This case report provides the first evidence that acquired mitral stenosis can occur in association with hypertrophic cardiomyopathy in cats, likely due to mechanical friction.
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Alerts clinicians to possible acquired mitral stenosis in feline HCM; leaves open its prevalence and clinical impact pending larger studies.
A seven-year-old castrated male domestic shorthair cat was diagnosed with hypertrophic cardiomyopathy (HCM) and suspected mitral stenosis (MS) based on electrocardiography, thoracic radiographs and echocardiographic findings. Post-mortem examination of the heart revealed morphological features consistent with HCM. In addition, there was marked fibrous deposition on the surfaces of the chordae tendineae extending to both mitral valve leaflets, which caused total chordal fusion into pillars of fibrous tissue and fusion of the commissures. The present case indicates that acquired MS can occur in association with HCM in the cat.
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TAKEMURA et al. (2003) studied this question.
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