Though the primary data on fully covered self-expandable metal stents (FCSEMS) in the treatment of benign biliary strictures caused by chronic pancreatitis and anastomotic stricture following orthotopic liver transplantation is encouraging,the risks including stent translocation,biliary infection,pancreatitis and inability to remove stents should be considered before replacing plastic stents with FCSEMS for the first-line treatment of benign biliary strictures in routine practice.FCSEMS is effective in treating benign pancreatic ductal strictures,but it is also associated with a high rate of stent translocation.To overcome this problem,FCSEMS with better conformability and flared ends need to be designed.There is a theorectial risk of pancreatic ductal infection caused by the blockage of side branches of the pancreas by covering membrane of the stents.However,no such complication was reported.Given the uncertain long-term efficacy and safety of FCSEMS for benign pancreatic ductal strictures,their use may be reserved for the management of retractory,symptomatic benign strictures only in selected groups of patients.

To treat residual or recurrent stones after operation on hepatolithiasis conveniently and effectively, a subcutaneous permanent tunnel to bile duct (SPTBD) was established in 564 cases of hepatolithiasis by using an afferent jejunum or a well-functioned gallbladder in order to provide a postoperative way to remove residual or recurrent stones through cholangioscopy. We found that by cutting SPTBD open to remove residual or recurrent stones through cholangioscopy in 96 out of 238 followed-up cases, all the patients got good clinical effects without death or complications. The results suggest that it is a good method to establish a SPTBD during operation in patient with hepatolithiasis. It is a simple and effective way to cut SPTBD open to remove residual or recurrent stones after operation.

Objective To explore the current management strategy and effect of damage control operation(DCO)for severe pancreatic trauma. Methods The clinical data of 19 cases with severe pancreatic trauma were selected as the object of this study.A retrospective analysis was done on preference of DCO moduses and perioperative therapies.Results Operations were performed in all 19 patients including six cases(32%) treated with rapid surgical haemorrhage control,wound excision and drainage,three(11%) with Cogbill operation and 10(53%) with Whipple operation without reconstituted digestive tract.Then,all cases were under reoperations after SICU resuscitation.Death was caused by associated organs injuries and secondary infection,with mortality rate of 11%.The pancreatic fistula occurred in two cases(11%) that were healed by conservative treatments.Conclusion For severe pancreatic trauma cases in accordance with DCO indications,active and reasonable operation should be done according to location and degree of pancreas injury.

Objective To study relationship between hepatocellular apoptosis and glycogen contents during cold preservation-reperfusion of liver and its mechanism. Methods Rat liver models with different contents of glycogen were established and the rats were divided into 4 groups (A, B, C and D). During cold reservation-reperfusion of liver, the changes in hepatocellular apoptosis and tissue SOD, GSH and MDA were observed in the groups. Results After cold preservation for 9 h in each group, 60?min reperfusion could result in obvious apoptosis in livers. There was difference in the numbers of apoptotic hepatocytes among all the groups. At the same time, there also were significant difference in the levels of SOD, GSH and MDA in liver tissue among the four groups.Conclusion Intracellular abundant glycogen may significantly depress hepatocellular apoptosis during hepatic cold preservation-reperfusion by decressing oxygen free radicals.

Objective To investigate the effect of intracellular glycogen on mitochondrial respiratory function of the ischemic reperfusion hepatocytes and its values.Methods During liver ischemia-reperfusion in the 21 rabbits,the tissue ATP content,hepatic enzymological change,respiratory control ratio(RCR) and P/O ratio of hepatocellular mitonchondria were observed in liver glycogen content significantly different three groups.Results Rabbit liver tissue with the higher content of glycogen has shown the higher mitonchondrial ATP content,also showed the higher RCR and P/O ratio of hepatocellular mitonchondria and the slighter injury of liver function.Conclusion Intracellular abundant glycogen may significantly improve respiratory functon of mitochondria,which can play an important role in keeping the hepatocellular function well during liver ischemia-reperfusion.

