Table 3.
ESD procedure outcomes (trainee endoscopist): multi-loop traction device-assisted ESD versus conventional ESD (n = 12) in the ex vivo pilot study
| M-ESD (n = 6) | C-ESD (n = 6) | p value | |
|---|---|---|---|
| Rate of en bloc resection (%) | 100 (6/6) | 100 (6/6) | – |
| Rate of R0 resection (%) | 100 (6/6) | 100 (6/6) | – |
| Rate of accidental complications (perforation) during ESD (%) | 0 (0–6) | 0 (0–6) | – |
| Overall procedure time (min); median (IQR) | 43.0 (35.5–62.5) | 50.5 (43.3–54) | 1.00 |
| Local injection time (min); median (IQR) | 5 (4.3–8) | 8.5 (7.3–9) | 0.52 |
| Perimeter incision time (min); median (IQR) | 17 (12.3–19.5) | 7.0 (5.3–13.3) | 0.13 |
| MLTD attachment time (min); median (IQR) | 3.0 (2.3–3) | – | – |
| Submucosal dissection time (min); median (IQR) | 12.5 (9.3–21) | 28.0 (25.3–31.5) | 0.08 |
| MLTD extraction time (min); median (IQR) | 1.0 (1–1.75) | – | – |
| Total local injection volume (mL); median (IQR) | 31.0 (21.8–38.8) | 36.5 (24–47.5) | 0.57 |
| Specimen area (mm2); median (IQR) | 854.1 (714.4–1158.1) | 637.8 (598.6–880.8) | 0.23 |
| Number of additional local injections; median (IQR) | 0 (0–0.75) | 0 (0–0.75) | 0.92 |
ESD, Endoscopic submucosal dissection; MLTD, multi-loop traction device; IQR, interquartile range; C-ESD, conventional ESD; M-ESD, Multi-loop traction device-assisted ESD