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Heart Murmur in Dogs and Cats

Pet supplements for heart murmur in dogs and cats.

Heart Murmurs

Herbal nutrition to help support symptoms of heart murmurs and to help provide preventative supports for canine and feline cardiomyopathy.

The heart is at the center of the cardiovascular system providing critical nutritional support to the cardiovascular system and other related organs including the liver, kidneys, and immune and digestive system. Nutrition also helps support optimal cardiac function and muscle cell healing and regeneration, which is especially critical in senior and convalescing pets or those who have been diagnosed with a heart condition.

Murmurs are an abnormal sound of the heart, are often audible and are usually produced in the form of extra heart vibrations due to a disturbance in blood flow.

Murmurs are classified according to their timing and other characteristics, including systolic murmurs, when the heart muscle contracts; diastolic murmurs, when the heart muscle relaxes between beats; and continuous and to-and-fro murmurs which occur throughout all or most of your pet's cardiac cycle.

The symptoms associated with murmurs depend on a variety of characteristics, including their grade, configuration, and location.

If the murmur is associated with structural heart disease, your dog or cat may display signs of congestive heart failure such as coughing, weakness, or exercise intolerance. If your pet displays such conditions, have your vet check your pet immediately.

Grading Scale for Murmurs

Grade I—barely audible

Grade II—soft, but easily heard with a stethoscope

Grade III—intermediate loudness; most murmurs which are related to the mechanics of blood circulation are at least grade III

Grade IV—loud murmur that radiates widely, often including opposite side of chest

Grade V—very loud, audible with stethoscope barely touching the chest; the vibration is also strong enough to be felt through the animal's chest wall

Grade VI—very loud, audible with stethoscope barely touching the chest; the vibration is also strong enough to be felt through the animal's chest wall

Crescendo-decrescendo murmurs get louder and then softer and are typical of ejection murmurs due to turbulent forward flow.

Decrescendo murmurs start loud and then get softer and are typical of diastolic murmurs.

Plateau murmurs have uniform loudness and are typical of blood regurgitation through an abnormal valvular orifice (regurgitant murmurs).

Murmurs are caused by:

Interrupted blood flow

Flow disturbances associated with outflow obstruction or diseased

Flow disturbances associated with regurgitant flow

Damage or defect in the septum wall

Diseases and conditions that can directly result in heart murmurs

Systolic Murmurs



Heartworm disease

Mitral and tricuspid valve heart failure

Cardiomyopathy and aortic valve insufficiency

Mitral and tricuspid valve dysplasia

Systolic anterior mitral motion (SAM)

Dynamic right ventricular outflow obstruction

Dynamic subaortic stenosis

Aortic stenosis

Pulmonic stenosis

Atrial and ventricular septal defect

Tetralogy of Fallot

Mitral and tricuspid valve endocarditis (inflammation of the inner part of the heart)

Continuous or To-and-Fro Murmurs

Patent ductus arteriosus

Ventricular septal defect with aortic regurgitation

Aortic stenosis with aortic regurgitation

Diastolic Murmurs

Mitral and tricuspid valve stenosis

Aortic and pulmonic valve endocarditis (inflammation of the inner layer of the heart)

There are a number of things that you can do to support heart health in your pet and these include:

Feed your pet high quality, home cooked, raw or premium all natural diet that contains the proper ratio of proteins, essential vitamins, minerals, antioxidants and nutrients for any known conditions

Encourage moderate, regular exercise to keep your dog and cat active which helps stimulate the lymphatic system

Maintain a healthy weight in your pet. Overweight and obese dogs and cats are at a greater risk of heart disease, just lke people. 

Provide clean, filtered water daily. Most tap water contains flouride, pesticides and other chemicals that create toxic burdens in our pets. 

Limit toxin exposure to smoke and chemicals in your house found in candles, dryer sheets, laundry detergents and cleaners

Make and take time to show love and praise to your dog and cat and reduce stress and anxiety in your pet's daily routine.

Add an immune boosting/balancing to your pet's diet to encourage immune health

Consider adding an adaptogenic herb, which is able to identify dysfunction in body systems and helps nutritionally bridge health deficiencies.

