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Hypertrophic Cardiomyopathy (HCM)
CardiovascularCanineFelineNew
Key Points
  • Hypertrophic cardiomyopathy (HCM) is a primary myocardial disease characterised by left ventricular hypertrophy and diastolic dysfunction, with no identifiable underlying cause
  • It is the most common cardiac condition in cats
    • Maine Coons and Ragdoll are predisposed
  • Early disease is generally asymptomatic but clinical signs such as dyspnoea, tachypnoea and lethargy occur when secondary complications arise (CHF, ATE)
  • Echocardiography is required to visualise the HCM phenotype, assess severity and identify complications
  • Recommended treatments vary depending on the stage of disease and complications present
  • Regular monitoring is essential to assess disease progression and ensure treatment is effective
Differential Diagnoses
  1. Hyperthyroidism
  2. Systemic hypertension
  3. Acromegaly
Overview
Aetiology
Clinical Signs
Diagnosis
Treatment
Prevention
Resources
Overview

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Aetiology

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Clinical Signs

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Diagnosis

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Treatment

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Prevention

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Resources

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Educational content only. This factsheet is for general veterinary education and is not a substitute for professional veterinary advice, diagnosis, or treatment. Not for use in an emergency — contact a veterinarian or emergency service. Full disclaimer →