Figure 3From: Ratio of preoperative atrial natriuretic peptide to brain natriuretic peptide predicts the outcome of the maze procedure in mitral valve disease Correlations between plasma ANP-to-BNP ratio and fibrosis (%) in the left atrium (A), left atrial appendage (B), right atrium (C) and right atrial appendage (D). ANP: atrial natriuretic peptide; BNP: brain natriuretic peptide.Back to article page