This document summarizes a study on treating muscle tension dysphonia. The study examined 11 patients with muscle tension dysphonia over one year. Both primary and secondary muscle tension dysphonia cases were included. All patients received voice therapy. Outcomes were measured before and after therapy using auditory-perceptual ratings, quality of life measures, and visual-perceptual laryngeal evaluations. Results found voice therapy to be very effective for improving muscle tension dysphonia based on improved scores on all outcome measures after therapy. The document concludes voice therapy should be the primary treatment for both primary and secondary muscle tension dysphonia cases.
Voice therapy to treat voice disorders, basics , different techniques, methods advantages and disadvantages, where and what method to choose? otorhinolaryngology ent
Pure tone audiometry is used to measure hearing thresholds using an audiometer. It generates pure tones of varying frequencies and intensities that are delivered to the patient's ears through headphones or bone conduction to determine the softest level they can hear at different frequencies. The results are plotted on an audiogram to identify the type and degree of any hearing loss. It is an important subjective test that provides frequency-specific information but relies on the patient's responses.
This document provides information on rehabilitation of deafness, including definitions, classifications, causes, assessment, and treatment of hearing loss. It discusses the WHO definition of hearing impairment and deafness. Clinical classifications are based on decibel levels, while educational and sociological classifications depend on ability to benefit from education or employment. Causes of hearing loss include congenital, acquired, conductive, sensorineural, and mixed. Assessment involves history, examination, audiometric tests like pure tone audiometry and speech audiometry. Treatment methods include hearing aids, speech therapy, education, and surgery for conductive losses.
Spasmodic dysphonia is a rare neurological disorder that causes involuntary muscle contractions in the larynx. It affects speech by disrupting phonation and causes symptoms like a strained, breathy, or whispery voice. The condition is classified as adductor or abductor spasmodic dysphonia depending on the affected muscles. While the exact cause is unclear, risk factors include genetics and environmental triggers. Treatment involves botulinum toxin injections into the larynx muscles or voice therapy, with the goal of reducing muscle spasms and improving speech.
Stroboscopy is a technique used to visualize vocal fold vibration during phonation using synchronized flashing light. It allows observation of vibration in slow motion, providing real-time information about vibration and detection of vocal pathology. The flashing light is synchronized to the frequency of vocal fold vibration, producing a clear still image of the same portion of the vibratory cycle using the principles of persistence of vision and correspondence. Stroboscopy is essential for planning surgery and improving subtle laryngeal diagnoses. Key diagnostic findings include asymmetry of vibration with lesions like polyps and compromised glottic closure with nodules.
This document provides an overview of cochlear implants, including:
- A cochlear implant is an electronic device that converts sound into electrical signals to stimulate the auditory nerve for people who are profoundly deaf.
- It has both external and internal components, with the external parts worn behind the ear and the internal parts surgically implanted.
- Candidates for cochlear implants include adults and children over 12 months old with severe-to-profound hearing loss who get limited benefit from hearing aids.
- The surgical procedure to implant the device involves making an incision to access the inner ear and inserting an electrode array to stimulate the auditory nerve. Extensive testing and rehabilitation is required post
The document discusses evaluation of voice disorders. It begins by outlining the functions of the larynx, including protection of the tracheobronchial tree, respiration, phonation, increasing intrathoracic pressure, swallowing, and coughing. It then explains why voice is important as it conveys subtle messages about a person. The document proceeds to describe how phonation occurs, including the vibratory cycle of the vocal folds and the cover/body theory. It concludes by outlining various components of a comprehensive voice evaluation, including patient scales, perceptual evaluation using auditory, visual and tactile assessments, and objective measures of elements like pitch, loudness and quality.
BRAINSTEM EVOKED RESPONSE AUDIOMETRY (BERA), AUDIOTORY BRAINSTEM RESPONSE (ABR)Girish S
Neurologic objective, noninvasive test of auditory brainstem function in response to auditory (click) stimuli. It’s a set of seven positive waves recorded during the first 10 milli seconds after a click stimuli. They are labeled as I - VII. Also called Jewet bumps.
Voice therapy to treat voice disorders, basics , different techniques, methods advantages and disadvantages, where and what method to choose? otorhinolaryngology ent
Pure tone audiometry is used to measure hearing thresholds using an audiometer. It generates pure tones of varying frequencies and intensities that are delivered to the patient's ears through headphones or bone conduction to determine the softest level they can hear at different frequencies. The results are plotted on an audiogram to identify the type and degree of any hearing loss. It is an important subjective test that provides frequency-specific information but relies on the patient's responses.
This document provides information on rehabilitation of deafness, including definitions, classifications, causes, assessment, and treatment of hearing loss. It discusses the WHO definition of hearing impairment and deafness. Clinical classifications are based on decibel levels, while educational and sociological classifications depend on ability to benefit from education or employment. Causes of hearing loss include congenital, acquired, conductive, sensorineural, and mixed. Assessment involves history, examination, audiometric tests like pure tone audiometry and speech audiometry. Treatment methods include hearing aids, speech therapy, education, and surgery for conductive losses.
Spasmodic dysphonia is a rare neurological disorder that causes involuntary muscle contractions in the larynx. It affects speech by disrupting phonation and causes symptoms like a strained, breathy, or whispery voice. The condition is classified as adductor or abductor spasmodic dysphonia depending on the affected muscles. While the exact cause is unclear, risk factors include genetics and environmental triggers. Treatment involves botulinum toxin injections into the larynx muscles or voice therapy, with the goal of reducing muscle spasms and improving speech.
Stroboscopy is a technique used to visualize vocal fold vibration during phonation using synchronized flashing light. It allows observation of vibration in slow motion, providing real-time information about vibration and detection of vocal pathology. The flashing light is synchronized to the frequency of vocal fold vibration, producing a clear still image of the same portion of the vibratory cycle using the principles of persistence of vision and correspondence. Stroboscopy is essential for planning surgery and improving subtle laryngeal diagnoses. Key diagnostic findings include asymmetry of vibration with lesions like polyps and compromised glottic closure with nodules.
This document provides an overview of cochlear implants, including:
- A cochlear implant is an electronic device that converts sound into electrical signals to stimulate the auditory nerve for people who are profoundly deaf.
- It has both external and internal components, with the external parts worn behind the ear and the internal parts surgically implanted.
- Candidates for cochlear implants include adults and children over 12 months old with severe-to-profound hearing loss who get limited benefit from hearing aids.
