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Electromyography-endotracheal tube (EMG-ET) use for intubation with the design of the semirigid and curved polyvinyl chloride tube allowing for easier intubation. Bipolar electrodes are placed above the inflatable cuff, with an alignment gap of 2 cm. A laryngoscope should be used to verify that the EMG-ET has been positioned correctly. The alignment gap should be placed at the vocal cord level. The purple anterior midline, printed on the EMG-ET, should be aligned with the patient's anterior. The cuff should be inflated to prevent migration of the EMG-ET. The red and blue leads should be connected to a right and left monitoring channel for detection of the free-run EMG from the recurrent laryngeal nerve. *Bipolar electrodes.

Electromyography-endotracheal tube (EMG-ET) use for intubation with the design of the semirigid and curved polyvinyl chloride tube allowing for easier intubation. Bipolar electrodes are placed above the inflatable cuff, with an alignment gap of 2 cm. A laryngoscope should be used to verify that the EMG-ET has been positioned correctly. The alignment gap should be placed at the vocal cord level. The purple anterior midline, printed on the EMG-ET, should be aligned with the patient's anterior. The cuff should be inflated to prevent migration of the EMG-ET. The red and blue leads should be connected to a right and left monitoring channel for detection of the free-run EMG from the recurrent laryngeal nerve. *Bipolar electrodes.

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Figure 1. Electromyography-endotracheal tube (EMG-ET) use for...
Intraoperative Monitoring of the Recurrent Laryngeal Nerve with Electromyography Endotracheal Tube in Anterior Cervical Discectomy and Fusion
Article
Full-text available
  • Sep 2022
Objective Recurrent laryngeal nerve (RLN) injury is common complication after anterior cervical discectomy and fusion (ACDF). This study aimed to evaluate RLN function in ACDF surgeries using intraoperative RLN monitoring with an electromyography-endotracheal tube (EMG-ET). Methods This study retrospectively compared the postoperative RLN injury o...
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... one method of IONM is EMG recordings of the CMAP. Therefore, the use of EMG-ET for intubation could be used intraoperatively to evaluate the activity of these muscles and detect RLN activity by direct contact of the exposed electrodes with the vocal cords ( Figure 1). The detection of CMAP can be used to recognize and help evaluate RLN function during surgery. 1 The RLN has been previously monitored with continuous EMG. ...

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Background: Intraoperative neuromonitoring is widely used in thyroid and parathyroid surgery to prevent unilateral and especially bilateral recurrent nerve paresis. Reference values for amplitude and latency for the recurrent laryngeal nerve and vagus nerve have been published. However, data quality measures that exclude errors of the underlying i...
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... A barium swallow study was conducted using barium contrast (barium The incidence of symptomatic RLN injury following ACSS surgery is approximately 8% 4 . Although some patients show some degree of recovery, some may not recover even after 5 years 12 . The RLN located in the trachea-esophageal groove is exposed if the surgical site is at or below C6. ...
... Despite being secured properly during surgery, the RLN may still be susceptible to direct injury or displaced by retracting the organs in the midline 13 . Furthermore, RLN may be injured due to overstretching during retraction by the cervical retractor or due to entrapment between the retractor and the endotracheal tube 12 . Therefore, appropriate evaluation to confirm the presence of RLN injury is important in patients who complain of symptoms such as hoarseness and dysphagia after ACSS. ...
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