QuestionWhat are the different types of heart valve disease?
Answer

There are four heart valves in the human heart; aortic, mitral, tricuspid, and pulmonary valves. Valve disease can affect only one or multiple valves. The most common valves affected are the mitral valve and aortic valve. Valve disease usually takes the form of stenosis, (an abnormal narrowing of the opening of the valve that prevents adequate blood flow through the valve) or regurgitation. Regurgitation is also referred to as incompetence or insufficiency. Regurgitation is when the leaflets of the valve do not close properly and there is backward leaking through the valve. There is also the possibility that one can have a combination of both stenosis and regurgitation.


QuestionWhat are some typical symptoms of heart valve disease?
Answer

Mild heart valve disease may not cause any symptoms and symptoms may vary depending on the individual or valve involved. However, some typical symptoms of heart valve disease include: chest pain, palpitations caused by irregular heartbeats, migraine headaches, fatigue, dizziness, low or high blood pressure, depending on which valve disease is present, shortness of breath

It is important to contact your physician for an accurate diagnosis.


QuestionHow is heart valve disease diagnosed?
Answer

Heart valve disease may first be detected when a doctor listens to your heart with a stethoscope and may hear an abnormal sound across one of the heart valves. Further diagnostics include:

  • Electrocardiogram (ECG or EKG) - a test that records the electrical activity of the heart, shows abnormal rhythms (arrhythmias or dysrhythmias), and detects heart muscle damage.
  • Chest x-ray - a diagnostic test which uses invisible electromagnetic energy beams to produce images of internal tissues, bones, and organs onto film. An x-ray can show enlargement in any area of the heart.
  • Cardiac catheterization - this diagnostic procedure involves a tiny, hollow tube (catheter) being inserted into an artery leading to the heart in order to image the heart and blood vessels. This procedure is helpful in determining the type and extent of valve damage.
  • Transesophageal echo (TEE) - TEE is a diagnostic test that is used to measure the sound waves that bounce off the heart, creating a graphic image of the movement of the heart structures.
  • Radionuclide scans - these scans use radioactive imaging to view blood flow, internal organ structure, and organ function.
  • Magnetic resonance imaging (MRI) - a diagnostic procedure that uses a combination of large magnets, radiofrequencies, and a computer to produce detailed images of organs and structures within the body.

QuestionWhat causes heart valve disease?
Answer

The causes of heart valve disease can vary but may include:

  • Damage resulting from a heart attack
  • Damage resulting from an infection
  • Changes in the heart valve structure due to the aging process
  • Congenital birth defect
  • Myxomatous degeneration - an inherited connective tissue disorder that weakens the heart valve tissue.
  • A history of rheumatic fever (now a rare disease in North America due to effective antibiotic treatment).

QuestionWhat are the treatment options for aortic valve disease?
Answer

Treatment options can vary from careful monitoring of the situation to drug intervention to surgical options. The choice of treatment must be discussed with your doctor who will take into consideration your overall health, age, past medical history, signs and symptoms, extent of valve disease, your tolerance for a specific medication or procedure, your preferences and/or tolerance for future procedures. Heart valve replacement is one option when the aortic valve is severely malformed or destroyed. Replacement valves fall into two categories: mechanical valves, constructed from a durable pyrolytic carbon material and tissue (biologic) valves, which include valves of animal tissue and donated human aortic valves.


QuestionWhat are the treatment options for mitral valve disease?
Answer

Treatment options can vary from careful monitoring of the situation to drug intervention to surgical options. The choice of treatment must be discussed with your doctor who will take into consideration your overall health, age, past medical history, signs and symptoms, extent of valve disease, your tolerance for a specific medication or procedure, your preferences and/or tolerance for future procedures.  

In some cases, surgery on the malfunctioning valve can be performed to repair the diseased valve. In increasing numbers across the United States, valves are being repaired using robot-assisted devices. This allows a more minimally invasive surgical technique.

Heart valve replacement is another option when the mitral valve severely malformed or destroyed and cannot be repaired. Replacement valves fall into two categories: mechanical valves, constructed from a durable pyrolytic carbon material and tissue (biologic) valves, which include animal valves and donated human aortic valves.


QuestionWhat performance characteristics does a physician look for in a mechanical valve?
Answer

Physicians will evaluate specific mechanical valve options based on five primary performance characteristics, each with important considerations on clinical outcomes:


QuestionAren’t all mechanical valves the same?
Answer

No, while mechanical valves may share similar materials, the design of these materials is different. It is important to look at how blood flows through the valve. 


QuestionWon’t a mechanical valve make an annoying clicking sound as it opens and closes?
Answer

Some patients report that they can hear their mechanical heart valve when it opens or closes. This soft click is normal and may be more noticeable when you are resting or in a quiet room.


