Development of a Novel Intraoperative Neuromonitoring System Using a Surface Pressure Sensor to Detect Muscle Movement: A Rabbit Model Study
- Author:
Eui Suk SUNG
1
;
Jin Choon LEE
;
Sung Chan SHIN
;
Hyun Geun KWON
;
Min Sik KIM
;
Dong Jo KIM
;
Jung Hoon RO
;
Byung Joo LEE
Author Information
- Publication Type:Original Article
- Keywords: Intraoperative Neurophysiological Monitoring; Surface Pressure Sensor; Electromyography; Recurrent Laryngeal Nerve; Thyroidectomy
- MeSH: Electromyography; Intraoperative Neurophysiological Monitoring; Models, Animal; Rabbits; Recurrent Laryngeal Nerve; Sciatic Nerve; Thyroid Gland; Thyroidectomy
- From:Clinical and Experimental Otorhinolaryngology 2019;12(2):217-223
- CountryRepublic of Korea
- Language:English
- Abstract: OBJECTIVES: False-negative or false-positive responses in intraoperative neuromonitoring (IONM) using electromyography (EMG) in thyroid surgery pose a challenge. Therefore, we developed a novel IONM system that uses a surface pressure sensor instead of EMG to detect muscle twitching. This study aimed to investigate the feasibility and safety of a new IONM system using a piezo-electric surface pressure sensor in an experimental animal model. METHODS: We developed the surface pressure sensor by modifying a commercial piezo-electric sensor. We evaluated the stimulus thresholds to detect muscle movement, as well as the amplitude and latency of the EMG and surface pressure sensor in six sciatic nerves of three rabbits, according to the stimulus intensity. RESULTS: The surface pressure sensor detected the muscle movements in response to a 0.1 mA stimulation of all six sciatic nerves. There were no differences in the thresholds of stimulus intensity between the surface pressure sensor and EMG recordings to detect muscle movements. CONCLUSION: It is possible to measure the change in surface pressure by using a piezo-electric surface pressure sensor instead of EMG to detect muscle movement induced by nerve stimulation. The application of IONM using a piezo-electric surface pressure sensor during surgery is noninvasive, safe, and feasible. Measuring muscle twitching to identify the state of the nerves using the novel IONM system can be an alternative to recording of EMG responses.
