Spasmodic Dysphonia in Singapore

Living with spasmodic dysphonia can significantly impact your ability to communicate effectively, affecting both professional and personal aspects of your life. This voice disorder causes involuntary spasms in the vocal cord muscles, leading to breaks or interruptions in speech. At our clinic in Singapore, we understand the challenges you face and offer comprehensive spasmodic dysphonia treatment options tailored to your specific needs. Our ENT specialist utilises modern diagnostic techniques and established treatments that may help improve voice quality and support communication. Individual results and timelines may vary.

Dr Gan Eng Cern

Ear, nose and throat specialist

MBBS

MRCS (Edin)

mmed (orl)

FAMS

Image Whisk_ca530df19fa36d79871447796307004ddr

What is Spasmodic Dysphonia?

Spasmodic dysphonia is a neurological voice disorder characterised by involuntary muscle spasms in the larynx (voice box) during speech. These spasms cause the vocal cords to squeeze together too tightly or pull apart, resulting in a strained, broken, or breathy voice quality. The condition may affect individuals, though awareness and recognition can vary.

The condition may affect women more frequently than men, and typically develops in middle age. Unlike common voice problems caused by overuse or infection, spasmodic dysphonia is a chronic neurological condition that requires medical evaluation and management.

Types of Spasmodic Dysphonia

Adductor Spasmodic Dysphonia

This form is commonly observed in clinical practice. The vocal cords may contract and stiffen during speech, which can cause voice breaks and a strained quality. Patients may describe sensations of difficulty with speech production. The voice may sound different during laughter or singing compared to regular conversation.

Abductor Spasmodic Dysphonia

In this type, the vocal cords may open involuntarily during speech, which can cause breathy breaks and a quieter voice. Patients may experience challenges being heard in noisy environments. The voice may sound whispered or air-filled, particularly on words starting with voiceless consonants like ‘p’, ‘t’, or ‘k’.

Mixed Spasmodic Dysphonia

Some patients may experience features of both adductor and abductor types, with alternating periods of strained and breathy voice breaks. This presentation requires careful evaluation and individualised treatment planning. The symptoms may vary throughout the day or in different speaking situations.

This information is provided for educational purposes and consultation with a healthcare professional is recommended for proper evaluation and treatment planning.

Causes & Risk Factors

Causes

The exact cause of spasmodic dysphonia remains unknown, though research suggests it involves abnormal functioning in the basal ganglia, the brain region controlling muscle movement. Current evidence points to:

Abnormal neural signals between the brain and vocal muscles
Possible genetic mutations affecting brain function
Dysfunction in the central motor processing areas
Altered neurotransmitter activity in specific brain regions

Risk Factors

Several factors may be associated with the development of spasmodic dysphonia:

Family history of dystonia or movement disorders
Previous upper respiratory infections preceding symptom onset
Psychological stress or trauma (as a potential trigger, not a cause)
Female gender (women may be affected more frequently)
Age between 30-50 years
History of other focal dystonias
Certain genetic variations (though specific genes remain under investigation)

Signs & Symptoms

Mild Symptoms

Occasional voice breaks during specific words or sounds
Slight strain when starting to speak
Voice fatigue after brief conversations
Difficulty projecting voice in noisy environments
Subtle changes in voice quality noticed mainly by the patient

Moderate Symptoms

Frequent interruptions in speech flow
Noticeable effort required to produce voice
Strangled or strained voice quality (adductor type)
Breathy, whispered segments in speech (abductor type)
Difficulty maintaining consistent volume
Increased symptoms during phone conversations or presentations

Severe Symptoms

Nearly unintelligible speech during episodes
Extreme vocal effort causing physical exhaustion
Complete voice blocks preventing communication
Secondary muscle tension in the neck and shoulders
Significant social and occupational impairment
Avoidance of speaking situations

Symptoms typically begin gradually and may initially be mistaken for stress-related voice problems. The condition often progresses over time before stabilising, though stress and fatigue can temporarily worsen symptoms.

