Objective: To investigate the role of plasma copeptin in predicting mortality in children with heart failure (HF) in addition to poor outcomes, including sepsis, multiorgan dysfunction syndrome, need for mechanical ventilation, and duration of stay in the pediatric intensive care unit.
Methods: This diagnostic study included 76 children aged 1 month to 16 years who were hospitalized with congenital or acquired heart disease with HF, and an age- and gender-matched control group of 65 healthy children. Plasma copeptin level was evaluated within 24 hours of admission.