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Prevalence of Atrial Fibrillation in Pacemaker Patients
Costa, Mario Augusto Cray da; Santos, Jorge Felipe do Lago Pereira dos; Schafranski, Marcelo Derbli.
  • Costa, Mario Augusto Cray da; Universidade Estadual de Ponta Grossa. Ponta Grossa. BR
  • Santos, Jorge Felipe do Lago Pereira dos; Universidade Estadual de Ponta Grossa. Ponta Grossa. BR
  • Schafranski, Marcelo Derbli; Universidade Estadual de Ponta Grossa. Ponta Grossa. BR
Int. j. cardiovasc. sci. (Impr.) ; 35(3): 373-381, May-June 2022. tab, graf
Article in English | LILACS | ID: biblio-1375643
ABSTRACT
Abstract

Background:

Current pacemakers allow for the continuous recording of the occurrence of arrhythmic events. One of the most frequent arrhythmias after implantation of a device is atrial fibrillation (AF), an important risk factor for embolic events. The frequency of this arrhythmia in pacemaker patients has not been widely studied.

Objectives:

This study aimed to evaluate the prevalence, incidence, and predictors of the occurrence of AF in patients with double-chamber pacemakers and without a history of atrial fibrillation prior to implantation.

Methods:

A dynamic, retrospective, and prospective cohort study was carried out with 186 patients undergoing biannual follow-up of the double-chamber pacemaker, without previous AF, in a single service, between 2016 and 2018. Clinical data were collected from the medical records and the telemetry of the device and the prevalence, incidence rate, relative risk by univariate analysis (by chi-square), and risk ratio were calculated by multivariate analysis (by Cox regression); values of p<0.05 were considered significant.

Results:

There was a prevalence of 25.3% FA, with an incidence of 5.64 cases / 100 persons-year. The median time for the development of arrhythmia was 27.5 months. Multivariate analysis identified 5 statistically significant predictors male gender, OR 2.54 [1.04-6.15]; coronary artery disease, OR 2.98 [1.20-7.41]; hypothyroidism, OR 3.63 [1.46-9.07]; prior heart surgery, OR 2.67 [1.01-7]; and left atrial enlargement, OR 2.72 [1.25-5.92].

Conclusions:

The prevalence and incidence of AF in this population are high. Risk factors for AF were male gender, coronary artery disease, hypothyroidism, prior heart surgery, and left atrial enlargement.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Pacemaker, Artificial / Atrial Fibrillation Type of study: Etiology study / Incidence study / Observational study / Prevalence study / Prognostic study / Risk factors Limits: Female / Humans / Male Language: English Journal: Int. j. cardiovasc. sci. (Impr.) Journal subject: Cardiology Year: 2022 Type: Article Affiliation country: Brazil Institution/Affiliation country: Universidade Estadual de Ponta Grossa/BR

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Full text: Available Index: LILACS (Americas) Main subject: Pacemaker, Artificial / Atrial Fibrillation Type of study: Etiology study / Incidence study / Observational study / Prevalence study / Prognostic study / Risk factors Limits: Female / Humans / Male Language: English Journal: Int. j. cardiovasc. sci. (Impr.) Journal subject: Cardiology Year: 2022 Type: Article Affiliation country: Brazil Institution/Affiliation country: Universidade Estadual de Ponta Grossa/BR