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. 2020 Oct 6;142(14):1361–1373. doi: 10.1161/CIRCULATIONAHA.120.046612

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© 2020 The Authors.

Circulation is published on behalf of the American Heart Association, Inc., by Wolters Kluwer Health, Inc. This is an open access article under the terms of the Creative Commons Attribution Non-Commercial-NoDerivs License, which permits use, distribution, and reproduction in any medium, provided that the original work is properly cited, the use is noncommercial, and no modifications or adaptations are made.

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Figure 6. — Videometric parameters. A, Peak aortic root distensibility trended lower in the grafts vs the control but was only statistically significantly lower in the straight graft group (Tukey adjusted P≤0.01), with the straight graft being significantly lower than all grafts (P≤0.01 for each) with the exception of Stanford modification (Sm). B, All grafts except straight graft (SG) had significantly higher mean cusp opening velocity than native aortic root controls (P<0.01 for each). C, Relative cusp opening forces were similar between the SG, Uni-Graft (UG), and control (C) groups, whereas the anticommissural plication (ACP), Sm, and Valsalva graft (VG) groups had significantly higher relative cusp opening forces (P≤0.01 for each). The SG group experienced significantly lower relative opening forces than the ACP, Sm, and VG groups (Tukey adjusted P=0.01, 0.01, and 0.03, respectively). D, Closing velocity was significantly higher than in the native root in all grafts except for the SG group (P<0.01 for each). The SG group had significantly lower closing velocities vs any other conduit (P≤0.01 for each comparison). The UG group had significantly lower closing velocities than the ACP, Sm, and VG groups (P≤0.01 for each). E, Only the SG and UG groups experienced relative closing forces approaching that of the native root, whereas relative forces were >5-fold higher in the ACP, Sm, UG, and VG groups (P≤0.01 for each). Left panels report model-adjusted means with 95% CIs, and right panels display Tukey-adjusted pairwise differences in means with 95% CIs. Reported P values are adjusted for multiple comparisons with Tukey correction.