Non-selective Del Nido and St Thomas cardioplegia in adults: analysis of early clinical experience using propensity matching

Figures

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  Figure 1.. The propensity score of the current study and the estimated probability. (a) Covariate balance showing similarity or equivalence of the covariate distributions between the DNC and STC groups after propensity score matching; unadjusted red dots became adjusted as blue dots and aligned to the ‘0’ mean difference line. (b) Distribution of the propensity shown in the scattered dot-diagram, both DNC and STC as treated, and the control unit has been well matched. DNC, Del Nido cardioplegia; STC, St Thomas cardioplegia.

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  Figure 2.. Clinical outcome summary. (a) In the study population, 55% of patients received only ACP, whereas the rest received a combination of different delivery techniques. (b) Primary clinical outcomes: (I) overall comparison between the groups showed a higher incidence of IABP requirement in the STC group; (II) subgroup comparison for a single procedure showed lower IABP requirement, mortality, MACE compared to other comparisons, but the difference was not statistically significant between the study groups; (III) subgroup comparisons for multiple procedures showed a higher incidence of IABP requirement, mortality, and MACE compared to other comparisons, but the difference was not statistically significant between the groups. (c) Box and whisker plots for the length of the procedure showed a significantly longer duration in the Del Nido group. (d) Box and whisker plots for the cardiopulmonary bypass time showed a significantly longer duration in the Del Nido group. (e) Box and whisker plots for the aortic cross-clamp time showed a significantly longer duration in the Del Nido group. Asterisks are used on the plot to indicate outliers. ACP, antegrade cardioplegia; BCO (LCO + RCO),…