NPPB and atrial fibrillation: Mean NT-Pro BNP decrease was 51.7± 182.86 for SR and 123.4±52 for AF (P= 0.678).On the other hand BNP level had an increase of 9± 72.7 pg/ml in SR and 175.5±86.2 pg/ml in AF patients (P= 0.369).