Blood returns to your heart from every part of your body. It travels into the right side of the organ through the vena cavae. It leaves the right side and moves to your lungs, where it is replenished with oxygen. Newly enriched with oxygen, blood flows into your heart’s left side before leaving the organ in order to be circulated throughout your body.
Your mitral valve (MV) is one of four valves that help regulate the flow of your blood as it moves through your heart. It is located between your left atrium (one of two upper chambers) and left ventricle (one of two lower chambers). This particular valve can experience problems that affect the flow of blood between these two chambers. One such problem is called mitral valve prolapse (MVP).
Here, we will provide you with a brief overview regarding the causes and potential risks associated with MVP. We’ll also explain how mitral valve repair addresses the disorder.
Possible Causes Of The Disorder
If the MV is working as it should, its two leaflets (or, flaps) close after blood flows through it into your left ventricle. When the leaflets close, the entrance becomes sealed, thereby preventing the flow of blood back into your left atrium. With prolapse, one of the two leaflets is too large and bulges back into the atrium whenever your heart beats. As a result, the opening between your atrium and ventricle does not seal off properly. Blood is allowed to flow back into the upper chamber.
The causes of MVP are unknown, though experts have speculated the disorder is related to Marfan syndrome (a condition in which your body’s connective tissue is irregular). Other possible culprits include a specific type of kidney disease and Ehlers-Danlos syndrome. Often, patients are born with a “floppy” mitral valve.
Potential Complications To Be Aware Of
Prolapse can run the gamut from very serious to minor. Most patients who have the disorder suffer few if any symptoms. That being said, when the condition is serious, it can lead to a number of complication, most commonly in the elderly.
The most common byproduct of prolapse is regurgitation. This is a condition, as already described, in which blood flows from your left ventricle into your left atrium because the opening is not properly sealed. In severe cases of regurgitation, you may be exposed to potential heart failure.
Another side effect of prolapse is an arrhythmia. There is far less risk inherent with arrhytmias than a severly regurgitant mitral valve, though your physician will most likely want to monitor it over time.
Prolapse can also lead to endocarditis. This is an infection of the endocardium, the membrane the forms the barrier betwee the chambers and valves of the heart. MVP can promote the growth of bacteria, leading to an infection of this lining.
How Is The Disorder Treated?
Depending on the severity of the condition, your doctor may prescribe one or more medications to treat the symptoms. For example, beta blockers can help reduce an arrhythmia while aspirin and anticoagulants can help prevent the formation of blood clots.
For patients who are suffering from severe MVP, surgery may be necessary to correct the disorder. A physician may choose either to repair the malfunctioning mitral valve or replace it. The latter approach is usually reserved for circumstances in which mitral valve repair is not feasible. If surgery is possible, the surgeon may perform a triangular resection or chordal transfer, depending on which of the two leaflets is abnormal.
Open heart surgery was once necessary to perform mitral valve repair. Today, a minimally invasive approach is commonly taken. This usually results in less post-op pain and a quicker recovery. If you suffer from a malfunctioning mitral valve that is causing severe problems, ask your physician whether a triangular resection or chordal transfer is an option.