Table 2 Perioperative characteristics of matched patients
From: Del-Nido cardioplegia in cardiac surgery for elderly patients: a propensity score-matched analysis
Variable | DNC (n = 89) | CBC (n = 89) | P value |
|---|---|---|---|
CPB time (min) | 133 (106–169) | 133 (108.5-171.5) | 0.607 |
Aortic cross clamp time (min) | 86 (65.5–105) | 83 (65-110.5) | 0.816 |
Infused cardioplegia volume (ml) | 1500 (1350–1500) | 2000 (2000–2500) | < 0.001 |
Cardioplegia infusion times | |||
1 | 16 (18.0) | 1 (1.1) | < 0.001 |
2 | 62 (69.7) | 16 (18.0) | |
3 | 11 (12.3) | 39 (43.8) | |
≥4 | 0 (0.0) | 33 (37.1) | |
Nadir bladder temperature (℃) | 31.5 (30.6–32.4) | 30.4 (29.8–31.1) | < 0.001 |
Nadir hematocrit during CPB (%) | 25 (23–26) | 25 (23–26) | 0.672 |
Nadir DO2i during CPB | 331.3 (312.2-355.1) | 323.7 (308.4-358.2) | 0.405 |
Concomitant cardiac surgeries | |||
Mitral valve repair | 15 (16.8) | 23 (25.4) | 0.143 |
Mitral valve replacement | 48 (53.9) | 41 (46.1) | 0.294 |
Aortic valve replacement | 31 (34.8) | 38 (42.7) | 0.282 |
Tricuspid valve repair | 35 (39.3) | 40 (44.9) | 0.448 |
CABG | 11 (12.4) | 15 (16.9) | 0.396 |
Maze procedure | 6 (6.7) | 6 (6.7) | 1.000 |
VATS surgeries | 10 (11.2) | 11 (12.4) | 0.816 |
Postoperative hospital stay (days) | 11 (8-16.5) | 13 (7–20) | 0.343 |
ICU stay (hours) | 64 (41.5-114.5) | 70 (45-171.5) | 0.108 |
Ventilation duration (hours) | 24 (15.5–54) | 23 (16–62) | 0.777 |
Inotrope index | |||
0 h post-op. | 5 (4–10) | 6 (2.8–12) | 0.947 |
24 h post-op. | 3 (1-7.8) | 3.5 (0–10) | 0.898 |
48 h post-op. | 0 (0–5) | 0 (0–5) | 0.988 |
LVEF at discharge (%) | 60 (56–64) | 57 (50.5–62) | 0.007 |