ENO2 and cardiac arrest: The measurement of NSE on day 3 after cardiac arrest showed statistically significant differences among the study groups both in the entire cohort (22.26 ± 12.43 vs. 126.83 ± 81.63; p < 0.001) and in the sub-analysis for OHCA patients (24.82 ± 14.07 vs. 139.34 ± 88.02; p < 0.001; Figure S5).