Endoscopic mucosal resection vs endoscopic submucosal dissection for superficial non-ampullary duodenal tumors

Table 3 Comparison of treatment outcomes between the endoscopic mucosal resection and endoscopic submucosal dissection groups after propensity score matching

	EMR group, n = 28	ESD group, n = 28	P value
Procedure time, min
Median (IQR)	6 (3-10.75)	87.5 (68.5-136.5)	< 0.001
En bloc resection, n (%)	23 (82.1)	26 (92.9)	0.42
Complete resection, n (%)	20 (71.4)	25 (89.3)	0.18
Closure of mucosal defects, n (%)	24 (85.7)	27 (96.4)	0.35
Adverse events, n (%)	1 (3.6)	5 (17.9)	0.19
Intraoperative perforation, n (%)	0 (0)	3 (10.7)	0.24
Delayed perforation, n (%)	0 (0)	1 (3.6)	1
Delayed bleeding, n (%)	1 (3.6)	0 (0)	1
Emergency surgery, n (%)	0 (0)	1 (3.6)	1
Hospital stay, d
Median (IQR)	8 (6-10.75)	11 (8.25-14.75)	0.006
Follow-up duration, mo	23 (11-35.5)	24 (9.75-57.5)	0.831
Median (IQR)
One-year follow-up, n (%)	21 (75)	20 (71.4)	1
Local recurrence, n (%)	1 (3.6)	0 (0)	1
Metastatic recurrence, n (%)	0 (0)	0 (0)	-

P values were calculated using Fisher’s exact test for categorical data and Mann-Whitney U test for continuous data. EMR: Endoscopic mucosal resection; ESD: Endoscopic submucosal dissection; IQR: Interquartile range.