• Soban Ahmad, Sundus Ikram, and Bryan K Dunn.
• Department of Internal Medicine, East Carolina University, Greenville, North Carolina, USA. Electronic address: Ahmads20@ecu.edu.
• Am. J. Med. Sci. 2022 Mar 1; 363 (3): 273-278.

AbstractWernicke's encephalopathy (WE) is an acute neurological disorder caused by thiamine deficiency that is frequently missed in non-alcoholic patients. Coma and cardiomyopathy are uncommon presentations of WE that have been rarely reported in the literature. We report the case of a 36-year-old male with a known history of schizophrenia who presented with coma and vasopressor refractory hypotension. Initial computed tomography (CT) of the head at admission was unremarkable. Transthoracic echocardiogram showed diffuse myocardial hypokinesia with a left ventricular ejection fraction of 40-45%. Due to persistent encephalopathy, a repeat non-enhanced CT head was obtained on the second day of hospital admission followed by magnetic resonance imaging (MRI) of brain that showed findings suggestive of WE. The patient was immediately started on high-dose intravenous (IV) thiamine therapy. Although his hemodynamic parameters significantly improved following thiamine replacement, he did not show signs of neurological recovery and resulted in a dismal outcome. This case illustrates the importance of early recognition of thiamine deficiency in critically ill patients to prevent fatal outcomes. Immediate parenteral thiamine administration should be considered in all patients presenting with coma, cardiomyopathy, and refractory hypotension regardless of their body mass index, and alcohol use status.Copyright © 2021 Southern Society for Clinical Investigation. Published by Elsevier Inc. All rights reserved.

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