Feasibility and efficacy of endoscopic purse-string suture-assisted closure for mucosal defects induced by endoscopic manipulations

Figure 1 Schematic figure of the pre-endoscopic purse-string assisted suturing procedure. A: Mucosa marking step: Dots were marked around the tumor; B: Expose the lesion; C: Pre-endoscopic purse-string assisted suturing by using an endoloop and a metal clip; D and E: Intraoperative perforation in exposed endoscopic full-thickness resection; F-I: Immediate closure of the perforation by tightening endoloop.