Surgical treatment for adductor spasmodic dysphonia – efficacy of bilateral thyroarytenoid myectomy under microlaryngoscopy

ABSTRACT Adductor spasmodic dysphonia is the most common form of laryngeal dystonia and comprises about 80% of all laryngeal dystonias. It is characterized by strained and strangled voice quality causing significant impairment to the patient. This article focuses on the surgical treatment of adductor spasmodic dysphonia by thyroarytenoid muscle ablation. It provides longlasting control of symptoms and patient satisfaction is very high.

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Charateristics of Oral and Laryngeal Diadochokinesis in Adductor Spasmodic Dysphonia Speakers

Journal of speech-language & hearing disorders ◽

10.15724/jslhd.2014.23.3.003 ◽

2014 ◽

Vol 23 (3) ◽

pp. 27-34

Author(s):

박희준 ◽

배인호 ◽

Soon-Bok Kwon ◽

Geun-Hyo Kim

Keyword(s):

Spasmodic Dysphonia ◽

Adductor Spasmodic Dysphonia ◽

Laryngeal Diadochokinesis

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Treatment of Adductor Spasmodic Dysphonia by Type 2 Thyroplasty Using Titanium Bridges

Nihon Kikan Shokudoka Gakkai Kaiho ◽

10.2468/jbes.67.85 ◽

2016 ◽

Vol 67 (2) ◽

pp. 85-85

Author(s):

T. Sanuki ◽

E. Yumoto ◽

K. Mizoguchi ◽

N. Oridate ◽

T. Nito ◽

...

Keyword(s):

Spasmodic Dysphonia ◽

Adductor Spasmodic Dysphonia

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Cross-Innervation of the Thyroarytenoid Muscle by a Branch from the External Division of the Superior Laryngeal Nerve

Annals of Otology Rhinology & Laryngology ◽

10.1177/000348949710600712 ◽

1997 ◽

Vol 106 (7) ◽

pp. 594-598 ◽

Cited By ~ 41

Author(s):

Sina Nasri ◽

Joel A. Sercarz ◽

Pouneh Beizai ◽

Young-Mo Kim ◽

Ming Ye ◽

...

Keyword(s):

Vocal Fold ◽

Superior Laryngeal Nerve ◽

Laryngeal Nerve ◽

Spasmodic Dysphonia ◽

Clinical Implications ◽

Motor Innervation ◽

Vocal Fold Vibration ◽

Adductor Spasmodic Dysphonia ◽

Thyroarytenoid Muscle ◽

Stimulation Of

The neuroanatomy of the larynx was explored in seven dogs to assess whether there is motor innervation to the thyroarytenoid (TA) muscle from the external division of the superior laryngeal nerve (ExSLN). In 3 animals, such innervation was identified. Electrical stimulation of microelectrodes applied to the ExSLN resulted in contraction of the TA muscle, indicating that this nerve is motor in function. This was confirmed by electromyographic recordings from the TA muscle. Videolaryngostroboscopy revealed improvement in vocal fold vibration following stimulation of the ExSLN compared to without it. Previously, the TA muscle was thought to be innervated solely by the recurrent laryngeal nerve. This additional pathway from the ExSLN to the TA muscle may have important clinical implications in the treatment of neurologic laryngeal disorders such as adductor spasmodic dysphonia.

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Laryngeal Framework Surgery in the Management of Spasmodic Dysphonia

Annals of Otology Rhinology & Laryngology ◽

10.1177/000348948909800111 ◽

1989 ◽

Vol 98 (1) ◽

pp. 52-54 ◽

Cited By ~ 34

Author(s):

Harvey M. Tucker

Keyword(s):

Vocal Fold ◽

Vocal Folds ◽

Long Term Results ◽

Spasmodic Dysphonia ◽

Management Problem ◽

Cure Rate ◽

Adductor Spasmodic Dysphonia ◽

Laryngeal Framework Surgery ◽

Selective Lysis

Spasmodic dysphonia continues to be a management problem for otolaryngologists. Selective lysis of the recurrent laryngeal nerve has been useful in the management of this disease. Reported long-term results, however, reveal that spasm recurs in approximately 40% to 50% of initially successful patients in spite of persistence of the unilateral vocal fold paralysis. Although some of these failures can be recaptured with subsequent laser surgery, the overall “cure” rate does not exceed 70%, even in the best hands. The contributions of Isshiki, LeJeune, and Tucker have demonstrated that tension in the vocal folds can be adjusted by laryngeal framework surgery. Experience with 16 patients suffering from adductor spasmodic dysphonia suggests that laryngeal framework surgery is useful in the management of this disorder.

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