Table 2.
Comparison of operative characteristics of PDAC patients between the OPD and LPD groups
| Characteristic | Original cohort | P | Matched cohort | P | ||
|---|---|---|---|---|---|---|
| OPD group (n = 230) |
LPD group (n = 79) |
OPD group (n = 93) |
LPD group (n = 55) |
|||
| Operative time [min, median (IQR)] | 260.5 (210.0–360.0) | 330.0 (260.0–376.0) | < 0.001 | 260.0 (207.5–325.5) | 330.0 (260.0–360.0) | < 0.001 |
| Estimated blood loss [mL, median (IQR)] | 200.0 (100.0–400.0) | 150.0 (100.0–200.0) | < 0.001 | 200.0 (150.0–350.0) | 150.0 (100.0–200.0) | 0.001 |
| Blood transfusion [cases (%)] | 24 (10.4) | 19 (24.1) | 0.003 | 7 (7.5) | 16 (29.1) | < 0.001 |
| No. of resected lymph nodes [median (IQR)] | 11.0 (7.0–15.0) | 18.0 (14.0–22.0) | < 0.001 | 11.0 (7.0–14.5) | 18.0 (13.0–25.0) | < 0.001 |
| No. of positive lymph nodes [median (IQR)] | 0 (0–2.0) | 0 (0–2.0) | 0.761 | 0 (0–2.0) | 0 (0–2.0) | 0.909 |
| Positive lymph node ratio [median (IQR)] | 0 (0–0.14) | 0 (0–0.09) | 0.353 | 0 (0–0.16) | 0 (0–0.08) | 0.366 |
| R0 resection [cases (%)] | 221 (96.1) | 79 (100) | 0.163 | 88 (94.6) | 55 (100) | 0.201 |
PDAC pancreatic ductal adenocarcinoma, OPD open pancreaticoduodenectomy, LPD laparoscopic pancreaticoduodenectomy, IQR interquartile range