Implantation of atrial synchronous pacemaker with transvenous electrodes after surgery for hypertrophic subaortic stenosis.
An atrial synchronous ventricular pacemaker was implanted in a patient with hypertrophic subaortic stenosis who developed permanent complete atrioventricular block during left ventriculomyotomy and myectomy. In spite of partial amputation of the right atrial appendage, performed during cannulation for cardiopulmonary bypass, a transvenous pacing lead with a helically coiled tip was easily attached to the remnant of the appendage and satisfactory atrial sensing was achieved.
D002312:Cardiomyopathy, Hypertrophic / Q000601:surgery*; D004562:Electrocardiography; D004567:Electrodes, Implanted; D005260:Female; D006325:Heart Atria / Q000601:surgery*; D006327:Heart Block / Q000150:complications / Q000209:etiology*; D006801:Humans; D007431:Intraoperative Complications; D008875:Middle Aged; D010138:Pacemaker, Artificial