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Board Certified Cardiologists are veterinarians who have received advanced training after veterinary school in the diagnosis and management of diseases and conditions that affect the heart, lungs, and the vascular system in animals. They have typically completed one or more internships and a 3-5 year residency in an approved program. In addition, they have passed numerous exams and received certification by the American College of Veterinary Internal Medicine in Cardiology, a certification that only those with the most extensive training and education can receive. In other words, they are individuals who have dedicated years of their life to study and practical training in their chosen specialty far beyond what a typical graduate veterinarian would receive.

Some of the conditions that Board-certified cardiologists may diagnose and treat include:

  • Heart failure
  • Cardiomyopathy (diseases of the muscle of the heart)
  • Degenerative mitral valve disease (age related changes to the valves of the heart)
  • Congenital (present at birth) heart defects
  • Cardiac arrhythmias (problems with the rate and/or rhythm of your animal’s heart)
  • Diseases of the pericardium (sac surrounding the heart)
  • Tumors that effect the heart and blood vessels
  • Systemic Hypertension (high blood pressure)
  • Pulmonary hypertension (high blood pressure in the lungs)

Board-certified cardiologists work closely with your family veterinarian and are an integral part of the team once a cardiac problem is detected. Cardiologists are able to perform specialized testing to diagnose and characterize an animal’s heart condition that your family veterinarian may not offer. The tests performed may include:

  • Echocardiography (cardiac ultrasound)
  • Electrocardiography (ECG)
  • Blood pressure measurement and monitoring
  • Holter monitor – 24 hour ECG performed at home
  • Radiography (x-rays) of the chest and lungs

In addition, board-certified cardiologists can perform advanced procedure when necessary. These include:

  • Cardiac catheterization procedures
  • Interventional Cardiology:
    • Pacemaker implantation (for animals with too slow of a heart rate)
    • Occlusion of Patent Ductus Arteriosus (PDA)
    • Balloon Valvuloplasties (Valvular Stenosis)

VCA West Coast Animal Specialty and Emergency Hospital strongly believes in the triad of care. You, your family veterinarian, and your cardiologist will become a team working together to provide your pet with the best care possible.

If you or your veterinarian believe your pet may benefit from an evaluation with a cardiologist, please contact us. Additional information is available at www.acvim.org.

Heartworm Disease: When Prevention Fails

Veterinary cardiologists are often called upon when a pet is suffering from a suspected heartworm infection. Although there are excellent preventive medications on the market, veterinarians still see cases of this dreaded disease either due to owners forgetting to administer the preventive medication or not realizing that their pet is at risk in a particular region or time of year. The good news is that, at least for dogs, treatment options have improved. There are drugs that can be administered to remove the worms. Cases of heartworm infection in cats, although comparatively more rare, are more difficult to deal with. When a heartworm infection is detected in cats, the treatment is typically limited to close monitoring of the cat and supportive care until the worms die off. In rare cases, surgical removal of the worms may be recommended.
 

The Veterinary Cardiology Exam: What to Expect

The veterinary cardiologist will start with a complete physical exam. Canine or feline heart murmurs can often be heard and detected with a simple stethoscope. The veterinary cardiologist will also check your pet's pulse rate, the color of the mucous membranes, as well as examine him or her for any physical evidence of fluid buildup in the abdomen or extremities. Other diagnostic tests that are useful when attempting to pinpoint or rule out heart disease include:

Chest X-Rays: These pictures allow the veterinary cardiologist to assess your pet's heart and lungs and also provide information that can help tell the doctor whether or not your pet is suffering from congestive heart failure.

Veterinary Electrocardiogram (ECG or EKG): This test records the electrical activity of the heart and can tell whether heartbeats are normal or not. An ECG has a recognizable pattern showing the 'peaks and valleys' of the heart's activity. Each point on the tracing depicts how well each specific part of the heart is doing its job. An ECG can provide valuable information about a suspected arrhythmia.

Cardiac Ultrasound (Echocardiogram): This test allows the visual examination of the interior of the heart, its valves, and its surrounding structures via ultrasonography. It is a sophisticated diagnostic tool which, when combined with other components of a complete cardiac workup'"history, physical examination, cardiac and pulmonary auscultation, ECG, x-rays, and other pertinent tests'"can provide veterinary cardiologists with a complete diagnostic picture of your pet's illness and help outline a treatment course for him or her.

Doppler Echocardiography: A more advanced form of ultrasonography, this sophisticated technology can enhance the diagnostic information gained from standard two-dimensional ultrasounds. In short, sound waves are bounced off of moving red blood cells in order to determine the movement and force of blood flow within the heart. There are three types of Doppler ultrasound: continuous wave, pulsed wave, and color flow. Each type is helpful in diagnosing and/or assessing the severity of different types of heart problems.

Holter Monitor: This is a 24-hour continuous ECG recording that can provide information about heart activity while the pet is at home and engaged in normal activities. The pet wears the monitor in a specially fitted vest.

Blood Pressure Monitoring: Your pet's blood pressure can be checked and monitored in much the same way as is done in people.


