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Meta-Analysis
. 2016 Oct;76(6):460-4.
doi: 10.1080/00365513.2016.1199048. Epub 2016 Jun 27.

Relation of N-terminal pro-brain natriuretic peptide and new-onset atrial fibrillation in patients with acute coronary syndrome: a systematic review and meta-analysis

Affiliations
Meta-Analysis

Relation of N-terminal pro-brain natriuretic peptide and new-onset atrial fibrillation in patients with acute coronary syndrome: a systematic review and meta-analysis

Xiongyi Gao et al. Scand J Clin Lab Invest. 2016 Oct.

Abstract

Background: Several observational studies evaluated the associations of baseline N-terminal pro-brain natriuretic peptide (NT-proBNP) and new-onset atrial fibrillation (AF) in patients with acute coronary syndrome (ACS), but the results were contradictory.

Methods: Electronic bibliographic databases were searched from inception to May 2015, and the results reviewed by two independent reviewers. Pooled standardized mean difference (SMD) and 95% confidence interval (CI) were calculated to assess associations between NT-proBNP levels and new-onset AF in patients with ACS. We performed sensitivity analyses to explore the potential sources of heterogeneity and estimated publication biases.

Results: Six papers, including 5861 patients (438 with AF and 5423 without AF) with ACS were analyzed. Overall, the NT-proBNP levels were higher in patients with new-onset AF than controls without AF. The SMD of the NT-proBNP levels between the patients with and those without AF was 0.53 units (95% CI 0.37-0.70), test for overall effect z-score =6.30 (p < 0.00001). The heterogeneity test showed that there were moderate differences between individual studies (p = 0.02; I(2) =( )62%). Further analysis revealed that differences of ethnic groups and the sample size of studies possibly account for this heterogeneity.

Conclusions: In spite of moderate heterogeneity across the enrolled studies, our meta-analysis suggests that increased NT-proBNP levels are associated with greater risk of new-onset AF with ACS, which indicates that NT-proBNP levels may be a useful biomarker in predicting new-onset AF in patients with ACS.

Keywords: Acute coronary syndrome; N-terminal pro-brain natriuretic peptide; atrial fibrillation.

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