Share Email Print Feedback Close. A lower body warming blanket was used. In preoperative area, local anesthetics are infiltrated through anterior rami of C2-C4 [ 6 ]. Intraoperative electrophysiological monitoring of the facial nerve: However, there are research results which report that electrical equipment, the specific clinical state, abnormal EEG patterns, and NMBA, as well as a number of other factors, can interfere with BIS monitoring [ 1 ]. An ultrasound guided local anesthetic injection method is recommended. Share cases and questions with Physicians on Medscape consult.
Facial nerve monitoring electrodes
Facial Nerve Monitoring * Dallas Ear Institute * Otology, Neurotology & Skull Base Surgery
Gives advance warning of severing or stretching or irritation of the facial nerve during ear surgery and parotid surgery to enhance patient safety. Subsequently, the NIM-2 was attached, and when electricity was applied to measure the resistance in the facial nerve monitoring mode, a severe artifact in the EEG was observed intermittently for 15 seconds on the BIS monitor. The risk of nerve injury increases in patients with anomalous RLN anatomy. Falsely increased bispectral index during endoscopic shoulder surgery attributed to interferences with the endoscopic shaver device. Such sinus tracts originate within the base third or apex fourth of the piriform fossa and should course between the superior laryngeal nerve and the RLN. Facial nerve outcome in acoustic tumor surgery.
Paired electrodes are placed in 2 facial muscle groups. Nonetheless, recognizing that almost half of the subjects with poor intraoperative electrophysiologic results had good long-term outcomes is important. If it is the tube, be sure to pay attention to the sound elicited with nerve stim. The minimum current needed to stimulate the facial nerve is different, and has been reported to range from 0. A complication of intraoperative facial nerve monitoring: