TABLE 1.
All | C‐ESD | P‐ESD | ||
---|---|---|---|---|
n = 70 | n = 35 | n = 35 | p‐value | |
Tumor location | 0.81 | |||
Upper or Middle | 37 (53) | 18 (51) | 19 (54) | |
Lower | 33 (47) | 17 (49) | 16 (46) | |
Tumor position | 1 | |||
L or A or P | 40 (57) | 20 (57) | 20 (57) | |
G | 30 (43) | 15 (43) | 15 (43) | |
Estimated long axis diameter, mm | 35 (35–40) | 35 (32–40) | 35 (35–40) | 0.42 |
Estimated short axis diameter, mm | 30 (25–35) | 30 (25–32) | 30 (25–35) | 0.76 |
Estimated size (mm2) | 824.3 (628–961.6) | 824.3 (686.9–942) | 824.3 (628–961.6) | 0.73 |
Operator skill | 0.81 | |||
0–49 cases of ESD | 39 (56) | 20 (57) | 19 (54) | |
≥50 cases of ESD | 31 (44) | 15 (43) | 16 (46) |
Values are presented as median (interquartile range) or number (frequency [%])
Abbreviations: A, anterior wall; C‐ESD, conventional ESD; ESD, endoscopic submucosal dissection; G, greater curvature; L, lessor curvature; P, posterior wall; P‐ESD, ProKnife injection ESD.