ObjectiveTo investigate the expression of proapoptosis gene bad in intrahepatic cholangiocarcinoma (ICC) and its relationship to differentiation of the tumor.MethodsThe immunohistochemistry technique by Dako Envision system and rabbit antihuman bad polyclonal antibodies were adopted. The expression of bad was detected in 48 cases of ICC and 25 cases of control tissues.ResultsBad immunoreactivity in 48 cases of ICC was higher than that of bile duct epithelium in 25 cases of control tissues. And contrasted with 21 cases of well differentiated ICC, bad immunoreactivity was higher in 27 cases of middle and poor differentiated ICC.ConclusionThe expression of bad gene may be related to the differentiation of ICC.
Objective To discuss the effective surgical treatment of intrahepatic lithiasis combined with high hepatic duct strictures. MethodsTwo hundreds and sixteen cases of intrahepatic lithiasis and high hepatic duct strictures treated in this hospital from January 1993 to October 2002 were analysed retrospectively.ResultsOne hundred and eightythree cases underwent different selective operation by selected time; 33 cases complicated with acute obstructive suppurative cholangitis underwent emergency were performed single biliary drainage, in which 30 cases were reoperated. The operative procedure were: hepatic lobectomy,high cholangiotomy and plastic repair,exposure of hepatic duct of the 2nd and the 3rd order,and plastic repair with own patch and choledochojejunostomy.Two hundreds and six cases were cured,the curative rate was 95.4%; 8 cases improved (3.7%), and 2 cases died (0.9%).Conclusion The best effective surgical treatment of intrahpatic lithiasis is hepatic lobectomy. Exposure of hepatic duct of the 2nd and the 3rd order is a satisfactory to release the hepatic duct strictures and to clear the intrahepatic lithiasis. For patients with normal extrahepatic bile duct and Oddi’s function, plastic repair of bile duct with own patch is possible to keep the normal form and function. Cholangioscopy may play an important role in the treatment of intrahepatic tract lithiasis during operation.
Twenty one cases of hepatocholelithiasis treated through hepatic round ligament approach for hepaticojejunostomy is reported. Of them 5 were introgenic injury to the biliary tract， 8 were left hepatolithiasis (7 complicated with bile duct stricture), 2 were intrahepatic sandy stone with acute suppurative cholangeitis, and 3 were residual stone in left hepatic duct with cystlike dilatation after T-tube drainage; while traumatic injury to the biliary passages, previous multiple biliary tract operations and left hepatic duct stone with acute hemorrhage were present in one of case individually 75.9% each. The ages of the patients were between 32 to 50 years. Clinical follw-up in this series was satisfactory. The authors consider that this approach gives good exposure with little injury to the liver and no liver resection needed. The indication for this approach mode of anastomosis and some operative details are discussed.
We had performed transjugular intrahepatic portosystemic stent shunt (TIPSS) in one hundred and three patients with advanced liver cirrhosis and portal hypertension from July,1993 to January, 1995. TIPSS was carried out successfully in ninty-eight out of 103 cases and the technical success rate was 95.2%. Acute variceal bleeding was immediatly controlled and portal pressure reduced by an average of 1.36±0.02 kPa after TIPSS. The disappearance of gastric cornoary and esophageal varices, the shrinkage of spleen and the reduction of ascite were observed . Three patients died of acute liver failure and one died of variceal redbleeding within 30 days of treatment. Mild encephalohthy was obserbed in 10 cases with TIPSS. At follow-up of 1～22 months, variceal rebleeding and ascite were observed in 6 patients and stenosis of shunt was evident is 12.5% of cases by the subsequent doppler sonography. According to this result, TIPSS is an effective method for the treatment of portal hypertension.
Four hundred and eighty two paients suffering from intrahepatic bile duct stone undergoing lobectomy and segmental resection (from 1975 to 1994,9) has reported. 63% of the patient in this group underwent 1-5 operations, including different types of biliary-intestinal anastomosis (21.6%). 482 cases underwent different types of hepatectomy, including left lateral-lobetomy 321 cases (66.6%),left hemihepatectomy 80 cases(16.6%), right hemihepatectomy 19 cases (3.9%), and multiple segmental resections 39 cases (8.1%, including Ⅴ+Ⅷ 11 cases, Ⅵ+Ⅶ 28 cases). Other type hepatectomy combined with guadrate lobectomy 20 cases (4.1%). Postoperative complication rate was 10.2%, including diliary fistula. hemobilia and subdiaphragmatic and resectional surface infectioin, 85% of the patients were followed up with an excellent result of 88%. The authors emphsize that hepatic lobectomy nad segmental resection is the core of treatment and selection of operative methods depends on clinical-patholigic types of the disease.
