Authors: JMPJ Breur FEA Udink ten Cate L Kapusta N Boramanand MI Cohen JE Crosson LJ Lubbers AH Friedman JI Brenner VL Vetter EJ Meijboom
Publish Date: 2006/08/23
Volume: 27, Issue: 5, Pages: 564-568
Abstract
Low heart rate is the predominantly used indication for pacemaker intervention in patients with isolated congenital atrioventricular block CAVB The aim of this study was to compare the difference in heart rates recorded with ECG and Holter monitoring between paced PM and nonpaced NPM patients with isolated CAVB before pacemaker implantation to identify additional predictors for future PM need Retrospective evaluation of atrial and ventricular rates electrocardiography and minimal and maximal Holter heart rates in 129 CAVB patients prior to PM implantation n = 93 was performed and results are expressed in V adjusted for age and sex The average V score for the atrial rate was 051 n = 50 in the PM group and 060 n = 22 in the NPM group notsignificant The average z score for the ventricular average rate was −091 n = 83 in the PM group and −093 n = 33 in the NPM group notsignificant Minimal heart rate was −094 n = 61 in the PM group and −086 n = 25 in the NPM group not significant Maximal heart rate was −096 n = 61 in the PM group and −095 n = 26 in the NPM group not significant Initial recordings of the average heart rate and the minimal and maximal heart rate recorded during Holter monitoring do not seem to predict future pacemaker need in patients with CAVB Studies with exercise stress tests are needed to confirm these findings
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