Feasibility and Safety of Mark-Guided Submucosal Tunneling Endoscopic Resection for Treatment of Esophageal Submucosal Tumors Originating from the Muscularis Propria: A Single-Center Retrospective Study

Table 2

The feasibility and safety of the mark-guided STER.

Outcomes
Complete resection (n, %)	242 (100%)
En bloc resection (n, %)	238 (98.3%)
R0 resection (n, %)	236 (97.5%)
Procedure duration (min)	55 (35–135)
Main complication (n, %)	12 (4.5%)
Intraprocedure bleeding (n, %)	5 (2.1%)
Pulmonary infection (n, %)	2(0.8%)
Severe chest pain (n, %)	4 (1.7%)
Intraprocedure perforation (n, %)	1 (0.4%)
Postprocedure bleeding (n, %)	0
Pleural fistula (n, %)	0
Esophageal-pleural effusion (n, %)	0
Postprocedure perforation (n, %)	0
Follow-up (months)	17 (3–30)
Residual (n, %)	0
Recurrence (n, %)	0