- The surgical procedure to implant the device involves making an incision to access the inner ear and inserting an electrode array to stimulate the auditory nerve. Extensive testing and rehabilitation is required post
The document discusses evaluation of voice disorders. It begins by outlining the functions of the larynx, including protection of the tracheobronchial tree, respiration, phonation, increasing intrathoracic pressure, swallowing, and coughing. It then explains why voice is important as it conveys subtle messages about a person. The document proceeds to describe how phonation occurs, including the vibratory cycle of the vocal folds and the cover/body theory. It concludes by outlining various components of a comprehensive voice evaluation, including patient scales, perceptual evaluation using auditory, visual and tactile assessments, and objective measures of elements like pitch, loudness and quality.
BRAINSTEM EVOKED RESPONSE AUDIOMETRY (BERA), AUDIOTORY BRAINSTEM RESPONSE (ABR)Girish S
Neurologic objective, noninvasive test of auditory brainstem function in response to auditory (click) stimuli. It’s a set of seven positive waves recorded during the first 10 milli seconds after a click stimuli. They are labeled as I - VII. Also called Jewet bumps.
Auditory neuropathy spectrum disorder (ANSD) is characterized by normal outer hair cell function but abnormal or absent auditory brainstem response, despite mild to profound hearing loss. A 27-year-old female presented with right-sided hearing loss, vertigo, and tinnitus for several years. Testing found normal outer hair cell function but abnormal auditory brainstem responses, consistent with progressive ANSD. Treatment options for ANSD are limited but may include hearing aids, cochlear implants, or speech therapy depending on the severity and progression of the hearing loss.
Immittance audiometry uses measurements of acoustic impedance and admittance to assess middle ear function. It is a non-invasive and non-behavioral test. Key measures include tympanometry to evaluate the mobility of the eardrum and ossicular chain, and acoustic reflex thresholds to assess the function of the middle ear muscles and brainstem pathways. Abnormal immittance test results can help diagnose conditions like middle ear fluid, ossicular discontinuity, or retrocochlear lesions.
Obstructive sleep apnea (OSA) is a common breathing disorder in children characterized by pauses in breathing during sleep. The document summarizes epidemiology, pathophysiology, clinical features, diagnostic tests, and treatment options for paediatric OSA. The largest risk group is children with adenotonsillar hypertrophy. Polysomnography is the gold standard diagnostic test. Treatment includes weight loss, nasal steroids, adenotonsillectomy, CPAP, and jaw surgery. Complications of adenotonsillectomy include bleeding and respiratory issues in high risk children. Residual OSA occurs in some children following surgery.
Venting in earmolds serves several purposes: 1) To allow low-frequency signals to escape or enter the ear canal, 2) To decrease occlusion effects and pressure buildup, and 3) To allow for ear canal aeration. The size and shape of the vent impacts its acoustic properties - smaller vents have greater venting effects while larger vents decrease venting. Proper vent selection is important for hearing aid function and feedback as venting interacts with features like gain, noise reduction, and microphone directivity. Parallel vents are preferred over diagonal vents which can increase feedback.
The document discusses middle ear implants as a type of hearing aid for patients with mild to severe hearing loss. It describes two main types of transducers used in middle ear implants - electromagnetic and piezoelectric. Several implant devices are discussed, including the Vibrant Soundbridge, Middle Ear Transducer (MET), Carina, and Esteem. Clinical trial results for some devices show significant improvement in functional gain and patient satisfaction compared to conventional hearing aids.
This document summarizes various tests used to evaluate hearing. It discusses tests of hearing thresholds like pure tone audiometry to determine the type and degree of hearing loss. Other tests discussed include tympanometry to assess middle ear function, otoacoustic emissions to evaluate cochlear outer hair cell function, and electrocochleography and BERA to objectively measure electrical responses in the cochlea and auditory nerve. The document provides details on the principles, procedures, and interpretations of these common audiological tests used to evaluate hearing.
The document discusses auditory long latency evoked potentials (ALLR), specifically the P1-N1-P2 complex, including the generators and neural sources of the components, factors that affect the recording and morphology of the response such as stimulus characteristics and subject factors like age and maturation, and the clinical utility of ALLR in evaluating hearing function. The P1-N1-P2 complex is generated across multiple auditory areas including primary and secondary auditory cortices and is modulated by both physical stimulus properties and cognitive/attentional factors, while maturation and aging impact the morphology and latency of the response.
Pure tone audiometry uses pure tones of single frequencies to test a patient's hearing thresholds through air and bone conduction testing. Air conduction testing evaluates the function of the outer, middle and inner ear by presenting tones from 250Hz to 8kHz through headphones. Bone conduction testing from 250Hz to 4kHz assesses inner ear function by presenting tones to the mastoid bone. The lowest intensity level at which the patient hears 50% of the tones is considered their threshold, which is plotted on a graph with frequency on the x-axis and decibels on the y-axis to evaluate the type, degree and configuration of any hearing loss.
ECochG is a variant of brainstem audio evoked response (ABR) where the recording electrode is placed as close as practical to the cochlea. We will use the abbreviation ECOG and ECochG interchangeably below. ECOG is preferable to us as it is shorter.
ECOG is intended to diagnose Meniere's disease, and particular, hydrops (swelling of the inner ear). ECOG may also be abnormal in perilymph fistula, and in superior canal dehiscence. The common feature connecting these illnesses is an imbalance in pressure between the endolymphatic and perilymphatic compartment of the inner ear.
ECOG can also be used to show that the cochlea is normal, in persons who are deaf. The cochlear microphonic of ECOG may be normal in auditory neuropathy (Santarelli and Arslan 2002) as well as other disorders in which the cochlea is preserved but the auditory nerve is damaged (Yokoyama, Nishida et al. 1999).
Finally, ECOG's have also been used to as a indicator of the temporary threshold shift that may follow noise injury (Nam et al, 2004).
Tinnitus retraining therapy (TRT) is a treatment for tinnitus that involves counseling and sound therapy to retrain connections between the auditory, limbic, and autonomic nervous systems. It categorizes patients based on factors like hearing loss and sound sensitivity and prescribes different sound therapy devices at appropriate levels. Counseling teaches patients about tinnitus mechanisms and helps reduce reactions. Studies show TRT improves tinnitus handicap in 78-96% of patients after 8-18 months of treatment.
Spaces of middle ear and their surgical importanceDr Soumya Singh
one of the imp topics in ENT that should be understood very thoroughly if u want to pursue as an otologist.I tried to simplify the topic with simple diagrams and models for better understanding .
This document provides guidance on performing speech audiometry tests, including speech reception threshold (SRT), word recognition score (WRS), and speech-in-noise tests. It discusses procedures for determining SRT and WRS, considerations for non-native English speakers and those with hearing loss, and the clinical significance of test results including how they can indicate site of lesion. Masking procedures are also outlined to limit interference between ears during testing.
