Aortic root disease in four horses |
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Authors: | Sleeper M M Durando M M Miller M Habecker P L Reef V B |
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Institution: | Department of Clinical Studies, New Bolton Center, University of Pennsylvania, Kennett Square 19348-1692, USA. |
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Abstract: | Clinical findings in 4 horses with aortic root disease are described. Three of the horses had aneurysms of the right aortic sinus, and in 2 of the 3, the aneurysm ruptured, creating a fistula between the aorta and right ventricle. One of these horses had had a murmur since birth, and the aortic sinus aneurysm may have been a congenital anomaly. In a second horse, the aneurysm may have been an acquired condition that developed secondary to chronic aortic regurgitation. Another horse had a large subendocardial hematoma associated with dissection of blood from the aorta to the interventricular septum because of a tear in the aortic root near the right aortic sinus. Ventricular ectopy and signs of abdominal pain were the most common initial signs in these horses. |
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