Table II.
Surgical outcomes.
| Total | Right-sided colon cancer | Left-sided colon cancer | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Variable | MLS (n=79) | SLS (n=50) | P-value | MLS (n=36) | SLS (n=27) | P-value | MLS (n=43) | SLS (n=23) | P-value |
| Surgical time (min)a | 207.7±61.0 | 215.9±63.8 | 0.47 | 221.3±69.3 | 217.3±59.7 | 0.80 | 196.3±51.1 | 214.3±69.7 | 0.23 |
| Estimated blood loss (ml)a | 56.8±141.5 | 78.6±268.9 | 0.64 | 105.6±188.7 | 134.1±218.7 | 0.75 | 16.0±61.4 | 13.5±31.6 | 0.85 |
| Conversion to laparotomy (n) | 3 | 1 | 0.96 | 3 | 0 | – | 0 | 1 | – |
| Additional trocars required (n) | 0 | 1 | – | 0 | 0 | – | 0 | 1 | – |
| Length of hospital stay (days)a | 10.6±8.8 | 10.1±10.2 | 0.77 | 11.2±10.7 | 8.2±7.3 | 0.22 | 10.2±6.9 | 12.4±12.6 | 0.36 |
| Days until first bowel motiona | 4.1±3.7 | 4.1±1.9 | 0.42 | 4.3±2.1 | 4.0±1.2 | 0.32 | 4.0±1.5 | 4.4±2.8 | 0.88 |
| Complications (n) | 6 | 6 | 0.60 | 4 | 2 | 0.95 | 2 | 4 | 0.21 |
| Wound infection | 0 | 1 | 0 | 1 | 0 | 0 | |||
| Anastomotic leakage | 3 | 1 | 2 | 0 | 1 | 1 | |||
| Ileus | 1 | 1 | 1 | 0 | 0 | 1 | |||
| Urinary | 1 | 1 | 0 | 0 | 1 | 1 | |||
| Other | 1 (gastric ulcer) | 1 (pneumonia) 1 (thrombosis) | 1 (gastric ulcer) | 1 (thrombosis) | 0 | 1 (pneumonia) | |||
| Re-admission within 30 days after surgery (n) | 0 | 0 | – | 0 | 0 | – | 0 | 0 | – |
| Number of harvested lymph nodesa | 20.3±3.9 | 21.9±9.4 | 0.46 | 24.2±16.9 | 24.3±9.2 | 0.98 | 17.0±9.9 | 19.2±9.1 | 0.38 |
| Margin of specimen (mm)a | |||||||||
| Proximal margin | 104.9±64.9 | 99.7±65.5 | 0.66 | 125.2±79.6 | 128.1±69.8 | 0.88 | 87.9±43.5 | 76.3±40.6 | 0.10 |
| Distal margin | 74.6±41.9 | 82.3±57.8 | 0.38 | 84.7±42.9 | 91.9±69.5 | 0.61 | 66.2±39.6 | 71.0±38.6 | 0.63 |
| Tumor size (mm)a | 44.3±22.5 | 43.3±22.6 | 0.81 | 48.3±25.3 | 46.6±23.9 | 0.79 | 41.0±19.5 | 39.5±20.7 | 0.76 |
a
Data presented as the mean ± standard deviation. All variables were evaluated using a χ2 test or Student's t-test, as appropriate. MLS, multi-port laparoscopic surgery; SLS, single-incision laparoscopic surgery.