National programme for prevention and control of deafness - NPPCDMohammed Nishad N
This document outlines India's National Program for Prevention and Control of Deafness (NPPCD). The program was initiated in 2007 to address the large number of Indians suffering from hearing loss. Its objectives are to reduce hearing loss through early identification, treatment, and prevention programs. It aims to strengthen capacity for ear care services by training personnel and improving infrastructure. The program follows a tiered structure from central coordination down to district-level implementation. Key strategies include strengthening ear care services, developing human resources, and promoting public awareness through information and education campaigns.
Otoacoustic emissions are low-intensity sounds generated by the inner ear that can be measured in the ear canal. They are produced by the outer hair cells' electromotility in response to sound stimulation. There are two main mechanisms that produce otoacoustic emissions - nonlinear distortion, attributed to outer hair cell action, and linear reflection from impedance mismatches in the cochlea. Measuring otoacoustic emissions can reveal the integrity of outer hair cell function. The different types of otoacoustic emissions include spontaneous, transient-evoked, distortion product, and stimulus frequency emissions.
Physiology of larynx& theories of voice production(dr.ravindra daggupati)Ravindra Daggupati
The document discusses the physiology of the larynx and voice production. It covers the functions of the larynx including protection of the airways during swallowing, control of airflow and breathing, and sound generation. It describes the mechanics of phonation including the roles of the vocal folds, subglottic pressure, and the mucosal wave. Various theories of vocal fold vibration are presented, including the myoelastic aerodynamic theory and multi-mass models. The document also discusses laryngeal receptors, the neurology of speech, and vocal registers.
This document discusses voice disorders and their diagnosis and treatment. It covers the basics of normal voice production and the glottal cycle. Key aspects of stroboscopic examination are described, including amplitude of vibration, mucosal wave, symmetry, periodicity, and glottic closure patterns. Common voice disorders like tension dysphonia, laryngitis, vocal nodules, and vocal fold paralysis are mentioned. The document emphasizes taking a thorough history and examining the oral cavity, larynx, breathing, and voice quality during diagnosis of voice disorders. Stroboscopy aids in detecting subtle vocal fold abnormalities. Voice hygiene and lifestyle modifications are important aspects of treatment.
This document provides an overview of brainstem auditory evoked potentials (BAEPs). It discusses the history and development of BAEPs, the auditory pathway, stimulation and recording techniques, waveform identification, and clinical interpretation. Some key points:
- BAEPs evaluate the ear, auditory nerve, and brainstem pathways using electrodes on the scalp to record responses to click stimuli.
- Short-latency waves I-V arise from specific structures along the ascending auditory pathway from cochlear nerve to inferior colliculus.
- Stimulation is typically with clicks at 10-20 Hz through headphones, with masking of the contralateral ear. Recordings analyze responses over 10 ms.
-
OAE and BERA ( otoacoustic emissions and brainstem evoked response audiometry)Liju Rajan
Otoacoustic emissions (OAEs) are sounds produced by the inner ear that can be measured in the ear canal. There are different types of OAEs including spontaneous, stimulus frequency, transient evoked, and distortion product OAEs. OAEs are believed to be generated by outer hair cells in the cochlea and are reduced or absent when outer hair cell function is impaired. Brainstem auditory evoked response (BERA) testing objectively measures electrical activity in the auditory pathway generated in response to auditory stimuli. BERA waveforms provide information about auditory nerve and brainstem function. Abnormalities in BERA wave latencies, amplitudes, and morphology can indicate lesions
HOW TO BROACH A MUSCLE TENSION DYSPHONIA CASE
Sachender Pal Singh (PGT), Aakanksha Rathor (PGT), Smrity Rupa Borah Dutta
ABSTRACT
Muscle Tension Dysphonia (MTD) is a condition where excessive muscular tension or
muscle misuse is associated with phonation. It has multifactorial etiologies. It can be a
primary or secondary Muscle Tension Dysphonia. While it can affect anyone, sufferers
usually belong to a particular group. It has very serious impact on sufferer's personal, social
& professional life. We are presenting here, our 1 year prospective study done in the
department of Otorhinolaryngology, Silchar Medical College & Hospital from June 2012 to
July 2013. Voice therapy was given to every patient whether primary or secondary muscle
tension dysphonia & Pre therapy-versus-post therapy comparisons were made of selfratings
of Voice Handicap Index, Auditory-Perceptual Ratings, as well as, Visual -
Perceptual Evaluations of laryngeal images. Outcome of voice therapy results in such
patients were found to be very good. As the disease is multifactorial so treatment approach
should be broad based involving multidisciplinary team
This document discusses voice therapy for the management of benign voice disorders. It summarizes a study of 30 patients who underwent voice therapy with or without surgical procedures for conditions like vocal nodules, polyps, muscle tension dysphonia, sulcus vocalis, and others. Pre-therapy and post-therapy comparisons found improvements in voice quality ratings, patient quality of life measures, and laryngeal images. Voice therapy techniques discussed include vocal hygiene, exercises, massage, and various approaches. The study found voice therapy to be an effective non-surgical treatment for many benign voice disorders and helps prevent recurrence when used with surgery.
Auditory neuropathy spectrum disorder (ANSD) is characterized by normal outer hair cell function but abnormal or absent auditory brainstem response, despite mild to profound hearing loss. A 27-year-old female presented with right-sided hearing loss, vertigo, and tinnitus for several years. Testing found normal outer hair cell function but abnormal auditory brainstem responses, consistent with progressive ANSD. Treatment options for ANSD are limited but may include hearing aids, cochlear implants, or speech therapy depending on the severity and progression of the hearing loss.
Immittance audiometry uses measurements of acoustic impedance and admittance to assess middle ear function. It is a non-invasive and non-behavioral test. Key measures include tympanometry to evaluate the mobility of the eardrum and ossicular chain, and acoustic reflex thresholds to assess the function of the middle ear muscles and brainstem pathways. Abnormal immittance test results can help diagnose conditions like middle ear fluid, ossicular discontinuity, or retrocochlear lesions.
Obstructive sleep apnea (OSA) is a common breathing disorder in children characterized by pauses in breathing during sleep. The document summarizes epidemiology, pathophysiology, clinical features, diagnostic tests, and treatment options for paediatric OSA. The largest risk group is children with adenotonsillar hypertrophy. Polysomnography is the gold standard diagnostic test. Treatment includes weight loss, nasal steroids, adenotonsillectomy, CPAP, and jaw surgery. Complications of adenotonsillectomy include bleeding and respiratory issues in high risk children. Residual OSA occurs in some children following surgery.
