<unk>  <unk>  is a remnant of the distal sixth aortic arch and connects the pulmonary artery at the junction of the main pulmonary artery and the origin of the left pulmonary artery to the proximal descending aorta just after the origin of the left subclavian artery. Normally, the<unk>  closes within a few hours or days of birth; when it does not, the result is<unk> . This defect is common in premature infants but rare in full-term infants. Symptoms include shortness of breath and cardiac arrhythmia, and may progress to congestive heart failure if left uncorrected.
Patent ductus arteriosus
Persistent truncus arteriosus
Atrioventricular septal defect
Atrioventricular canal defect
Ductus arteriosus aneurysm
Tricuspid atresia
Atrial septal defect sinus venosus
Atrial septal defect