Table 3.
Quality comparison in laparoscopic right hemicolectomy between two surgical methods
| Variable | Overall cohort
|
After PSM
|
|||
|---|---|---|---|---|---|
| SLRC (n=34) | CLRC (n=111) | P-value | CLRC (n=68) | P-value | |
|
|
|
|
|
|
|
| Operation duration (minutes) | 206.9±45.4 | 237.5±73.0 | 0.004 | 240.0±74.8 | 0.007 |
| Estimated blood loss (mL) | 85.3±133.3 | 117.3±104.3 | 0.146 | 105.4±90.8 | 0.371 |
| Intraoperative blood transfusion (mL) | 55.9±189.4 | 47.7±136.1 | 0.783 | 58.8±154.8 | 0.933 |
| Intraoperative fluid intake (mL) | 2780.8±629.4 | 2898.4±818.0 | 0.043 | 2892.0±736.8 | 0.454 |
| Combined resectiona (n) | 1 (2.9) | 4 (3.6) | 0.666 | 2 (2.9) | 0.743 |
| Conversion (n) | 1 (2.9) | 10 (9.0) | 0.242 | 6 (8.8) | 0.406 |
| Harvested LN number (n) | 28.4±12.1 | 28.7±13.5 | 0.916 | 28.2±13.2 | 0.935 |
| N1 station | 11.5±8.5 | 11.1±6.7 | 0.766 | 10.8±6.5 | 0.650 |
| N2 station | 6.9±4.1 | 7.1±5.1 | 0.868 | 6.8±5.0 | 0.953 |
| N3 station | 6.3±5.0 | 7.9±6.0 | 0.455 | 6.6±5.0 | 0.658 |
| Positive LN number (n) | 0.6±1.8 | 2.0±6.5 | 0.203 | 0.9±2.1 | 0.366 |
| N1 station | 0.3±0.8 | 1.0±3.2 | 0.029 | 0.5±1.6 | 0.407 |
| N2 station | 0.1±0.2 | 0.5±2.1 | 0.028 | 0.2±0.6 | 0.077 |
| N3 station | 0.2±0.6 | 0.3±1.1 | 0.401 | 0.2±0.5 | 1.000 |
| Distal length to tumor (cm) | 14.9±6.2 | 14.0±5.3 | 0.389 | 13.9±5.3 | 0.413 |
| Proximal length to tumor (cm) | 15.4±5.0 | 18.4±6.3 | 0.011 | 18.0±4.5 | 0.009 |
| Positive resection margin (n) | 0 | 0 | – | 0 | – |
Notes:
a
Adjacent organs were resected along with tumor-involved bowel segments. Values are presented as mean ± SD or number (%). Italicized P-value indicates significant differences between the two groups. “–” indicates P-value not available.
Abbreviations: CLRC, conventional laparoscopic right hemicolectomy; LN, lymph node; PSM, propensity score matching; SLRC, superior mesenteric artery-guided laparoscopic right hemicolectomy.