Venting in earmolds serves several purposes: 1) To allow low-frequency signals to escape or enter the ear canal, 2) To decrease occlusion effects and pressure buildup, and 3) To allow for ear canal aeration. The size and shape of the vent impacts its acoustic properties - smaller vents have greater venting effects while larger vents decrease venting. Proper vent selection is important for hearing aid function and feedback as venting interacts with features like gain, noise reduction, and microphone directivity. Parallel vents are preferred over diagonal vents which can increase feedback.
The document discusses middle ear implants as a type of hearing aid for patients with mild to severe hearing loss. It describes two main types of transducers used in middle ear implants - electromagnetic and piezoelectric. Several implant devices are discussed, including the Vibrant Soundbridge, Middle Ear Transducer (MET), Carina, and Esteem. Clinical trial results for some devices show significant improvement in functional gain and patient satisfaction compared to conventional hearing aids.
This document summarizes various tests used to evaluate hearing. It discusses tests of hearing thresholds like pure tone audiometry to determine the type and degree of hearing loss. Other tests discussed include tympanometry to assess middle ear function, otoacoustic emissions to evaluate cochlear outer hair cell function, and electrocochleography and BERA to objectively measure electrical responses in the cochlea and auditory nerve. The document provides details on the principles, procedures, and interpretations of these common audiological tests used to evaluate hearing.
The document discusses auditory long latency evoked potentials (ALLR), specifically the P1-N1-P2 complex, including the generators and neural sources of the components, factors that affect the recording and morphology of the response such as stimulus characteristics and subject factors like age and maturation, and the clinical utility of ALLR in evaluating hearing function. The P1-N1-P2 complex is generated across multiple auditory areas including primary and secondary auditory cortices and is modulated by both physical stimulus properties and cognitive/attentional factors, while maturation and aging impact the morphology and latency of the response.
Pure tone audiometry uses pure tones of single frequencies to test a patient's hearing thresholds through air and bone conduction testing. Air conduction testing evaluates the function of the outer, middle and inner ear by presenting tones from 250Hz to 8kHz through headphones. Bone conduction testing from 250Hz to 4kHz assesses inner ear function by presenting tones to the mastoid bone. The lowest intensity level at which the patient hears 50% of the tones is considered their threshold, which is plotted on a graph with frequency on the x-axis and decibels on the y-axis to evaluate the type, degree and configuration of any hearing loss.
ECochG is a variant of brainstem audio evoked response (ABR) where the recording electrode is placed as close as practical to the cochlea. We will use the abbreviation ECOG and ECochG interchangeably below. ECOG is preferable to us as it is shorter.
ECOG is intended to diagnose Meniere's disease, and particular, hydrops (swelling of the inner ear). ECOG may also be abnormal in perilymph fistula, and in superior canal dehiscence. The common feature connecting these illnesses is an imbalance in pressure between the endolymphatic and perilymphatic compartment of the inner ear.
ECOG can also be used to show that the cochlea is normal, in persons who are deaf. The cochlear microphonic of ECOG may be normal in auditory neuropathy (Santarelli and Arslan 2002) as well as other disorders in which the cochlea is preserved but the auditory nerve is damaged (Yokoyama, Nishida et al. 1999).
Finally, ECOG's have also been used to as a indicator of the temporary threshold shift that may follow noise injury (Nam et al, 2004).
Tinnitus retraining therapy (TRT) is a treatment for tinnitus that involves counseling and sound therapy to retrain connections between the auditory, limbic, and autonomic nervous systems. It categorizes patients based on factors like hearing loss and sound sensitivity and prescribes different sound therapy devices at appropriate levels. Counseling teaches patients about tinnitus mechanisms and helps reduce reactions. Studies show TRT improves tinnitus handicap in 78-96% of patients after 8-18 months of treatment.
Spaces of middle ear and their surgical importanceDr Soumya Singh
one of the imp topics in ENT that should be understood very thoroughly if u want to pursue as an otologist.I tried to simplify the topic with simple diagrams and models for better understanding .
This document provides guidance on performing speech audiometry tests, including speech reception threshold (SRT), word recognition score (WRS), and speech-in-noise tests. It discusses procedures for determining SRT and WRS, considerations for non-native English speakers and those with hearing loss, and the clinical significance of test results including how they can indicate site of lesion. Masking procedures are also outlined to limit interference between ears during testing.
National programme for prevention and control of deafness - NPPCDMohammed Nishad N
This document outlines India's National Program for Prevention and Control of Deafness (NPPCD). The program was initiated in 2007 to address the large number of Indians suffering from hearing loss. Its objectives are to reduce hearing loss through early identification, treatment, and prevention programs. It aims to strengthen capacity for ear care services by training personnel and improving infrastructure. The program follows a tiered structure from central coordination down to district-level implementation. Key strategies include strengthening ear care services, developing human resources, and promoting public awareness through information and education campaigns.
Otoacoustic emissions are low-intensity sounds generated by the inner ear that can be measured in the ear canal. They are produced by the outer hair cells' electromotility in response to sound stimulation. There are two main mechanisms that produce otoacoustic emissions - nonlinear distortion, attributed to outer hair cell action, and linear reflection from impedance mismatches in the cochlea. Measuring otoacoustic emissions can reveal the integrity of outer hair cell function. The different types of otoacoustic emissions include spontaneous, transient-evoked, distortion product, and stimulus frequency emissions.
Physiology of larynx& theories of voice production(dr.ravindra daggupati)Ravindra Daggupati
The document discusses the physiology of the larynx and voice production. It covers the functions of the larynx including protection of the airways during swallowing, control of airflow and breathing, and sound generation. It describes the mechanics of phonation including the roles of the vocal folds, subglottic pressure, and the mucosal wave. Various theories of vocal fold vibration are presented, including the myoelastic aerodynamic theory and multi-mass models. The document also discusses laryngeal receptors, the neurology of speech, and vocal registers.
This document discusses voice disorders and their diagnosis and treatment. It covers the basics of normal voice production and the glottal cycle. Key aspects of stroboscopic examination are described, including amplitude of vibration, mucosal wave, symmetry, periodicity, and glottic closure patterns. Common voice disorders like tension dysphonia, laryngitis, vocal nodules, and vocal fold paralysis are mentioned. The document emphasizes taking a thorough history and examining the oral cavity, larynx, breathing, and voice quality during diagnosis of voice disorders. Stroboscopy aids in detecting subtle vocal fold abnormalities. Voice hygiene and lifestyle modifications are important aspects of treatment.
