Table 3 Pathological findings and short-term outcomes in the LG-E and LG-NE groups
Factors | LG-E group | LG-NE group | P-value |
|---|---|---|---|
(n = 45) | (n = 329) | ||
Pathological findings | |||
Tumor location | |||
Upper | 6 (13%) | 62 (19%) | NS |
Middle | 19 (42%) | 136 (41%) | |
Lower | 20 (44%) | 131 (40%) | |
Tumor differentiation | |||
Well/moderately | 29 (64%) | 174 (53%) | NS |
Poorly/mucinous | 16 (36%) | 155 (47%) | |
Tumor size (mm, mean ± SD) | 36 ± 20 | 31 ± 21 | NS |
pT stage | |||
T1 | 34 (76%) | 239 (83%) | NS |
T2-T4 | 11 (24%) | 90 (27%) | |
pN stage | |||
N0 | 37 (82%) | 265 (81%) | NS |
N1-N2 | 8 (18%) | 64 (19%) | |
TNM Stage | |||
I | 38 (84%) | 271 (82%) | NS |
II-IV | 7 (16%) | 58 (18%) | |
Short-term outcomes | |||
Operation time (min, mean ± SD) | 288 ± 84 | 306 ± 77 | NS |
Blood loss (g, mean ± SD) | 86 ± 162 | 102 ± 217 | NS |
Lymph node dissection | |||
< D2 | 38 (84%) | 256 (78%) | NS |
D2 | 7 (16%) | 73 (22%) | |
Postoperative complication | |||
Mortality | 0 | 0 | NS |
Overall morbidity | 13 (29%) | 78 (24%) | NS |
Overall morbidity (CD grade 3 or more) | 2 ( 4%) | 26 (8%) | NS |
Anastomotic leakage | 1 (2%) | 5 (2%) | NS |
Ileus | 0 | 1 (0.3%) | NS |
Enterocolitis | 2 (4%) | 2 (0.6%) | NS (0.07) |
Intraabdominal abscess | 0 | 4 (1%) | NS |
Delayed gastric emptying | 4 (9%) | 38 (12%) | NS |
Pneumonia | 3 (7%) | 8 (2%) | NS |
Others | 4 (9%) | 17 (5%) | NS |