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Muscle tension dysphonia (MTD) is a voice disorder caused by excessive tension in the muscles surrounding the larynx, resulting in inefficient voice production. While MTD primarily affects the voice, it has also been associated with swallowing difficulties, known as muscle tension dysphagia (MTDg). MTDg is characterised by hyperactive and discoordinated muscle activity in the pharynx and larynx, leading to dysphagia or difficulty swallowing. This condition often goes underdiagnosed, and comprehensive assessments may not always reveal an underlying cause for the swallowing difficulties. However, research suggests a strong link between MTD and MTDg, indicating that muscle tension dysphonia may contribute to or exacerbate swallowing problems in some individuals.
| Characteristics | Values |
|---|---|
| Muscle tension dysphonia (MTD) | One of the most common voice disorders |
| Cause | Muscle tension in and around the voice box |
| Primary MTD | Tense muscles in the neck with no abnormality in the larynx |
| Secondary MTD | Abnormality in the voice box causing overuse of other muscles |
| Symptoms | Rough, hoarse, weak, strained, breathy, airy, whisper-like, breaking pitch, etc. |
| MTDg | Muscle tension dysphagia, a swallowing disorder |
| MTDg Symptoms | Difficulty swallowing solids, throat discomfort, food sticking in the throat |
| MTDg Diagnosis | Diagnosis of exclusion, ruling out other causes of dysphagia |
| MTDg Treatment | Voice therapy, physical therapy, myofascial release therapy, anxiety management, etc. |
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What You'll Learn
- Muscle tension dysphonia (MTD) is a voice disorder caused by muscle tightness
- MTD can cause difficulty swallowing solids, discomfort in the throat, and a sensation of food sticking in the throat
- MTDg (muscle tension dysphagia) is a diagnosis of exclusion, requiring instrumental dysphagia screening to rule out other causes
- MTDg is believed to be part of a spectrum of disorders called laryngeal hypersensitivity/hyperresponsive disorders (LHS/LHR)
- Treatment for MTD includes voice therapy, physical therapy, myofascial release therapy, and anxiety management
Muscle tension dysphonia (MTD) is a voice disorder caused by muscle tightness
MTD can be classified as primary or secondary. In primary MTD, the muscles in the neck are tense when using the voice, but there is no abnormality in the larynx (voice box). On the other hand, secondary MTD involves an abnormality in the voice box that causes the overuse of other muscles to produce the voice. The exact cause of MTD is not fully understood, but it may be due to irritants such as upper respiratory infections, passive smoking, acid reflux, or excessive talking, loud talking, yelling, or speaking at a pitch that is too high or too low.
While MTD primarily affects the voice, some patients also experience difficulty swallowing, known as muscle tension dysphagia (MTDg). MTDg is characterised by difficulty swallowing solids, throat discomfort when swallowing, and a sensation of food sticking in the throat. It is important to distinguish MTDg from other causes of dysphagia, as they may have different underlying pathologies. MTDg is believed to be associated with muscle tension in the pharynx and larynx, contributing to the development of dysphagia.
The diagnostic framework for MTDg typically includes a comprehensive clinical swallow evaluation, a laryngoscopic evaluation of the larynx and pharynx, and an instrumental evaluation of oropharyngeal swallowing. Treatment options for MTDg may include physical therapy, myofascial release therapy, anxiety management, and stress-reduction counselling. Voice therapy has also been found to be effective for patients with less severe symptoms. However, swallow strengthening exercises are discouraged as they can exacerbate laryngeal muscle tension.
In summary, muscle tension dysphonia (MTD) is a voice disorder caused by muscle tightness around the larynx, resulting in altered voice quality and, in some cases, difficulty swallowing (MTDg). The condition affects a significant number of individuals, particularly middle-aged women, and can have a detrimental impact on their quality of life. Proper diagnosis and treatment by speech-language pathologists and other specialists are crucial for managing MTD and improving patients' voice and swallowing functions.
