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PREVALENCE AND CHARACTERISTICS OF ATRIAL HIGH-RATE EPISODES IN PATIENTS WITH DUAL-CHAMBER PACEMAKER
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Abstract
Background and Objectives: Atrial high-rate episodes (AHREs) can be detected by cardiovascular implantable electronic devices. However, the prevalence and characteristics of AHREs have not been well identified. Methods: This prospective cohort study included 145 patients (median age 64.46 ± 16.38 years, 53.1% female) without atrial fibrillation (AF) from December 2020 to January 2022. AHREs was defined as a programmed atrial detection rate ≥ 190 beats per minute. Results: During 6 months of following up, AHREs occurred in 30.34% patients. There were statistically significant differences between the AHRE group and no AHRE group in terms of using anti-arrhythmic drugs before implantation ( p=0.001), history of paroxysmal supra-ventricular tachycardia (p<0.001), the percentage of premature atrial contraction on 24 hour Holter electrocardiogram (p<0.001) and left ventricular global longitudinal strain (LV-GLS) (p=0.036). Conclusions: The prevalence of AHRE during 6 months of follow-up was 30.34%. This study showed that history of supra-ventricular tachycardia and using anti-arrhythmic drugs, the percentage of premature atrial contraction on 24 hour electrocardiogram Holter monitoring and LV-GLS were statistically significant differences between the group with AHRE and no AHRE.
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