ABSTRACT

You are called acutely to the postnatal ward to see a 48-hour-old baby girl. She was seen the day before by your colleague, who performed her baby check and found no abnormalities. On arrival, you find a baby who is grunting and cyanotic. All pulses are palpable, and there is no murmur on auscultation of the chest. You transfer her to the neonatal unit where you find her oxygen saturations are 55% in air. Which of the following congenital cardiac lesions would be consistent with these findings?