Patients

who underwent SLUB were identified in a prospect

Patients

who underwent SLUB were identified in a prospectively collected database. A standardized technique and protocol was applied. All patients underwent Ion Channel Ligand Library in vitro prior EUS by a 12 MHz catheter ultrasound probe. A 20mm mini-detachable loop was “prelooped” at the rim of an 18 mm diameter soft oblique transparent cap attachment. SLUB procedure: 1) Suction to draw the SET into the cap; 2) Ligation below the tumor, confirmed by repeat miniprobe EUS; 3) Unroofing of the overlying tissue with a needle knife; 5) Biopsies from the exposed tumor. The SLUB technique was attempted in 16 patients (2 males; median age 62) and successful in all. Location: 14 in stomach, 2 in colon. Median size by EUS: 10mm. Immunohistology: GIST- 4; leiomyoma-5; Carcinoid-3; Vanek’s tumor-2; Granuloma-1; Heterotopic fundic glands -1. Five patients (31%) had follow up with confirmation of tumor ablation by endoscopy and EUS. Complications: pain in 1; there was no bleeding or perforation. 1) Mini-loop ligation of small broad-based SETs is feasible; 2) Unroofing after ligation is safe and provides sufficient tissue for immunohistolochemistry; 3) Ligation combined with unroofing appears to lead to complete ablation by ischemia and tumor enucleation. A. Small broad-based subepithelial selleck products tumor in the gastric body. B. Mini-loop ligation using the 18mm transparent ‘EMR’ cap. C. Post-ligation unroofing with a needle knife. Biopsies showed a GIST. D. Scar at site of loop

ligation. No residual tumor seen on EUS. “
“Direct cholangioscopy offers diagnostic and therapeutic options beyond ERCP for complex biliary disease. Balloon-assisted cholangioscopy (BAC) is an exciting advance because of improved image quality and lower costs. Most studies however, have been in Asian subjects with bile ducts over 8mm. To assess feasibility of BAC in complex biliary disease in a multi-ethnic, largely non-Asian patient cohort tending to have smaller bile ducts. Either 4.9 or 5.5 mm endoscopes (Olympus

N180 or XP180) used. All subjects had a preceding sphincterotomy and/or balloon sphincteroplasty. Guidewire placement into the intrahepatic biliary tree was either by ERCP or under direct cholangioscopic vision. The balloon catheter was then advanced into the intrahepatic branches and inflated as an anchor triclocarban to allow cholangioscope passage. Visualisation was by saline irrigation with air for the initial 25 procedures and CO2 for the remaining 49. Biliary assessment was by white light and NBI, with targeted biopsies as required. Therapeutic procedures included APC and laser lithotripsy. Technical success was passage of the scope to the hilum or stricture. 57 patients (53 non-Asian) (25M, 32F) median age 69 (31-93) yrs underwent 74 procedures. Indications included assessment of indeterminate biliary strictures and masses, ampullary adenomas and difficult stone disease. Cholangioscopy was technically successful in 53 of 57 (93%) pts. Median procedure time was 30 (12-90) min and bile duct diameter 7 (2-20) mm.

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