Closure techniques in exposed endoscopic full-thickness resection: Overview and future perspectives in the endoscopic suturing era

Figure 1 Technical illustration of the exposed endoscopic full-thickness resection technique with defect closure by means of endoscopic suturing system. A: Endoscopic view of gastric submucosal lesion; B: Precutting and removal of the mucosal and submucosal layer after submucosal injection, in order to expose the tumor; C: Exposed endoscopic full-thickness resection of the tumor and creation of “active perforation”; D and E: Capnoperitoneum management using percutaneously inserted angiocatheter; F: Transmural defect closure with the OverStitch endoscopic suturing system; G: Final apposition of the tissue margins.