Synchronized versus nonsynchronized electrocardioversion.
D000328:Adult; D004554:Electric Countershock / Q000009:adverse effects*; D004562:Electrocardiography; D006333:Heart Failure / Q000628:therapy; D006801:Humans; D008297:Male; D008875:Middle Aged; D013610:Tachycardia / Q000628:therapy; D014693:Ventricular Fibrillation / Q000209:etiology*