How to Preserve Laryngeal Nerve for Preventing Post-Thyroidectomy Voice Change.
10.11106/cet.2014.7.2.153
- Author:
Ji Won KIM
1
;
Seung Ho CHOI
Author Information
1. Department of Otolaryngology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea. shchoi@amc.seoul.kr
- Publication Type:Review
- Keywords:
Thyroidectomy;
Recurrent laryngeal nerve;
External branch of superior laryngeal nerve
- MeSH:
Drainage;
Edema;
Humans;
Laryngeal Nerves*;
Laryngoscopy;
Recurrent Laryngeal Nerve;
Stroboscopy;
Thyroid Gland;
Thyroidectomy;
Traction;
Vocal Cords;
Voice*
- From:Journal of Korean Thyroid Association
2014;7(2):153-158
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
After thyroid surgery, voice change occurs very frequently, in more than 30% of cases. In addition to injury to the recurrent laryngeal nerve (RLN) or the external branch of superior laryngeal nerve (EBSLN), vocal fold edema due to excessive tracheal traction or disrupted laryngeal venous drainage, and laryngotracheal fixation following injury to extralaryngeal musculature can cause post-thyroidectomy voice change. Although complete recovery can be expected mostly in 3 months, dysphonic patients should be evaluated pre and postoperatively by laryngoscopy or laryngeal stroboscopy. The present review discusses the evaluation of voice change, the anatomy of RLN and EBSLN and common cause of voice change after thyroid surgery. Furthermore, we represent how to preserve RLN, SLN including intraoperative nerve monitoring.
