Table 2 Pathological findings and short-term outcomes in the LG-E and OG-E groups
Factors | LG-E group | OG-E group | P-value |
|---|---|---|---|
(n = 45) | (n = 43) | ||
Pathological findings | |||
Tumor location | |||
Upper | 6 (13%) | 15 (35%) | < .05 |
Middle | 19 (42%) | 11 (26%) | |
Lower | 20 (44%) | 17 (40%) | |
Tumor differentiation | |||
Well/moderately | 29 (64%) | 20 (47%) | NS (0.07) |
Poorly/mucinous | 16 (36%) | 23 (53%) | |
Tumor size (mm, mean ± SD) | 36 ± 20 | 69 ± 37 | < .01 |
pT stage | |||
T1 | 34 (76%) | 7 (16%) | < .01 |
T2-T4 | 11 (24%) | 36 (84%) | |
pN stage | |||
N0 | 37 (82%) | 16 (37%) | < .01 |
N1-N2 | 8 (18%) | 27 (63%) | |
TNM Stage | |||
I | 38 (84%) | 15 (35%) | < .01 |
II-IV | 7 (16%) | 28 (65%) | |
Short-term outcomes | |||
Operation time (min, mean ± SD) | 288 ± 84 | 258 ± 73 | NS (0.08) |
Blood loss (g, mean ± SD) | 86 ± 162 | 433 ± 515 | < .01 |
Lymph node dissection | |||
< D2 | 38 (84%) | 20 (47%) | < .01 |
D2 | 7 (16%) | 23 (53%) | |
Intraoperative complication | 0 | 0 | NS |
Days to solid diet (days, mean ± SD) | 5.6 ± 5.2 | 5.4 ± 2.4 | NS |
Length of hospital stay (days, mean ± SD) | 19 ± 9 | 24 ± 13 | < .05 |
Postoperative complication | |||
Mortality | 0 | 0 | NS |
Overall morbidity | 13 (29%) | 23 (53%) | < .05 |
Overall morbidity (CD grade 3 or more) | 2 ( 4%) | 6 (14%) | NS |
Anastomotic leakage | 1 (2%) | 4 (9%) | NS |
Ileus | 0 | 1 (2%) | NS |
Enterocolitis | 2 (4%) | 3 (7%) | NS |
Intraabdominal abscess | 0 | 1 (2%) | NS |
Delayed gastric emptying | 4 (9%) | 7 (16%) | NS |
Pneumonia | 3 (7%) | 6 (14%) | NS |
Others | 4 (9%) | 3 (7%) | NS |