Open Access

Table 5

Patient safety.

Overall Year
p-value Missing
2019 2020 2021 2022
Number of cases 40,777 10,261 9295 9731 11,490
Timing of pump sucker termination <0.001 7.6
 Prior to, or at the initiation of, protamine delivery 26,447 (70.2) 5479 (54.8) 6034 (73.5) 6853 (77.9) 8081 (75.9)
 1%–25% of protamine given 2641 (7.0) 1393 (13.9) 431 (5.2) 382 (4.3) 435 (4.1)
 26%–50% of protamine given 6841 (18.2) 2340 (23.4) 1537 (18.7) 1333 (15.1) 1631 (15.3)
 >50% of protamine given 1730 (4.6) 788 (7.9) 213 (2.6) 234 (2.7) 495 (4.7)
Evidence of visible clotting in the circuit 246 (0.6) 74 (0.7) 42 (0.5) 56 (0.6) 74 (0.7) 0.09 1.8
Perfusion checklist 40,146 (99.6) 10,039 (99.7) 9139 (99.7) 9603 (99.6) 11,365 (99.6) 0.971 1.2
Transfer of care during the intraoperative period 4213 (10.5) 968 (9.6) 1024 (11.2) 995 (10.3) 1226 (10.8) 0.003 1.4
Adverse event during the intraoperative period (y/n) 224 (0.6) 71 (0.7) 57 (0.6) 44 (0.5) 52 (0.5) 0.035 2.4

Continuous variables are expressed as median, [IQR], and categorical variables as count (%).

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