Validation of EuroSCORE II in atrial fibrillation heart surgery patients from the KROK Registry

Figures

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  Figure 1. Flow chart of study design. AF atrial fibrillation.

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  Figure 2. Kaplan–Meier 30-days (inner graphs—90-days) survival analysis in relation to perioperative risk and atrial fibrillation (AF). Patients are stratified to: (A) total population; (B) low-risk patients; (C) mild risk patients; (D) moderate risk patients; (E) high risk patients. Significant differences between occurrence of AF and survival are evident in all groups in 30-days follow-up (p < 0.001) and in patients with risk ≤ 5% in 90-days follow-up.

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  Figure 3. Kaplan–Meier 30-days survival analysis in relation to type of surgery and atrial fibrillation. (A) Coronary artery bypass grafting (CABG); (B) single non-CABG, (C) 2-procedures; (D) 3-procedures. Significant differences between occurrence of AF and survival are evident in all groups (p < 0.001).

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  Figure 4. Calibration plot, comparison between observed mortality and mortality predicted by EuroSCORE II. AF atrial fibrillation.

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  Figure 5. Receiver operating characteristic curves: (A) AF (+) vs. AF (−); (B) studied population for different in-hospital mortality risks; (C) AF (+) for different in-hospital mortality risks. (D) AF (−) for different in-hospital mortality risks. P for comparison between AF (−) vs. AF (+) in —CABG group (< 0.001), —singe non-CABG (0.16), —2 procedures (0.01), —3 procedures (0.44). AUC area under curve, CI confidence interval.

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  Figure 6. Receiver operating characteristic curves: (A) studied population for different in-hospital mortality risks; (B) AF (+) population for different in-hospital mortality risks; (C) AF (−) population for different in-hospital mortality risks. P for comparison between AF (−) vs. AF (+) in —low group (< 0.001), —mild (< 0.001), —moderate (< 0.001), —high (< 0.001), —very high (0.01). AUC area under curve, CI confidence interval.