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¹Parc de Salut Mar, Department of Neurology, Barcelona, Spain
²Parc de Salut Mar, Department of Neurosurgery, Barcelona, Spain DOI : 10.5137/1019-5149.JTN.11387-14.1 Hydrogen peroxide (H₂O₂) is commonly used as a haemostatic agent in all type of surgeries. Some adverse effects have been described related to its use. However, only very few cases are published in the literature of a stroke associated with the application of this agent directly to the brain. We present the case of a patient operated on for a right insular tumor with the assistance of intraoperative neurophysiological monitoring who developed a postoperative severe hemiparesis caused by a stroke in left middle cerebral artery territory due to the irrigation with H₂O₂. Based on this case, we recommend avoiding the H₂O₂ irrigation for hemostasis in surgery for brain tumors when vascular structures are exposed. Keywords : Brain tumors, Hemostasis, Hydrogen peroxide, Intraoperative neurophysiological monitoring, Stroke