The objective of this research was to investigate the correlation between the Monocyte-to-high-density lipoprotein-cholesterol ratio (MHR), Neutrophil gelatinase-associated lipocalin (NGAL), and Angiotensin II (Ang II) with both short-term and long-term mortality rates in elderly patients with heart failure (HF). The gene discussed is AGT; the disease is hydrops fetalis.