Learning curve of colorectal endoscopic submucosal dissection of an endoscopist experienced hands-on training in Japan.

Background And Aim: Colorectal endoscopic submucosal dissection is a technically demanding procedure with a steep learning curve. In Japan, the National Cancer Center Hospital allows overseas doctors to participate in hands-on training. We aimed to assess the colorectal endoscopic submucosal dissection performance and learning curve of an endoscopist who participated in hands-on training.

Endoscopic submucosal dissection of colon polyps with submucosal fibrosis using the combination of near-focus mode and traction device.

Video 1Endoscopic submucosal dissection of colon polyps with submucosal fibrosis using the combination of near-focus mode and a traction device.

Texture and color enhancement imaging (TXI) plus endocuff vision versus TXI alone for colorectal adenoma detection: a randomized controlled trial.

Background And Aims: Increasing the adenoma detection rate (ADR) helps reduce the risk of post-colonoscopy colorectal cancer. Texture and Color Enhancement Imaging (TXI) improves ADR by enhancing the brightness and contrast of endoscopic images. Endocuff Vision (ECV) is a mucosal exposure device that helps flatten the colonic folds.

Difficult colorectal polypectomy: Technical tips and recent advances.

Colonoscopy has been shown to be an effective modality to prevent colorectal cancer (CRC) development. CRC reduction is achieved by detecting and removing adenomas, which are precursors of CRC. Most colorectal polyps are small and do not pose a significant challenge for trained and skilled endoscopists.

Oncologic safety of colonic stenting as a bridge to surgery in left-sided malignant colonic obstruction: Current evidence and prospects.

Approximately 7%-29% of patients with colorectal cancer present with colonic obstruction. The concept of self-expandable metal stent (SEMS) insertion as a bridge to surgery (BTS) is appealing. However, concerns on colonic stenting possibly impairing oncologic outcomes have been raised.

Comparison of colonic stenting and stoma creation as palliative treatment for incurable malignant colonic obstruction.

Background And Aim: Self-expandable metal stent (SEMS) is a favorable therapeutic option for patients with incurable malignant colonic obstruction (MCO). However, their long-term efficacy and safety compared with those of stoma creation have not been well investigated. This study aimed to compare these long-term outcomes between these two techniques in patients with incurable MCO.

Endoscopic submucosal dissection of a symptomatic giant colonic lipoma: technical tips for resection and specimen retrieval.

Video 1Endoscopic submucosal dissection of a giant colonic lipoma.

Efficacy of international web-based educational intervention in the detection of high-risk flat and depressed colorectal lesions higher (CATCH project) with a video: Randomized trial.

Objectives: Three subcategories of high-risk flat and depressed lesions (FDLs), laterally spreading tumors non-granular type (LST-NG), depressed lesions, and large sessile serrated lesions (SSLs), are highly attributable to post-colonoscopy colorectal cancer (CRC). Efficient and organized educational programs on detecting high-risk FDLs are lacking. We aimed to explore whether a web-based educational intervention with training on FIND clues (fold deformation, intensive stool/mucus attachment, no vessel visibility, and demarcated reddish area) may improve the ability to detect high-risk FDLs.

Rectal irrigation as rescue therapy for refractory and severe hemorrhagic radiation proctitis: A case report.

Rectal irrigation may be considered in refractory and severe hematochezia from chronic radiation proctitis before performing other invasive treatments. It prevents superimposed infection and effectively reduces bleeding.

Comparison of long-term outcomes of colonic stenting as a "bridge to surgery" and emergency surgery in patients with left-sided malignant colonic obstruction.

Purpose: Long-term oncologic outcomes of colonic stenting as a "bridge to surgery" in patients with left-sided malignant colonic obstruction (LMCO) are unclear. This study was performed to compare long-term outcomes of self-expandable metal stent (SEMS) insertion as a bridge to surgery and emergency surgery in patients with acute LMCO.

Methods: This retrospective cohort study included patients with acute LMCO who underwent SEMS insertion as a bridge to surgery or emergency surgery.

Recurrence after endoscopic resection of small rectal neuroendocrine tumors: a retrospective cohort study.

Purpose: According to the European Neuroendocrine Tumor Society consensus guidelines, rectal neuroendocrine tumors (NETs) up to 10 mm in size and without poor prognostic factors could be safely removed with endoscopic resection, suggesting omitting surveillance colonoscopy after complete resection. However, the benefit of surveillance colonoscopy is still unknown. In this study, we aimed to report the outcomes after endoscopic resection of small rectal NETs using our surveillance protocol.

Underwater endoscopic mucosal resection of a rectal adenoma in the nondistensible rectum from severe fecal incontinence.

Video 1Underwater endoscopic mucosal resection of a rectal adenoma in nondistensible rectum from severe fecal incontinence.

Standards of diagnostic colonoscopy for early-stage neoplasia: Recommendations by an Asian private group.

Background And Aim: In recent years, the incidence of colorectal cancer has been increasing, and it is now becoming the major cause of cancer death in Asian countries. The aim of the present study was to develop Asian expert-based consensus to standardize the preparation, detection and characterization for the diagnosis of early-stage colorectal neoplasia.

Methods: A professional group was formed by 36 experts of the Asian Novel Bio-Imaging and Intervention Group (ANBI G) members.

Ligation of Intersphincteric Fistula Tract for Fistula in Ano: Lessons Learned From a Decade of Experience.

Background: Ligation of intersphincteric fistula tract is a well-described sphincter-preserving technique for the management of fistula in ano. In 2007, we reported our early experience demonstrating a primary success rate of 94.4%.

Endoscopic diagnosis of colorectal serrated lesions: Current status and future perspectives based on the results of a questionnaire survey.

Serrated lesions, especially sessile serrated adenoma/polyps (SSA/P) are considered one of the most important precursors of colorectal cancers. However, it is still difficult to endoscopically differentiate SSA/P from hyperplastic polyps. In the present review, we mainly focus on the current status and future perspectives of endoscopic diagnosis of colorectal serrated lesions based on the results of a questionnaire survey and report from the Endoscopic Forum Japan (EFJ) 2015 held in Tokyo in August 2015.

Forward-viewing radial-array echoendoscope for staging of colon cancer beyond the rectum.

Aim: To evaluate feasibility of the novel forward-viewing radial-array echoendoscope for staging of colon cancer beyond rectum as the first series.

Methods: A retrospective study with prospectively entered database. From March 2012 to February 2013, a total of 21 patients (11 men) (mean age 64.

Marsupialization for simple fistula in ano: a randomized controlled trial.

Background: Marsupialization of anal fistulotomy results in less raw-surface wound and may improve postoperative outcomes. The present study was designed to test the benefit of marsupialization for simple fistula in ano.

Material And Method: This was a randomized controlled study conducted at King Chulalongkorn Memorial Hospital, Bangkok, Thailand.