Experiencing these symptoms?

Consider consulting with an ENT specialist for proper evaluation and to discuss available treatment options.

Make an Enquiry

When to See an ENT Specialist

Seek medical attention promptly if you notice persistent voice changes lasting more than two weeks. Red flag symptoms requiring immediate evaluation include sudden voice loss, pain when speaking, difficulty swallowing, or breathing problems with voice changes. During your consultation, an ENT specialist will conduct a comprehensive voice evaluation, including detailed history-taking about symptom onset and progression.

Seek treatment when voice problems interfere with daily communication or cause emotional distress. Early intervention may allow for symptom management and can help prevent compensatory behaviours that may complicate treatment. Some patients wait before seeking help, potentially experiencing communication difficulties that could be managed. Your first visit will involve a thorough examination of your vocal cords and assessment of voice function to determine an appropriate treatment approach.

Diagnosis & Testing Methods

Accurate diagnosis of spasmodic dysphonia requires evaluation by an ENT specialist experienced in voice disorders. The diagnostic process begins with a comprehensive voice history and assessment of speech patterns. Your specialist will listen for characteristic voice breaks and evaluate how symptoms change across different speech tasks.

Flexible Laryngoscopy: This primary diagnostic tool involves passing a thin, flexible scope through the nose to visualise the vocal cords during speech. The procedure is performed in-clinic without sedation. Video recording allows analysis of vocal cord movement patterns specific to spasmodic dysphonia.
Stroboscopy: This examination uses strobe lighting synchronised with vocal cord vibration to create a slow-motion view of vocal cord movement. It helps differentiate spasmodic dysphonia from other voice disorders and assess the severity of spasms. The test aims to provide information about vocal cord function.
Voice Analysis: Acoustic and aerodynamic measurements can quantify voice characteristics including pitch breaks, voice onset delays, and airflow patterns. These objective measures may help track treatment response over time. Computer-based analysis can provide documentation of voice quality parameters.
Neurological Evaluation: Some patients may require additional neurological assessment to rule out other movement disorders or identify coexisting conditions. This may include examination of other muscle groups for signs of dystonia. This evaluation aims to guide comprehensive treatment planning.

Treatment Options Overview

Botulinum Toxin Injections

Botulinum toxin injection into the affected vocal cord muscles represents a recognised treatment for spasmodic dysphonia. The medication temporarily weakens overactive muscles, which may reduce spasms. An ENT specialist performs these injections using EMG guidance or through direct visualisation to ensure precise placement. Patients may experience voice improvement, though some temporary breathiness or swallowing difficulty may occur initially.

Voice Therapy

Specialised voice therapy with a speech-language pathologist helps optimise voice production and develop compensatory strategies. Therapy focuses on reducing excessive muscle tension, improving breath support, and modifying speech patterns to minimise spasms. Voice therapy can enhance the effectiveness of other treatments and may help maintain voice quality between injections. Sessions typically occur weekly initially, then taper based on progress.

Oral Medications

Certain medications may provide symptom relief in selected patients. Anticholinergic drugs, benzodiazepines, or baclofen might reduce muscle spasms, though effectiveness varies considerably between individuals. These medications work by affecting neurotransmitter activity in the nervous system. A specialist carefully monitors medication trials to assess benefit versus side effects.

Surgical Options

For patients who don’t respond adequately to botulinum toxin or cannot tolerate repeated injections, surgical interventions may be considered. Selective laryngeal denervation-reinnervation surgery involves cutting the nerve causing spasms and reconnecting it with another nerve to restore more normal function. Thyroarytenoid myectomy removes small portions of the vocal cord muscle to reduce spasms. These procedures require careful patient selection and specialised surgical expertise.

Augmentative Communication Devices

In severe cases affecting functional communication, augmentative devices or applications may supplement verbal communication. Modern voice amplification systems can help project weak voices in challenging acoustic environments. Text-to-speech applications provide backup communication methods during severe symptom periods.

Every patient’s condition is unique.

