Peer-reviewed veterinary case report
Cat with breathing trouble diagnosed with rare heart defect
By Faviana Aimé Maza León et al.·Published in Brazilian Journal of Veterinary Research and Animal Science·2025·View original on Semantic Scholar →
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Original publication title: Cor triatriatum sinister in a cat: case report
- Species:
- cat
Plain-English summary
A cat was brought to the vet for breathing problems (dyspnea) and was found to have a rare heart condition called cor triatriatum sinister, where an abnormal membrane divides the left atrium, blocking blood flow. Despite efforts to treat the cat, its condition worsened, leading to the difficult decision of euthanasia. A post-mortem examination confirmed the diagnosis. Unfortunately, this condition can lead to serious complications like congestive heart failure, and in this case, treatment was not successful.
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Abstract
Cor triatriatum sinister is an uncommon congenital condition characterized by an aberrant membrane that divides the left atrium into two chambers due to an abnormal incorporation of the pulmonary veins. This anomaly obstructs blood flow to the left atrium, leading to pulmonary hypertension and, consequently, congestive heart failure. This case report presents a cat that was treated in the veterinary cardiology service for dyspnea. An echocardiogram revealed an intra- atrial membrane within the left atrium. Due to the patient´s deteriorating condition, euthanasia was performed, and subsequent necropsy and histopathology examination also confirmed the diagnosis of cor triatriatum sinister.
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Search related cases →Original publication on Semantic Scholar: https://www.semanticscholar.org/paper/b7eaa16eacbf857c52c22093eef5afa4996b6885