Mitral regurgitation classification

Resident Survival Guide

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Rim Halaby, M.D. [2]

Classification

Mitral Regurgitation (MR)

Acute MR

Chronic MR

Primary MR (Degenerative) Due to the disruption of at least one part of valvular structures as a result of any of the following: Mitral valve prolapse Myxomatous degeneration (young patients) Fibroelastic deficiency disease (old patients) Infective endocarditis Connective tissue disease Rheumatic heart disease Radiation heart disease

Secondary MR (Functional) Due to a functional abnormality with a preserved normal structure of the mitral valve as a result of any of the following: Severe left ventricular dysfunction Coronary artery disease Idiopathic myocardial disease

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