Copyright: ©Author(s) 2026.
World J Gastrointest Surg. Sep 27, 2026; 18(9): 116919
Published online Sep 27, 2026. doi: 10.4240/wjgs.116919
Published online Sep 27, 2026. doi: 10.4240/wjgs.116919
Table 3 Endoscopic findings before surgery, n (%)
| Parameters | Conventional endoscopy group (n = 67) | Combined endoscopy group (n = 43) | t/χ2 | P value |
| Basal gastric mucosa | ||||
| Atrophic gastric mucosa | 51 (76.12) | 33 (76.74) | 0.006 | 0.940 |
| Remnant stomach | 7 (10.45) | 4 (9.30) | 0.000 | 1.000 |
| Deformation of the pyloric canal or antral chamber | 2 (2.99) | 1 (2.33) | 0.000 | 1.000 |
| Ulcer condition | ||||
| Specific distribution of ulcers | 0.239 | 0.887 | ||
| Single ulcer | 45 (67.16) | 30 (69.77) | ||
| Multiple ulcer | 15 (22.39) | 8 (18.60) | ||
| None | 7 (10.45) | 5 (11.63) | ||
| Distribution of ulcer sites | ||||
| Gastric angle | 44 (65.67) | 28 (65.12) | 0.004 | 0.952 |
| Pyloric antrum | 13 (19.40) | 8 (18.60) | 0.011 | 0.917 |
| Body of stomach | 10 (14.93) | 6 (13.95) | 0.020 | 0.888 |
| Fundus and cardia of stomach | 2 (2.99) | 1 (2.33) | 0.000 | 1.000 |
| Anastomotic site | 1 (1.49) | 1 (2.33) | 0.000 | 1.000 |
| Endoscopic findings | ||||
| Erosion | 61 (91.04) | 39 (90.70) | 0.000 | 1.000 |
| Esophagitis | 18 (26.87) | 11 (25.58) | 0.022 | 0.881 |
| Obstruction | 7 (10.45) | 5 (11.63) | 0.000 | 1.000 |
| H. pylori positive | 38 (56.72) | 24 (55.81) | 0.009 | 0.926 |
- Citation: Hong WM, Du J. M-type dual-channel endoscopy with zebra guidewire lithotripsy for phytobezoars. World J Gastrointest Surg 2026; 18(9): 116919
- URL: https://www.wjgnet.com/1948-9366/full/v18/i9/116919.htm
- DOI: https://dx.doi.org/10.4240/wjgs.116919