Abstract
This study sought to determine, using continuous electrocardiographic monitoring (CEM) pre-transcatheter aortic valve replacement (TAVR), the incidence and type of unknown pre-existing arrhythmic events (AEs) in TAVR candidates, and to evaluate the occurrence and impact of therapeutic changes secondary to the detection of AEs pre-TAVR. Scarce data exist on the arrhythmic burden of TAVR candidates (pre-procedure). This was a prospective study including 106 patients with severe aortic stenosis and no prior permanent pacemaker screened for TAVR. A prolonged (1 week) CEM was implanted within the 3 months pre-TAVR. Following heart team evaluation, 90 patients underwent elective TAVR. New AEs were detected by CEM in 51 (48.1%) patients, leading to a treatment change in 14 of 51 (27.5%) patients. Atrial fibrillation or tachycardia was detected in 8 of 79 (10.1%) patients without known atrial fibrillation or tachycardia, and nonsustained ventricular arrhythmias were detected in 31 (29.2%) patients. Significant bradyarrhythmias were observed in 22 (20.8%) patients, leading to treatment change and permanent pacemaker in 8 of 22 (36.4%) and 4 of 22 (18.2%) patients, respectively. The detection of bradyarrhythmias increased up to 30% and 4...Continue Reading
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