Peer-reviewed veterinary case report
Stenting to ease severe heart valve narrowing in 2 dogs
By Scansen, Brian A et al.·Published in Journal of veterinary cardiology : the official journal of the European Society of Veterinary Cardiology·2014·Department of Clinical Sciences, United States·View original on PubMed →
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Original publication title: Stenting of the right ventricular outflow tract in 2 dogs for palliation of dysplastic pulmonary valve stenosis and right-to-left intracardiac shunting defects.
- Species:
- dog
Plain-English summary
Two dogs with serious heart problems, specifically a narrowed pulmonary valve and abnormal blood flow, underwent a procedure to place stents in their hearts to help improve blood flow. One dog had two stents placed over several months, while the other received one stent. After the procedures, both dogs showed temporary improvement, with less exercise intolerance and fainting spells. Unfortunately, over the next six months, they developed further heart issues, leading to poor long-term outcomes. While the stenting was successful in the short term, more research is needed to improve this treatment for dogs with similar conditions.
People also search for: dog heart problems treatment · pulmonary valve stenosis in dogs · stenting for dog heart disease
Abstract
Two dogs with severe dysplastic pulmonary valve stenosis and right-to-left shunting defects (patent foramen ovale, perimembranous ventricular septal defect) underwent palliative stenting of the right ventricular outflow tract and pulmonary valve annulus using balloon expandable stents. One dog received 2 over-lapping bare metal stents placed 7 months apart; the other received a single covered stent. Both procedures were considered technically successful with a reduction in the transpulmonary valve pressure gradient from 202 to 90 mmHg in 1 dog and from 168 to 95 mmHg in the other. Clinical signs of exercise intolerance and syncope were temporarily resolved in both dogs. However, progressive right ventricular concentric hypertrophy, recurrent stenosis, and erythrocytosis were observed over the subsequent 6 months leading to poor long-term outcomes. Stenting of the right ventricular outflow tract is feasible in dogs with severe dysplastic pulmonary valve stenosis, though further study and optimization of the procedure is required.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/25087648/