This document provides an overview of brainstem auditory evoked potentials (BAEPs). It discusses the history and development of BAEPs, the auditory pathway, stimulation and recording techniques, waveform identification, and clinical interpretation. Some key points:
- BAEPs evaluate the ear, auditory nerve, and brainstem pathways using electrodes on the scalp to record responses to click stimuli.
- Short-latency waves I-V arise from specific structures along the ascending auditory pathway from cochlear nerve to inferior colliculus.
- Stimulation is typically with clicks at 10-20 Hz through headphones, with masking of the contralateral ear. Recordings analyze responses over 10 ms.
-
OAE and BERA ( otoacoustic emissions and brainstem evoked response audiometry)Liju Rajan
Otoacoustic emissions (OAEs) are sounds produced by the inner ear that can be measured in the ear canal. There are different types of OAEs including spontaneous, stimulus frequency, transient evoked, and distortion product OAEs. OAEs are believed to be generated by outer hair cells in the cochlea and are reduced or absent when outer hair cell function is impaired. Brainstem auditory evoked response (BERA) testing objectively measures electrical activity in the auditory pathway generated in response to auditory stimuli. BERA waveforms provide information about auditory nerve and brainstem function. Abnormalities in BERA wave latencies, amplitudes, and morphology can indicate lesions
HOW TO BROACH A MUSCLE TENSION DYSPHONIA CASE
Sachender Pal Singh (PGT), Aakanksha Rathor (PGT), Smrity Rupa Borah Dutta
ABSTRACT
Muscle Tension Dysphonia (MTD) is a condition where excessive muscular tension or
muscle misuse is associated with phonation. It has multifactorial etiologies. It can be a
primary or secondary Muscle Tension Dysphonia. While it can affect anyone, sufferers
usually belong to a particular group. It has very serious impact on sufferer's personal, social
& professional life. We are presenting here, our 1 year prospective study done in the
department of Otorhinolaryngology, Silchar Medical College & Hospital from June 2012 to
July 2013. Voice therapy was given to every patient whether primary or secondary muscle
tension dysphonia & Pre therapy-versus-post therapy comparisons were made of selfratings
of Voice Handicap Index, Auditory-Perceptual Ratings, as well as, Visual -
Perceptual Evaluations of laryngeal images. Outcome of voice therapy results in such
patients were found to be very good. As the disease is multifactorial so treatment approach
should be broad based involving multidisciplinary team
This document discusses voice therapy for the management of benign voice disorders. It summarizes a study of 30 patients who underwent voice therapy with or without surgical procedures for conditions like vocal nodules, polyps, muscle tension dysphonia, sulcus vocalis, and others. Pre-therapy and post-therapy comparisons found improvements in voice quality ratings, patient quality of life measures, and laryngeal images. Voice therapy techniques discussed include vocal hygiene, exercises, massage, and various approaches. The study found voice therapy to be an effective non-surgical treatment for many benign voice disorders and helps prevent recurrence when used with surgery.
Voice Therapy: Management Of Benign Voice DisordersAakanksha Rathor
This document discusses voice therapy for the management of benign voice disorders. It summarizes a study of 30 patients with various benign voice disorders who underwent voice therapy with or without surgery. The patients received voice therapy including vocal hygiene education, behavioral voice therapy exercises, and laryngeal massage. Pre-therapy and post-therapy comparisons found improvements in auditory-perceptual ratings, quality of life measures, and laryngeal images. Voice therapy was found to be an effective non-surgical treatment for many benign voice disorders and helped prevent recurrence when used after surgery. Common voice therapy techniques discussed include resonant voice, chewing exercises, and accent method.
This study evaluated 58 patients with objective tinnitus caused by middle ear myoclonus (MEM). The patients tended to be young, with onset mostly under age 50. Stressful events and noise exposure were common triggers. Examinations found subtle tympanic membrane motions and test perturbations. Most patients experienced partial or full remission of tinnitus with medical therapy involving anticonvulsants and muscle relaxants. Surgery to section the middle ear tendons provided good outcomes for intractable cases. The study characterized clinical features and treatment responses to help diagnose and manage this rare form of tinnitus.
This document provides information about spasmodic dysphonia, a neurological voice disorder characterized by involuntary contractions of the laryngeal muscles during speech. It defines the main types as adductor or abductor spasmodic dysphonia. Diagnosis involves a team evaluating the patient's voice symptoms, medical history, and performing examinations like laryngoscopy and speech testing to differentiate it from other causes of voice problems. While the exact cause is unknown, it is thought to involve abnormal functioning of the basal ganglia and its effects on motor control of the larynx during speech.
The document summarizes guidelines from the American Association of Orthodontists on the role of orthodontists in screening for and managing obstructive sleep apnea. It discusses how orthodontists can screen patients for risk factors and signs of sleep apnea. It also outlines how orthodontic treatments like oral appliances and orthognathic surgery can be used to treat sleep apnea in collaboration with physicians. The document separates discussions on adult and pediatric sleep apnea, covering etiology, risk factors, symptoms, diagnosis, and treatment approaches for each.
• The purposes of the motor speech examination often vary as a function of practice site and the stage of care. Sometimes the priority is to establish the speech diagnosis and its implications for localization and neurologic diagnosis. Under other circumstances, formulating treatment recommendations takes precedence. The emphasis here is on several activities with goals that are relevant to diagnosis. These goals include description, establishing diagnostic possibilities, establishing a diagnosis, establishing implications for localization and disease diagnosis, and specifying severity.
The goal of the dysarthria assessment is to:
1. describe perceptual characteristics of the individual's speech and relevant physiologic findings;
2. describe speech subsystems affected (i.e., articulation, phonation, respiration, resonance, and prosody) and the severity of impairment for each;
3. identify other systems and processes that may be affected (e.g., swallowing, language, cognition); and
4. assess the impact of the dysarthria on speech intelligibility and naturalness, communicative efficiency and effectiveness, and participation.
Establishing diagnostic possibilities such as:
1. Is the problem neurologic?
2. If the problem is not neurologic, is it nonetheless organic or is it psychogenic?
3. If the problem is or is not neurologic, is it recently acquired or longstanding?
4. If the problem is neurologic, is it motor speech disorder or another neurologic disorder that is affecting verbal expression (e.g., aphasia, dementia. etc)?
