Publications by authors named "Ren-Pei Wu"

Background: There is huge shortage of ERCP practitioners (ERCPists) in China, and ERCP training is urgently needed. ChangHai Advanced eNdoscopy Courses for ERCP (CHANCE) is a 4-month program for ERCP training since 2004. This study evaluated the efficiency of this short-term training model, and reported on the ERCP careers of the trainees following completion of the CHANCE program.

View Article and Find Full Text PDF

Acetylcholinesterase (AChE) plays a key role in catalytic hydrolysis of cholinergic neurotransmitters. Intensive research has proven the involvement of this protein in novel functions, such as cell adhesion, differentiation, and proliferation. In addition, several recent studies have indicated that acetylcholinesterase is potentially a marker and regulator of apoptosis.

View Article and Find Full Text PDF

Background: The purpose of this article was to investigate bacterial biofilm formed on endoscopes and to explore the possible correlation between endoscope reprocessing procedures and bacterial biofilm growth on endoscope channels.

Methods: Sixty-six endoscope suction and biopsy channels and 13 water and air channels were collected from 66 hospitals throughout China. Scanning electron microscopy was used to observe biofilm growth on the internal surface of these channels.

View Article and Find Full Text PDF

Background/aims: The optimal training mode for linear array endoscopic ultrasonography (EUS) has not been established. Prior radial-scanning EUS training seems to improve subsequent linear array EUS learning. The objective of this randomized controlled trial was to evaluate its value in linear array EUS training.

View Article and Find Full Text PDF

Objective: To study the effect and feasibility of using betadine irrigation of the gastrointestinal tract for preventing infection during the natural orifice transluminal endoscopic surgery (NOTES) procedure.

Methods: Twelve sows were used in this study. Four sows in the control group were lavaged with 500 mL saline.

View Article and Find Full Text PDF

Objective: Patients with dyspepsia with alarm features are suspected of having upper gastrointestinal (GI) malignancy; however, the true value of alarm features in predicting an underlying malignancy for patients with dyspepsia with high background prevalence of Helicobacter pylori infection and upper GI malignancy is uncertain. The aim of the present study was to determine the diagnostic accuracy of alarm features in predicting upper GI malignancy by reviewing an endoscopic database consisting of >100,000 Chinese patients.

Methods: A retrospective analysis of prospectively collected data was conducted in a single tertiary medical centre.

View Article and Find Full Text PDF

Objectives: Data on therapeutic endoscopic retrograde cholangiopancreatography (ERCP) for chronic pancreatitis (CP) in children and adolescents, especially with long-term follow-up of consequences, are rarely reported. The aim of this study was to determine the long-term follow-up results of therapeutic ERCP for CP in children and adolescents.

Methods: All patients with CP who received therapeutic ERCP at Changhai Hospital from January 1997 to May 2009, with the age at first onset of pain being less than 18.

View Article and Find Full Text PDF

Background And Aims: There is a paucity of literature regarding the clinical profile of chronic pancreatitis (CP) in children. The aims of this retrospective study were to determine the etiology and clinical presentation, and to present our experience in diagnosing CP in children in China.

Methods: Clinical data of children who were treated for CP at Changhai Hospital from January 1997 to August 2006 were reviewed.

View Article and Find Full Text PDF

Background: Patients diagnosed with bile-duct, pancreatic-head, and ampullary carcinomas have a poor prognosis.

Objective: This study evaluated the potential curative efficacy and safety of intraluminal brachytherapy by using radioactive stents for palliative treatment of these patients.

Design And Setting: Patients with inoperable extrahepatic bile-duct (n = 2), pancreatic-head (n = 6), or ampullary (n = 3) carcinomas were treated by intraluminal implantation of radioactive stents designed according to a computerized treatment-planning system.

View Article and Find Full Text PDF

Background: Reports on endoscopic management of ingested foreign bodies of the upper-GI tract in China are scarce.

Objective: To report our experience and outcome in the management of ingestion of foreign bodies in Chinese patients.

Setting And Patients: Between January 1980 and January 2005, a total of 1088 patients (685 men and 403 women; age range, 1 day to 96 years old) with suspected foreign bodies were admitted to our endoscopy center.

View Article and Find Full Text PDF

Background: Biliary complications are a serious problem in patients after liver transplantation and often require reoperation. This study was conducted to summarize the endoscopic diagnosis and management of biliary complications after orthotopic liver transplantation (OLT).

Methods: From December 2000 to November 2003, twelve endoscopic retrograde cholangiopancreatographies (ERCPs) were performed in 7 patients after OLT at Digestive Endoscopic Center of Changhai Hospital in Shanghai, China.

View Article and Find Full Text PDF