$Unique_ID{BRK00163} $Pretitle{} $Title{What is Mitral Valve Prolapse?} $Subject{mitral valve prolapse Circulatory System Valves heart atrium ventricle aorta murmur murmuring beat chest pain breath shortness palpitations lightheadedness fainting echocardiography murmurs echocardiographies} $Volume{G-3} $Log{ Anatomy of the Heart Valves*0004104.scf Anatomy of the Mitral Valve*0008301.scf Side View of the Mitral Valve*0008302.scf Mitral Valve Prolapse*0008303.scf Location of the Mitral Valve*0008304.scf} Copyright (c) 1991-92,1993 Tribune Media Services, Inc. What is Mitral Valve Prolapse? ------------------------------------------------------------------------------ QUESTION: Can you tell me about mitral valve prolapse? ------------------------------------------------------------------------------ ANSWER: Mitral valve prolapse is a condition in which the mitral valve in the heart has slipped out of its normal position. Although it sounds ominous, mitral valve prolapse is rather common and is seen in 5% of the population. It varies between a condition that no one, including a physician, notices to serious conditions causing physical symptoms that include lightheadedness and fainting. The mitral valve helps control the flow of blood between the left atrium and left ventricle in the heart, preventing blood from flowing back into the atrium rather than out through the aorta to the body. In a mild case of prolapse, there may be no problem, but a severely prolapsed valve allows some blood to flow back into the atrium during each beat and impair circulation. The main symptom of mitral valve prolapse is a heart murmur, extra clicking or murmuring sounds during each heart beat. Other symptoms that have been linked to mitral valve prolapse include chest pain, shortness of breath, palpitations, anxiety, lightheadedness, and fainting. However, because mitral valve prolapse is not rare, these symptoms may be present and not due to the valve problem. If mitral valve prolapse is suspected, your physician may refer you to a cardiologist who will use an ultrasound technique called echocardiography to make a diagnosis. Treatment is usually prophylactic aimed at preventing infections or over exertion that could lead to strain. Many patients simply need reassurance that they don't have a more serious problem. ---------------- The material contained here is "FOR INFORMATION ONLY" and should not replace the counsel and advice of your personal physician. Promptly consulting your doctor is the best path to a quick and successful resolution of any medical problem.