Copyright: ©Author(s) 2026.
World J Gastrointest Surg. Apr 27, 2026; 18(4): 118003
Published online Apr 27, 2026. doi: 10.4240/wjgs.v18.i4.118003
Published online Apr 27, 2026. doi: 10.4240/wjgs.v18.i4.118003
Table 1 Characteristics of the patients and postoperative anastomotic leakage, n (%)
| Parameters | Non-AL | AL | SD | P value | P value1 |
| Number of patients | 570 | 109 | - | - | - |
| Age (years), mean ± SD | 61.66 ± 7.67 | 62.50 ± 6.55 | 0.12 (-0.09 to 0.32) | 0.286 | 0.435 |
| BMI (kg/m2), mean ± SD | 22.63 ± 2.79 | 22.37 ± 2.76 | 0.10 (-0.11 to 0.30) | 0.365 | 0.369 |
| Length of RGEA measured with CTA (cm), mean ± SD | 28.36 ± 3.69 | 23.53 ± 2.46 | 1.54 (1.32, 1.76) | < 0.001 | < 0.001 |
| Sex (male/female) | 468/102 | 82/22 | 0.06 (-0.15 to 0.26) | 0.571 | - |
| Smoking history | 0.14 (-0.07 to 0.34) | 0.396 | - | ||
| Never smoking | 332 (58.25) | 61 (55.96) | - | ||
| Previously smoking | 120 (21.05) | 29 (26.61) | - | ||
| Presently smoking | 118 (20.70) | 19 (17.43) | - | ||
| Neoadjuvant therapy | 0.23 (0.04, 0.43) | 0.115 | - | ||
| No | 342 (61.62) | 75 (60.48) | - | ||
| Chemotherapy | 141 (25.41) | 24 (19.35) | - | ||
| Chemotherapy with immunotherapy | 49 (8.83) | 19 (15.32) | - | ||
| Others | 23 (4.14) | 6 (4.84) | - | ||
| Hypertension (yes/no) | 59/511 | 15/94 | 0.10 (-0.10 to 0.31) | 0.295 | - |
| Diabetes mellitus (yes/no) | 19/551 | 15/94 | 0.06 (-0.14 to 0.27) | 0.516 | - |
| Family history of cancer (yes/no) | 12/558 | 3/106 | 0.04 (-0.16 to 0.25) | 0.674 | - |
| Surgical method (MI/open) | 569/1 | 108/1 | 0.10 (-0.10 to 0.31) | 0.190 | 0.295 |
Table 2 Segmented regression analysis of the association between right gastroepiploic artery length and risk of anastomotic leakage
| Outcome | Estimated (95%CI) | P value |
| Model I: Linear effect | 0.5 (0.4, 0.6) | < 0.001 |
| Model II: Threshold (K) | 27.80 cm | - |
| Segmental effect 1 (< K) | 0.4 (0.3, 0.5) | < 0.001 |
| Segmental effect 2 (> K) | 0.9 (0.7, 1.2) | 0.638 |
| Difference between 2 and 1 | 2.7 (1.7, 4.2) | < 0.001 |
| Predicted log relative risk at the cutoff point | -4.0 (-4.7 to -3.2) | - |
| Likelihood ratio test | - | < 0.001 |
- Citation: Sowe B, Lei P, Tang GX, Yang FJ, Wang SH, Song T. Computed tomographic angiography measured right gastroepiploic artery length and anastomotic leakage after McKeown esophagectomy: A retrospective cohort study. World J Gastrointest Surg 2026; 18(4): 118003
- URL: https://www.wjgnet.com/1948-9366/full/v18/i4/118003.htm
- DOI: https://dx.doi.org/10.4240/wjgs.v18.i4.118003