Table 2.
Demographics and postoperative complication rate for colon cancer referred to preoperative weight loss
| Preoperative weight loss | No preoperative weight loss | Total | |
|---|---|---|---|
| Patient population (n/(%)) | 130 (18.7) | 567 (81.3) | 697 (100) |
| Age [year] | 67 (31–94) | 67 (25–96) | 67 (25–96) |
| Gender (n/(%)) | |||
| Male | 69 (53) | 305 (54) | 374 (54) |
| Female | 61 (47) | 262 (46) | 323 (46) |
| CCI (points/(%)) | |||
| 0 points | 35 (27) | 183 (32) | 218 (31) |
| 1–2 points | 35 (27) | 148 (26) | 183 (26) |
| > 2 points | 60 (46) | 236 (42) | 296 (42) |
| ASA scorex (n/(%)) | |||
| 2 | 79 (66) | 321 (59) | 400 (60) |
| 3 | 39 (33) | 205 (36) | 244 (37) |
| 4 | 2 (2) | 18 (3) | 20 (3) |
| 5 | - | 2 (< 1) | 2 (< 1) |
| Localization (n/(%)) | |||
| Ascending colon | 60 (46) | 271 (48) | 331 (48) |
| Transverse colon | 12 (9) | 49 (9) | 61 (9) |
| Descending colon | 17 (13) | 70 (12) | 87 (13) |
| Sigmoid colon | 41 (32) | 177 (31) | 218 (31) |
| UICC (n/(%)) | |||
| Stage 0y | 2 (2) | 12 (2) | 14 (2) |
| Stage I | 10 (8) | 113 (20) | 123 (18) |
| Stage II | 51 (40) | 175 (31) | 226 (33) |
| Stage III | 24 (19) | 126 (22) | 150 (22) |
| Stage IV | 43 (33) | 140 (25) | 183 (26) |
| Resection (n/(%)) | |||
| Right hemicolectomy | 67 (52) | 278 (49) | 345 (49) |
| Transverse colon resection | 3 (2) | 23 (4) | 26 (4) |
| Left hemicolectomy | 24 (18) | 75 (13) | 99 (14) |
| Sigmoid colon resection | 30 (23) | 126 (22) | 156 (22) |
| Multisegmental resection | 6 (5) | 65 (11) | 71 (10) |
| Approach (n/(%)) | |||
| Open surgery | 115 (88) | 536 (95) | 651 (93) |
| Laparoscopic surgery | 15 (12) | 31 (5) | 46 (7) |
| Bridge-to-surgery | 6 (5) | 31 (5) | 37 (5) |
| Emergency surgery | 6 (5) | 52 (9) | 58 (8) |
| Simultaneous HIPEC | 3 (2) | 22 (4) | 25 (4) |
| Neoadjuvant therapy | |||
| Yes | 11 (8.5) | 15 (2.7) | 26 (3.7) |
| No | 119 (91.5) | 552 (97.3) | 671 (96.3) |
| Wound infection (n/(%)) | |||
| Yes | 7 (5.4) | 47 (8.3) | 54 (7.7) |
| No | 123 (94.6) | 520 (91.7) | 643 (92.3) |
| Level of wound infection (n/(%)) | |||
| I° | 5 (3.4) | 31 (5.5) | 36 (66.7) |
| II° | - | 5 (0.9) | 5 (9.3) |
| III° | 2 (1.5) | 3 (0.5) | 5 (9.3) |
| IV° | - | 7 (1.2) | 7 (13.0) |
| V° | - | 1 (0.2) | 1 (1.9) |
| VI° | - | - | - |
| Total | 7 (5.4) | 47 (8.3) | 54 (100) |
| Anastomotic leakage (n/(%)) | |||
| Yes | 8 (6.2) | 14 (2.5) | 697 (100) |
| No | 122 (93.8) | 553 (97.5) | 22 (3.2) |
| Level of anastomotic leakage (n/(%)) | |||
| I° | 1 (0.8) | 1 (0.2) | 2 (9.7) |
| II° | - | - | - |
| III° | - | - | - |
| IV° | 4 (3.1) | 6 (1.1) | 10 (45.5) |
| V° | 1 (0.8) | 6 (1.1) | 7 (31.8) |
| VI° | 2 (1.5) | 1 (0.2) | 3 (13.6) |
| Total | 8 (6.2) | 14 (2.5) | 22 (100) |
| In-hospital mortality (n/(%)) | |||
| sMOF | 4 (3.1) | 7 (1.2) | 11 (37.9) |
| CV/CP | 5 (3.8) | 13 (2.3) | 18 (62.1) |
| Total | 9 (6.9) | 20 (3.5) | 29 (100) |
CC0I Charlson Comorbidity Index, ASA score American Society of Anesthesiologists, UICC Union for International Cancer Control, HIPEC hyperthermic intraperitoneal chemotherapy, sMOF septic multi-organ failure, CV/CP cardiovascular/cardiopulmonary conditional organ failure
xPercentages refer to 666 patients because it was undocumented in 31 patients
yUICC 0 was awarded for histopathological findings of a pTis