Ann Coloproctol > Epub ahead of print |
|
Variable | Robotic surgery (n=70) | Open surgery (n=67) | P-value |
---|---|---|---|
Specimen length (cm) | 29.1±8.6 | 33.8±9.9 | 0.004 |
PRM (cm) | 21.7±8.7 | 26.4±10.6 | 0.006 |
DRM (cm) | 4.25±3.4 | 3.9±2.02 | 0.432 |
CRM (mm) | 9.7±7.1 | 8.1±8.3 | 0.230 |
Complete MRF | 68 (97.1) | 62 (92.5) | 0.299 |
Tumor length (cm) | 3.3±1.2 | 3.8±1.6 | 0.285 |
Tumor location (cm) | 0.153 | ||
0–5 | 15 (21.4) | 20 (29.9) | |
6–10 | 29 (41.4) | 32 (47.8) | |
11–15 | 26 (37.1) | 15 (22.4) | |
Ligation typea (all operations) | 0.528 | ||
Central (n=107) | 55 | 52 | |
Peripheral (n=30) | 15 | 15 | |
Vessel length (cm) | 8.84±2.6 | 8.78±2.4 | 0.891 |
Lymph nodes | 33 (5–127) | 40 (6–86) | |
Total number | 35.8±21.8 | 39.6±16.5 | 0.604 |
At area A | 11 (0–71) | 16 (0–46) | 0.275 |
At area B | 18 (1–73) | 16 (1–54) | 0.811 |
At area C | 2 (0–8) | 2 (0–12) | 0.588 |
Pathological T category | 0.002 | ||
0 | 0 (0) | 5 (7.5) | |
1 | 8 (11.4) | 3 (4.5) | |
2 | 28 (40.0) | 17 (25.4) | |
3 | 31 (44.3) | 28 (41.8) | |
4 | 3 (4.3) | 14 (20.9) | |
Pathological N category | 0.456 | ||
0 | 49 (70.0) | 42 (62.7) | |
1 | 20 (28.6) | 22 (32.8) | |
2 | 1 (1.4) | 3 (4.5) | |
Pathological M category | 0.221 | ||
0 | 68 (97.1) | 62 (92.5) | |
1 | 2 (2.9) | 5 (7.5) | |
Pathological stage | 0.060 | ||
0 | 0 (0) | 4 (6.0) | |
I | 6 (8.6) | 1 (1.5) | |
II | 41 (58.6) | 37 (55.2) | |
III | 21 (30.0) | 20 (29.9) | |
IV | 2 (2.9) | 5 (7.5) |
Values are presented as mean±standard deviation, number (%), number only, or median (range).
Area A, mesorectum; area B, mesocolon; and area C, 2–3 cm around the arterial ligation site.
PRM, proximal resection margin; DRM, distal resection margin; CRM, circumferential resection margin; MRF, mesorectal fascia.
Histopathological review of low anterior resection for rectal cancer.1993 June;9(2)