Peer-reviewed veterinary case report
Diastolic heart function changes in dogs with dilated cardiomyopathy
By Garncarz, M A·Published in Polish journal of veterinary sciences·2007·Faculty of Veterinary Medicine·View original on PubMed →
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Original publication title: Echocardiographic evaluation of diastolic parameters in dogs with dilated cardiomyopathy.
- Species:
- dog
Plain-English summary
A group of dogs with dilated cardiomyopathy (DCM), a serious heart condition, underwent echocardiography to assess their heart function. The tests showed that dogs with DCM had significant differences in certain heart function measurements compared to healthy dogs, indicating both systolic (pumping) and diastolic (filling) dysfunction. This means that as DCM progresses, it affects how well the heart can both pump blood and fill with blood. Understanding these changes can help veterinarians better diagnose and manage heart disease in dogs.
People also search for: dog heart disease symptoms · dilated cardiomyopathy in dogs treatment · echocardiogram for dog heart problems
Abstract
Echocardiography is a valuable tool for the evaluation of systolic and diastolic cardiac function. A high correlation between measurements of diastolic mitral inflow parameters analyzed with Doppler echocardiography and invasive methods makes the former valuable. The aim of this study was to ascertain if significant differences occur in diastolic myocardial parameters between dogs with no heart disease and dogs with subclinical or clinical dilated cardiomyopathy. Furthermore the aim of the study was to determine whether heart failure in dilated cardiomypathy is a result of systolic dysfunction alone or both systolic and diastolic dysfunction. Eleven parameters were analyzed: E wave, E-AT, E-DT, E time, A wave, A-AT, A-DT, A time, E+A time, E/A ratio, and IVRT. The study confirmed the value of noninvasive echocardiographic assessment of diastolic function in dogs with dilated cardiomyopathy. Significant differences were found in E wave, E-AT, E time, E/A ratio and IVRT between healthy dogs and dogs with dilated cardiomyopathy. All are characterized by a significant decrease compared to healthy dogs after taking into account age and body weight except for the E/A ratio, which significantly increased in value. There were no significant changes in any of the Doppler parameters for diastolic evaluation in subclinical cases of DCM. Advanced heart failure in dilated cardiomyopathy entails systolic and diastolic dysfunction.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/18198536/