Irregular tachycardia with wide complexes.
D000328:Adult; D001281:Atrial Fibrillation / Q000175:diagnosis / Q000628:therapy; D004554:Electric Countershock; D004562:Electrocardiography; D005260:Female; D006801:Humans; D014927:Wolff-Parkinson-White Syndrome / Q000175:diagnosis* / Q000628:therapy