Table 1 Number and percentages of arterial branching anomalies in dogs with right aortic arch. Esophageal compression present in all cases and was caused by the left sided ligamentum arteriosum
Anomalies in dogs with persistent right aortic arch (n = 21) | Dogs | Percentage |
|---|---|---|
Normal brachiocephalic trunk | 0 | 0.0 |
Aberrant left subclavian artery (Type 3) | 16 | 76.2 |
Bicarotid trunk | 17 | 81.0 |
Left-sided brachiocephalic trunk including both carotid arteries and the left subclavian artery | 3 | 14.3 |
Aberrant left subclavian artery branching from the PDA | 2 | 9.5 |
Double aortic arch (Type 4) | 1 | 4.8 |
Right subclavian artery had a separate branch form the right aortic arch | 21 | 100 |
PDA visible | 3 | 14.3 |