• A J Engwall, A Blache, A Lintner, A Bright, and S Kahn.
• Michigan State University, Lansing, Michigan, USA.
• Ann Burns Fire Disasters. 2021 Sep 30; 34 (3): 240-244.

AbstractHydroxocobalamin has been administered in the United States since 2006 by first responders and burn centers as a safe antidote for cyanide toxicity, a serious complication of smoke inhalation. There are no current contraindications to the use of this rescue measure. A recent retrospective French publication reported a potential correlation between hydroxcobalamin administration and acute mesenteric ischemia (AMI) in critically ill burn and inhalation injury patients. The purpose of this study is to characterize the risk of AMI related to hydroxocobalamin. A retrospective review of hydroxocobalamin administration among adult burn patients was conducted at a regional burn center over a 2-year period. Injury characteristics, demographics, and outcomes including presence of mesenteric ischemia (defined as presence of pneumatosis or perforation on CT scan or necrotic bowel on laparotomy) were recorded. Of 17 confirmed inhalation injuries, patients had a median (interquartile range) age, total body surface area (TBSA), and abbreviated burn severity (ABSI) index as follows: 60 (45, 65 IQR), 8.5 (1.8, 39 IQR), and 6 (5,7 IQR). Inhalation injury was diagnosed with bronchoscopy, carboxyhemoglobin, or clinical suspicion. Eighty-two percent of those with bronchoscopy had an inhalation grade of 2 or greater. None (0%) of the patients showed signs of mesenteric ischemia, tube feeding intolerance, pneumatosis/perforation on CT, or necrotic bowel on laparotomy. Aware of the study limitations, we conclude that hydroxocobalamin does not increase risk for AMI.Copyright © 2021 Euro-Mediterranean Council for Burns and Fire Disasters.

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