Abstract
Letters3 March 2009Carbon Dioxide–Induced Narcosis due to Dry Ice Exposure in a Patient With Sleep ApneaJerrold B. Leikin, MD, Joseph F. Mitton, MD, and Thomas Freedom, MDJerrold B. Leikin, MDFrom Glenbrook Hospital, Glenview, IL 60026.Search for more papers by this author, Joseph F. Mitton, MDFrom Glenbrook Hospital, Glenview, IL 60026.Search for more papers by this author, and Thomas Freedom, MDFrom Glenbrook Hospital, Glenview, IL 60026.Search for more papers by this authorAuthor, Article, and Disclosure Informationhttps://doi.org/10.7326/0003-4819-150-5-200903030-00024 SectionsAboutFull TextPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinkedInRedditEmail Background: Dry ice is solid carbon dioxide. In enclosed spaces, evaporated carbon dioxide can displace oxygen to produce asphyxia.Objective: To report a case of carbon dioxide–induced asphyxia after exposure to 500 lb of dry ice in an enclosed minivan.Case Report: A 70-year-old, obese, nonsmoking male with a history of type 2 diabetes mellitus, hypertension, and obstructive sleep apnea for 3 years (treated with home continuous positive airway pressure) presented to an emergency department after being found unconscious in his minivan. He was revived with oxygen. The patient said that before losing consciousness he was “hyperventilating” but could not ...
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