We aimed to explore the clinical and functional relevance of aortic root diameter by utilizing the contemporary American Society of Echocardiography (ASE) guideline [18] and the N-terminal pro-brain natriuretic peptide (NT-proBNP) level proposed by the European HF Society in a large, asymptomatic Asian population that underwent a cardiovascular survey [19]. Here, NPPB is linked to hydrops fetalis.