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  • Title: Complete interruption of the aortic arch in a dog.
    Author: Jacobs G, Patterson D, Knight D.
    Journal: J Am Vet Med Assoc; 1987 Dec 15; 191(12):1585-8. PubMed ID: 3693014.
    Abstract:
    Complete interruption of the aortic arch was diagnosed by angiocardiography in a dog with exercise intolerance, a cardiac murmur, polycythemia, and cardiomegaly. The defect was accompanied by a patent ductus arteriosus, ventricular septal defect, and subaortic stenosis. The dog was euthanatized, and the clinical diagnosis was documented by gross dissection of the heart. The site of aortic interruption was between the left carotid and left subclavian arteries, which is the most common location in human beings. The similarity with the pathologic findings of interrupted aortic arch in human beings suggests a similar mechanism responsible for the abnormal cardiac morphogenesis. The defect may be confused with other cardiac anomalies that can result in exercise intolerance, polycythemia, and cardiac murmur. This defect is amenable to surgical treatment, which emphasizes the importance of a correct anatomic diagnosis in clinical patients.
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