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Intraoperative neuromonitoring for thyroid malignancy surgery: technical notes and results from a retrospective series

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Abstract

This study evaluates the role of intraoperative neuromonitoring (IONM) for thyroidectomy performed in cancer patients with emphasis on postoperative recurrent laryngeal nerve paralysis (RLNP). The study is a retrospective series comprising 76 thyroidectomy alone (control group) versus 76 thyroidectomy with IONM. In the control group the laryngeal nerves have been identified by visualization solely. In the IONM group both vagal nerve and RLN have been localized and monitored during thyroid resection. The main surgical outcome was RLN morbidity. All patients undergo pre- and postoperative laryngeal examination. Overall RLN morbidity was 3.9% in the IONM group and 9.2% in the control group (P < 0.05). There have been two cases of permanent RLNP (2.6%) in the control group and one in the IONM group (1.3%), one case of bilateral RLN injury in the control group. The incidences of temporary RLNP in the IONM group have been 2.6 versus 6.5% in the control group. IONM is an effective procedure in thyroid cancer patients.

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Acknowledgments

Supported in part by grants from the Italian Ministry of Education, University and Research (FAR, Project 2007 “Il sistema di monitoraggio del nervo laringeo ricorrente e della branca sterna del nervo laringeo superiore durante interventi di tiroidectomia mininvasiva”). Written consent of the patients was obtained for publication of this report.

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Correspondence to Gianlorenzo Dionigi.

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Frattini, F., Mangano, A., Boni, L. et al. Intraoperative neuromonitoring for thyroid malignancy surgery: technical notes and results from a retrospective series. Updates Surg 62, 183–187 (2010). https://doi.org/10.1007/s13304-010-0036-5

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