Table 2.
Comparison of current study results with the literature
| Author references | Uraoka et al. [6] | Ahn et al. [5] | Higuchi et al. [15] | Ogata et al. [16] | Colak et al. [17] | Sohda et al. [18] | Current study |
|---|---|---|---|---|---|---|---|
| Country | Japan | Korea | Japan | Japan | Turkey | Japan | Germany |
| Study design | Prospective, single-center | RCT, single center | Retrospective, single center | Prospective, single-center | Retrospective, single-center | Retrospective, single-center | Prospective, single-center |
| Time period | 04/2006–10/2008 | 06/2010–08/2011 | 10/2008–05/2012 | 1999–2015 | 01/2014–04/2018 | 01/2010–06/2016 | 02–07/ 2019 |
| Pts enrolled, (total/intervention/no—intervention, n) | 37/21/16 | 51/25/26 | 57/30/27 | 122/122/0 | 22/22/0 | 111/51/60 | 9/9/0 |
| Endoscopist expertise level | 1 expert | 2 nonexperts | Experts | NA | NA | Experts | 2 experts |
| ESD location, n | Rectum: 14, Sigmoid: 7 | Stomach, 51 | Stomach, 30 | Stomach, 122 | Stomach, 22 | Esophagus, 111 | Rectum 5, Sigmoid 4 |
| Tumor size (mean ± SD; mm) | 43.6 ± 16 | 20.5 ± 7.9 | 20 median (range 2–42) | 1.8 median (range 0.2–4.2) | NA | 32.3 ± 11.2 | 52.1 ± 12.2 |
| SMSA Score (median, range) | NA | NA | NA | NA | NA | NA | 14 (12—16) |
| Pretreated (EMR), n (%) | NA | NA | NA | NA | NA | NA | 3 (33.3) |
| En bloc resection, n (%) | 21 (100) | 26 (100) | 30 (100) | 119 (97.5) | NA | 46 (90.0) | 9 (100) |
| Procedure time (mean ± SD; minutes) | 96 ± 53 | 29.2 ± 12.6 | 80 (range 35–201 min) | 70.9 (range 20–207 min) | 54 (range 45–75 min) | 114 ± 54.5 | 128.4 ± 54.1 |
| Complications, n (%) | 0 (0.0) | 2 (7.7) | 9 (30) | 7 (6.0) | NA | 1 (1.96) | 0 (0.0) |
| Recurrence, n (%) | NA | NA | NA | 2 (1.6) | NA | NA | 0 (0.0) |
RCT randomized control trial, Pts patients, ESD endoscopic submucosal dissection, SMSA site, morphology, size, access scoring system, EMR endoscopic mucosal resection, NA not available