Table 3. Analysis of blood tests, CTA scan, surgical and perioperative treatment of 198 patients.
| Variable | Total (N=198) | GIB group (N=38) | Control group (N=160) | t/χ2 | P |
|---|---|---|---|---|---|
| Preoperative leukocyte (×109/L) | 11.5 (4.1) | 12.9 (3.8) | 10.7 (4.0) | −2.717 | 0.008 |
| Preoperative hemoglobin (g/L) | 126 (18.0) | 122 (20.0) | 127 (18.0) | 1.469 | 0.14 |
| Preoperative platelet (×109/L) | 192.8 (77.7) | 187.1 (87.2) | 196.2 (72.0) | 0.553 | 0.58 |
| Preoperative PT (s) | 14.7 (1.2) | 14.6 (1.2) | 14.7 (1.2) | 0.422 | 0.67 |
| Preoperative APTT (s) | 39.4 (8.6) | 41.7 (12.0) | 38.0 (5.4) | −1.979 | 0.05 |
| Preoperative D-dimer (ng/mL) | 9,137.1 (7,771.1) | 13,410.6 (7,559.6) | 8,209.3 (7,524.6) | −3.596 | <0.001 |
| Preoperative creatinine (μmol/L) | 110.9 (99.5) | 140.5 (131.3) | 104.2 (89.9) | −1.990 | 0.04 |
| Preoperative total bilirubin (μmol/L) | 17.4 (9.0) | 17.5 (8.0) | 17.4 (9.7) | −0.051 | 0.96 |
| Preoperative ALT (U/L) | 49.9 (99.5) | 41.7 (44.6) | 54.9 (121.6) | 0.626 | 0.53 |
| Preoperative lactate (mmol/L) | 1.4 (0.6) | 1.4 (0.8) | 1.4 (0.5) | −0.105 | 0.91 |
| Preoperative LVEF* | 63 (7.0) | 62 (5.0) | 64 (7.0) | 1.021 | 0.30 |
| Concomitant celiac trunk and superior mesenteric artery hypoperfusion | 22 (11.1) | 13 (34.2) | 9 (5.6) | 25.405 | <0.001 |
| Extracorporeal (min) | |||||
| CPB | 244.6 (65.6) | 251.7 (80.6) | 243.0 (61.7) | −0.731 | 0.46 |
| ACC | 129.4 (42.2) | 129.5 (42.2) | 129.3 (42.3) | −0.019 | 0.98 |
| DHCA | 19.2 (10.8) | 19.9 (18.1) | 19.1 (8.3) | −0.379 | 0.70 |
| Intraoperative RBC transfusion (mL) | 546 (411.0) | 734 (409.0) | 501 (400.0) | −3.213 | 0.002 |
| Intraoperative PLT transfusion (unit) | 1.1 (0.7) | 0.9 (0.5) | 1.1 (0.7) | 1.636 | 0.10 |
| Type of aortic cannulation, n (%) | 0.291 | 0.58 | |||
| TEE guided aortic arch cannulation | 172 (86.9) | 32 (84.2) | 140 (87.5) | ||
| Axillary artery cannulation | 26 (13.1) | 6 (15.8) | 20 (12.5) | ||
Data are presented as mean (SD) unless otherwise specified. *, LVEF from the preoperative echocardiography. CTA, computed tomography angiography; GIB, gastrointestinal bleeding; PT, prothrombin time; APTT, activated partial thromboplastin time; ALT, alanine transaminase; LVEF, left ventricular ejection fraction; CPB, cardiopulmonary bypass; ACC, aortic cross clamp; DHCA, deep hypothermic circulatory arrest; RBC, red blood cell; PLT, platelet; TEE, transesophageal echocardiography; SD, standard deviation.