Table 1 Patient characteristics
Characteristics | N = 211 |
|---|---|
Male sex, n (%) | 189 (89.6) |
Age (years), mean ± SD | 68.3 ± 9.5 |
ESD history, n (%) | 42 (19.9) |
CRT history, n (%) | 17 (10.5) |
Tumor size, mean ± SD | 37.7 ± 19.3 |
Location, n (%) | |
 Ce/Ut | 47 (22.2) |
 Mt | 101 (47.9) |
 Lt/Ae | 63 (29.9) |
Macroscopic type, n (%) | |
 0-Is | 7 (3.3) |
 0-IIa | 11 (5.2) |
 0-IIb | 16 (7.6) |
 0-IIc | 177 (83.9) |
Tumor depth (clinical diagnosis), n (%) | |
 cT1a-EP/LPM | 159 (75.4) |
 cT1a-MM/ cT1b-SM1 | 43 (20.4) |
 cT1b-SM2 | 9 (4.2) |
Tumor depth (pathological diagnosis), n (%) | |
 pT1a-EP | 56 (26.5) |
 pT1a-LPM | 85 (40.3) |
 pT1a-MM | 46 (40.3) |
 pT1b-SM1 | 12 (5.6) |
 pT1b-SM2 | 12 (5.6) |
 Presence of additional CRT after ESD, n (%) | 27 (12.8) |
 Total number of EBD procedures, median (range) | 8 (0–104) |
 Entire circumferential ESD, n (%) | 47 (22.3) |
 Muscle layer injury, n (%) | 16 (7.5) |
Prevention methods for ES | |
 TrA injection only | 89 (42.2) |
 TrA injection + oral PSL | 122 (57.8) |
 EBD with TrA injection, n (%) | 52a (46.4) |