Table 2.
Comparison between transfused and not transfused patients.
| Transfused (n = 54) |
Not Transfused (n = 820) |
p Value | |
|---|---|---|---|
| Male, n (%) | 9 (17) | 324 (40) | 0.00 |
| Age, year | 71 (63–74) | 66 (55–73) | <0.01 |
| BMI, kg/m2 | 25 (23–28) | 26 (23–29) | 0.22 |
| Comorbities, n (%) | |||
| Ischemic cardiomyopathy | 4 (8) | 38 (5) | 0.34 |
| Arterial hypertension | 29 (56) | 392 (49) | 0.34 |
| Diabetes | 11 (20) | 71 (9) | 0.01 |
| Use of anticoagulant/antiplatelet drugs | 14 (26) | 124 (16) | 0.04 |
| ASA, class | 2 (2–3) | 2 (1–2) | 0.00 |
| HB pre-surgery, g/dL | 12.7 (11.3–13.3) | 14 (13.2–14.9) | <0.01 |
| HCT pre-surgery, % | 38 (35–40) | 43 (40–45) | <0.01 |
| INR pre-surgery, ratio | 1 (0.95–1.04) | 1 (0.96–1.04) | 0.98 |
| PTT pre-surgery, ratio | 0.99 (0.94–1.06) | 1.01 (0.95–1.07) | 0.43 |
| Platelets, n*103/mm3 | 235 (203–266) | 232 (198–270) | 0.88 |
| Operative time, min | 133 (114–151) | 117 (95–139) | 0.00 |
| HB on day 0 after surgery, g/dL | 9.9 (9.2–10.8) * | 12.1 (11.2–13.1) * | <0.01 |
| Hb on day 1 after surgery, g/dL | 9.1 (8.8–9.9) *§ | 11.5 (10.6–12.4) *§ | <0.01 |
| HB on day 2 after surgery, g/dL | 8.3 (7.8–9.1) *§ | 10.4 (9.6–11.4) *§ | <0.01 |
| HB on day 3 after surgery, g/dL | 8.5 (7.9–9.6) *# | 9.4 (8.7–10.3) *§ | <0.01 |
| HB at transfusion, g/dL | 7.8 (7.4–7.9) * | N.A. | N.A. |
| RBC units transfused, n | 2 (2–2) | N.A. | N.A. |
| LOS, day | 6 (5–7) | 4 (4–5) | <0.01 |
Data are reported as median (interquartile); comparisons performed with 2-tail Mann-Whitney test. BMI, body mass index; ASA, American Society of Anesthesiologists classification; HB, hemoglobin; HTC, hematocrit; INR, International normalized ratio (prothrombin time); PTT partial thromboplastin time; RBC, packed red blood cell; LOS, length of stay. * p < 0.01 vs. HB pre-surgery; # p < 0.05 and § p < 0.01 vs. HB in the preceding day.