C. Lillehei, R. Sellers, R. S. Eliot
Jul 1, 1967
American journal of surgery
Abstract The seven year clinical experience in the use of implanted cardiac pacemakers at the University of Minnesota Hospitals is reported. One hundred patients have had implanted cardiac pacemakers inserted between January 1960 and December 1966. Indication for the use of the pacemaker has been the presence of chronic complete heart block except in three patients in whom complete block was intermittent but also incapacitating. In twenty-six patients complete heart block was secondary to intracardiac surgical procedures. Fifty-four patients had complete heart block believed to be secondary to arteriosclerotic heart disease in one form or another. There were ten patients in whom chronic complete heart block developed coincidental with an acute myocardial infarction. Five patients were thought to have complete heart block secondary to myocarditis. Four patients had congenital heart block. The duration of follow-up study in these patients has been one to seventy-one months with an average observation time of twenty-five months. Sixty-three patients are still living. There were twelve early postoperative deaths and twenty-five late deaths. Pacemaker therapy significantly reduced systolic hypertension in these patients.