Figure 3
From: Classification of severe aortic stenosis and outcomes after aortic valve replacement
Box plot to demonstrate the distribution of AVCratio, LVOT mean diameter, and maximal diameter of aortic annulus according to subtypes. (a) AVCratio was calculated by dividing AVC with sex-specific thresholds (Male, 2000; Female, 1250). The score above the red-dotted line represents AVC above the sex-specific threshold, and consequently, severe aortic stenosis. The score below the red-dotted line represents the AVC below the sex-specific threshold and nonsevere calcification. The mean of AVCratio was significantly lower in paradoxical LF-LG AS than that of high gradient severe AS (P = 0.001). In addition, the proportion of nonsevere calcification was most frequent in paradoxical LF-LG AS patients. Both (b) LVOT mean diameter and (c) maximal diameter of aortic annulus were lowest in LF-LG AS patients among the three subtypes and significantly larger than those of high-gradient severe AS patients. AS aortic stenosis, AVC aortic valve calcium score, LF-LG low-flow and low-gradient, LVOT left ventricular outflow tract.
