Application of Novel Intraoperative Neuromonitoring System Using an Endotracheal Tube With Pressure Sensor During Thyroid Surgery: A Porcine Model Study

Clinical and Experimental Otorhinolaryngology
Eui-Suk SungByung-Joo Lee

Abstract

The loss of signal during intraoperative neuromonitoring (IONM) using electromyography (EMG) in thyroidectomy is one of the biggest problems. We have developed a novel IONM system with an endotracheal tube (ETT) with an attached pressure sensor instead of EMG to detect laryngeal twitching. The aim of the present study was to investigate the feasibility and reliability of this novel IONM system using an ETT with pressure sensor during thyroidectomy in a porcine model. We developed an ETT-attached pressure sensor that uses the piezoelectric effect to measure laryngeal muscle twitching. Stimulus thresholds, amplitude, and latency of laryngeal twitching evaluated using the pressure sensor were compared to those measured using transcartilage needle EMG. The measured amplitude changes by EMG and the pressure sensor during recurrent laryngeal nerve (RLN) traction injury were compared. No significant differences in stimulus threshold intensity between EMG and the pressure sensor were observed. The EMG amplitude detected at 0.3 mA, increased with increasing stimulus intensity. When the stimulus was more than 1.0 mA, the amplitude showed a plateau. In a RLN traction injury experiment, the EMG amplitude did not recover even 20 minutes aft...Continue Reading

References

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Feb 29, 2008·World Journal of Surgery·H DralleUNKNOWN German IONM Study Group
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May 21, 2013·European Archives of Oto-rhino-laryngology : Official Journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : Affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery·Alvaro SanabriaAlfio Ferlito
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Aug 18, 2017·World Journal of Surgery·Eui-Suk SungByung-Joo Lee
Nov 5, 2017·International Journal of Surgery·Sung-Chan ShinByung-Joo Lee
Nov 22, 2017·Otolaryngology--head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery·Eui-Suk SungByung-Joo Lee
Jul 22, 2018·Thyroid : Official Journal of the American Thyroid Association·Che-Wei WuI-Cheng Lu
Sep 27, 2018·Thyroid : Official Journal of the American Thyroid Association·Che-Wei WuPi-Ying Chang

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