FIGURE 4.

Impact of COT on implantation depth. (A) There was a significant reduction of final mean ID in the COT cohort (COT –4.2 ± 2.7 mm vs. Non-COT –4.9 ± 2.3 mm; p = 0.007), whereas (B) the target ID of 3 mm in the COT group and 3–5 mm in the Non-COT group was reached similarly often. (C) Reduction in asymmetric valve deployment with a difference of less than 2 mm between NCC and LCC ID could be achieved more often in the COT group (COT 61.3% vs. Non-COT 44.0%; p = 0.003). COT, cusp-overlap technique; ID, implantation depth.