8th February 2022

A two-day old new-born is brought into the ED with bluish lips and tongue

A two-day old new-born is brought into the ED with bluish lips and tongue. You hear a murmur at the left lower sternal edge. The baby continues to deteriorate despite oxygen therapy. An echocardiogram has shown an imperforate pulmonary valve, hypoplastic right ventricle and tricuspid regurgitation. Your consultant asks you to investigate ventriculo-coronary fistulae. What is the investigation of choice?

Select the SINGLE most appropriate option from the list below. Select ONE option only.