fig8

Figure 8. (A) Schematic representation of effective height (eH) measurement using an aortic caliper, defined as the vertical distance between the central free margin and the aortic insertion line^[24]; (B) Intraoperative assessment of eH with a caliper, positioned with the longer limb at the nadir of cusp insertion^[24]. AN: Aortic anulus; eH: effective height; STJ: sinotubular junction; LH: leaflet height. Reproduced from Ref.^[24] with permission.