Screening for hypertrophic cardiomyopathy in cats

Area of Science:

• Veterinary Cardiology
• Canine and Feline Medicine

Background:

• Hypertrophic cardiomyopathy (HCM) is the most prevalent cardiac condition in felines, significantly impacting feline health and longevity.
• Screening for HCM is common in breeding cats, often prompted by heart murmurs, though affected animals may not exhibit overt clinical signs.
• Differentiating subclinical or mild HCM from a normal cardiac phenotype in breeding cats presents diagnostic challenges with significant implications for breeders.

Purpose of the Study:

• To review current screening methodologies for feline hypertrophic cardiomyopathy.
• To highlight the role and nuances of echocardiography in HCM screening protocols for breeding cats.

Main Methods:

• Review of existing literature on feline hypertrophic cardiomyopathy screening.
• Emphasis on echocardiographic techniques and interpretation for HCM detection in asymptomatic cats.

Main Results:

• Echocardiography is a primary tool for assessing cardiac structure and function in HCM screening.
• Challenges in differentiating mild HCM from normal phenotypes require experienced interpretation.

Conclusions:

• Accurate HCM screening in breeding cats is vital for preventing disease transmission and maintaining breed health.
• Echocardiography remains the cornerstone of HCM screening, necessitating standardized protocols and skilled interpretation to manage mild or subclinical cases effectively.