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With the extensive use of gastrointestinal endoscopy and endoscopic ultrasonography (EUS), the diagnosis rate of gastric submucosal tumors (SMTs) has increased. While most SMTs are thought to be benign, up to 13% have malignant potential, especially those originating in the muscularis propria layer 1. With the advance of endoscopic technology, endoscopic treatment for SMTs has proven to be an effective, safe, economical, and most importantly, minimally invasive method for both accurate histopathological evaluation and curative treatment. With advances in endoscopic techniques, exposed endoscopic full-thickness resection (EFTR) has been demonstrated to be an effective and minimally invasive method for gastric SMTs originating from the deep muscularis propria layer or those with extraluminal growth tumor 2. It is however a time-consuming procedure and not easy to perform, particularly for some lesions >2.0 cm. We here report a modified exposed EFTR technique, in which we performed EFTR assisted by double floss traction (Video 1).
Song et al. (Thu,) studied this question.