The Concept of a Mitral Valvular Reserve Capacity

Stein, Paul D.; Sabbah, Hani N.; Chandraratna, P. A. N.
April 1979
Angiology;Apr1979, Vol. 30 Issue 4, p262
Academic Journal
The article focuses on the concept of a mitral valvular reserve capacity. The functional cross-sectional area of a valvular orifice may differ from the anatomic orifice area. The aortic valve, for example, has been shown to open less than half of the anatomic cross-sectional area of the valve during the resting slate. A larger percentage of the anatomic cross-sectional area is utilized during states of higher flow. This fact suggested the concept of a functional or physiologic cross-sectional area of the aortic valvular orifice. According to this concept, the anatomic cross-sectional area of the aortic valve could be restricted without impingement upon the functional cross-sectional area in states in which flow across the valve is low.


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