Efficacy and Safety Analysis of Submucosal Tunnel Endoscopic Resection for Submucosal Masses in Esophageal Muscularis Propria

Table 4

Safety analysis of STER in the treatment of submucosal masses in esophageal muscularis propria [cases (%)].

Groups	Cases	Delayed bleeding	Adhesion	Perforation	Pleural effusion	Total cases
The STER group	136	1 (0.74)	3 (2.21)	1 (0.74)	1 (0.74)	6 (4.41)
The ESD group	136	5 (3.68)	7 (5.15)	3 (2.21)	4 (2.94)	19 (13.97)
		2.727	1.661	1.015	1.834	7.444
		0.099	0.197	0.314	0.176	0.006