The influence on immunologic parameters during NOTES in a porcine survival model.

Objective: To analyze the effect of natural orifice transluminal endoscopic surgery (NOTES) on the survival of animals, by comparing the change of intraoperative and postoperative immunologic parameters of NOTES with laparoscopy.

Materials And Methods: Twenty pigs were randomized to treatment with NOTES or standard laparoscopy. Each group underwent diagnostic peritoneoscopy by laparoscopy or NOTES in 90 minutes.

Minimally invasive phasic treatment protocol for the treatment of extrahepatic bile duct stones.

Objectives: To identify the optimal treatment for extrahepatic bile duct stones using endoscopy, laparoscopy, and the combination of the two in different conditions and to develop phasic treatment protocols for their minimally invasive treatment.

Patients And Methods: Of 2718 cases of extrahepatic bile duct stones collected from June 2005 to December 2011, 50 were randomly selected to receive open bile duct exploration and T-tube drainage, serving as the control group. For the rest, a one-scope protocol, two-scope protocol (two-scope protocol A or two-scope protocol B), or three-scope protocol was adopted according to the specific conditions of stones and the endoscopic treatment results.

The safety and utility of pancreatic duct stents in the emergency ERCP of acute biliary pancreatitis but difficult sphincterotomy.

Background/aims: The aims of this study were to assess the feasibility and safety of emergency ERCP and pancreatic duct (PD) stenting in acute biliary pancreatitis (ABP) patients in whom biliary endoscopic sphincterotomy proved difficult, and to compare the clinical outcome of those patients having emergency ERCP without pancreatic stent.

Methodology: One hundred and ninety-one consecutive patients with ABP were included in this study. Patients were randomly assigned to either the stent group (n=78) or the no-stent group (n=113).

Systemic stress responses after laparoendoscopic single-site hepatectomy: a perspective controlled study.

Background/aims: This study aimed to evaluate the technical feasibility of laparoendoscopic single-site hepatectomy (LESH) and compared stress responses with laparoscopic hepatectomy (LH) through a perspective controlled trial.

Methodology: Thirty small female family pigs as animal models were divided into LESH and LH groups randomly. The data about operations including operating time, blood loss and complication rates were recorded.