Table 4.
Intra- and post-operative outcomes of OR, LR, and CONV
| Colon | Rectum | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Laparoscopic resections | Laparoscopic resections | ||||||||||
| OR | LR | CONV | p* | p* | OR | LR | CONV | p* | p* | ||
| Total N | 6800 | 14601 | 1643 | CONV vs. LR | CONV vs. OR | 3250 | 7231 | 843 | CONV vs. LR | CONV vs. OR | |
| n (%) | n (%) | n (%) | n (%) | n (%) | n (%) | ||||||
| Intra-operative complications and postoperative outcomes | |||||||||||
| Intra-operative complication | No | 6505 (97) | 14,225 (99) | 1447 (89) | < 0.001 | < 0.001 | 3029 (95) | 6995 (97.5) | 724 (87) | < 0.001 | < 0.001 |
| Blood loss with transfusion | 30 (0.4) | 34 (0.2) | 42 (2.6) | 37 (1.2) | 22 (0.3) | 18 (2.2) | |||||
| Splenic trauma with splenectomy | 16 (0.2) | 9 (0.1) | 3 (0.2) | 3 (0.1) | 3 (0) | 2 (0.2) | |||||
| Pancreatic/liver/choledochus/gallbladder trauma | 8 (0.1) | 5 (0) | 7 (0.4) | 3 (0.1) | 2 (0) | 1 (0.1) | |||||
| Intestinal trauma for which surgical intervention | 57 (0.9) | 69 (0.5) | 37 (2.3) | 31 (1) | 38 (0.5) | 23 (2.8) | |||||
| Ureter or Urethra trauma | 12 (0.2) | 10 (0.1) | 10 (0.6) | 14 (0.4) | 33 (0.5) | 11 (1.3) | |||||
| Bladder trauma | 6 (0.1) | 20 (0.1) | 1 (0.1) | 5 (0.2) | 11 (0.2) | 5 (0.6) | |||||
| Vaginal Trauma | 0 (0) | 0 (0) | 2 (0.1) | 10 (0.3) | 11 (0.2) | 1 (0.1) | |||||
| Different | 46 (0.7) | 60 (0.4) | 77 (4.7) | 55 (1.8) | 58 (0.8) | 47 (5.7) | |||||
| Lymph nodes removed | 10 + | 6090 (90) | 13,190 (90) | 1457 (89) | n.s. | n.s. | 2486 (77) | 5826 (81) | 688 (82) | n.s. | n.s. |
| Radical resection | R0 | 6650 (99) | 14,378 (99.6) | 1608 (99) | n.s. | n.s. | 3109 (97) | 7009 (97.8) | 814 (97) | n.s. | n.s. |
| R1 | 42 (0.6) | 54 (0.4) | 14 (0.9) | 102 (3.2) | 155 (2.2) | 25 (3) | |||||
| R2 | 15 (0.2) | 8 (0,1) | 3 (0.2) | 7 (0.2) | 4 (0.1) | 0 (0) | |||||
| Circumferential margin | ≤ 1 mm | 162 (5) | 268 (3.7) | 25 (3) | n.s. | 0.012 | |||||
| Complication within 30 days after operation | Yes | 2167 (32) | 3062 (21) | 639 (39) | < 0.001 | < 0.001 | 1365 (42) | 2273 (32) | 382 (45) | < 0.001 | n.s. |
| If yes, general complication | Yes | 1401 (65) | 1817 (60) | 405 (63) | n.s. | n.s. | 829 (61) | 1265 (56) | 226 (59) | n.s. | n.s. |
| If yes, Surgical complication | Yes | 1234 (58) | 1859 (61) | 411 (65) | n.s. | 0.002 | 820 (62) | 1460 (65) | 249 (66) | n.s. | n.s. |
| Anastomotic leakage or abscess at anastomosis | Yes | 359 (5.7) | 665 (4.8) | 111 (7.3) | < 0.001 | 0.021 | 141 (9.3) | 374 (8.6) | 35 (7.2) | n.s. | n.s. |
| Crude complicated coursea | Yes | 1207 (18) | 1589 (11) | 387 (24) | < 0.001 | < 0.001 | 827 (25) | 1324 (18) | 244 (28.9) | < 0.001 | 0.039 |
| If a reintervention was performed, what was the nature of reintervention | Radiologic | 41 (6) | 63 (5.5) | 12 (5.2) | n.s. | n.s. | 53 (12) | 71 (8.1) | 14 (10) | < 0.001 | n.s. |
| laparoscopic | 8 (1.2) | 219 (20) | 2 (0.9) | 10 (2.3) | 212 (24) | 6 (4.3) | |||||
| Open | 589 (86) | 751 (70) | 201 (87) | 277 (64) | 373 (43) | 90 (64) | |||||
| Different | 47 (6.9) | 57 (5.3) | 17 (7.3) | 96 (22) | 222 (25) | 30 (21) | |||||
| Crude mortality | 232 (3.4) | 210 (1.4) | 44 (2.7) | n.s. | n.s. | 80 (2.5) | 87 (1.2) | 19 (2.3) | 0.011 | n.s. | |
| Median LOS (days) until discharge or death | 10.1 | 7.5 | 11 | < 0.001** | < 0.001** | 12.5 | 9.7 | 13.9 | < 0.001** | 0.003** | |
OR open resection, LR laparoscopically completed resection, CONV laparoscopic converted to open
*Chi-square test was used for all categorical variables
**Mann–Whitney U test. LOS length of stay. n.s. not significant (p > 0.05)
aPostoperative complication resulting in a hospital stay > 14 days and/or a reintervention and/or mortality