Patent ductus arteriosus

Patent ductus arteriosus (PDA) is a medical condition in which the ductus arteriosus fails to close after birth: this allows a portion of oxygenated blood from the left heart to flow back to the lungs by flowing from the aorta, which has a higher pressure, to the pulmonary artery. Symptoms are uncommon at birth and shortly thereafter, but later in the first year of life there is often the onset of an increased work of breathing and failure to gain weight at a normal rate. [Source: Wikipedia ]

OrphaNet reference
Patent arterial duct 
Is A
Systemic-to-pulmonary vascular shunt
Coarctation syndrome
Complete transposition of great vessels and PDA without PS
Corrected transposition of great vessels and PDA without PS
Interruption of aortic arch with VSD and PDA
Large patent ductus arteriosus
Large PDA
May Cause
Acyanotic congenital heart disease with increased pulmonary vascularity
Anomalous thoracic arterial communication
Bilateral hilar enlargement
Complete atrioventricular canal
Congenital lobar emphysema
Heart failure in the first week of life
Large aortic arch
Large ascending aorta
Large main pulmonary artery
Left atrial enlargement
Left ventricular enlargement
Left-to-right shunt in congenital heart disease
Pulmonary hypertension
Right ventricular enlargement
Right-to-left shunt at ductus level
Unilateral pulmonary arterial hypervascularity
Vascular abnormality of mediastinum
May Be Caused by
Cardiofacial syndrome
CHAR syndrome
Chondrodysplasia punctata rhizomelic type
Chromosome 18:del(18q) syndrome
Chromosome 4p- syndrome
Chromosome 5:del(5p) syndrome
Congenital rubella syndrome
Heart-hand syndrome
Klinefelter syndrome
Oculo-auriculo-vertebral spectrum
Patent ductus arteriosus - bicuspid aortic valve - hand anomalies
Prune-belly syndrome
Rubinstein-Taybi syndrome
Seckel syndrome
Smith-Lemli-Opitz syndrome
Sternal malformation
Treacher Collins syndrome
Trisomy 13
Trisomy 18
Weill-Marchesani syndrome
Zellweger syndrome