Mitral valve prolaps: Mitral valve has anterior (a) and posteriotr leaflets (p). Prolapse has 4 stages. Stage i is mild, stage 2 is moderate, stage 3 is moderate to severe and stage 4 is severe degree. Anterior leaf let has three sections labeled as a1, a2, a3. Stage ii a2 means: a2 section shows moderate degree of prolapse.
Answered 11/19/2018
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