During ESD, the strength and the direction of traction were changed to get the efficient traction and the optimal dissection selleck chemical plane by pushing, pulling, rotating and bending the steerable grasper.

A total of 28 ESDs were performed in 8 pigs (14 ESDs in each group). Mean specimen size was 1320.0 ± 207.8 vs. 1251.8 ± 183.3mm2 (p=ns), mean total procedure time was 63.9 ± 10.0 vs. 42.8 ± 7.8 min (p=0.021), and mean dissection speed was 22.0 ± 6.0 vs. 39.7 ± 12.4mm2/min (p=0.031) in the C-ESD and SG-ESD group respectively. Perforation rate of C-ESD group was 28.6% (4/14) whereas no perforation occurred in SG-ESD group. All perforations in the C-ESD group occurred at proximal sites such as 34 and 40cm. In conclusion, controllable traction ensured faster and safer colonic ESD in the porcine model. We expect this method could reduce the technical difficulty of colonic ESD in humans, and that it could well be helpful to novice and intermediate level endoscopists, and even experts on certain occasions. “
“Through injection of bulking agents, radiofrequency and variations of fundoplication, multiple endoscopic approaches

to the therapy of GERD have focused on increasing cardia/lower esophageal sphincter narrowing. Dysphagia following band ligation, secondary to scar formation, is not uncommon in both variceal band ligation and endoscopic mucosal resection. The therapeutic impact of targeted band ligation with/without mucosectomy on GERD patients was evaluated up to 12 months of follow up. Patients with documented PPI responsive GERD Venetoclax cell line with an abnormal pH study underwent targeted band ligation with/without mucosectomy. Band ligation was performed in all four Chorioepithelioma quadrants not more than 5 mm distal to the Z-line and in 3 or 4 quadrants not more than 5 mm proximal

to the Z-line. Patient were randomized by sealed envelope to band ligation vs. band ligation with mucosectomy and blinded to the therapy performed. Six months after the procedure, all patients completed a medication history, GERD-HQRL questionnaire and underwent repeat pH testing. With the exception of repeat pH testing, this data was compiled at 12 months as well. 10 patients participated in the trial, half of whom underwent band ligation with mucosectomy. No procedural complications occurred. All patients had complete 6 month data and 7/10 patients have complete 12 month data. All patients are expected to have complete 12 month data by May, 2013. Three patients reported de novo dysphagia, one required dilation. Mean HQRL scores (off medications) improved from 26.6 to 9 at 6 months and 6.9 at 12 months, with 60% and 71% of scores normalizing at those respective time points. Improvement was noted in the band-ligation with mucosectomy group, with mean HQRL scores improving from 26.2 to 7.4 at 6 months and 7.5 at 12 months with band-ligation alone, with mean HQRL scores improving from 27 to 10.6 at 6 months and 6 at 12 months (See Figure 1).