5. If the problem is speech related, is it a dysarthria or apraxia of speech?
6. If dysarthria is present, then is it developmental or acquired? What is its type? etc...
Establishing a Diagnosis
Once all reasonable diagnostic possibilities have been recognized, a single diagnosis may emerge or at the least, the possibilities may be ordered from most to least likely. For example, concluding that speech is not normal, that it is not psychogenic in origin, and that it is a dysarthria but of undetermined type, is of diagnostic value. It implies the existence of an organic process and places the lesion within motor components of the nervous system. If it also can be concluded that the dysarthria is not flaccid, then the lesion is further localized to the central and not the peripheral nervous system, and certain neurologic diagnoses can be eliminated or considered unlikely. If the characteristics of the disorder are unambiguous and compatible with only a single diagnosis, then a single speech diagnosis can be given along with its implications for localization.
I apologize, upon reviewing the document and video you provided, I do not see enough context to accurately summarize or analyze them. Could you please provide more details about what you would like me to focus on? Summarizing without full context runs the risk of missing important details or perspectives.
This document discusses ototoxicity, which is damage to the inner ear caused by certain drugs. It notes that common ototoxic drugs include cisplatin, aminoglycosides, loop diuretics, and more. Symptoms of ototoxicity include hearing loss, tinnitus, and vertigo. The document outlines the anatomy of the inner ear and hearing physiology. It describes the types of damage caused by ototoxic drugs like degeneration of hair cells and nerves. Risk factors, diagnosis through audiology tests, monitoring protocols, and rehabilitation options are discussed. The conclusion emphasizes the importance of routine monitoring when using ototoxic drugs to detect changes early and minimize hearing impacts.
Hoarseness is an abnormal change in the voice that can be caused by disorders of the vocal folds. Symptoms include a breathy, raspy, strained or abnormal pitch or volume. Common causes discussed include benign vocal fold lesions from overuse, vocal fold hemorrhage from yelling, gastroesophageal reflux, laryngopharyngeal reflux, smoking, and neurological disorders. Evaluation includes laryngoscopy and other imaging tests if needed. Treatment depends on the underlying cause but may include voice therapy, antireflux therapy, corticosteroids, antimicrobials, botulinum toxin injections, or surgery. Preventive measures like hydration and avoiding irritants can help lower risk of hoarseness.
This study investigated the immediate effects of transcutaneous electrical nerve stimulation (TENS) and laryngeal manual therapy (LMT) on musculoskeletal pain, voice quality, and self-reported signs in 30 women with behavioral dysphonia. The women were randomly assigned to receive either a single 20-minute TENS session or a single 20-minute LMT session. Both TENS and LMT reduced musculoskeletal pain in different areas of the neck and back. TENS improved vowel instability, while LMT improved overall voice quality and reduced breathiness. Both therapies provided positive effects on voice and laryngeal signs, with TENS showing better results for improving voice quality.
This document provides an overview of tinnitus, including its definition, prevalence, classification, and potential etiologies. It then discusses various treatment options for tinnitus that have been studied, including counseling, sound therapy, transcranial direct current stimulation, hearing aids, music therapy, pharmacotherapy, transcutaneous electrical nerve stimulation, dental/orthodontic treatments, and osteopathic manipulative treatment. Many of the treatments discussed have limited or inconclusive evidence regarding their effectiveness for tinnitus, and more research is still needed to determine the best approaches.
This document discusses hearing loss, including definitions, types, causes, examination, diagnosis, and management. It defines different levels of hearing loss based on decibel thresholds. The main types are conductive, sensorineural, and mixed hearing loss. Sensorineural hearing loss is usually permanent and caused by inner ear or nerve damage. Causes include genetic syndromes, infections, trauma, tumors, ototoxic drugs, aging, and noise exposure. Evaluation involves history, physical exam including Weber and Rinne tests, and audiometry. Imaging and labs may be needed depending on history. Management depends on type, but may include hearing aids, cochlear implants, rehabilitation through lip reading and sign language. Rehabilitation of children focuses
This case report describes a 58-year-old female patient who presented with pain in her lower left back tooth. During examination, the clinicians observed involuntary, repetitive movements of the patient's mandible resembling teeth grinding. No other abnormalities were found. Based on the clinical findings, the patient was diagnosed with oromandibular dystonia. Oromandibular dystonia is a type of focal dystonia affecting the mouth, jaw, and tongue muscles, causing involuntary contractions and repetitive movements. It can be difficult to diagnose and is managed through a multidisciplinary approach.
Dystonia is the manifestation of involuntary lasting severe muscle contractions, which lead to rhythmic and atypical movements in different parts of the body. Dystonia is the most common movement disorder next to Parkinson’s disease (PD) and essential tremor (ET). Oro Mandibular Dystonia (OMD) is considered as a focal dystonia involving mouth, jaw, and tongue, manifested by involuntary muscle contractions producing repetitive, patterned movements of the involved structures. The diagnosis of OMD is purely clinical and is to be differentiated thoroughly from the conditions mimicking the signs. Since it presents in various forms and severities it further renders the management a multidisciplinary approach with variable treatment outcomes. The following is a clinical diagnostic case report of oromandibualar dystonia with presenting signs and symptoms, history and examination characteristic of the condition
This document discusses paradoxical vocal fold motion (PVFM), also known as vocal cord dysfunction. It describes PVFM as a condition where the vocal folds adduct during inhalation and/or exhalation, causing upper airway obstruction. Common signs and symptoms include asthma-like breathing difficulties and sensations of tightness in the laryngeal area. At-risk populations tend to be women ages 20-40 with over 12 years of education working in healthcare. Differential diagnosis requires a multidisciplinary evaluation. Treatment involves patient education, speech therapy, and in rare cases surgery. The document also discusses considerations for voice therapy with transgender clients.
This PPT is aims to provide knowledge and understanding about the concept of Hearing impairment, Causes of Hearing Impairment, Types of Hearing Impairment, Prevention of Hearing Impairment and Prevalence of Hearing Impairment.
1. Labyrinthitis is an inner ear inflammation that causes severe vertigo, nausea, hearing loss and imbalance.
2. It is usually caused by viral or bacterial infections, such as those causing colds or ear infections.
3. Treatment focuses on relieving symptoms through bed rest, medications and sometimes surgery. Patients require care to prevent falls and dehydration during recovery.
The document summarizes a teaching course on botulinum toxin for oromandibular dystonia and spasmodic dysphonia. The course consists of two sessions, the first covering applications of botulinum toxin in nondystonic disorders, and the second focused on oromandibular dystonia and spasmodic dysphonia. The document provides details on epidemiology, etiology, involved muscles, dosing ranges, subtypes, injection techniques and adverse effects for the treatment of these conditions using botulinum toxin.
