| ESD-S (n = 14) | ESD-N (n = 14) | P value |
---|---|---|---|
Tumor location (n) | Â | Â | Â |
 Upper/middle/lower | 1/7/6 | 1/8/5 | 0.16 |
 Anterior wall/posterior wall/lesser curvature/greater curvature | 5/1/1/7 | 4/2/2/6 | 0.18 |
 Specimen size, mm (range) | 24.0 (18–41) | 26.0 (12–42) | 0.96 |
Median procedure time, min (range) | |||
 Total | 16.5 (10–31) | 22.3 (10–38) | 0.02 |
 Mucosal incision | 10.0 (6–16) | 17.0 (5–31) | 0.02 |
 Submucosal dissection | 5.0 (1.5–10) | 5.5 (3–17) | 0.68 |
 Self-completion, % | 13 (92.9%) | 9 (64.3%) | 0.16 |
 En-bloc resection, % | 14 (100%) | 14 (100%) | 0.25 |
 Complication, % | 0 (0%) | 2 (14.3%) | 0.25 |
 Perforation, % | 0 (0%) | 0 (0%) | 1.0 |
 Muscularis layer injury, % | 0 (0%) | 2 (14.3%) | 0.25 |