Table 5.
Clinical outcomes of gastric ESD using Multi-loop traction device in Clinical feasibility evaluation
| The M-ESD (10 patients 11 lesions) | |
| Year (y); median (range) | 74 (66–87) |
| Gender (male: female) | 9:1 |
| Location (U/M/L) | 5/5/1 |
| Lesion position (Greater curvature/Lesser curvature/Anterior wall/Posterior wall) | 4/1/2/4 |
| Morphology (Depressed/Flat/Protruded) | 5/0/6 |
| Lesion size (mm) (longer axis); median (IQR) | 12.0 (10.0–27.5) |
| Lesion size (mm) (shorter axis); median (IQR) | 10.0 (8.0–24.0) |
| Submucosal dissection speed (mm2/min); median (IQR) | 37.2 (29.7–59.8) |
| Rate of en bloc resection (%) | 100 (11/11) |
| Rate of R0 resection (%) | 100 (11/11) |
| Rate of accidental complications (perforation) during ESD (%) | 0 (0/11) |
| Overall procedure time (min); median (IQR) | 38.0 (27.0–63.5) |
| MLTD attachment time (min); median (IQR) | 2 (1–2) |
| MLTD retrieving time (min); median (IQR) | 1 (0–1) |
| Total local injection volume (mL); median (IQR) | 21.5 (16.5–43.5) |
| Specimen area (mm2); median (IQR) | 706.5 (580.1–1420.1) |
| Presence of ulceration (%) | 18.2 (2/11) |
| successful MLTD attachment rate (number of successful MLTD attachment/number of attempts for MLTD attachment) (%) | 91.7 (11/12) |
| Finally successful MLTD attachment rate (%) | 100 (11/11) |
| Rate of MLTD retrieval (%) | 100 (11/11) |
| MLTD attachment time (min); median (IQR) | 2 (1–2) |
| MLTD extraction time (min); median (IQR) | 1 (0–1) |
ESD, Endoscopic submucosal dissection; M-ESD, Multi-loop traction device-assisted ESD; IQR, interquartile range; MLTD, multi-loop traction device