Yorkshire Terrier & Heart Disease
Yorkshire Terriers, like other small breeds, are commonly affected by MMVD. The disease typically presents as a heart murmur first detected during a routine veterinary exam. Progression is usually slow, and many Yorkies live comfortably for years with appropriate monitoring. Due to their small body size, even small changes in heart size can be significant, making regular echocardiographic monitoring important.
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Heart conditions in Yorkshire Terriers
Myxomatous Mitral Valve Disease (MMVD)
High riskMMVD is the most common cardiac condition in Yorkshire Terriers, typically developing in middle age and older dogs.
Screening recommendations
Start screening at
5–6 years old (or earlier if murmur detected)
Frequency
Annually once murmur is detected
Recommended tests
Cardiac auscultation, Echocardiogram
Genetic factors
Polygenic inheritance typical of small-breed MMVD. No specific genetic test available.
Common medications
Medications are determined by your veterinarian based on your dog's individual condition. This list represents commonly used medications for this breed's typical cardiac conditions.
Prognosis
Generally favorable. Many Yorkies with Stage B1 MMVD remain stable for years. Their small size means medication dosing requires precision. Most respond well to standard MMVD treatment protocols.
Recommended reading
Other breeds at risk
Disclaimer:This content is for educational purposes only. It is based on published veterinary research and community experience, but is not written by a veterinarian and does not constitute medical advice. Every dog is different. Always consult your veterinarian or a board-certified veterinary cardiologist before making any changes to your dog's care, diet, or treatment plan.