Peer-reviewed veterinary case report
Dog with rare three-chambered right atrium heart defect
By Yang, Vicky K et al.·Published in Journal of veterinary cardiology : the official journal of the European Society of Veterinary Cardiology·2015·Department of Clinical Science, United States·View original on PubMed →
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Original publication title: Congenital cardiac malformation with three-chambered right atrium and a persistent left cranial vena cava in a dog.
- Species:
- dog
Plain-English summary
A dog with a rare heart condition was found to have a three-chambered right atrium and a persistent left cranial vena cava, which caused blockages in blood flow. The dog had multiple membranes in its heart that were obstructing blood return from the body. To treat this, veterinarians used a procedure called balloon dilation, which successfully opened up the blocked areas. This helped improve the dog's blood flow and overall heart function.
People also search for: dog heart problems · balloon dilation for dog heart · congenital heart defect in dogs
Abstract
This report describes an unusual congenital abnormality in a dog in which multiple distinct membranes were observed within the right atrium, creating obstruction to venous return from both the cranial vena cava and the caudal vena cava. A persistent left cranial vena cava was also identified. In addition to a membrane in the typical location for cor triatriatum dexter, the dog also had a perforated membrane separating the main right atrial body and tricuspid valve from a more cranial right atrial chamber and the right cranial vena cava. Balloon dilation was performed successfully to alleviate the obstruction to systemic venous return created by the two membranes. Due to the unusual anatomic features, angiography plus echocardiography was useful to completely characterize the congenital abnormality prior to intervention.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/25683781/