Figure 1From: Ratio of preoperative atrial natriuretic peptide to brain natriuretic peptide predicts the outcome of the maze procedure in mitral valve disease ROC curve analysis in relation to the outcome after a maze operation. ANP: atrial natriuretic peptide; BNP: brain natriuretic peptide; CTR: cardiothoracic ratio; LAD: left atrial dimension.Back to article page