Objective To investigate the research base and current understanding of the mechanism of ischemia-reperfusion injury (IR) to intrahepatic cholangiocytes after l iver transplantation, so as to identify the key points of the mechanism and provide references for cl inical practice. Methods We searched PubMed (1970 to 2007) and CBM(1979 to 2007). Qual ity assessment and data collection were performed by two reviewers independently. Since the baseline supplied and the measure were very different, we decided to provide a descriptive summary only. Results The earliest study on liver IR was publ ished in 1970. A total of 65 papers were included. There were 13 on cl inical studies, 35 on basic research studies; and 17 review articles. Most basic studies focus on injury mechanism: ① The physiology of bile ducts and Intrahepatic Bil iary Duct Cells(IBDC); ②the IR caused injury mechanism of IBDC during or after liver transplantation; ③ the basic injury mechanisms include: cold ischemia, warm ischemia, reperfusion, injury of bile and bile salts. Most clinical studies focused on preventive measures, including surgical and non-surgical approaches. Based on the evidence from basic research, changing the composition and perfusion methods of perfusate and protecting the specific blood supply to biliary ducts and cholangiocytes during the operation were important in preventing or reducing such an injury. Conclusion ① The heterogeneity of morphology, function, status and the special blood supply in large and small IBDC are important material base. ② Our own study indicated that simple IR or H/R was able to change the expression of MHC, MIC, DR4, DR5 and other adhesion molecules. ③ Compared to hepatic cells, hIBDC can’ t resist cold ischemia and even worse in tolerating reperfusion injury. ④ Hydrophobic bile salts will could increase the harm to bile ducts during organ preservation. ⑤ Due to the low quantity and limited quantities of clinical researches, the power of evidence was low. The evaluation indexes and baseline conditions are not unified. So the conclusions are for reference only.
Objective To assess the efficacy and safety of S-adenosyl-l-methionine (SAMe) for outcome improvement of intrahepatic cholestasis of pregnancy. Methods Randomized controlled trials (RCT) and quasi-randomized controlled trials were identified from MEDLINE (1983 to 2003), The Cochrane Library (Issue 4,2003), EMBASE (1980 to 2003), China Hospital Digital Library (CHDL) and Wanfang data (1994 to 2003). We also handsearched the relative references. Two researchers evaluated the quality of the trials and extracted the data independently. RevMan software 4.2 was used for meta-analysis. Results Eight studies involving 424 pregnant women were included. The following data were the results of meta-analysis of SAMe for improvements: ① Reducing cesarean-section ratio: no significant difference was seen between SAMe and placebo groups with OR 1.00, 95%CI 0.23 to 4.33 and P= 1.00; significant differences were seen SAMe versus dexamethasone and SAMe versus Dianglining with OR 0.44, 95%CI 0.23 to 0.85 and P=0.01; OR 0.28 95%CI 0.10 to 0.75 and P=0.01 respectively。② Prolonging the period of pregnancy: SAMe had no significant difference compared with placebo groups with WMD=0.70, 95%CI －0.69 to 2.10, P=0.32. SAMe was more effective than dexamethasone, Ganyinling and Qianglining on prolonging the period of pregnancy with WMD=1.10，95%CI 0.46 to 1.74, P=0.000 07; WMD=2.50，95%CI 1.86 to 3.14, P≤0.000 01; WMD=2.20，95%CI 1.61 to 2.79, P≤0.000 01 respectively；③ Increasing the weight of the newborn: meta-analysis showed that SAMe group had not significant difference compared with placebo group on increasing the weight of the newborn with WMD=-26.27，95%CI -338.35 to 285.82, P=0.87. Significant differences were seen between SAMe and dexamethasone, SAMe and Ganyiling, SAMe and Qiangling with WMD=386.86，95%CI 134.41 to 603.31, P=0.002; WMD=410.00,95%CI 321.10 to 498.90, P≤0.000 01 respectively. ④ Fetal distress: There was no significant difference compared with dexamethasone and Kuhuang groups on decreasing the fetal distress with OR=0.47, 95%CI 0.14 to 1.16, P=0.23; OR=0.44, 95%CI 0.10 to 1.97, P=0.29 respectively; ⑤ Decreasing pollution of amniotic fluid: no significant differences were seen in SAMe versus dexamethasone, SAMe versus ursoddeoxycholic and SAMe versus Kuhuang with OR=0.46, 95%CI 0.21 to 1.02, P=0.06; OR=0.68, 95%CI 0.20 to 2.31, P=0.53; OR=0.82 95%CI 0.24 to 2.81,P=0.75 recpectively. ⑥ Newborn stifile: SAMe group had no significant difference compared with dexamethasone and Kuhuang groups on decreasing the Newborn stifile with OR=0.19, 95%CI 0.01 to 4.06, P=0.29; OR=0.31, 95%CI 0.08 to 1.13, P=0.08 respectively. Compared with Qianglining group, SAMe group had better effect on reducing ratio of newborn stifile with OR=0.09, 95%CI 0.02 to 0.42, P=0.002. ⑦ Improving Apgar scores: no significant differences were seen between SAMe and placebo, dexamethasone and ursoddeoxycholic with OR=0.25, 95%CI 0.02 to 3.04, P=0.28; OR=2.09, 95%CI 0.70 to 6.27, P=0.19; OR=1.22, 95%CI 0.35 to 4.19, P=0.75 respectively. Six RCTs mentioned the side effects of S-adenosy-l-methionine, only one RCT reported mild gastrointestinal irritation. Conclusions SAMe is partly effective on improving the pregnancy outcomes of intrahepatic choletasis of pregnancy, such as reducting cesarean-section ratio, prolonging the period of pregnancy and increasing the weight of the newborn. The specified efficacy and safety of SAMe require rigorously designed, randomized, double-blind and placebo-controlled trials to offer evidence.
