NPPB and atrial fibrillation: Compared to patients with sinus rhythm, AF patients had larger left atrial diameter (39.86 ± 5.35 mm vs. 35.33 ± 5.86 mm; p < 0.001) and higher NT-proBNP level (213.85 ± 85.76 pg/mL versus 113.42 ± 31.15 pg/mL; p < 0.001).