Peer-reviewed veterinary case report
How ultrasound measures predict severity of heart narrowing in dogs
By Oyama, Mark A & Thomas, William P·Published in Journal of the American Animal Hospital Association·2002·Department of Medicine and Epidemiology, United States·View original on PubMed →
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Original publication title: Two-dimensional and M-mode echocardiographic predictors of disease severity in dogs with congenital subaortic stenosis.
- Species:
- dog
Plain-English summary
A study looked at 50 dogs with congenital subaortic stenosis, a heart condition that can cause serious problems. The researchers found that measuring the thickness of the heart's left ventricle helped indicate how severe the disease was, but there was a lot of variation between dogs. They also discovered that comparing the size of the left-ventricular outflow tract to the aortic root provided a clearer picture of disease severity. This method could help veterinarians better assess and manage the condition in affected dogs.
People also search for: dog heart problems · congenital subaortic stenosis in dogs · heart disease severity in dogs
Abstract
Echocardiographic studies from 50 dogs with congenital subaortic stenosis were examined. The degree of concentric, left-ventricular hypertrophy as assessed by M-mode measurement demonstrated a positive relationship (P<0.05) to disease severity. However, the clinical utility of these measures is hindered by a large amount of individual variation (r2=0.243 to 0.473). Two-dimensional ultrasound was used to compare the cross-sectional area of the left-ventricular outflow tract to the cross-sectional area of the aortic root. The ratio of these two areas demonstrated a strong inverse relationship (P=0.001; r2=0.778) with disease severity. This ratio provides a method of estimating severity of disease by two-dimensional echocardiography.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/12022404/