Direct comparison studies about the incidence of esophago-gastric complications between radiofrequency (RF) and cryoballoon (CB) catheter ablation (CA) for atrial fibrillation (AF) have been scarce. We sought to elucidate the relationship between the pulmonary vein isolation (PVI) modalities and esophago-gastric complications.
The study population consisted of 254 patients who underwent CA for AF from November 2017 to October 2018. Finally, 160 patients were enrolled and divided into the RF and CB groups. Esophageal ulcers, gastric hypomotility, and exfoliative esophagitis detected by esophago-gastro-duodenoscopy were defined as esophago-gastric complications in this study.
The median age was 68 years old, with 34% being females. Esophago-gastric complications were observed in 42.5% of patients who underwent CA. According to the detailed esophago-gastric complications, the RF group had a higher prevalence of esophageal ulcers than the CB group (19% vs. 0%, p <0.0001). There was no significant difference between the two groups regarding gastric hypomotility and exfoliative esophagitis (18% vs. 28%; p = 0.15, 16% vs. 21%; p = 0.42, respectively).
Asymptomatic esophago-gastric complications were common in catheter ablation for atrial fibrillation. The incidence of esophageal ulcers was higher in the radiofrequency group than cryoballoon group, whereas the other esophago-gastric complications did not significantly differ. This article is protected by copyright. All rights reserved.

This article is protected by copyright. All rights reserved.