Effectiveness of Intraoperative Neuromonitoring According to the Mechanism of Recurrent Laryngeal Nerve Injury During Thyroid Surgery
10.21593/kjhno/2020.36.1.9
- Author:
Sung-Chan SHIN
1
;
Byung-Joo LEE
Author Information
1. Department of Otorhinolaryngology, Head and Neck Surgery, Pusan National University School of Medicine, Pusan National University and Biomedical Research Institute, Pusan National University Hospital, Busan, Korea
- Publication Type:Review Article
- From:
Korean Journal of Head and Neck Oncology
2020;36(1):9-14
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
Visual identification of recurrent laryngeal nerve (RLN) is considered as a gold standard of RLN preservation during thyroid surgery. Intraoperative neuromonitoring (IONM) is classified into the intermittent type and continuous type and helps surgeons identify the functional integrity of RLN and predict the postoperative vocal cord function. RLN injury during thyroid surgery is associated with tumor factors and surgeon factors. Tumor factors mean such as direct tumor invasion, adhesion of RLN to the tumor, and compression by a large thyroid tumor. Surgeon factors include nerve transection, stretching, thermal injury, and ligation injury. A recent meta-analysis reported that the IONM could reduce the RLN injury. Considering various nerve injury mechanism, we suggest that using both I-ONM and C-IONM together is more effective method in preventing nerve damage than using I-IONM alone.
