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Late-onset regurgitation associated with persistent right aortic arch in two dogs
1Department of Veterinary Clinical Sciences, Ohio State University, Columbus 43210.
Journal of the American Veterinary Medical Association
|October 15, 1987
Summary
Congenital persistent right aortic arch can cause regurgitation and weight loss in dogs. This condition may not show signs until later in life, contrary to typical weaning-age onset.
Area of Science:
- Veterinary Medicine
- Cardiovascular Surgery
- Canine Health
Background:
- Congenital persistent right aortic arch is a rare vascular ring anomaly.
- Typically, clinical signs manifest around weaning due to esophageal stenosis.
- Early diagnosis is crucial for managing associated complications.
Observation:
- Two dogs, aged 2.5 and 8 years, were diagnosed with persistent right aortic arch.
- The older dog showed no prior clinical signs until two months before diagnosis.
- One dog experienced transient regurgitation episodes prior to persistent signs.
Findings:
- Persistent right aortic arch can present with delayed clinical signs.
- Weight loss and regurgitation were primary presenting complaints.
- Esophageal dilatation was noted in affected dogs.
Implications:
- Veterinarians should consider persistent right aortic arch in dogs of any age presenting with regurgitation and weight loss.
- This finding expands the known clinical presentation timeline for vascular ring anomalies.
- Diagnostic imaging is essential for identifying esophageal compression and aortic anomalies.