Do elevated baseline BNP or NT-pro BNP levels predict atrial fibrillation recurrence in patients undergoing catheter ablation?
Elevated baseline BNP and NT-pro BNP levels are significantly associated with a greater risk of atrial fibrillation recurrence after catheter ablation.
Natriuretic peptides like B-type natriuretic peptide (BNP) and N-terminal pro-BNP (NT-pro BNP) are reported to be increased in atrial fibrillation (AF) patients. However, the prognostic roles of BNP and NT-pro BNP in post-ablation AF recurrence remain inconclusive. We performed this meta-analysis to investigate the potential role of baseline natriuretic peptides in predicting AF recurrence after catheter ablation.Electronic databases were searched for studies that evaluated the potential relationship between AF recurrence and baseline BNP or NT-pro BNP levels. The pooled standardized mean difference (SMD) and 95% confidence interval (CI) were calculated to quantify differences in BNP or NT-pro BNP levels between patients with and without AF recurrence.Ten studies on BNP and 8 studies on NT-pro BNP were included, in which 411 of 1300 patients and 256 of 846 patients experienced AF recurrence, respectively. Overall, the pooled SMD of studies on BNP was 0.55 (95% CI: 0.260.84, P 3 months) in the NT-pro BNP group might account for the heterogeneity. Sensitivity analyses indicated both the results were stable.Meta-analysis of current eligible studies suggested that both increased baseline BNP and NT-pro BNP levels are associated with greater risk of AF recurrence after catheter ablation, which could be biomarkers for predicting AF recurrence.
Zhang et al. (Fri,) studied this question.