Outcome parameters and characteristics of endoscopic treatment
| SRER (n=25) | ER + RFA (n=22) | p Value | |
| CR-neoplasia | 25/25 (100%) | 21/22 (96%) | 0.47 |
| (95% CI 86% to 100%) | (95% CI 77% to 100%) | (95% CI of 4%: −4% to 13%) | |
| CR-IM | 23/25 (92%) | 21/22 (96%) | 1.00 |
| (95% CI 74% to 99%) | (95% CI 77% to 100%) | (95% CI of 4%: −2% to 10%) | |
| Severe complications | 6 (1 acute perforation, 5 stenoses) | 0 | 0.02 |
| Moderate complications | 18 (1 early bleeding, 17 stenoses) | 4 (1 late bleeding, 3 stenoses) | 0.00 |
| Mild complications | 5 (5 acute bleedings) | 3 (2 acute bleedings, 1 acute non-transmural laceration) | 0.71 |
| Sessions SRER/ER + RFA (median) | 2 (IQR 1–3) | 3 (IQR 3–4) | 0.07 |
| Escape treatment | 8/25 (32%) | 4/21 (19%) | 0.50 |
| Dilation sessions (median) (range) | 4 (1–19) | 3 (1–4) | 0.39 |
| Total no. of therapeutic sessions (median) | 6 (range 1–20, IQR 3–9) | 3 (range 1–8, IQR 3–4) | 0.00 |
CR, complete response; ER, endoscopic resection; IM, intestinal metaplasia; RFA, radiofrequency ablation; SRER, stepwise radical endoscopic resection.