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Table 1 Demographic, clinical and transfusion data by patient group

From: Intra-operative intravenous fluid restriction reduces perioperative red blood cell transfusion in elective cardiac surgery, especially in transfusion-prone patients: a prospective, randomized controlled trial

Variable Group A (fluid restriction) Group B (liberal fluid administration)
Number of pts, n 100 92
Age (years) 66.0 ± 7.9 65.5 ± 8.3
Female gender, n (%) 17 (17.0%) 16 (17.4%)
Weight (kg) 77.2 ± 11.5 75.5 ± 10.6
Height (cm) 167.0 ± 7.8 168.0 ± 7.7
BMI 27.6 ± 3.5 26.7 ± 3.1
BSA (m2) 1.84 ± 0.17 1.84 ± 0.16
NYHA I-II, n (%) 57 (57.0%) 55 (59.8%)
NYHA III-IV, n (%) 43 (43.0%) 37 (40.2%)
LVEF (%) 50.2 ± 10.2 48.6 ± 12.1
Diabetes , n (%) 21 (21.0%) 20 (21.7%)
COPD, n (%) 14 (14.0%) 12 (13.0%)
Preop. Hct (%) 40.2 ± 4.42 40.6 ± 3.87
CABG, n (%) 88 (88.0%) 79 (85.9%)
Number of grafts 2.8 ± 0.6 2.7 ± 0.6
AVR + CABG 4 (4%) 4 (4.3%)
AVR 5 (5%) 6 (6.5%)
MVR 3 (3%) 2 (2.1%)
ASD Repair 0 (0%) 1 (1.1%)
CPB time (min) 96.9 ± 22.6 93.1 ± 20.0
AOX (min) 69.2 ± 20.0 67.9 ± 19.2
Operation time (min) 243 ± 49.4 236 ± 47.1
PRC transfused (total) 113 (1.13 ± 1.15*) 176 (1.91 ± 1.35)
PRC transfused in OR, n (mean ± SD) 31 (0.31 ± 0.71*) 111 (1.21 ± 3.15)
PRC transfused in ICU, n (mean ± SD) 82 (0.82 ± 0.98*) 65 (0.71 ± 0.88)
Transfused pts, n (%) 62 (62.0%) 75 (81.5%)
Transfused pts in OR, n (%) 19 (19.0%) 62 (67.4%)
Transfused pts in ICU, n (%) 51 (51.0%) 42 (45.7%)
PRC/pt transfused in OR (mean ± SD) 1.63 ± 0.68 ** 1.79 ± 0.70
PRC/pt transfused in ICU (mean ± SD) 1.61 ± 0.78 ** 1.55 ± 0.63
Females transfused, n (%) 16 (94.1%) 16 (100.0%)
Pts receiving ≥ 4 PRC u (OR + ICU) 2 (2.0%) 13 (14.1%)
  1. * denotes mean ± SD for the distribution of PRC units/pt in total
  2. ** denotes mean ± SD for the distribution of PRC units per transfused patient
  3. p < 0.001
  4. p < 0.0001