Table 2 ESD procedure outcomes (expert 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) | 17.0 (13.3–18.5) | 22.5 (14.5–29) | 0.20 |
Local injection time (min); median (IQR) | 3 (2.3–3) | 3 (2.3–3) | 1 |
Perimeter incision time (min); median (IQR) | 3.5 (2.3–5.5) | 4.5 (3–6) | 0.68 |
MLTD attachment time (min); median (IQR) | 2.0 (1.3–2.8) | – | – |
Submucosal dissection time (min); median (IQR) | 3 (2.3–6) | 12.5 (8.3–17.5) | < 0.05 |
MLTD extraction time (min); median (IQR) | 1.0 (1–1) | – | – |
Total local injection volume (mL); median (IQR) | 17.5 (11.3–23.8) | 21.5 (14–24.5) | 0.47 |
Specimen area (mm2); median (IQR) | 706.5 (471–942) | 647.6 (458.0–812.5) | 0.42 |
Number of additional local injections; median (IQR) | 0 (0–0) | 0 (0–0) | 0.32 |