QuestionWhat can I expect during valve replacement surgery?
Answer

In the operating room, a number of monitoring devices, such as an EKG, to monitor the function of your heart and other vital signs during surgery will be attached to your body and an intravenous (IV) line will be inserted into your arm to deliver fluids and any necessary medication. To help you breathe during surgery, you will be placed on a respirator, which involves placing a tube down your throat and into your lungs. You will be placed under general anesthesia so that you do not see or feel anything during surgery. After you are unconscious, a transesophageal echocardiogram, which is a type of ultrasound device, may be inserted into your esophagus to display images of your heart during surgery.

To gain access to the heart, the surgeon may cut through your sternum or breastbone, or may go in between your ribs. Once your heart is visible, the surgeon will place you on a heart-lung machine, which will take over the function of your heart and lungs for the remainder of the operation by circulating oxygen-rich blood throughout your body. During this bypass, your aorta is clamped near your valve to prevent blood from interfering with the surgery. This bypass is necessary because it is difficult to work on your heart while it is beating. After the diseased valve is removed, the surgeon will use a device to measure the size of the valve opening to select the correct size for the replacement valve to ensure the best possible blood flow When the new valve is in place, the surgeon will allow your heart to start beating again. When your heart is beating normally, your surgeon will begin to close the incisions that have been made. As a precautionary measure, it is common to insert pace maker wires before you are transferred to the ICU. If these wires are not needed, they will be removed when the surgeon thinks it is appropriate.


QuestionWhat are the risks of valve replacement surgery?
Answer

Over the years there has been much improvement in technology and surgical techniques.  Although much lower than in past years, there still remains risk to heart valve surgery. The level of risk should be discussed with your doctor and depends on type of procedure being done, experience of surgeon, age, current medical condition and past medical history among other things. Risks to valve replacement surgery include but are not limited to stroke, bleeding, infection, heart attack and very rarely death.


QuestionHow long is the recovery process after the surgery?
Answer

Following valve surgery, the valve recovery process depends on many factors; type of procedure, other procedures needed at time of surgery, for example a coronary bypass procedure, age of patient, health condition of patient at the time of the procedure, other contributing medical conditions, etc. There is more evidence that attitude of the patient prior to procedure plays an important role in the recovery process. In short, it is difficult to tell how any one individual may recover. However, on average across the United States, hospital stays are about 5 days for valve replacement procedures. It may be about a month before driving a car is recommended. Your surgeon and cardiologist will guide you in your recovery process.


QuestionHow long will a mechanical valve last?
Answer

Mechanical valve can last for the lifetime of the patient.


QuestionHow long will a tissue valve last?
Answer

Depending on the position of the replacement valve, i.e. mitral or aortic and most importantly the age of the patient at the time of implant, tissue valves will last on average about 10 years.1


QuestionWhat should I remember about lifestyle changes after my surgery?
Answer

It is important to follow all of your doctor’s instructions. Your doctor will guide you though the recovery process and resuming your normal daily activities.


QuestionDo I need to take precautions around airport and other security systems, x-rays, MRI equipment, cell phones, other equipment?
Answer

No, mechanical heart valves do not typically activate any alarms nor do airport security systems negatively affect mechanical valve function. X-rays and MRI screening can be completed with most mechanical heart valve. It is always wise, however, to carry your patient identification implant card, especially when traveling. Ask your doctor for more information on X-rays and MRIs.


QuestionCan I get an MRI with mechanical valves?
Answer

Yes, MRI should not affect the opening and closing of the valve leaflets. The leaflets of the valve open by the changes in pressure that occur in the different chambers of your heart as the blood flows through your heart. Ask your doctor for more information on X-rays and MRIs.


QuestionWhat is endocarditis and how can it be prevented?
Answer

Endocarditis also referred to as infective endocarditis is an infection of the heart that can damage the heart valves. It is recommended that people with heart valve disease, artificial heart valves (either bioprosthetic or mechanical), congenital heart defects, or an abnormally thickening of the heart muscle take antibiotic therapy prior to any dental procedure or other surgical procedure to prevent this type of infection. As always check with your cardiologist to see if this pertains to you. Also it is important to remind your dentist if you have been diagnosed with heart valve disease and/or undergoing treatment for heart valve disease.


QuestionWhy do I need anticoagulation therapy?
Answer

Artificial heart valves are most often made of material that is foreign to the body and replacement valves effect blood flow which may make you body more susceptibile to blood clot formation on the valve. Anticoagulation medicine slows down the clotting process of the blood to reduce the possibility of clotting. It is important to stay within your prescribed therapeutic range. In the U.S., QAS Home INR Monitoring can provide reliable clinical monitoring in the comfort of your home.

Oral anticoagulants have been used for half a century and are efficient in preventing or delaying the clotting of blood.2 Coumadin®, the most common of these drugs, is listed as one of the 20 most frequently prescribed drugs in the United States.


QuestionWhy do I need a patient identification card?
Answer

A patient identification card following a valve replacement provides identification as to what type of valve that you have implanted. In case of accident or emergency, it can alert those taking care of you to position of the valve, materials of the valve and any potential medication that you may be taking as a result of your replacement heart valve.


  1. www.sts.org
  2. www.ncbi.nlm.nih.gov/pmc/articles/PMC2000654/

    Coumadin is a registered trademark of Bristol-Myers Squibb.