Peer-reviewed veterinary case report
Heart function measured by echo in dogs with mitral valve disease
By Mantovani, M M et al.·Published in The Journal of small animal practice·2015·Department of Veterinary Medicine, Brazil·View original on PubMed →
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Original publication title: Systolic cardiac function assessment by feature tracking echocardiography in dogs with myxomatous mitral valve disease.
- Species:
- dog
Plain-English summary
A group of small- and medium-sized dogs with myxomatous mitral valve disease, a common heart problem, were evaluated to see how their heart function changed as the disease progressed. The study found that dogs in the later stages of the disease had lower heart function measurements compared to those in earlier stages, indicating that their hearts were struggling more. This advanced imaging technique could help veterinarians monitor heart function and detect worsening conditions in dogs with this disease. Early detection and monitoring can lead to better management and treatment options for affected dogs.
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Abstract
OBJECTIVES: To evaluate endomyocardial and epimyocardial left ventricular circumferential and longitudinal peak systolic strain and strain rate in dogs with myxomatous mitral valve disease using two-dimensional feature tracking imaging echocardiography. MATERIALS AND METHODS: Epimyocardial and endomyocardial global and regional myocardial peak systolic strain and strain rate using two-dimensional feature tracking imaging were evaluated in healthy dogs and those in stages B1, B2 and C of myxomatous mitral valve disease. Strain and strain rate in circumferential and longitudinal aspect were evaluated in 48 small- and medium-sized dogs. RESULTS: Global endomyocardial circumferential strain and global epimyocardial circumferential strain systolic peak were lower in stage C than in stage B2 (P = 0 · 04 and P = 0 · 02) and similar to healthy dogs. Endomyocardial circumferential strain rate in septal and inferior segments were lower in stage C compared to B2 (P = 0 · 0007 and P = 0 · 0056), but not different from healthy dogs. There were no statistical differences in the epimyocardial circumferential strain rate, longitudinal strain and strain rate between healthy and affected dogs. CLINICAL SIGNIFICANCE: Two-dimensional feature tracking imaging determination of myocardial deformation in epimyocardial and endomyocardial layers allows detection of increased compensatory circumferential left ventricular myocardial systolic performance due to volume overload and absence of this response as disease advances to congestive heart failure.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/25833040/