Table 1.
Preoperative data and intraoperative parameters of two groups.
| Variables | Before PSM |
After PSM |
||||
|---|---|---|---|---|---|---|
| Group F |
Group C |
P |
Group F |
Group C |
P |
|
| n = 38 (%) | n = 301 (%) | n = 35 (%) | n = 107 (%) | |||
| Sex | ||||||
| Female | 7 (18.4) | 61 (20.3) | 0.884 | 6 (17.1) | 23 (21.5) | 0.579 |
| Male | 31 (81.6) | 240 (79.7) | 29 (82.9) | 84 (78.5) | ||
| Etiology | ||||||
| Cirrhosis | 19 (50.0) | 166 (55.1) | 0.082 | 17 (48.6) | 58 (54.2) | 0.302 |
| Cirrhosis complicated with liver cancer | 9 (23.6) | 95 (31.6) | 9 (25.7) | 31 (29.0) | ||
| Liver cancer | 8 (21.1) | 21 (7.0) | 7 (20.0) | 9 (8.4) | ||
| Acute liver failure | 2 (5.3) | 19 (6.3) | 2 (5.7) | 9 (8.4) | ||
| Comorbidity | ||||||
| Diabetes mellitus | 3 (7.9) | 40 (13.3) | 0.381 | 3 (8.6) | 13 (12.1) | 0.561 |
| Hypertension | 4 (10.5) | 45 (15.0) | 0.477 | 4 (11.4) | 14 (13.1) | 0.798 |
| ASA classification | ||||||
| Ⅲ | 31 (81.6) | 223 (74.1) | 0.230 | 28 (80.0) | 79 (73.8) | 0.457 |
| Ⅳ | 6 (15.8) | 76 (25.2) | 6 (17.1) | 27 (25.2) | ||
| Ⅴ | 1 (2.6) | 2 (0.7) | 1 (2.9) | 1 (1) | ||
| BMI, kg/m2 Mean (SD) |
22.3 (3.14) | 22.7 (3.36) | 0.481 | 22.3 (2.93) | 22.6 (3.19) | 0.611 |
| Age (y) Median (IQR) |
50 (18.5) | 55 (13.5) | 0.010 | 51 (19) | 51 (15) | 0.624 |
| MELD score Median (IQR) | 10.8(12.58) | 12.9(13.3) | 0.174 | 11(12) | 12.5(14) | 0.527 |
| Operation duration (min) Median (IQR) |
353 (103) | 333 (88) | 0.132 | 353 (101) | 325 (82) | 0.066 |
| Anesthesia duration (min) Median (IQR) |
395 (98) | 377 (94) | 0.113 | 395 (92) | 365 (92) | 0.098 |
| Total amount of transfusion (mL) Median (IQR) |
5240 (1733) | 5317.7 (2270) | 0.503 | 5210 (1740) | 5330 (2340) | 0.751 |
| Packed red blood cell (mL) Median (IQR) |
800 (1200) | 900 (1546) | 0.965 | 800 (1200) | 1100 (1600) | 0.941 |
| Fresh frozen plasma (mL) Median (IQR) |
1260 (713) | 1340 (815) | 0.877 | 1260 (750) | 1400 (730) | 0.923 |
| Autologous blood transfusion volume (mL) Median (IQR) |
0 (300) | 0 (112.5) | 0.295 | 0 (300) | 0 (250) | 0.584 |
| blood loss (mL) Median (IQR) |
1500 (1000) | 1000 (973) | 0.029 | 1500 (1000) | 1000 (1200) | 0.072 |
| Hourly urine output (mL/h) Median (IQR) |
333 (258) | 193 (163) | <0.001 | 329 (257) | 281 (207) | 0.168 |
| EOS Ph Median (IQR) |
7.419 (0.096) | 7.385 (0.090) | 0.007 | 7.41 (0) | 7.4 (0) | 0.210 |
| EOS lactate Median (IQR) |
3.75 (3.4) | 3.9 (3.5) | 0.776 | 3.5 (3) | 3.6 (3) | 0.696 |
| PO2/FiO2 (SD) | 450 (78) | 438 (110) | 0.099 | 454 (80) | 445 (107) | 0.282 |
| PCO2 (SD) | 34.7 (5.3) | 34.6 (6.0) | 0.897 | 35.0 (5.2) | 34.4 (4.7) | 0.519 |
Abbreviations: ASA, American Society of Anesthesiologists; BMI, body mass index; EOS, end-of-surgery; MELD, model for end-stage liver disease; PO2, partial pressure of oxygen; FiO2, fraction of inspired oxygen; PCO2, partial pressure of carbon dioxide.