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MedlinePlus Medical Encyclopedia: Mitral stenosis Mitral stenosis is a narrowing or blockage of the opening of the mitral valve, which separates the upper and lower chambers on the left side of the heart. Mitral stenosis prevents the valve from opening properly and blocks the blood flow from the left atrium to the left ventricle. Mitral stenosis may be difficult to distinguish from left atrial myxoma (a tumor of the heart). www.nlm.nih.gov /medlineplus/ency/article/000175.htm   (931 words)

Diseases of the Mitral Valve - Texas Heart Institute Heart Information Center Mitral stenosis is a narrowing or blockage of the mitral valve. Mitral stenosis may also be associated with aging and a buildup of calcium on the ring around the valve where the leaflet and heart muscle meet. Mitral stenosis is usually caused by rheumatic fever, but it can be caused by any condition that causes narrowing of the mitral valve. www.texasheartinstitute.org /HIC/Topics/Cond/vmitral.cfm   (861 words)

Mitral Stenosis Mitral insufficiency is the hallmark of rheumatic carditis. First bouts of dyspnea in patients with mitral stenosis are usually precipitated by exercise, emotional stress, sexual intercourse, infection, or atrial fibrillation, all of which increase the rate of blood flow across the mitral orifice and result in further elevation of left atrial pressure. In mitral stenosis and sinus rhythm, the left atrial pressure pulse generally exhibits a prominent atrial contraction in the form of an elevated A wave and a gradual pressure decline after mitral valve opening (Y descent). academ.hvcc.edu /~desnolin/ms.html   (2355 words)

Carilion - Mitral Valve Stenosis   (Site not responding. Last check: 2007-10-11) Mitral valve stenosis is a "quiet" condition—it often has no symptoms in its early stages and may not be diagnosed until you've had the disease for some time. An echocardiogram is used to determine whether mitral valve stenosis is present and to estimate its severity. A chest X-ray may show evidence of mitral valve stenosis, such as enlargement of the upper left heart chamber (left atrium), enlargement of the pulmonary arteries, and too much blood and backup of fluid in the lungs (pulmonary edema). www.carilion.com /kbase/htm/ue10/03/ue1011.htm   (1082 words)

Award for Undergraduate Writing 1996 - Texas Heart Institute Journal Mitral valve surgery (especially for the relief of mitral stenosis) has paralleled the innovations and trends of cardiac surgery and often has served as the benchmark of the latest procedures and techniques. A chronological survey of mitral valve surgery is presented, with emphasis on parallels to cardiac surgery in general and with highlights of key figures and events that have conclusively altered the surgeon's approach to and success with cardiac dysfunction. were among the 1st to repair stenosis of the mitral valve successfully in the late 1950s, but mitral valve repair was infrequently used because it was technically challenging and was overshadowed by the use of mechanical valves. texasheart.org /Education/THIJournal/khan.cfm   (4635 words)

Mitral Stenosis   (Site not responding. Last check: 2007-10-11) Mitral stenosis is a narrowing of the opening of the mitral valve. Mitral stenosis limits the flow of blood through the mitral valve and causes the heart to work harder. Mitral stenosis is almost always due to scarring of the valve from rheumatic fever. www.temple.edu /heart/html/mitral_stenosis.html   (852 words)

Healthopedia.com - Mitral Stenosis Mitral stenosis is an abnormal narrowing of the mitral valve, which is one of the heart valves. Most cases of mitral stenosis are due to the long-term consequences of rheumatic fever. The risks of mitral stenosis are related to the "tightness" of the valve. www.healthopedia.com /mitral-stenosis   (349 words)

Women's Health Advisor 2003.1: Mitral Valve Stenosis Mitral valve stenosis is a narrowing of the opening of the mitral valve in the heart. Mitral valve stenosis is sometimes a birth defect, but it does not seem to be inherited. Mitral stenosis is often a result of rheumatic fever, which is caused by the same bacteria that cause strep throat. www.thedacare.org /crs/wha/wha_mitralvs_car.htm   (976 words)

Mitral Valve Stenosis If medications are not effective in controlling your symptoms of mitral valve stenosis or if your doctor determines that you need more aggressive treatment, you may need surgery to repair or replace your mitral valve. Balloon valvotomy (percutaneous mitral balloon valvotomy) is the method of choice for treating mitral valve stenosis in select patients. People with signs of blood clots in the left atrium, widespread calcification of the mitral valve structures, or moderate to severe mitral valve regurgitation are not considered good candidates for a balloon valvotomy. www.peacehealth.org /kbase/topic/special/ue1003/sec12.htm   (862 words)

