4-year-old DSH Feline presented for anorexia. The clinical exam revealed a 4/6 systolic heart murmur. An echocardiogram was performed discovering Tetrology of Fallot; pulmonic stenosis, ventricular septal defect, right ventricular hypertrophy, overriding aorta. Unfortunately further analysis revealed Feline Infectious Peritonitis and the patient was eventually euthanized.
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Images 1 & 2: Lateral and ventral-dorsal thoracic radiographs demonstrating generalized cardiomegaly with a pronounced cranial waist/right heart. Pronounced pulmonary arteries are noted.
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Image 3: Right sided 5-chamber long axis view of this feline heart evidencing the ventricular septal defect, overriding aorta, and right ventricular hypertrophy.
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Image 4: Color flow Doppler demonstrating turbulent left to right flow from the aortic outflow into the right ventricle by means of a membranous ventricular septal defect.
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Video 1: Live right sided 5-chamber long axis view demonstrating the 3 defects with intermittent color flow Doppler. Pulmonic stenosis not visible in these views.
