Acyanotic tetralogy of Fallot in a Persian cat.

An 8-year-old, intact male Persian cat was presented with a prominent heart murmur, exercise intolerance, anorexia, and periodontitis. There was no cyanosis and no laboratory evidence for systemic hypoxemia. Echocardiography showed a dextropositioned aorta, moderate pulmonic stenosis (maximal velocity 4.06 m/s), ventricular septal defect, and right ventricular hypertrophy. The shunt direction was predominantly left-to-right in systole and minimally right-to-left in diastole. The cat was diagnosed with acyanotic (pink) tetralogy of Fallot and was managed medically with atenolol.