An ENT specialist can assess your specific situation and recommend the most suitable treatment.

Make an Enquiry

Complications if Left Untreated

Without treatment, spasmodic dysphonia may lead to psychological and social complications. Patients might develop anxiety or depression related to communication difficulties, potentially leading to social isolation and reduced quality of life. Professional activities may be affected as patients might avoid speaking situations.

Prolonged vocal strain can cause secondary muscle tension dysphonia, where compensatory muscle patterns may create additional voice problems. This muscular compensation often affects the neck and shoulders, potentially leading to chronic pain and tension headaches. Some patients may develop altered breathing patterns that could further affect voice production.

The condition’s impact may extend to personal relationships, as communication difficulties can affect family dynamics and social connections. Patients might report feeling misunderstood due to their voice quality. Treatment intervention aims to help prevent these secondary complications and support overall functioning.

Long-term untreated spasmodic dysphonia might also make eventual treatment more complex as compensatory behaviours can become established. Consultation with a healthcare professional is recommended for proper assessment and management options.

Prevention

As spasmodic dysphonia is a neurological condition with unclear causes, primary prevention strategies don’t exist. The condition cannot be prevented through voice rest, vocal exercises, or lifestyle modifications. Unlike voice disorders caused by vocal abuse or misuse, spasmodic dysphonia develops regardless of voice habits.

Several strategies may help prevent symptom worsening and maintain voice function once diagnosed. Managing stress through relaxation techniques, meditation, or counselling may help reduce symptom severity during difficult periods. Maintaining general health through adequate sleep, hydration, and regular exercise can support overall neurological function.

Avoiding voice strain during symptom flares may help prevent secondary muscle tension problems. Working with a speech therapist early in the condition can help establish compensatory strategies before maladaptive patterns develop. Regular follow-up with your ENT specialist ensures timely treatment adjustments as needed. Creating a supportive environment at work and home, where communication partners understand the condition, may help reduce psychological stress that could worsen symptoms.

For Singaporeans & Singapore Permanent Residents

Medisave & Insurance Shield Plan approved

Your ENT procedure may be eligible for Medisave claims, with the claimable amount varying based on the procedure’s complexity. For additional options, including the use of your insurance or Integrated Shield Plan, reach out to our friendly clinic staff today for assistance.

Speak to us

Frequently Asked Questions (FAQ)

Is spasmodic dysphonia curable?

Currently, there is no cure for spasmodic dysphonia, but treatments may help improve voice quality and communication ability. Botulinum toxin injections can provide symptom relief for patients, though treatments need to be repeated. Research into new treatments continues, and management strategies evolve. With appropriate treatment, patients may achieve voice function for daily communication needs.

How is spasmodic dysphonia different from other voice problems?

Unlike common voice disorders caused by vocal cord lesions, infections, or overuse, spasmodic dysphonia is a neurological condition affecting brain signals to vocal muscles. The voice may sound normal during emotional speech, singing, or whispering but breaks up during regular conversation. This task-specific nature distinguishes it from structural voice problems. Diagnosis requires evaluation by an ENT specialist familiar with neurological voice disorders.

What can I expect from botulinum toxin treatment?

Botulinum toxin injections are performed in-clinic. Using a thin needle, the medication is injected into specific vocal cord muscles. Initial effects may appear within days, with voice improvement developing over time. Some patients may experience temporary mild breathiness or swallowing difficulty post-injection. Benefits may last several months before repeat treatment is needed.

Will my voice return to completely normal with treatment?

While treatment may improve voice quality, complete normalisation is uncommon. Patients may achieve improvement in voice function with treatment. The goal is functional communication rather than perfect voice quality. Individual response varies, and our ENT Specialist can discuss realistic expectations based on your specific condition presentation and severity.

Can stress make spasmodic dysphonia worse?

Psychological stress, fatigue, and anxiety may temporarily worsen symptoms, though they don’t cause the condition. Patients may notice increased voice difficulty during stressful periods or when tired. Stress management techniques and adequate rest may help maintain voice function between treatments. Our specialist may recommend stress reduction strategies as part of comprehensive management.

