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Connect & DownloadCongenital mitral stenosis is a congenital heart malformation comprising a spectrum of morphologically heterogeneous developmental anomalies that result in functional and anatomic obstruction of inflow into the left ventricle. The structure of the mitral valve is affected at the level of the supravalvular ring, annulus, leaflets or subvalvar copmponents and include supra-valvular ring, leaflet fusion (intra-leaflet ring), mitral parachute deformity and papillary muscle abnormalities. It may be isolated or associated with other heart malformations. The clinical presentation depends on the degree of obstruction, the presence of regurgitation, the presence and severity of associated pulmonary hypertension, and the presence of associated heart malformations. It may present with symptoms and signs of low cardiac output and right ventricular failure such as pulmonary infections, failure to thrive, exertional dyspnea, cough, cyanosis and congestive heart failure.
The Genetic and Rare Diseases Information Center (GARD) has information and resources for patients, caregivers, and families that may be helpful before and after diagnosis of this condition. GARD is a program of the National Center for Advancing Translational Sciences (NCATS), part of the National Institutes of Health (NIH).
View reportOrphanet has a summary about this condition that may include information on the diagnosis, care, and treatment as well as other resources. Some of the information and resources are available in languages other than English. The summary may include medical terms, so we encourage you to share and discuss this information with your doctor. Orphanet is the French National Institute for Health and Medical Research and the Health Programme of the European Union.
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