• World Neurosurg · May 2024

    Intraoperative brainstem auditory evoked potentials and postoperative nausea and vomiting after microvascular decompression.

    • Kyeong-O Go, So Young Ji, Ji-Eyon Kwon, Kihwan Hwang, Minjae Cho, Byung Hwa Park, Kyung Seok Park, Jong-Min Kim, Chang-Hoon Koo, Young-Tae Jeon, Sanghon Park, Jung-Hee Ryu, and Jung Ho Han.
    • Department of Neurosurgery, Gyeongsang National University Hospital, Jinju-si, Gyengsangnam-Do, South Korea.
    • World Neurosurg. 2024 May 1; 185: e1153e1159e1153-e1159.

    BackgroundWe performed this study to investigate the effect of intraoperative brainstem auditory evoked potential (IBAEP) changes on the development of postoperative nausea and vomiting (PONV) after microvascular decompression (MVD) for neurovascular cross compression.MethodsA total of 373 consecutive cases were treated with MVD. The use of rescue antiemetics after surgery was used as an objective indicator of PONV. IBAEP monitoring was routinely performed in all.ResultsThe use of rescue antiemetics was significantly associated with female sex (OR = 3.427; 95% CI, 2.077-5.654; P < 0.001), PCA use (OR = 3.333; 95% CI, 1.861-5.104; P < 0.001), and operation time (OR = 1.017; 95% CI, 1.008-1.026; P < 0.001). A Wave V peak delay of more than 1.0 milliseconds showed a significant relation with the use of rescue antiemetics (OR = 1.787; 95% CI, 1.114-2.867; P = 0.016) and a strong significant relation with the use of rescue antiemetics more than 5 times (OR = 2.426; 95% CI, 1.372-4.290; P = 0.002).ConclusionsA wave V peak delay of more than 1.0 milliseconds might have value as a predictor of PONV after MVD. More detailed neurophysiological studies will identify the exact pathophysiology underlying PONV after MVD.Copyright © 2024. Published by Elsevier Inc.

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