Objective To study the etiology of primary intrahepatic stones. MethodsThe literatures in the recent years on the etiology of intrahepatic stone were revieved. Results The formation of intrahepatic stone mainly caused by bacteria infection, parasitic infestation, bile stasis, congenital anatomic abnormalities and immunoreaction of bile tract. Further investigation found that metabolic, low protein diet, environment and ethnic factors and gene mutation were considered to play important roles in the formation of the intrahepatic stone. Conclusion The formation of intrahepatic stone is complex and are result of multiple factors. It closely related to the infection and stasis of the bile duct.
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 recurrence of intrahepatic bile duct stones and study the relations to the primary intrahepatic stones.Methods One hundred and twenty nine patients who experienced complete lithotomy were followed up for 2-10 years. Results Thirty five cases had the recurrence of intrahepatic stones at 49 sites (27.13%). The recurrent stones were found at following sites: 13 at left duct, 12 right duct , 8 left medial segment, 6 right anterior segment, 4 right posterior segment, 3 left lateral segment, 3 caudate. Nine cases were asymptomic, 16 cases had slight symptoms and 10 cases suffered from the serious attacks of stones. The time of recurrence was from 2 to 9 years (5.49±2.25 years) after surgery. The recurrent rate was 27.13% in our group. Conclusion The recurrence of intrahepatic stones also developed at several sites in the liver. The recurrence of intrahepatic stones had a tendency to develop at the primary sites. The recurrence of intrahepatic stones may be asymptomic and most patients suffered from slight attack. Liver resection is the best way to prevent the recurrence from intrahepatic stones.
ObjectiveTo systematically review the clinical efficacy and effects on pregnancy outcomes of S-adenosy-L-methionine combined with ursodesoxycholic acid in the treatment of intrahepatic cholestasis of pregnancy. MethodsDatabases such as PubMed, The Cochrane Library, CNKI, VIP, WanFang Data were searched for the studies about the clinical efficacy and effects on pregnancy outcomes of S-adenosy-L-methionine combined with ursodesoxycholic acid in the treatment of intrahepatic cholestasis of pregnancy up to December 31st, 2013. Two reviewers independently screened literature, extracted data and evaluated methodological quality. Then meta-analysis was conducted using RevMan 5.0.24 software. ResultsA total of 11 RCTs involving 776 patients were included. The results of meta-analysis showed that, combined medication reduced blood biochemical indexes inlcuding ALT (MD=3.63, 95%CI 0.63 to 6.64, P=0.02), TB (MD=3.70, 95%CI 1.45 to 5.96, P=0.001), and AST (MD=7.61, 95%CI 2.47 to 12.75, P=0.004). Combined therapy significantly decreased the rates of amniotic fluid contamination (OR=0.29, 95%CI 0.19 to 0.45, P=0.000 01), cesarean section (OR=0.53, 95%CI 0.36 to 0.79, P=0.002), postpartum hemorrhage (OR=0.32, 95%CI 0.12 to 0.90, P=0.03), preterm birth (OR=0.36, 95%CI 0.24 to 0.55, P < 0.000 01), fetal distress (OR=0.33, 95%CI 0.19 to 0.58, P=0.000 1) and neonates asphyxia (OR=0.30, 95%CI 0.19 to 0.47, P < 0.000 01). Combined therapy was also beneficial to improving pruritus symptoms (MD=0.20, 95%CI 0.08 to 0.31, P=0.000 08) and benefiting fetus growth (MD=0.45, 95%CI 0.23 to 0.66, P < 0.000 1). ConclusionThe combination of S-adenosy-L-methionine and ursodesoxycholic acid is superior to ursodesoxycholic acid alone in improving clinical symptoms and pregnant outcomes of patients with intrahepatic cholestasis of pregnancy.
ObjectiveTo develop and validate a nomogram for predicting the cancer-specific survival in patients with intrahepatic cholangiocarcinoma (ICC) after hepatectomy. MethodsSuitable patient cases were selected from the Surveillance, Epidemiology, and End Results (SEER) database. Nomograms were established based on the independent prognostic factors identified by COX and Lasso regression models. The performance of the nomograms was validated internally and externally by using the concordance index (c-index), calibration plot, and decision curve analysis. ResultsThe multi factor COX regression results showed that: age, gender, T stage, tumor grade, tumour diameter and number of positive lymph nodes were independent prognostic predictors for cancer-specific survival (CSS) in ICC patients. Nomogram predicting CSS had a c-index of 0.66 (95%CI 0.64 to 0.69) in the training cohort and 0.67 (95%CI 0.63 to 0.72) in the internal validation cohort. The 1-, 3- and 5-year areas under the curve (AUC) of nomogram were 0.68, 0.74 and 0.75 in the training cohort respectively. In the validation cohort, the 1-, 3- and 5-year AUC of nomogram were 0.69, 0.68 and 0.71, respectively. ConclusionThe prediction model constructed based on six factors, including age, gender, pathological stage, T-stage, tumour diameter and number of positive lymph nodes, shows good prediction accuracy.
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.
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 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.
ObjectiveTo explore the clinical, imaging, and pathological features of patients with synchronous double primary hepatocellular carcinoma and intrahepatic cholangiocarcinoma (sdpHCC-ICC), to enhance our understanding of the disease and reduce the rate of misdiagnosis and missed diagnosis.MethodsThe clinical, imaging, and pathological data of patients who were histologically confirmed as sdpHCC-ICC in West China Hospital of Sichuan University between January 1st 2014 and December 31st 2018 were studied retrospectively.ResultsA total of 11 patients with sdpHCC-ICC were screened for the study, of which 10 were male and 1 was female. The median age of patients was 55.6 years (ranged from 47 to 73 years). Eight patients were chronically infected with hepatitis B virus. Both increased alpha-fetoprotein and carbohydrate antigen 19-9 were observed in 8 patients. Contrast enhanced CT was performed in 8 cases, color doppler ultrasound in 4 cases, enhanced MRI in 3 cases, and contrast-enhanced ultrasound in 1 case. Among them, one solitary lesion was found in 2 patients, and two or more lesions were observed in 9 patients. Most of the patients had typical imaging performance of hepatocellular carcinoma (HCC): 8 patients showed strong enhancement of HCC during the hepatic arterial phase and progressive hyper-attenuation on venous and delayed phases, 1 patient showed peripheral rim enhancement in the arterial phase of intrahepatic cholangiocarcinoma (ICC) in another lesion could be observed at the same time. None of the 11 patients with sdpHCC-ICC was diagnosed accurately before operation. All patients underwent surgical treatment. HCC lesions were distributed in all parts of the liver, while ICC lesions were located in the right lobe of the liver in 10 cases. The median diameter of HCC and ICC was 3.5 cm and 2.1 cm, respectively. All of them were confirmed by hematoxylin-eosin staining and immunohistochemistry.ConclusionsThe clinical characteristics of sdpHCC-ICC are usually atypical. It is difficult to make an accurate preoperative diagnosis. Tumor markers may be valuable to the diagnosis of sdpHCC-ICC. The definite diagnosis of sdpHCC-ICC depends on pathological examination.
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.