Pacemaker-induced ventricular tachycardia. Reversion to normal sinus rhythm by carotid sinus massage.
D002346:Carotid Sinus; D004562:Electrocardiography; D005260:Female; D006352:Heart Ventricles / Q000294:innervation; D006801:Humans; D008405:Massage; D008875:Middle Aged; D010138:Pacemaker, Artificial / Q000009:adverse effects*; D010275:Parasympathetic Nervous System; D013610:Tachycardia / Q000209:etiology* / Q000628:therapy