Bilateral and unilateral stenting for malignant hilar obstruction: a systematic review and meta-analysis.

Background: Stents are used for palliating inoperable malignant bile duct hilar obstruction. It is not clear if bilateral stenting provides any advantage over unilateral stenting in these patients. Compare bilateral and unilateral stenting in malignant hilar obstruction.

Endoscopic transmural necrosectomy for walled-off pancreatic necrosis: a systematic review and meta-analysis.

Background: Endoscopic transmural necrosectomy (ETN) is emerging as a viable treatment option for walled-off pancreatic necrosis. This NOTES-type procedure is significantly less invasive than an extensive surgical debridement; however, published data regarding the success of ETN in treating pancreatic necrosis have varied.

Objective: To evaluate the published medical literature to determine the success of treating walled-off pancreatic necrosis with ETN.

Diagnostic accuracy of endoscopic ultrasound in pancreatic neuroendocrine tumors: a systematic review and meta analysis.

Aim: To detect pancreatic neuroendocrine tumors (PNETs) has been varied. This study is undertaken to evaluate the accuracy of endoscopic ultrasound (EUS) in detecting PNETs.

Methods: Only EUS studies confirmed by surgery or appropriate follow-up were selected.