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  • Title: Carbon monoxide poisoning: a case report of reversible cardiormyopathy.
    Author: Swank G, Jain AC, Morise AP, Schmidt S.
    Journal: W V Med J; 2004; 100(6):228-31. PubMed ID: 15777062.
    Abstract:
    Acute carbon monoxide poisoning is the most common cause of poison-related deaths in the U.S. A 21-year-old white woman was referred to Ruby Memorial Hospital after exposure to carbon monoxide (CO) from a faulty furnace. She developed acute weakness, dyspnea, nausea and vomiting. An electrocardiogram revealed sinus tachycardia, non-specific ST-T wave abnormalities, and a prolonged QTc interval. The chest X-ray revealed pulmonary edema and the 2-D echocardiography revealed decreased left ventricular systolic function with an ejection fraction of 25%. She was treated with high-flow oxygen and supportive medical therapy with complete resolution of the left ventricular dysfunction six weeks later. She has been followed for over one year without medical therapy and without recurrence of her symptoms. This case illustrates that the depressant effect of CO poisoning on the myocardium can be reversed in the short term with supportive medical therapy and recovery sustained in the long term without medical therapy.
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