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MTD can cause difficulty swallowing solids, discomfort in the throat, and a sensation of food sticking in the throat
Muscle tension dysphonia (MTD) is a voice disorder that occurs when the muscles around the larynx (voice box) are so tight during speech that the voice box does not work efficiently. The excessive tension can result in altered positions and inclinations of the laryngeal cartilages and hyperfunction of intrinsic laryngeal muscles, resulting in dysphonia. This can cause a person's voice to sound strained, hoarse, rough, weak, breathy, airy, or whispered.
MTD can also cause muscle tension dysphagia (MTDg), which is associated with difficulty swallowing solids, discomfort in the throat, and a sensation of food sticking in the throat. MTDg is believed to be caused by muscle tension in the pharynx and larynx, which affects the complex process of swallowing. Swallowing requires precise neurologic coordination of multiple muscles and soft tissues, and muscle tension can interfere with this process.
MTDg is a diagnosis of exclusion, meaning that other potential causes of dysphagia, such as oesophageal webbing, malignancies, and other laryngeal disorders, must be ruled out before diagnosing MTDg. This is done through a comprehensive clinical swallow evaluation, including a thorough history, head and neck examination, laryngoscopic evaluation, and instrumental evaluation of oropharyngeal swallowing.
The treatment of choice for MTD is voice therapy, which can help patients learn to use their voices more comfortably and reduce strain. For patients with severe symptoms or excessive laryngeal tension, referral to a physical therapist for manual therapy to release neck and laryngeal muscle tension may be recommended. It is important to note that swallow strengthening exercises are discouraged as they can worsen laryngeal muscle tension.
While the exact cause of MTD is unknown, it is believed to be related to irritants such as upper respiratory infections, passive smoking, acid reflux, excessive talking, loud talking, yelling, or speaking at an inappropriate pitch. MTD is more prevalent in people aged 40 to 50, especially women, and can have a significant impact on an individual's quality of life.
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MTDg (muscle tension dysphagia) is a diagnosis of exclusion, requiring instrumental dysphagia screening to rule out other causes
Muscle tension dysphagia (MTDg) is a diagnosis of exclusion, requiring instrumental dysphagia screening to rule out other causes. MTDg is characterised by excessive tension of the pharynx and larynx muscles, which can lead to dysphagia, or difficulty swallowing. This condition is often underdiagnosed, and patients may experience a significant impact on their quality of life due to swallowing difficulties. The most common symptoms reported by patients include difficulty swallowing solids, throat discomfort when swallowing, and the sensation of food sticking in the throat.
MTDg is part of a spectrum of muscle-tension laryngeal disorders, which can occur with or without concomitant laryngeal disorders. These disorders are known as ""irritable larynx syndrome"" and include conditions related to the primary functions of the larynx, such as sensation, breathing, voice, and swallowing. It is important to distinguish MTDg from other potential causes of dysphagia, such as oesophageal webbing, malignancies of gastroenterologic nature, or other underlying medical conditions.
The diagnostic framework for MTDg typically includes a comprehensive clinical swallow evaluation, a laryngoscopic evaluation, and an instrumental evaluation of oropharyngeal swallowing. The clinical swallow evaluation involves a thorough history, including individual risk factors and identification of any "red flag" signs or symptoms. The laryngoscopic evaluation allows for a direct visualisation of the larynx and pharynx, while the instrumental evaluation provides further objective measurements of swallowing function.
In some cases, patients with MTDg may also exhibit signs of muscle tension dysphonia (MTD), a separate condition characterised by excessive muscle tension in and around the voice box, resulting in a change in the sound or feel of the voice. However, it is important to note that MTD and MTDg are mutually exclusive, and patients may not always present with both sets of symptoms. Treatment options for MTDg may include physical therapy, myofascial release therapy, anxiety management, and stress-reduction counselling. Voice therapy has also been shown to be effective for patients with less severe symptoms.
MTDg is a relatively new clinical entity, first described by Kang and colleagues in 2016. As such, it is essential to establish clear diagnostic criteria to ensure accurate diagnosis and effective treatment. The lack of standardised diagnostic criteria can impact the generalisability of research findings and clinical practice. Therefore, ongoing research and standardisation of diagnostic procedures are crucial to improving the understanding and management of MTDg.
