Mitral Valve Disease in Whippet
Learn about Mitral Valve Disease in Whippet. Risk level: High. Onset: Senior. Comprehensive guide to symptoms, diagnosis, treatment options, and prevention strategies.
Breed-Specific Risk Profile
| Risk Level | High |
|---|---|
| Typical Onset | Senior |
| Hereditary | No |
| Screening Recommended | No |
About Mitral Valve Disease
Myxomatous Mitral Valve Disease (MMVD) is the most common acquired heart disease in dogs, accounting for approximately 75% of all canine heart disease. The mitral valve leaflets undergo progressive myxomatous degeneration, becoming thickened and distorted, leading to valve incompetence (regurgitation) and eventually congestive heart failure.
Category: Cardiovascular
Severity: Moderate to Severe
Symptoms to Watch For in Your Whippet
- Heart murmur (often detected years before symptoms)
- Coughing (especially at night or with excitement)
- Exercise intolerance
- Rapid breathing
- Fainting (syncope)
- Abdominal distension
- Weight loss
- Restlessness at night
Causes
Progressive myxomatous degeneration of valve tissue with genetic predisposition. The valve leaflets accumulate glycosaminoglycans, becoming thickened, elongated, and incompetent. Small breeds are most commonly affected. Cavalier King Charles Spaniels have particularly early onset and high prevalence.
Diagnosis
Cardiac auscultation (left apical systolic murmur, graded I-VI). Echocardiography for staging (ACVIM stages A-D): valve morphology, chamber dimensions, regurgitation severity. Thoracic radiographs for heart size and pulmonary edema. NT-proBNP as biomarker.
Treatment Options
Stage B1 (murmur, no enlargement): monitoring. Stage B2 (enlargement): pimobendan to delay heart failure onset. Stage C (heart failure): pimobendan, furosemide, ACE inhibitor (benazepril/enalapril). Stage D (refractory): additional diuretics, sildenafil. Mitral valve repair surgery at specialized centers.
Prevention for Whippet
Breeding programs with cardiac screening (echocardiography at age 5+ for Cavaliers). Avoiding breeding of dogs with early-onset murmurs. No proven dietary or lifestyle prevention.
Prognosis
Stage B1: many dogs live years without progression. Stage B2 with pimobendan: median 1300+ days to heart failure. Stage C with treatment: median survival 6-14 months. Stage D: weeks to months. Surgical repair can be curative.
Other Breeds Affected by Mitral Valve Disease
Besides Whippet, these breeds are also predisposed to Mitral Valve Disease:
- Cavalier King Charles Spaniel (High risk)
Frequently Asked Questions
Is Mitral Valve Disease common in Whippet?
Yes, Whippet has a high risk for Mitral Valve Disease. Typical onset is during the senior stage.
What are the symptoms of Mitral Valve Disease in Whippet?
Common symptoms of Mitral Valve Disease in Whippet include: Heart murmur (often detected years before symptoms), Coughing (especially at night or with excitement), Exercise intolerance, Rapid breathing, Fainting (syncope), Abdominal distension. Watch for these signs and consult your veterinarian promptly.
How is Mitral Valve Disease treated in Whippet?
Stage B1 (murmur, no enlargement): monitoring. Stage B2 (enlargement): pimobendan to delay heart failure onset. Stage C (heart failure): pimobendan, furosemide, ACE inhibitor (benazepril/enalapril). Stage D (refractory): additional diuretics, sildena...
Can Mitral Valve Disease be prevented in Whippet?
Breeding programs with cardiac screening (echocardiography at age 5+ for Cavaliers). Avoiding breeding of dogs with early-onset murmurs. No proven dietary or lifestyle prevention.
Should I screen my Whippet for Mitral Valve Disease?
Regular veterinary check-ups are always recommended. Ask your vet about specific screening tests based on your Whippet's age and health history.