Skip to main content

Table 1 Distribution of patient characteristics and perioperative variables according to postoperative blood loss

From: Preoperative thrombin generation is predictive for the risk of blood loss after cardiac surgery: a research article

  All patients Group 1 Group 2 P-value
N=29 N=14 N=15
Age (years) 65 ± 10 67 ± 9 64 ± 11 0.423
Aspirin exp. preop. n (%) 27 (93,1%) 14 (100%) 13 (86,7%) 0.157
Intraoperatively     
Tranexam. acid n (%) 14 (48,3%) 9 (64,3%) 5 (33,3%) 0.096
Heparin-total (IU/kg) 336 ± 54 361 ± 66 314 ± 26 0.023
Protamine-total (mg/kg) 3.35 ± 0.52 3.55 ± 0.61 3.17 ± 0.37 0.048
Crystalloids (ml/kg) 16.9 ± 6.5 19.8 ± 6.4 14.2 ± 5.6 0.018
Colloids (ml/kg) 18.6 ± 5.2 17.2 ± 4.8 19.9 ± 5.4 0.167
PRC (units)* 0.0 (0.0-1.0) 0.0 (0.0-1.0) 0.0 (0.0-1.0) 0.591
FFP (units) 0 ± 0 0 ± 0 0 ± 0 1
PLT (units)* 0.0 (0.0-1.0) 0.0 (0.0-1.0) 0.0 (0.0-0.0) 0.301
PRC cell saver (ml/kg) 5.7 ± 2.0 5.0 ± 1.3 6.4 ± 2.3 0.048
Time on bypass (min) 76 ± 20 70 ± 18 81± 22 0.160
Time X-clamp (min) 48 ± 16 45 ± 14 52 ± 18 0.259
Postoperatively     
Blood loss 20 h (ml) 922 ± 384 620 ± 160 1205 ± 307 <0.001
PRC (units)* 1.00 (0.0-5.0) 0.0 (0.0-2.0) 2.0 (0.0-2.0) 0.002
FFP (units)* 0.0 (0.0-2.0) 0.0 (0.0-0.0) 0.0 (0.0-2.0) 0.164
PLT (units)* 0.0 (0.0-1.0) 0.0 (0.0-0.0) 0.0 (0.0-1.0) 0.020
Rethoracotomy n (%) 1 (3,4%) 0 (0%) 1 (6,7%) 0.326
  1. Data shown are mean ± SD. Comparison between the groups was done with student t-test; * median and range are presented instead of mean and SD; colloids = infusion volume and priming volume; FFP fresh frozen plasma, PLT platelets, PRC packed red cells.