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MTDg is believed to be part of a spectrum of disorders called laryngeal hypersensitivity/hyperresponsive disorders (LHS/LHR)
Muscle Tension Dysphagia (MTDg) is a condition where hyperactive and discoordinated muscle activity is believed to be the underlying cause of a patient's dysphagia, or difficulty swallowing. MTDg is a diagnosis of exclusion, meaning that other possible causes of dysphagia must be ruled out before a diagnosis of MTDg can be made. This is important because the inappropriate labelling of individuals with MTDg without proper evaluation can lead to a delay in the diagnosis of potentially life-threatening diseases.
Studies have revealed that many patients with suspected MTDg also exhibited a spectrum of muscle tension-based laryngeal disorders known as 'irritable larynx syndrome'. This syndrome is an umbrella term for conditions related to the primary functions of the larynx: sensation, breathing, voice, and swallowing. These disorders may manifest as muscle tension dysphonia, paradoxical vocal fold motion, chronic cough, or other conditions.
The diagnostic framework for MTDg should include a comprehensive clinical swallow evaluation, a laryngoscopic evaluation of the larynx and pharynx, and an instrumental evaluation of oropharyngeal swallowing. Treatment for MTDg may include voice therapy, physical therapy, myofascial release therapy, anxiety management, and stress-reduction counselling. Swallow strengthening exercises are discouraged as they can make laryngeal muscle tension worse.
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Treatment for MTD includes voice therapy, physical therapy, myofascial release therapy, and anxiety management
Muscle tension dysphonia (MTD) is a common voice disorder characterised by excessive muscle tension in and around the voice box, which prevents it from working efficiently. The condition is typically treated by speech-language pathologists (SLPs) using voice therapy, physical therapy, myofascial release therapy, and anxiety management.
Voice therapy is the most common treatment for MTD. It involves learning how to use the right oral resonance, which is the air that flows through the mouth and nose while speaking. Speech therapists may also recommend laryngeal massage and myofascial release, which consists of gentle stretching and massaging in the head, neck, and chest area where tension may be present. These interventions can provide relief from throat strain and discomfort, and patients can be taught to perform these massages themselves to further relax the muscles.
Physical therapy, including manual therapy, exercise, and stress management education, can also be beneficial for patients with MTD by reducing excess muscle tension. A case series involving nine patients with MTD who completed a minimum of nine sessions of physical therapy intervention found improvements in patient-reported outcomes of pain, function, and quality of life.
In addition to physical interventions, managing stress and anxiety is an important component of treating MTD. Stress is one of the underlying causes of increased muscle tension in the extrinsic neck muscles, which can lead to MTD. Therefore, addressing stress and anxiety can help to reduce muscle tension and improve vocal quality.
Overall, while MTD can be painful and frustrating, there are effective treatments available, including voice therapy, physical therapy, myofascial release therapy, and anxiety management. These interventions can help to improve vocal function, reduce muscle tension, and enhance the overall quality of life for individuals with MTD.
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Frequently asked questions
Muscle tension dysphonia (MTD) is a voice disorder that occurs when the muscles around the larynx (voice box) are so tight during speaking that the voice box does not work efficiently.
The most common symptoms of muscle tension dysphonia include a voice that sounds rough, hoarse, gravelly, weak, strained, pressed, squeezed, tight, tense, or breathy. The voice may suddenly cut out, break off, change pitch, or fade away.
Yes, muscle tension dysphonia has been associated with comorbid dysphagia, a condition characterized by difficulty swallowing. This is known as muscle tension dysphagia (MTDg).
The most common symptoms of muscle tension dysphagia include difficulty swallowing solids, throat discomfort with swallowing, and the sensation of food sticking in the throat.
Muscle tension dysphagia is diagnosed through a comprehensive clinical swallow evaluation, including a thorough history, head and neck examination, laryngoscopic evaluation of the larynx and pharynx, and instrumental evaluation of oropharyngeal swallowing.
