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Atrioventricular pacemaker. Incidence and causes of reprogramming in long-term follow-up

By Martino Martinelli Fº, Sylton de Arruda Melo, Silvana A. D. Nishióka, Anísio A. A. Pedrosa, Sérgio Freitas de Siqueira, Roberto Costa and Eduardo Sosa

Abstract

OBJECTIVE: To assess the incidence of problems requiring reprogramming of atrioventricular pacemakers in a long-term follow-up, and also the causes for this procedure. METHODS: During the period from May '98 to December '99, 657 patients were retrospectively studied, An actuarial curve for the event reprogramming of the stimulation mode was drawn. RESULTS: The follow-up period ranged from 12 to 178 months (mean = 81 months). Eighty-two (12.4%) patients underwent reprogramming of the stimulation mode as follows: 63 (9.5%) changed to VVI,(R/C); 10 (1.5%) changed to DVI,C; 6 (0.9%) changed to VDD,C; and 3 (0.5%) changed to DOO. The causes for the reprogramming were as follows: arrhythmia conducted by the pacemaker in 39 (37.6%) patients; loss of atrial sensitivity or capture, or both, in 39 (38.6%) patients; and microfracture of atrial electrode in 5 (4.9%) patients. The stimulation mode reprogramming free probability after 15 years was 58%. CONCLUSION: In a long-term follow-up, the atrioventricular pacemaker provided a low incidence of complications, a high probability of permanence in the DDD,C mode, and the most common cause of reprogramming was arrhythmia conducted by the pacemaker

Topics: atrioventricular pacemaker, reprogramming, DDD,Cmode, Diseases of the circulatory (Cardiovascular) system, RC666-701, Specialties of internal medicine, RC581-951, Internal medicine, RC31-1245, Medicine, R, DOAJ:Cardiovascular, DOAJ:Medicine (General), DOAJ:Health Sciences
Publisher: Sociedade Brasileira de Cardiologia (SBC)
Year: 2001
DOI identifier: 10.1590/S0066-782X2001000100002
OAI identifier: oai:doaj.org/article:b7f8c429bda2407c8eef557a4fbbf1bd
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