title: Subcutaneous hemorrhage in a patient receiving anticoagulant therapy: an unusual EMG complication.
abstract: A 64-year-old man on chronic anticoagulant therapy underwent electromyography (EMG) and six days later noted a 13 X 8cm ecchymotic region on the right flank and a smaller area of ecchymosis along the lower spine. He was found to have significant subcutaneous bleeding (hematocrit decreased from 43% to 29%), which required a two-unit blood transfusion. In light of the location of the hematoma and the temporal relationship to the EMG, it is proposed that this unusual case represents a significant complication of a usually benign procedure. Clinicians need to be aware of the possibility of such a complication in the anticoagulated patient and of the need for a risk-benefit decision prior to EMG.
mesh_terms: D004438:Ecchymosis / Q000209:etiology*; D004576:Electromyography / Q000009:adverse effects*; D006322:Heart Aneurysm / Q000188:drug therapy; D006406:Hematoma / Q000209:etiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D013927:Thrombosis / Q000188:drug therapy; D013997:Time Factors; D014859:Warfarin / Q000009:adverse effects*
chemical_list: D014859:Warfarin