• A&A practice · Aug 2022

    Case Reports

    Carbon Monoxide Poisoning Presenting With Neurological Signs During Hysteroscopic Bipolar Surgery With Spinal Anesthesia: Two Case Reports.

    • Pierre-Antoine Oillic, Emma Trillaud, Yannis Bornemann, Raphaèle Rigolot, Hervé Fernandez, and Dan Benhamou.
    • From the Université Paris-Saclay, AP-HP, Department of Anesthesiology, Critical Care Medicine and Peri Operative Medicine, Hôpital Universitaire Bicêtre, Le Kremlin-Bicêtre, France.
    • A A Pract. 2022 Aug 1; 16 (8): e01602.

    AbstractLoss of consciousness suddenly occurred in 2 healthy and nonsmoking patients undergoing bipolar resection for intramural myomas under spinal anesthesia. One patient had nystagmus and emesis. In both cases, neurological symptoms were of short duration. All other usual causes were excluded. Initial venous carboxyhemoglobin concentrations were 7% and 23%, respectively. These concentrations decreased within several hours with oxygen therapy. Carbon monoxide (CO) is a product of diathermic vaporization and may enter the blood and cause intraoperative cardiovascular symptoms. These are the first cases with neurological presentation. The CO poisoning was probably diagnosed early because the patients were awake.Copyright © 2022 International Anesthesia Research Society.

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