Key result
Higher right atrial volume index independently predicted the recurrence of atrial fibrillation after electrical cardioversion or radiofrequency ablation (OR 1.06).
Why the study?
Most studies have focused on left atrial volume and index, leaving little information on the relationship between right atrial volume or volume index and AF recurrence after cardioversion or ablation.
Do higher right atrial volume index (RAVI) and right atrial volume (RAV) predict atrial fibrillation recurrence in patients with AF who underwent electrical cardioversion or radiofrequency ablation?
Meta-Analysis (n=1,628)
Do higher right atrial volume index (RAVI) and right atrial volume (RAV) predict atrial fibrillation recurrence in patients with AF who underwent electrical cardioversion or radiofrequency ablation?
Odds Ratio: 1.06 (95% CI 1.02–1.11)
Higher right atrial volume index and right atrial volume are independent predictors of atrial fibrillation recurrence following electrical cardioversion or radiofrequency ablation.
May refine AF recurrence risk stratification after cardioversion or ablation; supports validation in prospective cohorts before routine use.
BACKGROUND: Atrial volume index and atrial volume have recently been identified as predictors of atrial fibrillation (AF) recurrence following electrical cardioversion or radiofrequency ablation. However, most studies have reported the relationship between LAVI/LAV and AF recurrence, whereas there is little information on the relationship between RAVI/RAV and AF recurrence. Therefore, we performed a meta-analysis to assess the relationship between the risk of AF recurrence and RAVI/RAV in patients with AF who underwent electrical cardioversion or radiofrequency ablation. METHODS: CNKI, Wanfang Database, Pubmed, Embase, Cochrane Library, and Web of Science were searched up to October 01, 2024. A meta-analysis of relative risk data from prospective and retrospective cohort studies that reported on the relationship between the risk of AF recurrence and RAVI/RAV in patients with AF after electrical cardioversion or radiofrequency ablation was performed. RESULTS: The results showed that patients with AF recurrence had a higher mean right atrial volume index (RAVI) compared to patients with no recurrence. After electrical cardioversion or radiofrequency ablation, RAVI can independently predict the recurrence of AF (OR = 1.06, 95%CI (1.02, 1.11)). The average right atrial volume (RAV) of patients with AF recurrence was higher than that of patients without AF recurrence. After electrical cardioversion or radiofrequency ablation, RAV can independently predict the recurrence of AF (OR = 1.02, 95%CI (1.00, 1.05)). CONCLUSION: Patients with AF recurrence after electrical cardioversion or radio frequency ablation had higher mean RAVI and RAV compared to patients with no recurrence. After electrical cardioversion or radiofrequency ablation in patients with AF, higher levels of RAVI and RAV increase the chance of recurrence of AF.
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Xie et al. (2024) conducted a meta-analysis in Atrial fibrillation (n=1,628). Right atrial volume index (RAVI) vs. Lower right atrial volume index was evaluated on Recurrence of atrial fibrillation (OR 1.06, 95% CI 1.02, 1.11). Higher right atrial volume index independently predicted the recurrence of atrial fibrillation after electrical cardioversion or radiofrequency ablation (OR 1.06).
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