cardiovascular disorders
Mitral Stenosis
Prognosis for Mitral Stenosis
The natural history of mitral stenosis varies, but the interval between onset of symptoms and severe disability is about 7 to 9 years. Outcome is affected by the patient’s preprocedural age and functional status, presence of pulmonary hypertension, and degree of Mitral Regurgitation . Symptomatic results of balloon or surgical commissurotomy are equivalent in patients with valves that are not calcified. However, after a variable period of time, function deteriorates in most patients due to restenosis, and valve replacement may become necessary. Risk factors for death are 