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Background: The Enki-2 water jet system (Nestis SAS®, Lyon, France) with dual injection and dissection capability significantly reduced ESD procedure time and perforation rates in animal studies. The study aim was to evaluate its efficacy and safety in patients with superficial neoplastic lesions.Methods: A prospective study including 18 patients with esophageal, gastric and rectal superficial neoplasms treated by ESD using Enki-2 was designed.Results: Eighteen lesions (6 esophageal, 3 gastric, 9 rectal, mean diameter 43.5 mm) in 17 patients (10 men, mean age 65.9) were included. The mean procedure time was 65.6 min. One patient needed clipping for an incomplete muscle tear during procedure; there were neither delayed bleedings nor perforation. The "en bloc" resection rate was 100 %, the R0 resection rate was 88.9 % (16/18 lesions), and the curative resection rate was 77.8 %. The 3-month disease-free rate was 92.3 % (12/13 patients, 13/14 lesions, 1 patient lost to follow-up). The 12-month disease-free rate was 69.2 % (9/13 patients, 10/14 lesions, 4 patients lost to follow-up).Conclusions: ESD with Enki-2 water jet system is effective and safe for superficial neoplastic digestive lesions. [ABSTRACT FROM AUTHOR]

Clinical manifestations of hepatitis B virus (HBV) infection are ranged from fulminant hepatitis to decompensated cirrhosis or hepatocellular carcinoma. Liver transplantation (LT) is one therapeutic option of these HBV infection complications. Intrahepatic viral persistence and low levels of circulating viral particles despite treatment optimization may lead to HBV recurrence after LT, which jeopardizes graft and patients survival after LT. HBV recurrence prophylactic strategies are based on nucleos(t)ides analogues (NUCs) treatment to block viral replication and anti-HBs immunoglobulin administration to neutralize circulating viral particles. The risk of HBV recurrence is also important in case of transplantation with a graft from a donor with a history of HBV infection (HBc+) to a "HBV naive" recipient or in case of immunosuppressive therapy after solid organ or hematopoietic stem cell transplantation for a HBc+ recipient. Prophylactic strategies are mainly focused on biological monitoring and NUCs therapy for high-risk situations.