A premature male infant a...

A premature male infant at 29 weeks gestation with a birth weight of 1000 g was admitted to the NICU. On the fifth day of care, the infant exhibited tachypnea, mild subcostal retraction, and widened pulse pressure, pulsus celer, but no cyanosis or increased oxygen demand. Physical examination revealed a murmur at the second intercostal space sinistra and along the sternal border sinistra. Thorax X-ray examination revealed increased pulmonary vascular flow. The patient was diagnosed with Persistent Ductus Arteriosus and treated with Ibuprofen 10mg/kg body weight on the second and third days, with a single dose of 5mg/kg body weight each day.