Int J Thyroidol.  2018 Nov;11(2):109-116. 10.11106/ijt.2018.11.2.109.

Development of the Novel Intraoperative Neuromonitoring for Thyroid Surgery

• Sung ES
• Lee BJ

• KMID: 2448980
• DOI: http://doi.org/10.11106/ijt.2018.11.2.109

Abstract

It is very important to identify recurrent laryngeal nerve (RLN) and prevent RLN injury during thyroid surgery. The intraoperative neuromonitoring (IONM) for the prevention of RLN injury is a useful method because it can identify the location and status of RLN and predict postoperative vocal cord function easily. The IONM consists of a stimulating side that applies electrical stimulation to the nerve and a recording side that measures the surface electromyography (EMG) of the vocal cord muscle through electrode endotracheal tube. The nerve stimulator and surgical dissector are separate instruments. So, during IONM for the prevention of the RLN injury in conventional, endoscopic, or robotic thyroid surgery, repeated exchanging between surgical instruments and the nerve stimulator is inconvenient and time consuming. On the recording side, the accuracy of the electrode endotracheal tube which measures the EMG of the vocalis muscle can be affected by contact with between electrode and vocal fold and position change of patient. We would like to introduce recent several researches to overcome the current limitations of IONM.

Keyword

Thyroid surgery; Intraoperative neuromonitoring; Recurrent laryngeal nerve; Attachable nerve stimulator; Surface bio-pressure sensor

MeSH Terms

Electric Stimulation
Electrodes
Electromyography
Humans
Laryngeal Muscles
Methods
Recurrent Laryngeal Nerve
Surgical Instruments
Thyroid Gland*
Vocal Cords