Clin Exp Otorhinolaryngol.  2021 Feb;14(1):131-136. 10.21053/ceo.2019.01900.

Application of an Intraoperative Neuromonitoring System Using a Surface Pressure Sensor in Parotid Surgery: A Rabbit Model Study

Affiliations
  • 1Department of Otolaryngology-Head and Neck Surgery, Pusan National University Yangsan Hospital, College of Medicine and Research Institute for Convergence of Biomedical Science and Technology, Yangsan, Korea
  • 2Department of Otolaryngology-Head and Neck Surgery, Pusan National University Hospital, College of Medicine and Medical Research Institute, Busan, Korea
  • 3Department of Biomedical Engineering, Pusan National University Hospital, College of Medicine and Medical Research Institute, Busan, Korea

Abstract


Objectives
. Facial nerve monitoring (FNM) can be used to identify the facial nerve, to obtain information regarding its course, and to evaluate its status during parotidectomy. However, there has been disagreement regarding the efficacy of FNM in reducing the incidence of facial nerve palsy during parotid surgery. Therefore, instead of using electromyography (EMG) to identify the location and state of the facial nerve, we applied an intraoperative neuromonitoring (IONM) system using a surface pressure sensor to detect facial muscle twitching. The objective of this study was to investigate the feasibility of using the IONM system with a surface pressure sensor to detect facial muscle twitching during parotidectomy.
Methods
. We evaluated the stimulus thresholds for the detection of muscle twitching in the orbicularis oris and orbicularis oculi, as well as the amplitude and latency of EMG and the surface pressure sensor in 13 facial nerves of seven rabbits, using the same stimulus intensity.
Results
. The surface pressure sensor detected muscle twitching in the orbicularis oris and orbicularis oculi in response to a stimulation of 0.1 mA in all 13 facial nerves. The stimulus threshold did not differ between the surface pressure sensor and EMG.
Conclusion
. The application of IONM using a surface pressure sensor during parotidectomy is noninvasive, reliable, and feasible. Therefore, the IONM system with a surface pressure sensor to measure facial muscle twitching may be an alternative to EMG for verifying the status of the facial nerve.

Keyword

Intraoperative Neurophysiological Monitoring; Surface Pressure Sensor; Electromyography; Facial Nerve; Parotidectomy
Full Text Links
  • CEO
Actions
Cited
CITED
export Copy
Close
Share
  • Twitter
  • Facebook
Similar articles
Copyright © 2022 by Korean Association of Medical Journal Editors. All rights reserved.     E-mail: koreamed@kamje.or.kr