Mitral stenosis - Wikipedia, the free encyclopedia Mitral stenosis with marked thickening of the leaflets and left atrial hypertrophy. Most cases of mitral stenosis are due to disease in the heart secondary to rheumatic fever and the consequent rheumatic heart disease. Less common causes of mitral stenosis are calcification of the mitral valve leaflets, and as a form of congenital heart disease. en.wikipedia.org /wiki/Mitral_stenosis   (1405 words)

Mitral Valve Stenosis Mitral valve stenosis is a heart condition in which the mitral valve fails to open as wide as it should. The mitral valve is one of four valves in the heart. In the later stages of mitral valve stenosis, the left atrium may not be able to keep pumping the same volume of blood into the left ventricle. www.bchealthguide.org /kbase/topic/special/ue1003/sec1.htm   (674 words)

Mitral Valve Stenosis | Principal Health News If the mitral valve is abnormally narrow, due to disease or birth defect, blood flow from the atrium to the ventricle is restricted. Mitral valve stenosis is almost always caused by rheumatic fever. Mitral valve stenosis is usually detected by a physician listening to heart sounds. www.principalhealthnews.com /topic/topic100587156   (649 words)

Mitral Stenosis Mitral stenosis was present in all, with parachute deformity in 12 patients. Nine heart specimens with aortic and mitral atresia (group 1) were studied and compared with 19 hearts with aortic atresia and mitral stenosis (group 2) (EFE of the LV was present in all cases) and 10 normal hearts. Mitral valve replacement and bypass are high-risk operations in the infant with severe mitral stenosis. www.pediheart.org /searches/topic/ms.htm   (5439 words)

Mitral Stenosis In mitral stenosis, the mitral valve fails to open normally. Compare the relatively closed mitral valve in mitral stenosis with the valve opening in the normal heart. Since the left ventricle is excluded from this process by the stenotic mitral valve, the left ventricular free wall and inter-ventricular septum remain normal in thickness. www.gilmanheartvalve.org /MitralStenosis.htm   (136 words)

Mitral Stenosis: Surgical Options - HEART DISEASE - 05/04/97 Stenosis - or narrowing - of the mitral valve causes a block of the smooth flow of blood from the left atrium into the left ventricle, and an ensuing build-up of blood in the lungs, resulting in symptoms of the disease. The disadvantage of open mitral valvotomy for mitral stenosis (as well as for closed valvotomy) is the risk of recurrence of stenosis after 2 to 20 years. Similar to open mitral valvotomy, the surgeon opens the left atrium of the arrested heart, excises the mitral valve which is usually severely diseased, scarred or calcified, and inserts an appropriately sized artificial valve in its place. www.chdinfo.com /aa/aa050497.htm   (1873 words)

Mitral valve stenosis Mitral valve stenosis is narrowing of the mitral valve. Mitral regurgitation is a condition in which the mitral valve doesn't close tightly. Mitral valve prolapse is a disorder in which the mitral valve sags instead of closing tightly. www.cnn.com /HEALTH/library/DS/00420.html   (3681 words)

Mitral valve stenosis - MayoClinic.com Mitral valve stenosis — or mitral stenosis — is a condition in which the heart's mitral valve is narrowed. When the mitral valve is narrowed (stenotic), blood can't efficiently move through your heart and from your heart to the rest of your body. The main cause of mitral valve stenosis is a childhood infection called rheumatic fever, which is related to strep infections. www.mayoclinic.com /health/mitral-valve-stenosis/DS00420   (272 words)

MITRAL STENOSIS Mitral stenosis is a condition in which the mitral valve leaflets become thickened and the commissures fused along with thickening and shortening of the chordae tendineae. Mitral Stenosis is the leading cause of congestive heart failure in developing countries. The diagnosis of mitral stenosis is suspected on history and confirmed by physical examination, electrocardiography and echocardiography. www.priory.com /med/mitsten.htm   (3200 words)

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. 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. www.umm.edu /imagepages/18147.htm   (270 words)

Mitral Valve Stenosis Although mitral valve stenosis is a lifelong disease, symptoms usually take 10 to 20 years to develop and can take as long as 40 years. Additional symptoms of mitral valve stenosis are related to developing heart failure and include an irregular heart rhythm (most often due to atrial fibrillation). It is often the development of one or more complications of mitral valve stenosis that leads to its diagnosis. www.peacehealth.org /kbase/topic/special/ue1003/sec4.htm   (403 words)