Objective To investigate the roles of NF-κB and EGFR in hepatolithiasis associated with intrahepatic cholangiocarcinoma. Methods Ninety cases of liver tissue specimens from hepatectomies performed in the 2nd Affiliated Hospital of Sun Yat-sen University between August 1989 and June 2009 were enrolled in the study. Among them, 33 cases of hepatolithiasis associated with intrahepatic cholangiocarcinoma were considered as observing group, 32 cases of hepatolithiasis as control group, and 25 cases of normal bile duct tissues as normal control group. The SP method of immunohistochemical staining was applied to detect the expressions of NF-κB and EGFR in intrahepatic biliary ducts epithelial cells, and their relations with clinicopathologic factors and the accumulated survival rate of hepatolithiasis associated with intrahepatic cholangiocarcinoma were analyzed. Results Expression rates of NF-κB and EGFR were gradually raised from normal control group, control group to observing group (Plt;0.01). Expression of EGFR in tumor patients was related to histopathologic differentiation grading and the depth of tumor invasion (Plt;0.05), but not to gender, age, or lymph node metastasis (Pgt;0.05)； there were no significant relationships between the expression of NF-κB and factors described above (Pgt;0.05). The survival rate of patients with tumor expressed EGFR was significantly lower than that of patients with tumor non-expressed EGFR (Plt;0.01). Conclusions NF-κB expression is in the early stage during intrahepatic cholangiocarcinoma genesis. NF-κB and EGFR play cooperating roles during hepatolithiasis carcinogenesis process. Over expression of EGFR is related with poor differentiation and prognosis of tumor.
Objective To discuss the differentiation between transient intrahepatic cholestasis (TIHC) and acute rejection (AR) after liver transplantation． Methods Characteristics and the changes (before and within 21 d after transplantation) of alanine aminotransferase (ALT) and direct bilirubin (DBIL) in 30 patients undergone liver transplantation were observed. These patients were divided into TIHC group and AR group following the diagnosis criteria, and the serum levels of ALT and DBIL were compared respectively on day 1 before liver transplantation, day 3, 7 and 21 after liver transplantation． Results Compared with day 3 after transplantation in the TIHC group， DBIL significantly ascended while ALT was changeless on day 7 after transplantation. But in the AR group， DBIL ascended significantly and ALT showed an increasing tendency on day 7 after transplantation． After appropriate therapy, DBIL and ALT of two groups both descended significantly on day 21 after transplantation． Conclusion The changes of DBIL and ALT are available for the differentiation between TIHC and AR after transplantation.
【Abstract】ObjectiveTo investigate the anatomic feature and special clinical manifestations of variant right intrahepatic bile duct draining into left hepatic bile duct near the umbilical portion. MethodsVariant right intrahepatic bile ducts joining into left hepatic bile ducts near the umbilical portions were identified through cholangiograms in 52 patients, who were included in this study. Their history, clinical process and operations were reviewed. ResultsThere were total 38 cases of intrahepatic gallstone in this group. High incidence of intrahepatic calculi was found in variant right intrahepatic bile ducts （23/38 cases, 60.52%） and left hepatic ducts （33/38 cases, 86.84%）. Most of these cases were accompanied with dilatation and stricture of bile ducts in these area. The gallstones in the variant right intrahepatic bile ducts were not detected in 8 cases (8/23) and the rate of residual gallstone was as high as 86.95%(20/23). Injury of variant right intrahepatic bile duct took place when left hepatectomy was performed in one case. ConclusionGallstone is very likely to be formed in the variant right intrahepatic bile duct due to derangement of bile hydrokinetics and compression of blood vessel. Special attention should be paid to the diagnosis and operation of this abnormity.