by: Dr. Wolfgang Froehlich
Five year old mare (life expectancy in horses: about 30 years), with exercise intolerance, holodiastolic murmur with the point of maximal intensity over tricuspid valve, moderate aortic and mitral regurgitation, tachycardic. An echocardiogram showed a 6x6 cm subaortic ventricular septal defect. There was also a 10 cm right sinus of Valsalva aneurysm bulging into the right ventricle. Contrast study from jugular vein: no positive or negative contrast. There was no intracardiac shunting by Doppler. There is no surgical repair possible in the horse. Two days later, the mare was found dead.
Sinus of Valsalva aneurysm and ventricular septal defect. Animation that can be viewed with an MPEG player.
Right ventricular contrast. MPEG animation.
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