 

What Additional Training Does A Board Certified Veterinary Cardiologist Have?

A veterinarian who has been awarded this specialty status by the ACVIM will list the initials, 'DACVIM (Cardiology),' after his or her DVM degree. Or, the veterinarian may indicate that he or she is a 'Diplomate' of the ACVIM (cardiology). The word 'Diplomate' typically means the specialist has achieved the following:

Obtained a traditional veterinary degree (three to four years of college plus four years of veterinary school).

Complete a one year internship and an additional two to three years of advanced training, including a residency at an approved program where the doctor will have trained with some of the best experts in the field and obtained hands on experience. As part of their training program, veterinary cardiologists receive extensive training in a variety of diagnostic imaging techniques, including veterinary echocardiography and angiography.

Following this training, the aspiring veterinary cardiologist must pass a series of examinations covering all aspects of general internal medicine and veterinary cardiology.

After completing and passing all of these rigorous requirements, the veterinarian is then recognized by peers as a board certified specialist in veterinary cardiology, and will list the credentials, 'DVM, DACVIM (Cardiology),' after his or her name. When your pet needs the care of a veterinary cardiologist, years of intensive training and additional education will be focused on helping him or her to recover from his or her problem or enjoy the highest quality of life possible.

What Is A Canine or Feline Heart Murmur?

A heart murmur is a sound caused by turbulence in the cat or dog's blood flow. Murmurs can occur if valves in the heart are leaking, either due to congenital problems or age related changes. Pet heart murmurs are graded according to severity. Mild murmurs, especially in older dogs, may not require treatment.
 

What Is Canine and Feline Congestive Heart Failure (CHF) ?

Canine or Feline Heart disease refers to a condition where there is an abnormality of the pet's heart. Canine and Feline Heart failure exists when the heart is no longer able to meet the circulatory needs of the body. Symptoms of canine and feline heart failure include cough, edema, and rapid breathing. Symptoms of heart failure may be more pronounced in active pets as they are more likely to place a demand on their cardiovascular systems whereas the problem may go undetected in more sedentary pets.

The severity of pet heart failure is often staged, using the following guideline:
Asymptomatic: Heart disease may be detectable in the pet but there are no outward signs. A cardiac murmur or arrhythmia may be present.
Mild to moderate heart failure: Clinical signs of heart failure are in evidence at rest or with mild exercise.
Advanced heart failure: Critical clinical signs, such as respiratory distress, ascites (fluid in the body cavity), and profound exercise intolerance, are in evidence. With each advancing stage, the prognosis worsens and the need for treatment of the dog or cat increases.
 

What Is Chronic Valve Disease?

Chronic Value Disease (CVD), or endocardiosis, is a group of diseases characterized by degeneration and fibrosis of the heart's mitral and/or tricuspid valves. It most commonly affects the mitral valve in dogs, cats, and horses. It is less common in cats, but occurs more commonly in the smaller dog breeds, particularly the miniature poodle, Shetland sheepdog, dachshund, and cocker spaniel.
 

What Is Dilated Cardiomyopathy?

While valve disease is the more common heart ailment in smaller breeds of dogs, larger breeds are more prone to suffer from dilated cardiomyopathy. Dilated cardiomyopathy involves the dilation and thinning of the heart's chambers, which can lead to lowered heart function and, eventually, congestive heart failure.
 

What Is Hypertrophic Cardiomyopathy?

The most common heart disease in cats, hypertrophic cardiomyopathy (HCM) is a heart muscle disease in which the walls of the heart, specifically the left ventricle, become abnormally thickened. As the disease progresses, it alters the structure of the heart and impairs its function. It is a potentially serious disease that is found in cats of all ages. A cat that seems healthy can suddenly become very ill or even die. There currently is no cure, although there are medications veterinarians and veterinary cardiologists can prescribe to help alleviate the symptoms.
 

What Is Pericardial Effusion?

This is a buildup of fluid in the membranous sac surrounding the pet's heart. This can be caused by various types of heart tumors although, in many cases, no apparent cause can be found. If a large amount of fluid is present, it can compress the heart and prevent it from working properly. Heart sounds will be muffled and, on x-rays, the heart may appear balloon-like due to the presence of the fluid.
 

Why Does My Pet Need A Veterinary Cardiologist?

Just as your own primary care physician may feel the need to refer you to the care of a specialist from time to time, your general practitioner veterinarian may feel your pet needs a veterinary cardiologist to help diagnose or treat a problem. While your general practitioner veterinarian can handle many aspects of your pet's care, just as in human medicine, there is sometimes a need for the attention of a specialist. You can be assured that a veterinarian who knows when to refer you and your pet for more specialized
diagnostic work or treatment is one that is caring and committed to ensuring that your pet receives the highest standard of medical care for his or her condition. While in some cases, your veterinarian may be able to simply consult with a specialist about your pet's care, in other cases it is necessary to actually refer you and your pet to the specialist for more advanced diagnostics and treatment. Board certified veterinary cardiologists also have access to specialized diagnostic or treatment tools that a general practitioner veterinarian may not have.
 

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