Steroid injection | Steroid injection | |||
---|---|---|---|---|
(−) | (+) | |||
Immediately after | 1 week after | 3 weeks after | 8 weeks after | |
ESD | ESD | ESD | ESD | |
(n=5) | (n=7) | (n=2) | (n=5) | |
Ulcer size evaluated as distance between desmin-positive muscularis mucosa edges (cm, mean±SD) | 1.38±0.22 | 1.54±0.23 | 0.80±0.14 | 0.78±0.11 |
Largest thickness of SMA-positive myofibroblastic cell bundles (μm, mean±SD) | 0* | 297±70.5 | 1,156±283 | 341±216 |
Thickness of proper muscle layer (μm, mean±SD) | 1,231±112 | 1,444±123 | 584±218 | NA** |