Overview

When your dog visits the veterinary clinic for his annual wellness exam , one of the most important things your veterinarian will do is listen to your hound ’s thorax with a stethoscope . The sound of your dog ’s heart and lungs can give your veterinarian a draw of selective information and can even be an former warning sign of unwellness long before external symptoms seem .

spunk mutter are one of the plebeian go your veterinarian will hear to discover when listening to your blackguard ’s heart . If your veterinarian detects a heart murmur , you will likely have a heap of questions about next footstep and associated price . Unexpected vet bills can trigger stress about how to pay . as luck would have it , there are solutions available that can help , such as theCareCredithealth and pet care reference visiting card . *

What follows is everything you need to know about bosom murmurs in dog , include signs , causes , treatment alternative , and toll to consider .

Vet checking a dog for heart murmur

What Is a Dog Heart Murmur?

A normal heart is often described as making a rhythmical “ lub - dub ” sound . The first “ lub ” sound happens when the first pair of heart valves — call the atrioventricular valve — close as the inwardness muscle contracts . The second “ dub ” sound appears when the second twosome of pump valves — called the semilunar valves — tightlipped and the heart muscle relaxes .

A center murmur is an abnormal strait that can go on before , after , or during these normal “ lub - dub ” sounds . The murmur is due to unorthodox or turbulent blood stream through the heart . The exact timing and sound of the murmur can vary depending on the implicit in disease .

Some murmurs make a whooshing sound , while others may make a clicking noise , or even a high - flip , almost melodious sound .

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Veterinarians sort out heart murmurs free-base on their timing relative to the normal heart go , their meretriciousness , and the point of maximal intensity — the domain of the chest where the murmur is heard most clearly . These categorisation can avail the veterinarian key out the underlying causal agent of the grumbling .

Heart Murmur Gradesin Dogs

If your bounder is diagnose with a heart murmur , your veterinary surgeon may assign the murmur a numerical gradation . The score of murmur is a useful classification pecker and can also be used to monitor any changes in your dog ’s heart murmur over time . nitty-gritty murmuring are graded on a scale of 1 - 6 , depending on the loudness of the murmur .

It is very important to remember that heart murmur grade is ONLY a measure of how loud the murmur is and does not needs correlate to the severity of the underlying disease .

Some crushed - class murmurs can be life story - lowering , while high - grade murmurs can sometimes be benign . Further testing will be necessary to determine the significance of your firedog ’s heart murmur .

veterinarian grading dog heart murmur

Symptomsof Heart Murmurs in Dogs

A heart murmur is not a condition in and of itself , but rather a symptom of an rudimentary disease or desert affecting the heart . Many dogs with heart murmurs have no other symptoms , and they are sometimes notice during routine forcible exams .

When firedog with heart murmur develop symptom , it is usually due to the progression of the underlying disease .

bounder with malady affecting the heart may show symptom such as :

Tired dog looking out window

WhatCausesHeart Murmurs in Dogs?

A inwardness mutter is stimulate by abnormally turbulent rake flow through the meat . Some fondness mussitation can occur in healthy dogs or puppy and do not cause any problems . These are commonly do it as “ innocuous ” or “ physiologic ” cardiac murmur . In puppies , an innocent mutter may resolve on its own as the puppy grows .

More commonly , a heart grumble is due to an underlying sickness or structural blemish in the heart . Some structural lawsuit of tenderness murmurs are innate , meaning that the dog was born with a structural defect in the heart .

Other types of philia disease leading to a murmur may be acquired or modernise as a dog age . These include conditions such asdilated cardiomyopathy ( DCM)and myxomatous mitral valve disease ( MMVD ) . These conditions can pass in any dog , but some breeds — includingBoston Terriers , Cavalier King Charles Spaniels , Chihuahuas — are genetically predisposed to them .

Veterinarian taking dog blood work

In some cases , a heart murmur may be have by factors outside the heart . For example , heel on poor quality diets may develop nutritional cardiomyopathy due to a inadequacy of sure nutrients . Other systemic conditions such as anemia or severe infections can also get a meat murmur in blackguard .

Diagnosing Your DogWith a Heart Murmur

Most sum murmurs are name by auscultation , which is when your veterinarian listens to your hound ’s bureau with a stethoscope . However , in most cases , additional diagnostic examination will be needed to determine the rudimentary grounds of the murmur .

Your veterinarian may recommend some or all of the watch over test to help evaluate your hotdog ’s heart :

line Work . A complete blood reckoning and biochemistry panel will be performed to look for conditions such as anaemia , contagion , and hypoproteinemia , which may induce essence murmurs . Blood work also allow your veterinarian to determine whether other reed organ system have been affected by the alteration in the heart .

