Related Experiment Video
Updated: Mar 30, 2026
Identification and Protection of the Recurrent Laryngeal Nerve during Transoral Robotic Thyroidectomy
Published on: October 24, 2025
The Efficacy of Intraoperative Neuromonitoring During Robotic Thyroidectomy: A Prospective, Randomized Case-Control
Hye Yoon Lee1, Ju-Young Lee2, Gianlorenzo Dionigi3
11 Department of Surgery, Korea University College of Medicine , Seoul, Korea.
Background:
This study evaluates the efficacy of intraoperative neuromonitoring (IONM) on voice performance in robotic thyroidectomy.
Materials And Methods:
The study was based on a prospective randomized series. Between June 2011 to September 2012, 50 patients with thyroid cancer who underwent robotic thyroidectomy were enrolled. The IONM and non-IONM groups consisted of 25 patients each. Voice Handicap Index (VHI), voice range profile (VRP), and laryngoscopy were used to assess voice function before surgery and at 2 weeks, 3 months, and 6 months after the operation.
Results:
No palsy was diagnosed by laryngoscopy in either group. VHI values were similar in both groups. In the IONM group, there was significantly earlier recovery in VRP minimum intensity compared with the non-IONM group. However, there were no differences of mean change of VRP maximum frequency and intensity or minimum frequency between the two groups.
Conclusions:
We found that IONM facilitated more rapid recovery of voice function, especially in VRP minimum intensity, during robotic thyroid surgery.
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