抄録
Adductor spasmodic dysphonia is a vocal disorder of uncertain etiology. Section of recurrent laryngeal nerve or injection of botulinum toxin has been used as an effective treatment. But they are not satisfactory long-term treatments. Bilateral thyroaritenoid muscle myectomy is performed by microlaryngoscopic method to four patients of adductor spasmodic dysphonia. Good speech results are obtained immediately after the operation, and no side effect is observed. No patient has experienced a return of symptoms, after one-year follow-up. Bilateral thyroaritenoid myectomy may be a hopeful new long-term approach to spasmodic dysphonia treatment.
