Diagnosis of pulmonary artery sling on screening echocardiogram in an
asymptomatic neonate with biliary atresia.
AbstractPulmonary artery sling is a rare congenital vascular anomaly in which
the left pulmonary artery arises from the posterior aspect of right
pulmonary artery and courses to the left behind the tracheal bifurcation
and in front of the esophagus to reach the left lung hilum and forms a
sling around the trachea. We are reporting a case of a two-month-old
infant with biliary atresia referred for screening echocardiogram before
surgical procedure. The patient had no history of respiratory distress
or dysphagia. Echocardiography revealed aberrant left pulmonary artery
arising from the right pulmonary artery with no pulmonary stenosis
probably pulmonary artery sling. Diagnosis was confirmed on cardiac
computed tomography angiography. On minor class of risk stratification
patient was allowed to proceed for surgical procedure for biliary
atresia as standard risk of anesthesia.