This case report describes the use of a silicone implant for augmentation rhinoplasty in a 17.5-year-old male patient with a saddle nose deformity caused by a previous nasal infection. A silicone implant was placed through an incision in the columella to reconstruct the nasal dorsum. The postoperative result showed good correction of the nasal deformity with no complications. The report discusses the advantages of silicone implants for augmentation rhinoplasty, including affordability, low risk of extrusion or infection when placed properly, and the ability to provide mild to moderate height increases with good cosmetic outcomes.
This document presents a case report of a 55-year-old man with a sinonasal paraganglioma. He presented with episodes of epistaxis and a nasal mass. Imaging showed a mass involving the frontal sinus and ethmoids bilaterally. He underwent surgical excision of the mass along with cranialization of the frontal sinus using a fascia lata graft. Histopathology confirmed paraganglioma. The patient was followed for 1 year without signs of recurrence. Paragangliomas are rare tumors that can present in the sinonasal tract. Complete surgical excision is usually curative for benign cases.
Unusual Presentation of Tuberculosis in Head and Neck RegionAakanksha Rathor
The document reports on 3 cases of unusual presentations of tuberculosis in the head and neck region, including intraparotid lymphadenitis, branchial cyst tuberculosis, and jugular chain lymphadenitis. The cases were diagnosed through various clinical examinations, imaging studies, and histopathological analysis. All 3 cases were successfully treated with antitubercular medication alone or in combination with surgery, and showed no signs of recurrence or non-compliance to treatment.
This document summarizes a study on the analysis and management of tripod fractures. The study evaluated 101 patients with faciomaxillary injuries admitted to a hospital in Assam, India over one year. Road traffic accidents were found to be the most common cause of injury, affecting mostly males aged 23-27. Nasal bone fractures were the most prevalent faciomaxillary fracture, while zygomatic fractures accounted for 23% of cases. Zygomatic fractures were classified and patients were managed either conservatively or through open/closed reduction based on the fracture severity. Outcomes were evaluated through follow-up examinations and imaging to assess for complications and restoration of facial features.
GIANT ANTERIOR NECK LIPOMA WITH MEDIASTINAL EXTENSIONAakanksha Rathor
This document describes a case report of a rare giant anterior neck lipoma with mediastinal extension in a 48-year-old female patient. The large lipoma mass measured 16x14.8x13 cm and extended from the neck into the anterior mediastinum. Imaging including ultrasound, CT scan, and biopsy confirmed the diagnosis of a benign lipoma. The entire lipoma weighing 1200 grams was surgically removed from the neck and mediastinum without complications. The patient recovered well and had no recurrence after 1 year of follow up.
Fibrous dysplasia is a benign bone condition caused by a mutation in the GNAS1 gene that results in abnormal bone growth. It can involve single bones (monostotic) or multiple bones (polyostotic). The document reports a case study of a 22-year-old female with monostotic fibrous dysplasia affecting her left maxillary bone. Imaging and biopsy confirmed the diagnosis. She underwent surgery to remove the abnormal bone and reconstruct the orbital floor. Histopathology of the removed bone found features consistent with fibrous dysplasia. Post-surgery, her facial asymmetry and nasal obstruction were corrected.
ABDOMINAL TRAUMA in pediatrics part one.drhasanrajab
Abdominal trauma in pediatrics refers to injuries or damage to the abdominal organs in children. It can occur due to various causes such as falls, motor vehicle accidents, sports-related injuries, and physical abuse. Children are more vulnerable to abdominal trauma due to their unique anatomical and physiological characteristics. Signs and symptoms include abdominal pain, tenderness, distension, vomiting, and signs of shock. Diagnosis involves physical examination, imaging studies, and laboratory tests. Management depends on the severity and may involve conservative treatment or surgical intervention. Prevention is crucial in reducing the incidence of abdominal trauma in children.
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The UK is currently facing a Adhd Medication Shortage Uk, which has left many patients and their families grappling with uncertainty and frustration. ADHD, or Attention Deficit Hyperactivity Disorder, is a chronic condition that requires consistent medication to manage effectively. This shortage has highlighted the critical role these medications play in the daily lives of those affected by ADHD. Contact : +1 (747) 209 – 3649 E-mail : sales@trinexpharmacy.com
Muktapishti is a traditional Ayurvedic preparation made from Shoditha Mukta (Purified Pearl), is believed to help regulate thyroid function and reduce symptoms of hyperthyroidism due to its cooling and balancing properties. Clinical evidence on its efficacy remains limited, necessitating further research to validate its therapeutic benefits.
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Basavarajeeyam is a Sreshta Sangraha grantha (Compiled book ), written by Neelkanta kotturu Basavaraja Virachita. It contains 25 Prakaranas, First 24 Chapters related to Rogas& 25th to Rasadravyas.
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).
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DISCUSSION
It is among the common voice disorders, with primary MTD
accounting for approximately 10-40% of the caseload of a typical
voice center (Roy, 2003). In our study, we made the diagnosis on
the basis of history, clinical & videolaryngoscopic examination.
We found tenderness over different sites in the neck which were
related to their respective excessive muscle tension. We started
voice therapy before the surgery, in cases of vocal cord
nodule/polyp so that their habits of voice abuse & misuse &
compensatory behavior don’t have worse affect postoperatively.
Patients were informed about their diagnosis, anatomy &
physiology of normal vocal tract in order to minimize the anxiety
& stress and also to develop their belief in the voice therapy so
that drop out cases may be reduced. Vocal hygiene was instructed
to every patient to eliminate the environmental & behavioral
factors. Posture & mouth opening during phonation were
corrected. Inappropriate muscle usage causing muscle tension at
neck, floor of mouth or jaw were managed accordingly by
massaging the muscle in tension, in the line of their muscle fibers.
Treatment generally targets the increased hyolaryngeal elevation
and laryngeal & perilaryngeal muscular tension. Circumlaryngeal
massage was considered to treat extrinsic laryngeal muscle
tension. Patients were considered for symptomatic, physiologic &
psychogenic voice therapy in addition to respiratory retraining as
& when required. In one of our cases i.e., Dysphonia Plica
Ventricularis we considered psychotherapy because he was
having anxiety & depression due to failure in exams during the
onset of symptoms. Another case i.e., cut throat injury, was very
interesting. He presented with homicidal cut throat injury & was
managed accordingly. But during the course he developed MTD,
as a compensatory behavior. A bulge in the neck above the larynx
could easily be appreciated during phonation. Then after the end
of primary treatment he was given voice therapy. Associated
laryngopharyngeal reflux was also treated as & when required in
all the patients.
