Long-term Survival Of Elderly Patients After Pacemaker Implatation

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Abstract

The follow-up of 80 patients above the age of 70 years with implanted pacemakers is described. These patients were the most advanced in age from a total group of 150 with implanted pacemakers. Their ages ranged from 70 to 87 years, with an average of 75.4 years; 50 were male and 30 were female. An epicardial electrode was implanted in 13 patients and an endocardial electrode in 67. The pacemaker was implanted in 76 patients for symptomatic atrioventricular block and in four patients for sick-sinus syndrome. Two patients (2.5 per cent) died during the postoperative period and 19 patients within a period of 3 months to 6 years after the implantation. The survival rates were: 1 year, 90.0 per cent; 2 years, 82.1 per cent; 3 years, 74.1 per cent; 4 years, 67.2 per cent; 5 years, 58.3 percent. These survival rates were surprisingly similar, for the first 3 years of follow-up, to those of our and others' previous studies, which included all age groups. The survival rates in the most advanced age groups decreased in comparison only in fourth and fifth years after the implantation. There was no evidence of new episodes of myocardial infarction among this group of patients during the follow-up period. We conclude that even in patients of the most advanced age groups the implantation of an endocardial pacemaker significantly prolongs life, improves its quality, and this at a low operative risk.

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