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Recurrent atrial fibrillation markers post radiofrequency catheter ablation.

Clin Chim Acta

January 2025

Department of Cardiology, the First Hospital of Jilin University, Changchun, Jilin Province 130021, China. Electronic address:

Atrial fibrillation (AF), the most common type of heart arrhythmia, is recognized as an independent risk factor for stroke. Fortunately, catheter ablation (CA) offers an effective treatment option for AF patients. However, numerous studies have reported suboptimal outcomes, as AF recurrence rates often remain elevated even after CA.

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Introduction: A hybrid approach with very high-power short-duration (vHPSD) posteriorly and ablation-index guided HPSD (50 W) anteriorly seems to be an optimal balance between efficiency and effectiveness for point-by-point pulmonary vein isolation (PVI). The aim of the current study is to compare vHPSD/HPSD ablation to cryoballoon ablation (CBA) in patients with symptomatic atrial fibrillation (AF).

Methods And Results: In this retrospective single-center study, we identified 110 consecutive patients who underwent their first PVI with either vHPSD/HPSD (n = 54) or CBA (n = 56).

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Surgical and Ablation Therapies for Atrial Appendage Tachycardia in Children.

JACC Clin Electrophysiol

December 2024

Department of Pediatric Cardiology, Heart Center, First Hospital of Tsinghua University (Beijing Huaxin Hospital), Chaoyang District, Beijing, China.

Background: Atrial tachycardia (AT) originate from the atrial appendage present unique clinical challenges in pediatrics. It is typically persistent, frequently leading to tachycardiomyopathy, and poses significant treatment difficulties.

Objectives: This study aimed to collate and analyze the clinical characteristics and therapeutic outcomes of radiofrequency ablation (RFCA) and with atrial appendage resection for the treatment of AT originating from the atrial appendages in pediatric patients.

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Atrial fibrillation (AF) is the most common sustained arrhythmia, linked with a significantly heightened risk of stroke. While moderate exercise reduces AF risk, high-level endurance athletes paradoxically exhibit a higher incidence. However, their stroke risk remains uncertain due to their younger age, higher cardiovascular fitness, and lower rate of comorbidities.

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Background: Colchicine is commonly used early after atrial fibrillation (AF) ablation to reduce inflammation and reduce AF recurrence, but there is limited long-term efficacy data.

Objective: To evaluate the effect of low dose colchicine use on long-term AF recurrence after AF ablation.

Methods: From 2013 to 2021, all AF ablations performed at a single tertiary care medical center were analyzed for colchicine use, clinical and procedural characteristics, and AF recurrence.

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