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What are the symptoms of mitral regurgitation?

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Quick Answer

Acute mitral valve regurgitation symptoms include shortness of breath, chest pain, confusion, lightheadedness and tachycardia. The chronic condition results in shortness of breath on exertion, excess fluid in the lower extremities, heart palpitations and fatigue, according to WebMD. Acute presentation of the condition requires immediate medical evaluation and treatment.

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Full Answer

Mild to moderate chronic mitral valve regurgitation often produces no symptoms. Moderate to severe MR may not produce symptoms for years, states WebMD. Symptoms of heart failure appear after the left ventricle of the heart expands in response to volume overload, which results from additional blood flowing through the faulty valve. The expansion of the ventricle directly relates to the progression of symptoms.

The backward flow of blood from the left ventricle into the left atrium results in increased pressure in the atrium and the pulmonary veins. This increase in pressure can result in fluid in the lungs, reports the American Heart Association. The increased pressure in the left atrium can result in enlargement and a condition called atrial fibrillation, which causes disorganized, rapid movement that can interfere with the heart's ability to effectively pump blood to the body. Atrial fibrillation can cause blood clots to break loose and travel through the bloodstream, which results in a stroke, embolism or heart attack.

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