Persistent pulmonary hypertension of the newborn (PPHN) is a serious condition characterized by failure of the normal postnatal decline in pulmonary vascular resistance, leading to severe hypoxemia. Outcomes vary widely, ranging from complete recovery to death.
This observational study will include term and preterm neonates admitted to the NICU with clinical and echocardiographic evidence of pulmonary hypertension. Clinical, laboratory, and echocardiographic parameters will be recorded to identify predictors of mortality and other adverse outcomes.