Differential Regulation of Plasma Copeptin Levels in Patients with Heart Failure: A Single-Center Prospective Study.

Elevated levels of arginine vasopressin (AVP) have been reported to be involved in the pathogenesis of heart failure (HF). Recent evidence has shown the role of copeptin, the C-terminal fragment of pro-AVP, as a biomarker in patients with HF. However, the relevant information is still limited.