A term newborn develops tachypnea and cyanosis shortly after birth. The infant aspirated meconium during delivery. Echocardiography shows no structural heart defect, but pulmonary vascular resistance remains markedly elevated with right to left shunting across both the ductus arteriosus and foramen ovale. Which of the following is the most likely diagnosis?
- A)Patent ductus arteriosus
- B)Coarctation of the aorta
- C)Transposition of the great arteries
- D)Persistent pulmonary hypertension of the newbornGABARITO
- E)Tetralogy of Fallot
Explicação
Persistent pulmonary hypertension of the newborn is correct. Failure of normal postnatal decline in pulmonary vascular resistance maintains fetal right to left shunting through the ductus arteriosus and foramen ovale, causing severe hypoxemia. Meconium aspirat... Ver explicação completa e trilha adaptativa →