Development of pure endoscopic full-thickness resection with mechanical countertraction and double-armed bar suturing systems

摘要

We performed a pure endoscopic full-thickness resection of a 40-mm gastric pseudotumor by using a mechanical countertraction system without insufflation, and we subsequently performed a full-thickness closure of the defect by using a double-armed bar suturing system (Video 1, available online at www.giejournal.org). Figure 1A shows an in vivo experiment on a dog. The end of the first arm of the suturing system was inserted 4 mm into one edge of the resection defect. The second arm (the puncture needle) was advanced forward (yellow arrow, Fig. IB) and penetrates the full thickness of the gastric mucosa.