Peer-reviewed veterinary case report
Right side heart changes in cats with hypertrophic cardiomyopathy
By Schober, K E et al.·Published in Journal of veterinary cardiology : the official journal of the European Society of Veterinary Cardiology·2016·Department of Veterinary Clinical Sciences, United States·View original on PubMed →
PetCaseFinder translated the abstract of this peer-reviewed paper into plain English so pet owners can read it. We do not publish original research — every detail traces back to the citation above. How we work →
Original publication title: Right ventricular involvement in feline hypertrophic cardiomyopathy.
- Species:
- cat
Plain-English summary
A group of cats with hypertrophic cardiomyopathy (HCM), a heart condition that causes thickening of the heart muscle, was found to have increased thickness in the right side of their hearts. Out of 200 cats with HCM, nearly half showed signs of right ventricular hypertrophy, which can worsen their overall heart condition. The study found that the thickness of the right ventricle was linked to how severe the left side of the heart was affected and whether the cat had symptoms of heart failure. This information can help veterinarians assess the heart health of cats with HCM and tailor treatments accordingly.
People also search for: cat heart disease symptoms · hypertrophic cardiomyopathy in cats · treatment for cat heart failure
Abstract
OBJECTIVES: To evaluate right ventricular (RV) wall thickness and chamber dimensions in cats with hypertrophic cardiomyopathy (HCM). ANIMALS: One hundred fifty-one healthy control cats and 200 cats with HCM. METHODS: Retrospective, observational, clinical cohort study. Two-dimensional echocardiograms from all cats were analyzed. Right atrial diameter, RV free wall thickness, and RV chamber diameter were quantified using multiple imaging views. Conventional (mean ± 2 standard deviations) and allometrically scaled (Y = a × M) reference values were determined in normal cats and compared to values found in cats with HCM. Linear and logistic regression, multivariate regression, and mixed model analysis were performed to identify associations between RV wall thickness and severity of left ventricular (LV) hypertrophy, clinical severity of HCM, and presence of pleural effusion. RESULTS: Mean RV wall thickness was increased in HCM (p<0.001). Considering increased RV wall thickness in at least one segment, 94 (47%) and 112 (56%) cats with HCM had RV hypertrophy using upper reference limits based on mean + 2 standard deviations or allometric scaling, respectively. There was an association between severity of LV and RV hypertrophy (p<0.05). Left-sided congestive heart failure (n = 58) was associated with increased RV wall thickness in all segments compared to cats with preclinical HCM (p<0.001). Body weight had negligible effects on RV wall thickness (R0.08-0.17, p<0.001), whereas age and breed had no effect (p>0.05) in control cats. CONCLUSIONS: Increased RV wall thickness is common in cats with HCM and relates to severity of LV hypertrophy and clinical status.
Find similar cases for your pet
PetCaseFinder finds other peer-reviewed reports of pets with the same symptoms, plus a plain-English summary of what was tried across them.
Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/27667689/