Aortic Origin of the Left Pulmonary Artery in an Infant With Fallot's Tetralogy

Prenatal diagnosis of anomalous origin of pulmonary artery

“…AORPA is 4 to 8 times more common than AOLPA . AORPA is less likely associated with other cardiovascular defects . According to the origin of the pulmonary artery branch from the aortic valve and the distance from the anonymous artery, it can be further classified as proximal and distal .…”

“…17 AORPA is less likely associated with other cardiovascular defects. 18 According to the origin of the pulmonary artery branch from the aortic valve and the distance from the anonymous artery, it can be further classified as proximal and distal. 19 The proximal form of AOPA is relatively close to the aortic valve and often incorporates the aortopulmonary window.…”

Tetralogy of Fallot

“…Anomalies in the branching pattern of the coronary arteries are reported in approximately 5% of all cases (Fig. Anomalous origin of the LCA from the pulmonary artery has been reported in patients with TOF [77,[79][80][81][82]. The most common anomaly, occurring in 3%, is origin of the left anterior descending (LAD) coronary artery from the right coronary artery (RCA); this is followed by dual LAD in 1.8%, single RCA in 0.3%, single left coronary artery (LCA) in 0.2%, and coronaryto-pulmonary artery fistula in 0.2%.…”

“…Aortic origin of branch pulmonary artery [127,128], unilateral absence of branch pulmonary artery, crossed pulmonary arteries [80,129], aortopulmonary window [109,130,131], and pulmonary artery slings [132,133] have been described in association with TOF. Crossed pulmonary arteries may be a marker for 22q11 deletion [129,[134][135][136].…”

Left Pulmonary Artery from the Ascending Aorta: A Case Report and Review of Published Cases

“…The second type, with anomalous origin of the left pulmonary artery, is much rarer, accounting for 0.03% of all congenital heart defects. It is often associated with other cardiac malformations [ 2 , 3 ]. The anomalous pulmonary artery, furthermore, can arise intrapericardially from the ascending aorta, or extrapericardially from the transverse or descending parts of the aorta.…”