This may be explained by the antifibrotic effects of MRAs, since fibrosis is present in patients with AF to a greater extent compared with those without AF 34 Unfortunately, when restricting meta‐analysis only to RCT versus placebo subgroup, the efficacy of MRAs did not reach statistical significance (OR, 0.76; 95% CI, 0.55–1.06 [ P =0.11]).
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Effects of Mineralocorticoid Receptor Antagonists on Atrial Fibrillation Occurrence: A Systematic Review, Meta-Analysis, and Meta-Regression to Identify Modifying Factors.
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