Arrhythmias & electrophysiologyCohort study
Association between body mass index and results of cryoballoon ablation in Korean patients with atrial fibrillation: an analysis from the Korean Heart Rhythm Society Cryoablation registry
- Registry-based cohort study
- multicentre
Authors' conclusion
Underweight patients showed a higher risk of AF recurrence after cryoablation compared with NW patients.
Study context
- Population
- Korean patients with atrial fibrillation (AF) undergoing cryoballoon PVI, Korean Heart Rhythm Society Cryoablation registry (12 tertiary hospitals)
- Participants
- 2,648 patients
- Exposure
- Body mass index (BMI) groups vs NW
- Outcome
- AF recurrence and procedure-related complications after cryoablation
- Follow-up
- Median 1.7 years
Main finding
AF recurrence
Adjusted hazard ratio
2.55
95% CI 1.18–5.50
P = 0.02
UW vs NW
adjusted HR 2.55 (95% CI 1.18–5.50); P = 0.02
As reported in the abstract
Observational data: associations, not effects.
Safety
| Outcome | OR (95% CI) | P value | |
|---|---|---|---|
| Procedure-related complications · mainly transient phrenic nerve palsy | 2.90 (0.94–8.99) | P = 0.07 | |
| 0.10.31310Odds ratio (log scale) |
Procedure-related complications
- Complications, all patients: 123 (4.7%)
Original publication
Association between body mass index and results of cryoballoon ablation in Korean patients with atrial fibrillation: an analysis from the Korean Heart Rhythm Society Cryoablation registry. Europace. Published 16 April 2024. doi:10.1093/europace/euae095
Summarised from the published abstract; every number is checked against it