Journal of the Korean Society of Laryngology, Phoniatrics and Logopedics (대한후두음성언어의학회지)
- Volume 25 Issue 2
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- Pages.79-81
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- 2014
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- 2508-268X(pISSN)
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- 2508-5603(eISSN)
Laryngeal Dystonia and Muscle Tension Dysphonia
후두 근긴장이상증과 근긴장성 발성장애
- Kim, Ji Won (Department of Otolaryngology, Asan Medical Center, University of Ulsan College of Medicine) ;
- Choi, Seung-Ho (Department of Otolaryngology, Asan Medical Center, University of Ulsan College of Medicine)
- Published : 2014.12.31
Abstract
Spasmodic dysphonia (SD) is a chronic, focal, speech-induced, action-specific dystonia, resulting strained voice. Muscle tension dysphonia (MTD) may also result in a strangled, strained voice quality, usually as a result of compensation for underlying laryngeal disease such as glottal insufficiency. Patients with SD and MTD were suffered from the severely limiting people's communication, especially via telephone and in noisy backgrounds. SD is usually of the adductor type characterized by glottic contractions causing tightness and voice breaks, which is difficult to distinguish from MTD. In this review article, we present the characteritics and management of SD and MTD.