Second-look endoscopy and factors associated with delayed bleeding after endoscopic submucosal dissection

Table 1 Influence of second-look endoscopy on the incidence of bleeding following endoscopic submucosal dissection

Ref.	Year	n	Study design	Bleeding:SLE vs no SLE (%)	Risk factors for delayed bleeding	SLE benefit
Ryu et al[17]	2013	182	Prospective, single center	16.2% vs 11.1%	No risk factors	No
Mochizuki et al[8]	2014	262	Prospective, Multicenter center	5.4% vs 3.8%	Resected specimen size > 40 mm	No
Kim et al[16]	2014	437	Prospective, single center	3.6% vs 2.8%	Large tumor size (> 20 mm)	No
Park et al[14]	2015	445	Retrospective	3.0% vs 2.0%	Tumor in the upper-third of the stomach, resected specimen size > 40 mm	No
Kim et al[15]	2015	502	Retrospective	1.0% vs 2.5%	Large tumor size (> 15 mm)	No

SLE: Second-look endoscopy.