Clinical Study
Prediction and Treatment of Difficult Cases in Colorectal Endoscopic Submucosal Dissection
Table 1
Clinical characteristics and outcomes of colorectal ESD.
| | Clinicopathological factors | |
| | Age, mean ± SD | | Sex ()
Male/female | 241 (59.1%)/177 (40.9%) | | Tumor size (mm), mean ± SD | | Tumor location (%)
Right-sided/left-sided/rectum | 48.8/19.7/31.5 | Morphology (%)
Superficial/protruding | 80.9/19.1 | | Degree of fibrosis (%) (n) | 53.1/37.4/9.5 | | F0/F1/F2 | (275/194/49) | | Experience of endoscopist (%) (n) | 34.6/65.4 | | Expert/nonexpert | (179/339) | | Procedure time (minutes), mean ± SD (range) | (15–420) | | Procedure speed (cm2/min), mean ± SD | | | En bloc resection (%) | 91.5 | | Histology Ad/M/SM, (%) (n) | 45.8/42.1/12.1
(235/216/62) | | Perforation (%) (n) | 3.8 (20) | | Postoperative hemorrhage (%) (n) | 2.3 (12) |
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Right-sided: cecum to transverse colon, left-sided: descending to sigmoid colon, F0: no fibrosis, F1: mild fibrosis, F2: severe fibrosis, Ad: adenoma, M: intramucosal cancer, and SM: submucosal invaded cancer.
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