Table 1. Demographic, clinical and perioperative data of study patients (n=206).
| Parameter | N |
|---|---|
| Age | 62.1±11.2 |
| Gender (F/M) | 85/121 |
| ASA status | 2.7±0.5 |
| Primary tumor (colon/rectum) | 129/77 |
| Type of metastasis (synchronous/metachronous) | 79/127 |
| Liver involvement (unilobar/bilobar) | 178/28 |
| Number of liver metastases | 1.7±1.1 |
| Tumor size (cm) | 3.8±2.3 |
| Preoperative CEA level (ng/mL) | 80.6±321.1 |
| Type of resection (minor/major) | 133/73 |
| Estimated blood loss (mL) | 604±709 |
| Blood transfusion, n (%) | 29 (14%) |
| Operative time (min) | 261±103 |
| Margin status (R0/R1) | 157/49 |
| Complications | 60 (29%) |
| ICU stay | 62 (30%) |
| Hospital stay (day) | 6.5±4.0 |
Continuous data are presented as mean ± standard error of the mean. F, female; M, male; ASA, American Society of Anesthesiologist score; CEA, carcinoembryonic antigen; ICU, intensive care unit.