Persistent Pulmonary Hypertension Of Newborn (PPHN)

Persistent Pulmonary Hypertension of the Newborn is a dangerous illness that affects newborns and is marked by the failure of the normal circulatory transition after birth. In a healthy newborn, pulmonary vascular resistance goes down, which lets blood flow into the lungs to obtain oxygen. In PPHN, on the other hand, the pulmonary arteries stay narrow, which keeps the pressure high. Blood flows from the right side to the left side through foetal channels such as the ductus arteriosus and foramen ovale. This leads to very low levels of oxygen in the blood, even though the person is breathing normally.

Some common reasons are hypoxia at delivery, meconium aspiration, pneumonia in newborns, and respiratory distress syndrome. Clinically, affected neonates exhibit cyanosis, tachypnoea, and decreased oxygen saturation that remains unresponsive to supplementary oxygen. Echocardiography confirms the diagnosis by showing high pulmonary pressures and aberrant shunting.

Management aims to enhance oxygenation and diminish pulmonary vascular resistance. Oxygen therapy, mechanical ventilation, inhaled nitric oxide, and extracorporeal membrane oxygenation (ECMO) are all ways to treat this condition. Early detection and swift action are essential to decrease morbidity and mortality. Long-term consequences depend on how bad the problem is and what caused it, and certain babies are at risk of neurodevelopmental problems, particularly if they experience prolonged hypoxia or require extensive medical interventions.