All patients with tetralogy and 22q11 deletion had 1 to 4 additional c
onotruncal anomalies, such as high aortic arch, right aortic arch, inf
undibular septal defect, aberrant origin of the subclavian artery, maj
or aortopulmonary collateral arteries, and anomalous ductus arteriosus
causing isolation of either the left pulmonary artery or the subclavi
an artery.