Man hugging dog

Radiography . Your veterinarian may commend taking X - rays of your dog ’s chest of drawers to evaluate the size of it , shape , and structure of your dog ’s heart . Other organ scheme that can be dissemble by nub disease , such as the lungs and the liver , can also be examined on an X - electron beam .

Echocardiography . An echocardiogram or “ replication ” is an sonography of your dog ’s heart . This allows your veterinary surgeon to visualize the structures of your dog ’s heart , such as the bedchamber and valves . The effort of blood through the sum is also study . An echo is ordinarily the diagnostic exam of alternative for determining the hardship and import of your dog ’s heart murmur .

Electrocardiogram . An EKG — also known as an electrocardiogram or ECG — measures the electric activity of the heart and plot this activity on a graph . This test can help identify abnormal heart calendar method and enlargement of the center which may be associated with a heart murmuring .

Heart MurmurTreatmentfor Dogs

Because a heart murmur is usually a symptom of fundamental heart disease , veterinary surgeon typically do not treat the murmur itself . Instead , intervention is direct at counterbalance or managing the rudimentary disease .

calculate on the disease , treatment may involve medication , surgery , or a compounding of the two .

If the disease is modest and your dog has no other symptoms , your vet may even commend postponing treatment and continuing to supervise the spirit murmur until the disease progresses .

Medications for Dog Heart Murmurs

Treatment of kernel condition in dogs typically involves a combination of several medications to improve heart function and get by symptoms . Commonly used medications include :

Diuretics . Diuretics , such as furosemide , are sometimes referred to as pee pills because they assist remove excess fluid from the body . diuretic drug are in particular important in dogs with congestive gist failure .

ACE Inhibitors . ACE inhibitors expound blood line vessels , lowering the blood pressure and reducing the work load on a dog ’s heart . These are typically used in dogs with congestive bosom unsuccessful person .

genus Beta - Blockers . genus Beta - blockers , such as atenolol , may be used to slow down the essence rate and reduce the oxygen demand of the meat . In some cases , they may also be used to govern unnatural heart rhythms .

Calcium Channel Blockers . Calcium channel blockers are often prescribed for dogs with abnormal heart rhythms . They may also be used to slow the heartbeat and do relaxation of the kernel muscle .

Pimobendan . Pimobendan is a veterinary - specific drug that is used to facilitate a dog ’s heart pump more effectively . In some shell , it may slow the onward motion of nub disease and delay the oncoming of congestive heart and soul failure .

Some cases of heart disease may also be care for with dietetic management . Patients with congestive spirit failure may be put on a special low - sodium diet to thin fluid accumulation .

If your cad ’s warmness disease was due to a nutritionary deficiency , a variety in dieting or the improver of supplement such as taurine may be recommended .

General Cost to Treat Heart Murmurs in Dogs

The cost to handle sum disease in dogs varies widely bet on the type and hardship of the disease and monthly medication your dog may need . On median , the monetary value of treating a heart murmur in dogs is $ 1,200 for the first twelvemonth , according to Pets Best take data.1

On fair , the toll of treat a heart murmur in dogs is $ 1,200 for the first twelvemonth . ”

On the other hand , some nitty-gritty term , such as congenital shortcoming , can not be managed with medicament alone and may require surgery . Cardiac surgery is highly encroaching and often requires specialised care . Pet owners act on surgery should await to spend several thousand dollars on handling .

A preferred health insurance plan can aid offset some of the cost of treating your ducky ’s heart condition , but it may not cover everything . TheCareCreditcredit card is another good tool to consider . It tolerate you to pay over time with flexible financing pick * , it can be used for any type of care your pet needs — include medications and surgeries — and it ’s accept at most veterinary hospitals * * .

How to PreventHeart Murmurs in Dogs

Most causes of heart murmurs can not be forbid . However , just like in humans , factors such as obesity , poor dieting , and deficiency of exercise can increase a dog ’s risk of developing heart disease .

keep your dog on a high - quality , commercially organize diet and control portions to maintain a healthy , lean body free weight can assist reduce your dog ’s risk of developing heart disease and many other illnesses subsequently in biography .

1Pets Best claims data point from 2017 – 2021 for average first class experimental condition toll .

  • Subject to course credit approval . See carecredit.com for details .

    • Internal appraisal based on in public available market sizing information , as of Feb 2023

This selective information is shared solely for your contraption . Neither Synchrony nor any of its affiliate , including CareCredit , make any representations or warranties regarding the products described , and no endorsement is mean . You are urged to confer with your individual veterinary with respect to any professional advice presented .