Are there any support groups for people with spasmodic dysphonia in Singapore?

Support groups can provide emotional support and practical advice from others experiencing similar challenges. Online international support communities offer accessible resources. Our clinic can provide information about available support options and connect you with appropriate resources. Patients may find peer support helpful for coping strategies and treatment experiences.

How do I explain my condition to others?

Educating family, friends, and colleagues about spasmodic dysphonia helps create understanding and support. You can explain that it’s a neurological condition affecting voice control, similar to how other neurological conditions affect movement. Emphasise that it’s not contagious, psychological, or due to vocal abuse. Our clinic provides educational materials you can share with others to facilitate understanding and reduce communication stress.

Conclusion

Spasmodic dysphonia, whilst challenging, is a manageable condition with appropriate medical care and support. Understanding that this is a neurological disorder, not a psychological issue or result of voice misuse, helps patients seek appropriate treatment without unnecessary delay. Modern treatment approaches, particularly botulinum toxin injections combined with voice therapy, may provide symptom relief for patients.

Living with spasmodic dysphonia requires adaptation and patience, but with proper management, individuals may maintain fulfilling personal and professional lives. The key lies in working with experienced healthcare professionals who understand the condition’s complexities and can tailor treatment to your specific needs. Regular follow-up aims to support optimal voice function as the condition evolves.

Take the First Step Towards Better Voice Health

Living with spasmodic dysphonia can be challenging, but you don’t have to face it alone. Our ENT Specialist has experience in diagnosing and treating spasmodic dysphonia using current evidence-based approaches.

Make an Enquiry

Dr Gan Eng Cern

Ear, nose and throat specialist

MBBS

MRCS (Edin)

mmed (orl)

FAMS

With over 15 years of experience, Dr Gan specialises in the comprehensive management of a broad range of conditions related to the ear, nose and throat (ENT), and head and neck.

Dr. Gan has contributed to the academic field as a Senior Clinical Lecturer at the Yong Loo Lin School of Medicine, National University of Singapore. He underwent his subspecialty training in Rhinology (Nose & Sinus conditions) and Endoscopic Skull Base Surgery at the renowned St Paul’s Sinus Center, part of the University of British Columbia in Vancouver, Canada. He is recognised for his extensive research work, with numerous contributions to reputable international ENT journals. Dr Gan is also highly sought after as a speaker and has shared his surgical knowledge as a surgical dissection teacher at various prominent ENT conferences and courses.

2020 – Reader’s Choice Gold Award for Best ENT Specialist (Expat Living Singapore)
2016 – Best Educator Award (Eastern Health Alliance)
2016 – “Wow” Award (Patient Compliment)

2014 – Eastern Health Alliance Caring Award – Silver
2014 – 19th Yahya Cohen Memorial Lectureship (awarded by the College of Surgeons, Academy of Medicine Singapore for best scientific surgical paper)
2012 – Human Manpower Development Award (Ministry of Health, Singapore)
2007 – Singhealth Best Doctor Award

Qualifications

MBBS – Bachelor of Science, Bachelor of Medicine, Bachelor of Surgery (University of New South Wales, Sydney, Australia)
MRCS (Edin) – Member of the Royal College of Surgeons Edinburgh, United Kingdom
MMed (ORL) – Master of Medicine in ENT (National University of Singapore)
FAMS – Fellow of the Academy of Medicine Singapore

Read Full Bio

Singapore ENT specialist performing a procedure

Make an Enquiry

Fill up the form and our friendly clinic staff will get back to you promptly.

Our Location

A Specialist Clinic for Sinus, Snoring & ENT

38 Irrawaddy Road #08-45
Mount Elizabeth Novena Hospital
Singapore 329563

[email protected]

+65‎ 6253‎ 7296

+65 9058 2480

Mon – Fri: 9:00 am – 5:00 pm
Sat: 8:30 am – 12:00 pm