ARYA Atherosclerosis Journal

Cryoballoon ablation results and complications in mid-term follow-up of patients with atrial fibrillation

Document Type : Short Communication

Authors

Javad Shahabi 1
Zahra Emkanjoo 2
Majid Haghjoo 2
Abolfath Alizadeh 2
Amirfarjam Fazelifar 2
Shabnam Madadi 2
Farzad Kamali 2
Mehrana Sharifi 2
Zahra Karimian 2
Ghasem Yadegarfar 3

1 Assistant Professor, Heart Failure Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran

2 Cardiac Electrophysiology Research Center, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran

3 Heart Failure Research Center, Cardiovascular Research Institute AND School of Public Health, Isfahan University of Medical Sciences, Isfahan, Iran

https://doi.org/10.22122/arya.v14i6.1772
Abstract
BACKGROUND: Atrial fibrillation (AF) is the most common cardiac arrhythmia, and its prevalence increases with advancing age. Pulmonary vein isolation is a standard approach in drug refractory paroxysmal AF which could be performed by cryoballoon ablation (CBA). We tried to evaluate its efficacy and safety in Iranian patients with AF.METHODS: From 2015 to 2017, 97 patients with paroxysmal and persistent AF were enrolled in our observational historical cohort study. They were visited 1 and 6 months post-procedure in order to assess the efficacy (recurrence) and safety. Recurrence was defined as 30 seconds of arrhythmia on their 48-hours Holter monitoring.RESULTS: Ninety-seven patients enrolled in the study, 64 (66.0%) of them were men, and their mean age was 55 ± 12 years. Hypertension was reported in 41 patients (42.3%), as the most common cardiac risk factor. 71 patients (73.2%) patients with paroxysmal AF and 15 patients (15.5%) with persistent AF underwent the procedure. After 6 months, recurrence was documented in only 17 patients (17.5%), and 82.5% of the patients were free from the recurrence. Post-procedural complication was detected only in 3 patients (3.1%).CONCLUSION: In our study, the mid-term success and safety of CBA in patients with paroxysmal AF was showed. CBA is a safe and effective method in paroxysmal AF, and even in some cases with persistent AF.

Keywords

Catheter Ablation
Atrial Fibrillation
Follow-Up Studies
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ARYA Atherosclerosis Journal
Volume 14, Issue 6 - Serial Number 6
November and December 2018
Pages 272-275

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