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Heart Murmur - vet costs and insurance

Heart Murmur in Dogs - symptoms, vet costs & insurance

A heart murmur is an abnormal sound during heartbeat - diagnosis costs $500-$2,000, medication $50-$200/month. Not all murmurs mean disease. Puppies often outgrow innocent murmurs. In adults, murmurs are graded I-VI and may signal valve disease, cardiomyopathy, or other conditions. Here's what diagnosis and treatment actually costs.

  1. Key Facts & Real Vet Costs
  2. Insurance Traps
  3. Common Questions

Key Facts & Real Vet Costs

What Causes Heart Murmurs

Turbulent blood flow heard with a stethoscope. Common causes: mitral valve disease (small breeds), dilated cardiomyopathy, congenital defects, heartworm. Innocent puppy murmurs usually disappear by 4-5 months. Graded I-VI by intensity

Symptoms - What to Watch For

Low-grade murmurs often cause no symptoms. As heart disease progresses: coughing (night), exercise intolerance, rapid breathing, fainting, swollen belly, bluish gums. Low-grade murmurs may have no visible symptoms

Diagnosis - $500-$2,000

Vet exam ($50-$100) detects murmur. Echocardiogram ($300-$600) is key-an ultrasound of heart structure. Chest X-rays ($200-$400), blood work ($100-$300), ECG ($100-$250). Average $500-$2,000

Treatment - $50-$200/Month Ongoing

Innocent puppy murmurs need no treatment. For heart disease: ACE inhibitors, furosemide, pimobendan-$50-$200/month. Severe cases need specialist visits every 3-6 months. Surgery: $5,000-$20,000. Average $50-$200/month medication

Total Cost - $500-$2,000+ Diagnosis

Initial workup plus ongoing meds. Annual monitoring adds $300-$600/year. Surgery cases reach $5,000-$20,000.

Small Breeds - Higher Risk

Cavalier King Charles Spaniels, Dachshunds, Chihuahuas, and Miniature Poodles are most prone to mitral valve disease.

Prognosis - Varies Widely

Innocent murmurs resolve on their own. Managed valve disease dogs can live years with medication. Prognosis depends on the cause.

Prevention

Regular vet checkups to catch murmurs early. Heartworm prevention. Maintain healthy weight. Annual exams are key.

Red flags
Insurance Traps

Cardiac conditions are expensive long-term - here's how insurance handles heart murmurs and heart disease.

Waiting period Cardiac Coverage Basics
Most pet insurance covers heart conditions (echocardiograms, medications, specialists) unless detected before enrollment. Echocardiograms are expensive-insurance provides real value. Standard 14-day illness waiting period applies to cardiac claims.
Pre-existing The Pre-Existing Murmur Problem
If a murmur was noted before your policy started, all heart claims likely denied as pre-existing. A major issue with breeds predisposed to heart disease. Insure young, healthy dogs early.
Chronic condition Ongoing Medication Coverage
Heart meds cost $50-$200/month-$600-$2,400 yearly for life. Most plans cover medications but check for per-condition caps limiting long-term cardiac coverage. Some cover meds but not recurring specialist echocardiograms.
Exclusion Breed-Specific Exclusions
Some insurers add breed-specific exclusions for conditions affecting certain breeds. Cavalier King Charles Spaniels may face cardiac exclusions or higher premiums.

Common Questions

What is a heart murmur in dogs?
An abnormal whooshing sound from turbulent blood flow. Murmurs aren't disease-they signal something else, from harmless (innocent puppy murmurs) to serious (valve degeneration, cardiomyopathy).
How are heart murmurs graded in dogs?
Graded I-VI by loudness. Grade I barely audible. Grades II-III soft to moderate. Grades IV-V loud with chest vibration. Grade VI loudest. Higher grade doesn't always mean worse disease but warrants investigation.
Do puppies outgrow heart murmurs?
Many do. Innocent murmurs (Grade I-II) often disappear by 4-5 months. Congenital defects cause murmurs that won't resolve. Your vet should monitor at each puppy visit.
How much does an echocardiogram cost for a dog?
Echocardiogram costs $300-$600 at general practice, $400-$800 at cardiology specialist. Shows chamber size, valve function, blood flow, muscle thickness. Sedation adds $50-$100.
What medications are used for heart disease in dogs?
Common: pimobendan (strengthens contractions), furosemide (removes fluid), enalapril/benazepril (ACE inhibitors), spironolactone. Combination depends on disease type and severity. Monthly costs $50-$200.
Can a dog live a normal life with a heart murmur?
Many do-especially with innocent or low-grade murmurs. With medication, heart disease dogs maintain good quality of life for years. Key: early detection, consistent medication, regular echocardiogram monitoring.
What are the signs of heart failure in dogs?
Persistent coughing (night), rapid breathing at rest, extreme exercise reluctance, fainting, swollen abdomen, bluish gums, weight loss. See your vet urgently-heart failure needs immediate treatment adjustment.
Does pet insurance cover heart murmur treatment?
Most policies cover diagnosis and treatment as standard illness coverage. Catch: murmurs detected before enrollment denied as pre-existing. Long-term medication coverage varies-some plans have annual or per-condition caps.
Marcel Janik, founder of RealVetCost
Marcel Janik Founder of realvetcost.com

My mother-in-law took her German boxer to the veterinary emergency room - $1,200 in tests, no answers. A different vet solved it in minutes with $8 pills.

Sources

Research and data used to compile this profile.

  1. 1 Keene BW, Atkins CE, Bonagura JD, et al. ACVIM consensus guidelines for the diagnosis and treatment of myxomatous mitral valve disease in dogs. J Vet Intern Med. 2019;33(3):1127-40.
  2. 2 Pedersen HD, Häggström J, Falk T, et al. Auscultation in mild mitral regurgitation in dogs: observer variation, effect of physical maneuvers, and agreement with color Doppler echocardiography and phonocardiography. J Vet Intern Med. 1999;13(1):56-64.