Make sure that your pet is treated for heartworm infection

Check and clean your pet's teeth regularly, as dental health is tied to cardiovascular, digestive and immune health

Visit your vet regularly for routine check ups

Organic Remedies - (listed in order of relevance and recommendation by holistic vets)

Herbal nutrition can be used as supportive and adjunctive therapies to conventional therapies, depending on the health and wellness of your animal. Herbal remedies have been used for millennia as a cardio tonic, to help improve the heart and circulatory systems, including healthy circulation and strong blood vessels, to help encourage cell regeneration and capillary health and strength, to help support healthy blood pressure, and for their overall benefits to help support the heart, circulatory and nervous systems.

Kick Start My Heart  (learn more)  is used holistically as an adjunctive cardio tonic to help address symptoms related to all types of Heart Disease once diagnosed, including Cardiomyopathy, Valvular Heart Disease, Congestive Heart Disease; may help to improve the heart and circulatory systems by strengthening heart muscles and blood flow throughout the body; may help to reduce the risk of heart disease by maintaining heart health, including muscle and cell healing and support of cell walls and arterial blood pressure, for all parts of the body including the brain; may help to protect cell walls and to support strong blood vessels; may help to support the strength of veins and arteries and as a cognitive tonic; may help to stimulate alpha brain waves, critical to heart function; and for its overall toning effects on the heart, circulatory and nervous systems. 

Easy Flow – (learn more) helps support circulatory and lymphatic function to aid in toxin elimination in the body; encourages blood flow to remove waste products from the body which may help promote cardiac and circulatory function and may help reduce the risk of heart disease by maintaining hearth health; supports the strength of veins, arteries, heart, muscle cell healing and regeneration, for hypertension; supports healthy blood circulation to the brain; may help address symptoms of  varicose veins, aching joints and heavy, swollen legs; may help address symptoms of degenerative diseases including arteriosclerosis and atherosclerosis, Heart Disease, Congestive Heart Disease, Cardiomyopathy, Valvular Heart Disease, Endocardiosis, Ischemic Heart Disease, Hypertrophic Cardiomyopathy by toning the cardiovascular system; may help fight infections related to heart; for mild heart arrhythmias and as a stroke preventative.

Don’t Go Breaking My Heart  (learn more) is used holistically as an adjunctive and preventative to heart disease, helping provide nutrients that reduce blood pressure, cholesterol, and the risk of coronary cardiac heart and coronary disease; removes fat from arterial walls; may help combat degenerative diseases including arteriosclerosis and atherosclerosis; helps support cardiac and circulatory function; helps support the strength of veins, arteries and healthy blood circulation to the brain; helps balance blood sugar levels, critical for pets with diabetes; for hypertension; used holistically to help address Heart Disease, Congestive Heart Disease (CHD), Cardiomyopathy, Valvular Heart Disease, Endocardiosis, Ischemic Heart Disease, Hypertrophic cardiomyopathy and as a stroke preventative.

Shake Ur Groove Thing  (learn more) promotes healthy bowel function, purification, gentle parasitic detoxification and body clarification; waste and toxin removal, including pesticides, environmental toxins found inside and outside the home, chemicals related to flea and tick products and drugs regimens such as NSAID’s and synthetic glucosteriods and corticosteroids; helps remove inorganic synthetic and derivative compounds from an animal’s cell walls to help reduce toxic load in the body; also used for cramping, pain, constipation, gas and bloating; helps support a correct balance of native intestinal flora and helps calms the digestive system; promotes immune balance and helps to limit inflammation, which is important in disease prevention; used holistically for anal fissures, fistulas, hemorrhoids, food allergies and hypersensitivities and as a general skin support.  

Conventional Remedies:

Your veterinarian will need to differentiate between a wide range of abnormal heart sounds, including split sounds, ejection sounds, gallop rhythms, and clicks. A distinction must also be made between abnormal lung and heart sounds, as well as listens to the timing of abnormal sounds against respiration or heartbeat.

A complete blood count is one of the preferred methods for confirming anemic murmurs. A variety of tests will be conducted including chest X-rays, Doppler studies, and echocardiography to determined the location and radiation of the murmur, as well as the timing during cardiac cycle.

Unless heart failure is evident, your dog will be treated as an outpatient.  Puppies with low grade murmurs, for example, may require little or no treatment and the murmur may resolve itself within six months. Routine diagnostic imaging is recommended for dogs with murmurs.


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