Table 1.
Patient Demographics and Results of Preoperative and Postoperative Blood Analyses.a
| Parameter | Cardiac (n = 9) | Scoliosis (n = 10) | |
|---|---|---|---|
| Female/male gender | 0/9 | 8/2 | |
| Age (years) | 67 (62-71) | 17 (13-20) | |
| Body mass index (kg/m2) | 28 (25-30) | 19 (16-21) | |
| ASA score (1/2/3) | 0/1/8 | 9/1/0 | |
| Smoker (former/no) | 7/2 | 1/9 | |
| Hemoglobin concentration (g/L) | Preoperatively | 128 (120-136) | 118 (112-124) |
| Postoperatively | 110 (100-119)b | 107 (100-114)c | |
| Platelet count (× 109/L) | Preoperatively | 215 (173-256) | 256 (215-297) |
| Postoperatively | 145 (122-167)b | 236 (203-269) | |
| Fibrinogen concentration (g/L) | Preoperatively | 3.1 (2.7-3.5) | 2.4 (2.1-2.7) |
| Postoperatively | 2.7 (2.2-3.2) | 2.0 (1.7-2.3)c | |
| Factor XIII activity (%) | Preoperatively | 90 (80-101) | 76 (66-86) |
| Postoperatively | 78 (67-89)c | 64 (54-73)c | |
| EXTEM clotting time (seconds) | Preoperatively | 48 (41-55) | 54 (49-60) |
| EXTEM maximum clot firmness (mm) | Preoperatively | 65 (63-67) | 62 (59-64) |
| FIBTEM maximum clot firmness (mm) | Preoperatively | 18 (15-20) | 13 (11-15) |
Abbreviation: ASA score, American Society of Anesthesiologists score.
aMean and 95% confidence interval or number.
b P < .01, preoperatively versus postoperatively.
c P < .05.