Peer-reviewed veterinary case report
Dynamic left heart obstruction in young dogs treated with beta
By Connolly, D J & Boswood, A·Published in The Journal of small animal practice·2003·Department of Veterinary Clinical Sciences·View original on PubMed →
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Original publication title: Dynamic obstruction of the left ventricular outflow tract in four young dogs.
- Species:
- dog
Plain-English summary
Four young dogs were brought in because their owners noticed heart murmurs on the left side. After tests, the vets found that these dogs had a condition called dynamic left ventricular outflow tract obstruction, which can affect how blood flows from the heart. All four dogs were treated with a medication that helps the heart function better, and follow-up exams showed that their heart issues had nearly resolved. While it's unclear if the treatment or natural growth helped, the dogs are now doing much better.
People also search for: dog heart murmur treatment · young dog heart problems · dynamic left ventricular outflow tract obstruction in dogs
Abstract
Four young dogs presented for evaluation of left-sided systolic heart murmurs all showed echocardiographic changes consistent with dynamic left ventricular outflow tract (LVOT) obstruction and subjective evidence of concentric left ventricular hypertrophy. In three of the dogs, abnormal mitral valve apparatus and systolic anterior motion of the anterior mitral valve leaflet with associated mitral insufficiency were also detected. All dogs were medicated with a beta1-adrenergic antagonist. Subsequent examinations showed that the dynamic LVOT obstruction and left ventricular concentric hypertrophy had almost completely resolved. Dynamic LVOT obstruction is a rare condition of young dogs of different breeds. The precise aetiology of the condition remains uncertain. Whether resolution of the outflow obstruction in these four cases was a consequence of treatment or due to changes in ventricular architecture brought about by ageing cannot be established.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/12866931/