Table 1.
Patients’ characteristics
| VAWCM (n = 89) | VAC-IPOM (n = 50) | p | |
|---|---|---|---|
| Age, median in years (IQR) | 55 (48–67) | 61 (55–72) | 0.046 |
| Male patients (%) | 52 (58.4%) | 30 (60.0%) | 1.000 |
| Body mass index in kg/m2 (IQR) | 24.8 (21.0–29.2) | 27.3 (23.1–35.0) | 0.172 |
| Known malignancy (%) | 36 (41.8%) | 27 (54.0%) | 0.212 |
| Type 2 diabetes (%) | 15 (17.0%) | 6 (12.0%) | 0.471 |
| Cardiac disease (%) | 47 (52.8%) | 23 (46.0%) | 0.483 |
| Pulmonary disease (%) | 16 (18.0%) | 20 (40.0%) | 0.008 |
| Liver disease (%) | 18 (20.2%) | 14 (28.0%) | 0.303 |
| Kidney disease (%) | 20 (22.5%) | 9 (18.0%) | 0.665 |
| Anticoagulation preoperative (%) | |||
| Phenprocoumon | 1 (1.2%) | 5 (10.4%) | 0.024 |
| Platelet aggregation inhibitors | 5 (6.0%) | 4 (8.3%) | 0.723 |
| Dual anticoagulation | 11 (13.1%) | 2 (4.2%) | 0.132 |
| Immunosuppressors (%) | |||
| Immunosuppressive drugs | 1 (1.2%) | 4 (8.2%) | 0.090 |
| Cortisone | 5 (6.2%) | 2 (4.1%) | |
| Both | 4 (4.9%) | – | |
| ASA score (%) | |||
| 2 | 35 (41.7%) | 8 (16.3%) | < 0.001 |
| 3 | 43 (51.2%) | 18 (36.7%) | |
| 4 | 3 (3.6%) | 22 (44.9%) | |
| 5 | 3 (3.6%) | 2 (4.1%) | |
| Type of primary surgery (%) | |||
| Hepatobiliary surgery | 4 (4.5%) | 1 (2.0%) | 0.011 |
| Pancreatic surgery | 6 (6.7%) | – | |
| Upper GI surgery | 14 (15.7%) | 6 (12.0%) | |
| Resection of intestine with preserved continuity | 23 (25.8%) | 9 (18.0%) | |
| Resection of intestine without preserved continuity | 19 (21.3%) | 10 (20.0%) | |
| Pancreatic necrosectomy | 3 (3.4%) | – | |
| Multivisceral resections | 4 (4.5%) | 10 (20.0%) | |
| Vascular surgery | 2 (2.2%) | 4 (8.0%) | |
| Other | 14 (15.7%) | 10 (20.0%) | |
| Emergency primary procedure (%) | 41 (46.1%) | 26 (52.0%) | 0.596 |
| Prior laparotomies, no. (IQR) | 3 (1–4) | 2 (1–3) | 0.030 |
| Duration of primary operation in minutes (IQR) | 195 (135–318) | 240 (163–300) | 0.416 |
| Incision at primary procedure (%) | |||
| Median laparotomy | 64 (75.3%) | 49 (98.0%) | 0.007 |
| Transverse Laparotomy | 11 (12.9%) | 1 (2.0%) | |
| Combined | 9 (10.6%) | – | |
| Laparoscopy | 1 (1.2%) | – | |
ASA American Society of Anaesthesiology, IQR interquartile range