Research Article
Endoscopic Submucosal Single- or Multi-tunnel Dissection for Near-Circumferential and Circumferential Superficial Esophageal Neoplastic Lesions
Table 2
Endoscopic features of the lesions.
| | Operative time, mean (min) | (35-240) | | Dissection speed, mean (range) (mm2/min) | (7.1-73) | | En bloc resection (%) | 124 (100%) | | R0 resection | 87 (70.2%) | | R1 resection | 37 (29.8%) | | Positive resection margins () (%) | 53 (42.7%) | | Follow-up, mean (range) (mon) | (1-44) | | Additional esophagectomy () (%) | 11 (8.9%) | | Residual cancer | 1 | | Complications () (%) | | | Perforation | 1 (0.8%) | | Damaged of circular muscle | 60 (48.4%) | | Cardiac mucosal laceration | 7 (5.6%) | | Gastric fundus perforation patients | 2 (1.6%) | | Stenosis | 54 (43.5%) |
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