NPPB and hydrops fetalis: Through our research, we aimed to add novelty to the current medical research regarding MPV as a prognostic parameter in HF patients by identifying correlations between MPV values and certain parameters, such as increased NT-proBNP, increased RDW, and the presence of an AFib rhythm, reduced LVEF, dilated LA and LV, and PH, which are considered negative prognostic variables in HF patients.