What Harm Can a Thickened Mitral Valve Cause?

By Staff WriterLast Updated Apr 10, 2020 6:42:11 AM ET

Mitral valve thickening is a feature of mitral valve stenosis and can cause complications that include atrial fibrillation, infective endocarditis, pulmonary hypertension, pulmonary edema and systemic embolisms, explains Medscape. People with mitral valve thickening usually do not have symptoms until the third and fourth decades of life.