Short- and long-term outcomes of endoscopically treated superficial non-ampullary duodenal epithelial tumors

Table 5 Short-term outcomes and adverse events (endoscopic mucosal resection vs endoscopic submucosal dissection)

Outcome			EMR, n = 136	ESD, n = 11	P-value
Tumor diameter, median (IQR)			9 (7-14.5)	20 (15-33)	< 0.001
Macroscopic type; 0-I or 0-IIa/0-IIc			81 (60)/55 (40)	10 (91)/1 (9)	NS
En bloc resection			121 (89)	11 (100)	NS
R0 resection			93 (68)	8 (73)	NS
Success rate of defect closure			132 (97)	7 (64)	< 0.001
Adverse events			0	5 (45)	< 0.001
	Perforation
		Intraoperative	0	3 (27)1	< 0.001
		Delayed	0	2 (18)2	0.004
	Delayed bleeding		0	1 (9)2	NS

Data are presented as n (%).

¹One required surgery, two recovered with conservative treatment.

²Recovered with conservative treatment.

EMR: Endoscopic mucosal resection; ESD: Endoscopic submucosal dissection; NS: Not significant; IQR: Interquartile range.