Conflict of interestDP, TK and JW received unrestricted research grants from Echosens, Paris France and TK participated in a clinical advisory board meeting. MS was an Echosens scientific employee in the R&D department, but contributed in her role as scientist and author of papers in this meta-analysis. Echosens provided the FibroScan® device to Antoine-Béclère hospital, but the authors CSV, GP and SN did not receive funding from the manufacturers for carry out their research. VW served as a consultant and speaker for Echosens. No other authors have conflicts of interest.

Background: Endoscopic full thickness resection (EFTR) by the Full Thickness Resection Device (FTRD) has recently been introduced as a method to allow resection of certain lesions such as adenomatous polyps that would not be resectable by standard polypectomy techniques. We report our clinical experience with FTRD procedures, assessing technical success, completeness of resection (R0 status), rate of histologically proven FTR and safety. Patients and methods:We conducted a retrospective analysis of 33 consecutive patients with colonic polyps treated with FTRD from May 2015 to November 2016. Results: Indications mainly were adenoma recurrence or residual adenoma with nonlifting sign after previous polypectomy. In the 31 cases amenable to EFTR, resection was en bloc and histologically complete (R0) in 87.9% (29/33) of patients. Histologically confirmed complete full thickness resection (FTR) was achieved in 80.6% (25/31). Three post-procedure bleedings and one perforation were seen. Conclusion: FTRD offers an additional endoscopic approach to treat nonlifting colorectal lesions. EFTR by FTRD appears to be feasible and efficacious in the resection of benign neoplasms of up to 30 mm in diameter and may be an alternative to surgery in selected patients. Given a significant rate of complications, safety is a concern and needs to be assessed in larger prospective studies.

BACKGROUND AND AIMS: Accurate diagnosis and staging of non-alcoholic fatty liver disease are essential for the management of this disorder. Controlled attenuation parameter (CAP) has been suggested as a new noninvasive measurement made during transient elastography to assess liver steatosis. The aim of this study was to evaluate CAP as a diagnostic tool for identifying the presence and degree of hepatic steatosis in consecutive patients in an outpatient liver unit of a tertiary centre. METHODS: Between March 2015 and August 2016, all patients who underwent liver biopsy underwent liver stiffness measurement with simultaneous CAP determination using the FibroScan ® M or XL probe. Steatosis, inflammatory activity and fibrosis were assessed using the histological SAF scoring system. In addition, fibrosis was scored according to the METAVIR system, and body mass index (BMI) and the underlying liver disease were also recorded. RESULTS: 224 patients were included in the analysis; 146 (65.2%) were male. Steatosis grades were distributed as follows: S0 n = 85 (37.9%), S1 n = 82 (36.6%), S2 n = 33 (14.7%), S3 n = 24 (10.7%). Mean BMI was 26.8 kg/m 2 , for the S0 group 24.9 kg/m 2 , S1 26.5 kg/m 2 , S2 27.3 kg/ m 2 and S3 32.5 kg/m 2 . The CAP differed significantly between steatosis groups S0 to S3. The area under receiver operating characteristics curve for S0 vs S1-S3 was 0.78, for S0/1 vs S2/3 0.83 and for S0-2 vs S3 0.82. Calculated cut-off values were 258.5 dB/m for S0 vs S1-3, 282.5 dB/ m for S0/1 vs S2/3 and 307.5 dB/m for S0-2 vs S3.CONCLUSIONS: CAP values are strongly associated with the degree of steatosis irrespective of the underlying liver disease. Integrating CAP measurements in the standard work-up may identify patients with NAFLD.

SUMMARY BackgroundConstipation is a significant side effect of opioid therapy. We have previously demonstrated that naloxone-3-glucuronide (NX3G) antagonizes the motility-lowering-effect of morphine in the rat colon.

Bouveret’s syndrome is a rare complication resulting from gallstone disease. Both surgical and endoscopical procedures are performed, with the disease to be seen as strictly interdisciplinary. There are no well-established recommendations for this condition. In this paper, we want to describe our experience from 6 cases in 3 Swiss hospitals from 2015 to 2017 with emphasis on the endoscopic technique of electrohydraulic lithotripsy followed by balloon dilatation and propose a treatment algorithm.

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