Objective To evaluate the effect of pancreatic elastase on the expression of TNF ? and IL 1? in Kupffer cells induced by lipopolysacchride. Method Cultivating Kupffer cells were divided into 3 groups. In group A, physiological saline was added into the culture medium as control (control group). Lipopolysacchride (LPS) was added instead of saline in group B (LPS group). In group C both lipopolysacchride and pancreatic elastase were added to the cultere medium (LPS+elastase group). The expressions of TNF ?, IL 1? and TLR4 mRNA in Kupffer cells were determined by RT PCR, and concentrations of TNF ? and IL 1? in the culture media by ELISA. Results The results of both RT PCR and ELISA indicated that the expressions of TNF ? and IL 1? in group C was significantly higher than that in group B. Conclusion It was concluded that pancreatic proteases such as elastase could enhance the expressions of TNF ? and IL 1? of hepatic Kupffer cells induced by lipopolysacchride, and the results the might offer the explanation why inflammatory reaction could be amplified in the course of acute pancreatitis

Objective To summarize the clinical effects of cholecystocholangiostomy (STHG) in the treatment of hepatocholangiolithiasis and hepatic portal bile duct stenosis. Methods The early complications, clinical effects, and functions of gallbladder in a total of 135 patients, admitted since 1994 were for STHG were retrospectively analyzed. Results No early complications were observed after the operation. The contraction and concenration function of the gallblader remained basically normal. The color of gallbladder mucosa was normal,and no edema or erosion was found under choledochoscopy. Conclusions This operation not only maintained the normal physiological functions of the gallbladder and Oddi sphincter, but also the physiological flow of the bile, farthermere it prevented reflux of intestinal juice and reflax chdangitis. Because the anastomotic stoma was large, concentrated bile within the gallbladder could freely get access to the intrahepatic biliary tract, the concentration of bile acid in the intrahepatic bile duct was markedly elevated, so that the solubility of bilirubin crystal, was increased and recurrence of calculus formation eould be retarded. There fore, STHG should be considered to be an optimal operation in dealing with hepatocholangiolithiasis and biliary stenosis.

Objective To evaluate the role of early growth response gene1 (Egr-1) in liver injury in taurocholate-induced acute pancreatitis rat model. Methods Twenty-four male rats were divided into 4 groups. Egr-1 immunohistochemistry staining and pancreatic pathologic scoring were assessed, and the serum levels of AST, LDH, TNF-? and IL-1 ? were measured. Egr-1 mRNA levels of primary hepatocyte culture stimulated with TNF-? and pretreated primary hepatocytes with PD98059 followed by TNF-? stimulation were also observed. Results Egr-1 expression of liver correlated with degree of liver injury in acute pancreatitis in rat, and high Egr-1 mRNA expression of primary hepatocyte was observed when hepatocyte injury occurred. After pretreated with PD98059, TNF-?-stimulated hepatocytes showed a lower level of Egr-1 mRNA compared with hepatocytes without pretreatment. Conclusions Egr-1 may play an important role in liver injury in acute pancreatitis, and this effect depended partly upon extracellular signal-regulated kinase 1/2 (ERK1/2) pathway.

Purpose:To study the effects on T lymphocyte subtypes with chemical splanchic denervation for patients with pancreatic carcinoma and intractable pain.Methods:32 cases with advanced pancreatic carcinoma accepted chemical splanchic denervation-pure alcohol injection around celiac ganglion guided by B US to relieve the severe pain. The fasting peripheral blood concentration of CD + 3 ,CD + 4 ,CD + 8 and ? endorphin were determined before treatment ,3rd,7th,15th and 30th day after therapy. 38 healthy persons were taken as control group.Results:The percentage of CD + 3 ,CD + 4 ,CD 8+ cell were apparently decreased in patients with pancreatic carcinoma comparing with control group( P

Objective To study the expression of survivin protein in primary hepatocellular carcinoma(PHC) and its relationship to the proliferation of the tumor cells and prognosis of PHC. Methods The expression of survivin protein and the proliferation of tumor cells marked by proliferating cell nuclear antigen (PCNA) in 48 cases of PHC were determined by immunohistochemical method. Results The survivin protein was expressed in 31 of 48 cases of PHC (64.6%). The expression of PCNA was significantly higher in hepatocellular carcinoma (HCC) with positive survivin expression than in HCC with negative survivin expression. The patients with positive survivin expression had the worse prognosis than those with negative survivin expression. Conclusion The expression of survivin may play an important role in the proliferation of PHC cells and closely associate with the prognosis of PHC, and probably become the prognostic factor and an important target of therapy.