Endoscopic treatments for small gastric subepithelial tumors originating from muscularis propria layer

Table 1 Clinical outcomes of endoscopic muscularis excavation for gastric subepithelial tumors originating from the muscularis propria layer

Ref.	No. cases (tumors)	Location (details)	Mean tumor size (mm)	Pathology	Complete resection rate, n (%)	Mean operating time (min) and range(min)	Complications (details)	Mean follow-up time (mo) and recurrence
Jeong et al[19]	64 (65)	23 cardia	13.8	26 GISTs	60 (92.3)	34.7	8 perforations	10.0
		8 fundus		32 leiomyomas				No recurrence
		30 body		2 schwannomas
		4 antrum		3 others
Chu et al[21]	16 (16)	1 cardia	26.1	14 GIST	15 (93.8)	52.0	0	14.8
		3 fundus		2 leiomyoma				No recurrence
		9 body
		3 antrum
Liu et al[20]	31 (31)	14 esophagus	22.1	16 GISTs	30 (96.8)	76.8	4 perforations	17.7
		7 cardia		15 leiomyomas				No recurrence
		5 fundus
		5 body
Zhang et al[18]	212 (212)	93 fundus	16.5	97 GISTs	204 (96.2)	46.1	32 perforations	26.0
		104 body		115 leiomyomas			9 massive bleeding	No recurrence
		15 antrum

GISTs: Gastrointestinal stromal tumors.