October 1, 2019Circulation Arrhythmia and Electrophysiology
Outcomes of Atrial Fibrillation Ablation in Morbidly Obese Patients Following Bariatric Surgery Compared With a Nonobese Cohort
Why the study?
Morbid obesity is associated with high recurrence rates after AF ablation, but the effect of prior bariatric surgery compared with nonobese and non-bariatric morbidly obese patients was unclear.
Does prior bariatric surgery reduce arrhythmia recurrence following atrial fibrillation ablation in morbidly obese patients?
Population
51 morbidly obese patients with prior bariatric surgery matched with 102 nonobese and 102 morbidly obese patients
Comparison
Prior bariatric surgery vs nonobese patients vs morbidly obese patients without bariatric surgery
Design
Single-center observational cohort study
Follow-up
Mean 29±13 months
Authors
Discussion
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Member takes
Implication
May support bariatric surgery before AF ablation in morbid obesity; extends observational data but leaves open need for RCTs.
Structured PICO
Does prior bariatric surgery reduce arrhythmia recurrence following atrial fibrillation ablation in morbidly obese patients?
P
Population
255 patients undergoing atrial fibrillation ablation, including 51 morbidly obese patients (body mass index ≥40 kg/m2) with prior bariatric surgery, 102 nonobese patients, and 102 morbidly obese patients without prior bariatric surgery.
I
Intervention
Prior bariatric surgery before atrial fibrillation ablation
C
Comparator
Nonobese patients and morbidly obese patients without prior bariatric surgery
O
Outcome
Arrhythmia recurrencehard clinical
Bariatric surgery prior to atrial fibrillation ablation in morbidly obese patients significantly reduces arrhythmia recurrence to rates comparable to those of nonobese patients.
Cite This Study
Donnellan et al. (2019) studied this question.