Table 4.
Surgical variables according to the results of intraoperative methylene blue testing and postoperative anastomotic leaks
| Variable | IMBT group |
IMBT
|
P value | Control group |
PAL
|
P
value
|
||
|
Negative
|
Positive (%)
|
Negative
|
Positive (%)
|
|||||
| Cases | 211 | 204 | 7 (3.3) | - | 302 | 289 | 13 (4.3) | - |
| Operation time (h) | ||||||||
| < 4 | 143 | 142 | 1 (0.7) | 0.008 | 184 | 177 | 7 (4.0) | 0.577 |
| ≥ 4 | 68 | 62 | 6 (8.8) | 118 | 112 | 6 (5.1) | ||
| Amount of bleeding (mL) | ||||||||
| < 400 | 132 | 130 | 2 (1.5) | 0.136 | 202 | 194 | 8 (4.0) | 0.765 |
| ≥ 400 | 79 | 74 | 5 (6.3) | 100 | 95 | 5 (5.0) | ||
| Mode of operation | ||||||||
| TLTG | 100 | 95 | 5 (5.0) | 0.200 | 146 | 136 | 10 (6.8) | 0.046 |
| TLDG | 111 | 109 | 2 (1.8) | 156 | 153 | 3 (1.9) | ||
| Surgeon’s experience (cases) | ||||||||
| < 50 | 21 | 18 | 3(14.3) | 0.021 | 24 | 21 | 3 (12.5) | 0.074 |
| ≥ 50 | 190 | 186 | 4 (2.1) | 278 | 268 | 10 (3.6) | ||
IMBT: Intraoperative methylene blue testing; PAL: Postoperative anastomotic leak; TLTG: Totally laparoscopic total gastrectomy; TLDG: Totally laparoscopic distal gastrectomy.