Key result
Maximal left ventricular outflow tract velocity (LVOTV) significantly correlated with cardiac troponin I (cTnI) levels in cats with hypertrophic cardiomyopathy.
Why the study?
LVOTO is a poor prognostic factor in human HCM, but has been reported not to contribute to prognosis in cats with HCM.
Observational
Hypertrophic cardiomyopathy (HCM) is the most common cardiac disease in cats. HCM is classified into obstructive HCM (HOCM) and non-obstructive HCM (HNCM) forms based on the presence or absence of left ventricular outflow tract obstruction (LVOTO). In humans, LVOTO is a known poor prognostic factor and a target for therapeutic intervention. In contrast, LVOTO has been reported not to contribute to prognosis in cats. This study demonstrated significant correlations between cTnI levels and a maximal LV outflow tract velocity (LVOTV). This finding suggests that LVOTO is associated with myocardial cell injury.
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Satomi et al. (2025) conducted an observational in Hypertrophic cardiomyopathy (HCM) in cats. Left ventricular outflow tract obstruction (LVOTO) vs. Absence of LVOTO (non-obstructive HCM) was evaluated on Correlation between cardiac troponin I (cTnI) levels and maximal LV outflow tract velocity (LVOTV). Maximal left ventricular outflow tract velocity (LVOTV) significantly correlated with cardiac troponin I (cTnI) levels in cats with hypertrophic cardiomyopathy.
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