Peer-reviewed veterinary case report
Cat with rare heart defect causing left atrium division and heart
By Nakao, Shu et al.·Published in Journal of feline medicine and surgery·2011·Department of Veterinary Clinical Oncology, Japan·View original on PubMed →
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Original publication title: Cor triatriatum sinister with incomplete atrioventricular septal defect in a cat.
- Species:
- cat
Plain-English summary
An 11-month-old female domestic shorthair cat was brought in because of heart problems. Tests showed she had a rare heart condition called cor triatriatum sinister (CTS), where a membrane divides the left atrium into two chambers, along with an incomplete atrioventricular septal defect (AVSD). The cat was treated with medications to manage congestive heart failure, but unfortunately, she passed away from right-sided heart failure about 17 months later. A thorough examination after her death confirmed the heart defects.
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Abstract
An 11-month-old, 3 kg, female domestic shorthair cat was referred to evaluate cardiac structure and function. Echocardiography revealed the membrane dividing the left atrium into two chambers, a large defect in the lower part of the atrial septum, and turbulent blood flow from the distal left atrium into the right atrium. These findings suggested cor triatriatum sinister (CTS) with incomplete atrioventricular septal defect (AVSD). The cat was treated with medications for management of congestive heart failure. In the end, she died from right-sided heart failure 17 months after the initial presentation. At necropsy, a fibromuscular membrane with a round orifice in the left atrium and an ostium primum defect were confirmed, and the definitive diagnosis of CTS with incomplete AVSD was made. To our knowledge, this study presents the first case report of CTS with incomplete AVSD in a cat.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/21497529/