Mitral stenosis - WrongDiagnosis.com A rheumatic disease causing diffuse thickening of the mitral valve leaflets by fibrous tissue or calcific deposits. Mitral stenosis is a narrowing of the orifice of the mitral valve of the heart. With a diagnosis of Mitral stenosis, it is also important to consider whether there is an underlying condition causing Mitral stenosis. www.wrongdiagnosis.com /m/mitral_stenosis/intro.htm   (616 words)

Mitral Stenosis: Heart Valve Disorders: Merck Manual Home Edition Mitral stenosis (mitral valve stenosis) is a narrowing of the mitral valve opening that increases resistance to blood flow from the left atrium to the left ventricle. If mitral stenosis is severe, pressure increases in the left atrium and in the veins of the lungs, resulting in heart failure with fluid accumulation in the lungs. Severe mitral stenosis may result in high blood pressure in the lungs (pulmonary hypertension) and a low level of oxygen in the blood. www.merck.com /mmhe/sec03/ch028/ch028d.html   (798 words)

Mitral Valve Stenosis Information on Healthline The term stenosis means an abnormal narrowing of an opening. Mitral valve stenosis refers to a condition in the heart in which one of the valve openings has become narrow and restricts the flow of blood from the upper left chamber (left atrium) to the lower left chamber (left ventricle). In the heart, the valve that regulates the flow of blood between the left atrium and the left ventricle is called the mitral valve. www.healthline.com /galecontent/mitral-valve-stenosis   (683 words)

The Atrioventricular Valves - Mitral Stenosis In mitral stenosis, fusion of the commissures between the mitral valve leaflets causes obstruction to left ventricular inflow. With mitral stenosis, however rapid filling is not possible, so the valve leaflets have to remain as widely separated as they can throughout diastole, and the "M" disappears. The value of cardiac catheterization methods for assessing a patient with mitral stenosis is questionable; the end-diastolic valve gradient is influenced by heart rate, stroke volume, and the presence of mitral aortic regurgitation, which also invalidate estimation of valve orifice area by the "Gorlin" formula. www.echoincontext.com /int1/skillI1_02.asp   (885 words)

Treating Mitral Valve Stenosis - Health - WSOCTV.com | WSOC Mitral valve stenosis is a condition in which the valve leaflets don't open fully, impeding blood flow in the left side of the heart. Rheumatic fever may cause the leaflets of the mitral valve to thicken, interfering with the opening of the valve. In mitral valve replacement, the diseased valve is removed and replaced with a mechanical or donor valve (from a human cadaver, cow or pig). www.wsoctv.com /health/5040495/detail.html   (867 words)

Mitral valve disease treatment options and treatment information at Mayo Clinic The mitral valve connects the heart's upper-left chamber (atrium) to the heart's lower-left chamber (ventricle). Mitral valve stenosis -- or mitral stenosis -- is a narrowing of the mitral valve. Mitral valve regurgitation, or mitral regurgitation, occurs when the mitral valve doesn't close tightly, allowing blood to flow backward in the heart. www.mayoclinic.org /mitral-valve-disease/index.html   (345 words)

eMedicine - Mitral Stenosis : Article by Yiju Teresa Liu, MD   (Site not responding. Last check: 2007-10-11) Patients with mitral stenosis typically have mitral valve leaflets that are thickened, commissures that are fused, and/or chordae tendineae that are thickened and shortened. The natural history of mitral stenosis is typically progressive, with a slow and stable course early on, followed by progressive acceleration in the later years. Amyl nitrite inhalation, coughing, isometric or isotonic exercise, and sudden squatting all are useful in accentuating a faint or equivocal murmur of mitral stenosis. www.emedicine.com /emerg/topic315.htm   (3429 words)

Find mitral stenosis treatment options and treatment information at Mayo Clinic Left untreated, mitral stenosis will damage the heart, cause irregular heartbeats and possibly heart failure or other serious complications, including stroke, heart infection, pulmonary edema (water on the lungs) and blood clots. The infection may cause the leaflets of the mitral valve to fuse together, preventing the valve from closing tightly and leading to regurgitation. Some infants are born with a narrowed mitral valve and develop mitral stenosis early in life. www.mayoclinic.org /mitral-valve-disease/mitral-stenosis.html   (426 words)

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