Mitral stenosis

Mitral valve obstruction; Heart mitral stenosis; Valvular mitral stenosis

Mitral stenosis is a disorder in which the mitral valve does not fully open. This restricts the flow of blood.

Valvular heart disease (VHD) overview

Valvular heart disease (VHD) describes any abnormality of the heart valves, including the valves on the left side of the heart: mitral and aortic valves, and the valves on the right side of the heart: the tricuspid and pulmonary valves. In a normally functioning heart, valves ensure that blood flows in only one direction and at the right time. The valves act like gates that swing open to allow blood flow and then shut tightly until the next cycle begins. Valvular heart disease consists of two types of abnormalities: stenosis, where the valve does not open completely impairing forward blood flow, and regurgitation, where the valve does not close completely allowing reversed blood flow. Abnormal blood flow often produces atypical heart sounds known as murmurs. The most common causes of valvular disease include infective endocarditis, rheumatic fever, congenital malformations, and trauma. Predisposing factors include hypertension, myocardial infarction, coronary artery disease, pregnancy, anemia, and infection. Treatment of valvular diseases often includes a combination of lifestyle changes, drug therapy, balloon valvuloplasty, or valve replacement surgery depending on the severity.

Mitral stenosis

Mitral stenosis is a heart valve disorder that narrows or obstructs the mitral valve opening. Narrowing of the mitral valve prevents the valve from opening properly and obstructs the blood flow from the left atrium to the left ventricle. This can reduce the amount of blood that flows forward to the body. The main risk factor for mitral stenosis is a history of rheumatic fever but it may also be triggered by pregnancy or other stress on the body such as a respiratory infection, endocarditis, and other cardiac disorders.

Heart valves

The valves of the heart open and close to control the flow of blood entering or leaving the heart.

Heart valve surgery - Series

There are four valves in the heart aortic valve, mitral valve, tricuspid valve, and pulmonary valve. The valves are designed to control the direction of blood flow through the heart. The opening and closing of the heart valves produce the heart-beat sounds.



Exams and Tests


Outlook (Prognosis)

Possible Complications

When to Contact a Medical Professional