunt
resorvior .
-The wound to be close using antibiotic
impregnated sutures.
73. Ventricular access
Frontal Approach : Kocher’s point
Occipito-parietal approach
A. Infants- Parietal Boss
B. Children And Adults- Fraziers & Keen
78. VA Shunt
• The VA shunt
– Must be accurately
located
– Requires frequent
revisions
– Distal end position to be
maintained
– Infection may be more
serious
79.
80. How to check for correct tip
placement? In Right Atria
Chest X ray Tip At D6 Vertebral level
Ultrasound
ECG: Biphasic T wave
81. VPL SHUNT
• If both the VPS & VAS do not function to absorb CSF the shunt
have to placed in the pleural space
83. POST-OP CARE
• Observe for signs of Increased ICP
– Assessment pupil size
Abdominal distention
• due to CSF peritonitis or post-op ileus due to catheter
placement.
85. • VP Shunt
- Inguinal hernia
- Hydrocele
- Peritonitis
- Intestinal Obstruction
- Volvulus
- Migration of tip to scrotum/ bowel/ stomach
- Malposition of tip
- Over-shunting
- Needs frequent length adjustment
86. VA shunt:
– Requires repeated lengthening:
– High risk of infection/septicaemia:
– Risk of retrograde flow of blood: in case of valve
malfunction (rare)
– Shunt embolus
– Vascular complications: perforation,
thrombophlebitis, pulmonary micro-emboli
87. LP Shunt:
– Laminectomy incurs 15% chance of scoliosis
– Progressive cerebellar tonsillar herniation (up to 70%)
– Slit ventricle syndrome
– Overshunting is harder to control
– Difficult proximal end revision (if required:
– Lumber radiculopathy
– CSF leak
– Difficult pressure regulation
– Bilateral 6th, 7th, nerve dysfunction due to overshunting
– High incidence of arachnoiditis & adhesions