An Introduction To Mitral Valve Repair

By Lawrence Reaves

The mitral valve (MV) is one of your heart's four valves that help to ensure that blood flows in the proper direction and that there is no regurgitation. It is located between the left atrium and left ventricle. Comprised of flaps of tissue called leaflets, the MV opens as the left atrium contracts, thereby allowing blood to flow into the left ventricle. Then, it closes in order to prevent the blood from flowing back into the atrium. If the MV fails to work properly, it can impair your heart's ability to pump blood throughout your body.

This article will describe the ways in which the mitral valve can malfunction. We'll explain the procedure used to correct the problem as well as its advantages over other forms of treatment.

Ways In Which The Mitral Valve Can Malfunction

Two problems can occur with the mitral valve. First, it can fail to close properly after blood has moved from the left atrium into the left ventricle. If this happens, blood can flow back into the atrium when the ventricle contracts. As a result, you may feel winded or have difficulty catching your breath.

The second problem is that the MV might fail to open properly. That prevents blood from flowing from the atrium into the ventricle. This condition is usually caused by rheumatic fever and is far less common.

Repairing The Problem

There are two strategies to correct a malfunctioning MV: replacement of the valve or surgically repairing it. Replacements can be made from metal or tissue. However, because introducing any foreign object into the body carries risks, many doctors recommend repairing the valve.

Long ago, mitral valve repair required the surgeon to cut through the patient's breastbone. Today, the procedure is far less invasive. The surgeon makes a small incision (between 2 and 4 inches) and uses robotic assistance to guide his or her approach.

Advantages Of The Procedure

There are several advantages to repairing the MV rather than replacing it. The mortality rate during replacement surgery can climb up to 8%. By contrast, the mortality rate associated with mitral valve repair typically ranges between 1-2%. There's also less blood loss and a lower chance of infection during - and immediately following - the operation. The recovery time is shorter and patients are usually able to return home more quickly than would be the case if they received a replacement.

Another advantage: patients who undergo mitral valve repair do not need to take blood thinners. Those who receive a replacement valve are forced to take blood thinners for the remainder of their lives. Otherwise, they risk developing blood clots.

While minimally invasive techniques have significantly reduced the risks involved with mitral valve repair, not everyone is a good candidate for the operation. Be sure to discuss your options with your physician. - 30310

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