J Korean Soc Laryngol Phoniatr Logoped.  2021 Aug;32(2):94-97. 10.22469/jkslp.2021.32.2.94.

Intractable Muscle Tension Dysphonia Treated by Injection Laryngoplasty and Lidocaine Injection

• An YY
• Jeong JY
• Park KN
• Lee SW

• KMID: 2519489
• DOI: http://doi.org/10.22469/jkslp.2021.32.2.94

Abstract

Muscle tension dysphonia (MTD) is a voice disorder characterized by excessive tension of the laryngeal muscles during phonation. Voice therapy is the gold standard of treatment for MTD. However, patients with MTD do not always respond to voice therapy. Multidisciplinary approaches have been attempted to treat intractable MTD such as lidocaine instillation, lidocaine injection to recurrent laryngeal nerve, botox injection and excision of false ventricle using CO2 laser. Recently, injection laryngoplasty is suggested that assists in more efficient phonation and voice therapy to MTD patients. A patient with intractable MTD underwent lidocaine injection and injection laryngoplasty showed improved voice quality and remained stable until postoperative 3 months without any complications.

Keyword

Intractable muscle tension dysphonia; Lidocaine injection; Injection laryngoplasty; 난치성 근긴장성 발성장애; 리도카인 주입술; 성대 주입술