Mitral annular calcification
Mitral Annular Calcification
Mitral Annular Calcification (MAC) is a chronic, degenerative calcification of the mitral valve annulus in the heart. It is often associated with aging and is more common in women than in men.
Pronunciation
Mitral: /ˈmaɪtrəl/ Annular: /ˈæn.jʊ.lər/ Calcification: /ˌkæl.sɪ.fɪˈkeɪ.ʃən/
Etymology
The term "Mitral" is derived from the Latin word "mitra", meaning a bishop's mitre, due to the resemblance of the mitral valve to a bishop's hat. "Annular" comes from the Latin "annulus" meaning ring, referring to the ring-like structure of the valve. "Calcification" is derived from the Latin "calx" or "calcis" meaning lime or limestone and the suffix "-fication" meaning the act or process of making.
Definition
Mitral Annular Calcification is a condition characterized by the deposition of calcium (a hard, white mineral) in the mitral valve annulus, a ring-like structure in the heart that helps control blood flow. This can lead to stiffening or hardening of the valve, which can affect its function.
Symptoms
Symptoms of Mitral Annular Calcification may include shortness of breath, fatigue, palpitations, and chest pain. However, many people with MAC may not experience any symptoms.
Causes
The exact cause of Mitral Annular Calcification is unknown, but it is often associated with aging and is more common in people with certain conditions such as hypertension, kidney disease, and diabetes.
Treatment
Treatment for Mitral Annular Calcification may include medications to manage symptoms and underlying conditions, and in severe cases, surgery may be required to repair or replace the mitral valve.
Related Terms
External links
- Medical encyclopedia article on Mitral annular calcification
- Wikipedia's article - Mitral annular calcification
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