Table 3.
Comparison of complete LPD and conversion to open procedure
| Variable | Conversion (n = 10) | Complete (n = 91) | p value |
|---|---|---|---|
| Age (years) | 64.5 (52–75) | 63 (45–80) | 0.55 |
| Sex (Male: Female) | 5: 5 | 62: 29 | 0.30 |
| BMI (kg/m2) | 24.2 (20.8–28.3) | 21.9 (17.4–27.7) | 0.02 |
| ASA classification (I:II:III) | 5: 5: 0 | 42: 47: 2 | 0.88 |
| Presence of comorbidity (Yes:No) | 4: 6 | 40: 51 | 0.81 |
| Previous abdominal surgery | 1 (10%) | 5 (5.5%) | 0.47 |
| Preoperative CA19–9 (IU/mL) | 177.5 (40.4–1790.0) | 120.4 (4.4–5041.0) | 0.47 |
| Preoperative bilirubin (μmol/L) | 64.0 (8.3–320.8) | 87.4 (4.7–303.1) | 0.57 |
| Operative time (min) | 455 (320–490) | 400 (270–680) | 0.39 |
| Estimated blood loss (mL) | 550 (200–900) | 240 (150–800) | < 0.01 |
| Postoperative hospital stay (days) | 17.5 (14–38) | 14 (9–69) | < 0.01 |
| Overall morbidity (n, %) | 5 (50%) | 17 (18.7%) | 0.04 |
| Reoperation (%) | 1 (10%) | 5 (5.5%) | 0.47 |
| Tumor size | 3.5 (1.5–5.0) | 3.0 (1.5–5.4) | 0.56 |
| Radical R0 resection (%) | 8 (80%) | 86 (94.5%) | 0.14 |
| Retrieved lymph node | 20 (16–30) | 22 (13–54) | 0.47 |
| Vascular invasion (%) | 3 (30%) | 14 (15.4%) | 0.37 |
| Perineural invasion (%) | 6 (60%) | 38 (41.8%) | 0.33 |
Note: all continuous data were showed as median (range) and compared by Mann-Whitney U test due to abnormal distribution in conversion group