The Korean Journal of Clinical Laboratory Science : eISSN 2288-1662 / pISSN 1738-3544

Table. 1.

Table. 1.

Classification of severity of aortic valve stenosis

 IndicatorMildModerateSevere
Peak AV velocity (m/sec)<3.03.0~4.0>4.0
Mean pressure gradient (mmHg)<2525~40>40
Valve area (cm2)>1.51.0~1.5<1.0
LVOT/AV TVI ratio>0.50.25~0.5<0.25

Abbreviations: LVOT/AV TVI ratio, left ventricular outflow tract/ aortic valve time velocity integral ratio.

Korean J Clin Lab Sci 2019;51:270-5 https://doi.org/10.15324/kjcls.2019.51.2.270
© 2019 Korean J Clin Lab Sci