Case Studies In Small Animal

Cardiovascular Medicine

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Case 32

Three months later

Pertinent History

bulletMickey was diagnosed with taurine responsive dilated cardiomyopathy 11 weeks ago. He has been treated with enalapril, furosemide, and taurine supplementation. The enalapril and furosemide were discontinued two weeks ago when the owner ran out of the medication. The owner reports some vomiting and diarrhea occurred while on the enalapril but has not occurred since stopping the medication. Taurine supplementation is 500 mg (1/8 teaspoon) once to twice daily. The owner reports that Mickey is doing very well. Excellent food and water intake, no coughing sneezing etc. Energy level is excellent.
bulletMickey currently eats a combination of baked chicken and Iams dry cat food (according to the owner but we are reasonably sure the cat doesn't actually eat the commercial cat food).

Physical Examination

bullet4.4 kg. T 100.2, HR 150, RR 36. BAR Hydrated by turgor. Very active. Pupils dilated slight response to light. Anterior chamber, cornea and conjunctiva clear OU. BS 5/9 excellent body condition. MM pink, CRT 1 sec, occasional soft gallop rhythm, no murmurs auscultable, pulses strong no pulse deficits. Rest of physical exam unremarkable.


bulletEchocardiography: IVSd 0.5 cm, IVSs 0.6 cm, LVEDD 1.8 cm, LVESD 1.1cm, SF 39%. LVFWd 0.4cm, LVFWs 0.7cm.
bulletAssessment: Mickey is responding very well. The shortening fraction has improved to 39% and the end-systolic diameter is 11 mm, which are both almost normal.  The thoracic radiographs are normal. The eyes are not likely to improve much but the animal does appear to have some vision.
bulletPlan: Continue with taurine supplementation. Owner will return in six weeks for a recheck ultrasound.


Comment: The M-mode echocardiogram and thoracic radiographs have almost normalized. Mickey is well on his way to being cured!

Mark D. Kittleson, D.V.M., Ph.D. All rights reserved.