[Evaluation of the seriousness of aortic valve stenosis: calculation of the valvular area or peak? Reliability of Hakki's formula].


The severity of aortic valve stenosis should be assessed by means of the calculation of the valvular area; on the other hand, the routine use of the Gorlin's formula for the aortic area is laborious and time consuming. Recently Hakki proposed a simplified formula (area = cardiac output/square root gradient) for the calculation of valvular areas. This method… (More)


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