Peer-reviewed veterinary case report
Early heart muscle problems in cats with muscular dystrophy detected
By Chetboul, Valérie et al.·Published in Journal of veterinary internal medicine·2006·National Veterinary School of Alfort, France·View original on PubMed →
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Original publication title: Tissue Doppler imaging for detection of radial and longitudinal myocardial dysfunction in a family of cats affected by dystrophin-deficient hypertrophic muscular dystrophy.
- Species:
- cat
Plain-English summary
A family of cats with a genetic condition called hypertrophic muscular dystrophy (HFMD) was studied to see if a special imaging technique could detect heart problems earlier than standard methods. Seven cats from this family, including two adult males and a young kitten, were examined using both regular echocardiography and a more advanced technique called tissue Doppler imaging (TDI). While traditional methods didn't show any heart muscle thickening, TDI revealed heart function issues in all affected cats, suggesting it is better for spotting early heart problems. This means TDI could help veterinarians diagnose heart issues in cats sooner, even before symptoms appear.
People also search for: cat heart problems · hypertrophic cardiomyopathy in cats · tissue Doppler imaging for cats
Abstract
Diagnosis of feline hypertrophic cardiomyopathy currently is based on the presence of myocardial hypertrophy detected using conventional echocardiography. The accuracy of tissue Doppler imaging (TDI) for earlier detection of the disease has never been described. The objective of this sudy was to quantify left ventricular free wall (LVFW) velocities in cats with hypertrophic muscular dystrophy (HFMD) during preclinical cardiomyopathy using TDI. The study animals included 22 healthy controls and 7 cats belonging to a family of cats with HFMD (2 affected adult males, 2 heterozygous adult females, one 2.5-month-old affected male kitten, and 2 phenotypically normal female kittens from the same litter). All cats were examined via conventional echocardiography and 2-dimensional color TDI. No LVFW hypertrophy was detected in the 2 carriers or in the affected kitten when using conventional echocardiography and histologic examination, respectively. The LVFW also was normal for 1 affected male and at the upper limit of normal for the 2nd male. Conversely, LVFW dysfunction was detected in all affected and carrier cats with HFMD when using TDI. TDI consistently detects LVFW dysfunction in cats with HFMD despite the absence of myocardial hypertrophy. Therefore, TDI appears more sensitive than conventional echocardiography in detecting regional myocardial abnormalities.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/16734102/