conclusions rtesd in the prone position is safe and presents a feasible alternative for management of large rectal tumors. we also anticipate the technique to further improve with the advancement of robotic technology. introduction endoscopic submucosal dissection (esd) of large tumors of the rectum is particularly challenging using colonoscopy or with laparoscopic instruments. more recently ro...

AIM The aim of this study is to compare the short-term clinical outcomes between endoscopic submucosal dissection and transanal local excision for rectal carcinoid tumors. METHODS Between 2007 and 2012, 31 patients with rectal carcinoid underwent endoscopic submucosal dissection at our hospital. They were compared with a matched cohort of 23 patients who underwent transanal local excision for...

a new endosurgical approach to the resection of giant rectal lesions Transanal surgical and advanced endoscopic resection procedures have the potential to provide complete and successful eradication of rectal lesions [1–3]. However, both approaches have limitations in terms of practicability and safety [3–5]. Transanal submucosal endoscopic resection (TASER) is a new endosurgical approach, whic...

Colorectal endoscopic submucosal dissection (ESD) is not yet fully popularized in Korea, but is increasing steadily. The outcomes of colorectal ESD in Korea are comparable to those in Japan and other countries. ESD-related complication rates are decreasing as experiences accumulate. Particularly for rectal laterally spreading tumors, ESD is becoming more prevalent than transanal endoscopic micr...

A 47-year-old woman underwent prophylactic subtotal colectomy with ileorectal anastomosis (IRA) for familial adenomatous polyposis (FAP) 18 years ago. She underwent 5 transanal endoscopic microsurgeries for rectal remnant polyps, and was referred for the treatment of rectal remnant polyp recurrence. Endoscopic submucosal dissection (ESD) was performed to remove multiple polypoid lesions that ci...

PURPOSE Gastric mucosal neoplastic lesions should have characteristic endoscopic features for successful endoscopic submucosal dissection. MATERIALS AND METHODS Out of the 1,010 endoscopic submucosal dissection, we enrolled 62 patients that had the procedure cancelled. Retrospectively, whether the reasons for cancelling the endoscopic submucosal dissection were consistent with the indications...

Endoscopic submucosal dissection (ESD), endoscopic mucosal resection (EMR), and transanal minimally invasive surgery (TAMIS) are modern techniques that now play a crucial role in the treatment of colorectal lesions. ESD is procedure allows for lesions any size single piece, with clear advantages regarding oncological outcomes recurrences. However, it complex technique, requiring high skills, ex...

has become possible to achieve en bloc and histologically complete resection of gastric tumors with endoscopic submu-cosal dissection (ESD), regardless of size, allowing for the re-section of tumors that would not have been previously possible. 1,2 However, ESD is a challenging technique with a higher complication rate than that of endoscopic mucosal resection. The main difficulty of ESD is the...

During ESD, the submucosal layer beneath the tumor was visually confirmed and dissected, and the tumor was completely resected and no adverse events were reported (Figure 2a and 2b). Figure 2: 2a: The submucosal layer beneath the tumor is dissected during endoscopic submucosal dissection, under direct vision. 2b: The submucosal layer beneath the tumor completely resected during endoscopic submu...