Recurrent Laryngeal Nerve Injury Near the Nerve Entry Point in Total Endoscopic Thyroidectomy: A Retrospective Cohort Study
Nan Liu, Bo Chen, Luchuan Li, Qingdong Zeng, Lei Sheng, Bin Zhang, Weili Liang, Bin Lv Department of Thyroid Surgery, General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, People’s Republic of ChinaCorrespondence: Bin LvDepartment of Thyroid Surgery, General Surgery, Qilu Hospital...
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| Autores principales: | , , , , , , , |
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| Formato: | article |
| Lenguaje: | EN |
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Dove Medical Press
2021
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| Materias: | |
| Acceso en línea: | https://doaj.org/article/ea007a668e804b98bd633599bea11bd8 |
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| Sumario: | Nan Liu, Bo Chen, Luchuan Li, Qingdong Zeng, Lei Sheng, Bin Zhang, Weili Liang, Bin Lv Department of Thyroid Surgery, General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, People’s Republic of ChinaCorrespondence: Bin LvDepartment of Thyroid Surgery, General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, People’s Republic of ChinaEmail lvbin@sdu.edu.cnBackground: Recurrent laryngeal nerve injury (RLNI) still occurs in total endoscopic thyroidectomy (TET) by using intraoperative neuromonitoring (IONM). As the region where most injuries occur, more attention should be paid to RLNI near the nerve entry point (NEP) in TET.Materials and Methods: This cohort study collected retrospectively data from 415 patients who underwent TET between February 2012 and December 2019. The functions of the recurrent laryngeal nerve (RLN) in TET were recorded by IONM. The patients with RLNI near the NEP were followed up by laryngoscopies. The demographic and clinical characteristics, the mechanisms of RLNI, and the outcomes of RLNI were recorded and analyzed.Results: There were a total of 444 at-risk nerves in 405 patients were analyzed. The incidence of RLNI near the NEP was 7.9%. RLNs with extralaryngeal branches were more likely to be injured near the NEP (P = 0.037). The incidences of different types of RLNI, in order of frequency, were 68.8% for thermal injury (n = 22), 28.1% for traction/compression injury (n = 9), and 3.1% for transverse injury (n = 1). A total of 93.8% (n = 30) of RLNI patients had complete recovery of vocal cord activity function.Conclusion: The extralaryngeal branch was a risk factor for RLNI near the NEP in TET. Thermal injury caused by an ultrasonic scalpel was the most common cause of RLNI near the NEP. Most RLNIs near the NEP would eventually recover.Keywords: thyroid surgery, total endoscopic thyroidectomy, recurrent laryngeal nerve injury, intraoperative neuromonitoring, recovery time |
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