Table 1:

Classification of vascular ring

Vascular ring type	No. patients (N = 371)
Complete vascular ring, n (%)	229 (61.7)
Double aortic arch	91
Right arch dominant	65
Left arch dominant	10
Codominant	16
Right aortic arch with left ligamentum arteriosum	136
Aberrant left subclavian artery	95
Mirror-image branching	41
Left aortic arch, right-sided descending aorta with right ductus arteriosus	2
Incomplete vascular ring, n (%)	142 (38.3)
Pulmonary artery sling	85
Left aortic arch with aberrant right subclavian artery	56
Innominate artery compressionsyndrome	1