Journal of Veterinary Clinics (한국임상수의학회지)

The Korean Society of Veterinary Clinics (한국임상수의학회)
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Type 4 Tetralogy of Fallot with Pulmonary Hypertension in an American Shorthair Cat

  • Hyeon-Jin, Kim (Department of Veterinary Internal Medicine, College of Veterinary Medicine, Chonnam National University) ;
  • Jihyun, Kim (Department of Veterinary Internal Medicine, College of Veterinary Medicine, Chonnam National University) ;
  • Tae Jung, Kim (College of Veterinary Medicine, Chonnam National University) ;
  • Ha-Jung, Kim (Department of Veterinary Internal Medicine, College of Veterinary Medicine, Chonnam National University)
  • Received : 2022.09.08
  • Accepted : 2022.11.23
  • Published : 2022.12.31
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Abstract

A 2-year-old, spayed female, American shorthair cat presented with acute weight loss, tachypnea, and dyspnea. The cat had grade V holosystolic murmur and systemic hypotension. Echocardiography showed a 9 mm defect in the ventricular septum, left-to-right dominant bi-directional shunt, right ventricular hypertrophy, pulmonary stenosis, pulmonary hypertension, and overriding aorta. The cat was diagnosed with a Tetralogy of Fallot. The cat was treated with furosemide, pimobendan, ramipril, and sildenafil. Treatment reduced pulmonary infiltration, pulmonary vessel enlargement, and main pulmonary artery bulging. However, right-to-left flow increased over time and right ventricular outflow tract velocity was elevated. Currently, the patient has maintained an improved state for 1 year. This case report described a severe inherited feline Tetralogy of Fallot case that was successfully managed for a long time.

Keywords

Acknowledgement

This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF), which is funded by the Ministry of Education (NRF-2020R1A2C2005364).

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