Symptoms in MTD are usually husky, hoarse, breathy and/or
rough voice, decreased loudness, difficult or effortful phonation,
deterioration of voice with prolonged use. Other symptoms may
be present like irritation in throat, feeling tightness or a sensation
of a lump in the throat, have to frequently clear the throat and
increased mucus in the throat. On examination, posture of body
during phonation may be poor leading to increased laryngeal &
paralaryngeal tension. Increased muscle tension hamper the
movement of larynx on phonation. Patient may have developed
tilting of neck while using mobile phone excessively. Due to
increased tone in the thyrohyoid and tongue base muscles there is
elevation of the larynx and hyoid bone which stiffen the vocal
folds9
& produce anteroposterior supraglottic contraction10
affecting the phonatory patterns. Overuse of particular muscle will
cause tenderness over that particular site which can be elicited by
slight pressure with forefingers. MTD patients are usually
assessed by palpation for elevated laryngeal position, increased
extrinsic laryngeal muscle activation10, 11, 12, 13,15,16
shortening of the
sternocleidomastoid & stylohyoid muscles12
. Muscle misuse &
non muscle-misuse dysphonia can be differentiated with increased
palpable tension (Angsuwarangsee & Morrison).
Auditory perceptual features of MTD include strained or effortful
voice quality, aberrant pitch, breathiness or vocal fatigue16,17
.
Physiologic features of MTD are elevated hypopharyngeal
position, decreased space between hyoid & larynx and increased
extrinsic laryngeal muscle tension. Hyolaryngeal elevation &
excessive extrinsic laryngeal muscle activation can influence the
mechanics of vocal fold vibration9,18
and are considered important
contributors to the dysphonia in MTD. MTD can be diagnosed on
Transnasal fibreoptic videolaryngoscopy on the basis of presence
of anteroposterior squeezing with arytenoid & epiglottic
apposition severly affecting vocal fold output, shortening of vocal
cord with increase in mass & stiffness, adduction of false vocal
cord with ventricle compression, increased adductor muscle tone
or inappropriate vocal cord closure19
. Inappropriate closure of
vocal cords can be appreciated as elliptical opening or bowing,
hour glass shape, anterior chink, posterior chink, variable position
of glottal opening, incomplete closure along most of the length of
vocal cord. There can be a diagnostic confusion between
Adductor spasmodic dysphonia and muscle tension dysphonia
due to voice characteristics that can mimic each other but apart
from the above discussion phonatory breaks & laryngeal airflow
effectively distinguish MTD from a neurologic disorder17, 20,21
.
Voice abuse & misuse lead to the development of vocal lesions
(i.e., nodules), leading to altered phonatory behaviors to
compensate the glottal insufficiency. This is expected to heighten
the shearing forces at the site of a lesion, enhancing its maturity22
.
This is a vicious cycle. Alternatively or in additionally
development of MTD may have contributions from psychological
& behavioral component which may lead to development of the
vocal cord nodule, polypoidal degeneration or chronic laryngitis23,
Figure 1 Grbas Score
0
2
4
6
8
10
12
14
N
N
N
N
N
P
P
P
CT
PMTD
PMTD
PMTD
PMTD
PMTD…
BEFORE VOICE THERAPY
AFTER VOICE THERAPY
Figure 2 Voice Handicap Index
0
10
20
30
40
50
60
70
N
N
N
N
N
P
P
P
CT
PMTD
PMTD
PMTD
PMTD
PM…
BEFORE VOICE THERAPY
AFTER VOICE THERAPY
VOICE THERAPY
Vocal Hygiene
Symptomatic Voice Therapy : Circumlaryngeal massage,
Chewing exercises, Yawn sigh approach, Phonation on inhalation
Respiratory Retraining : Breath support, Confidential voice
therapy
Physiologic Voice Therapy : Vocal function exercises, Accent
method, Resonant voice Therapy
Psychogenic Voice Therapy
3. International Journal of Recent Scientific Research, Vol. 4, Issue, 8, pp. 1181- 1184, August, 2013
1183
24
. Voice rest during acute laryngitis can prevent MTD by
avoiding training of the sensorimotor system in the presence of
altered feedback. In addition to all of the above a surgery should
be considered if needed in addressing etiology or the effect of
MTD (like vocal cord nodule). Management of MTD is
multidisciplinary involving otorhinolaryngologist, psychotherapist
and general physicist. Interrelationship of the precipitating factors
can be divided into four “platforms”:
Posture & muscle usage: An improper posture during phonation
itself can lead to imbalance in the laryngeal musculature leading
to MTD. Straight head, neck & back, relaxed shoulder (no
drooping of shoulder), correct breath support in relaxed or
unstrained manner are the necessity for proper phonation.
Behavioral & environmental factors: An understanding of the
environmental & behavioral factors on phonation allows their
application in management of MTD. Environmental factors like
dust, smoke, dry air, poor acoustics or amplifications, background
noise & inadequate rest during phonation should be corrected.
Faulty behavior of the patient’s like throat clearing or coughing,
dehydration, voice abuse and misuse etc. should be corrected in
order to treat MTD efficiently & effectively.
Laryngopharyngeal reflux: This is usually the cause of patient’s
faulty behavior & is also a predisposing factor for MTD25
.
Management of this should be included in the management of
MTD.
Psychological: Patient’s anxiety, emotional distress,
psychological status need to be addressed in order to manage
MTD. Patient should be reassured about the disease that there is
no serious pathology & thorough explanation of anatomy &
physiology of the vocal tract is needed. If there is any other
psychyological problem then it should be addressed accordingly
with the help of psychotherapist. All these, will help the patient to
relax, be confident & also encourage him to continue the
treatment properly.
CONCLUSION
MTD whether, primary or secondary, is due to imbalance in the
laryngeal & paralaryngeal musculature during phonation caused
by a diverse number of etiological factors viz. vocal misuse/abuse,
psychological/personality disorders, compensatory vocal habits
in case of upper airway infections, organic lesions and
laryngopharyngeal reflux. Muscle Tension Dysphonia is
diagnosed on the basis of detailed history, clinical &
videolaryngoscopic examinations. Every aspect of MTD whether
postural, behavioral, environmental or psychological should be
considered & managed appropriately. Laryngopharyngeal reflux
is needed to be treated appropriately. In cases of secondary MTD,
the etiological factor like vocal cord nodule etc. should be
managed surgically if needed to ameliorate the compensatory
behavior. Vicious cycle of etiology & effect needs to be interfered
as early as possible to stop the deterioration of voice further or to
prevent the development of compensatory behavior.
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