The Ahmadu Bello University B-type Natriuretic Peptide (ABU-BNP) study assessed the clinical value of monitoring changes in BNP levels and echocardiographic pulse-wave tissue doppler (TD) left ventricular filling pressure (E/”) in 75 Nigerian patients with acute HF managed for one month with standard HF care [22]. Here, NPPB is linked to hydrops fetalis.