Objective To investigate the etiology and management of early postoperative hyperbilirubinemia after liver transplantation. Methods The etiology and dynamic alteration of early postoperative hyperbilirubinemia in 50 liver transplants were retrospectively analyzed by a comparative trial of clinical manifestation with serial liver biopsy. Results The total serum bilirubin (TB) level profile presented like a invert "S" curve. At the first week, second week and 4th week after liver transplantation the serum TB levels were in average ( 127.19? 113.15)? ( 135.45? 124.6) and ( 73.1? 49.52)??mol/L respectively. Three months later, the serum TB level approximated to normal TB level ( 29.8? 37.56)??mol/L. The dynamic alternations of total serum bilirubin level were incorporated with the morphological improvement under microscopy of liver allograft following liver transplantation. The initial hyperbilirubinemia of reciepient before liver transplantation (10 cases, 20?%), preservation injury (containing 44 cases of ischemic reperfusion injury, 88?%), acute cellular rejection (13 cases, 26?%) and bile duct leakage (4 cases, 8?%) were 4 essential causes responsible for the early postoperative hyperbilirubinemia. The total serum bilirubin level profile was not characteristic of each catergory. Those 4 casuses mentioned above presented either independently or concomitantly in concrete case. No primary hepatic failure (PHF) occurred and curability of hyperbilirubinemia was about 100?% in our series. Furthermore, the perioperative survival rate of the recipients and liver allograft was 90.6?% and 1-year accumulative survival rate was about 80?%.Conclusions The hyperbilirubinemia is common clinical manifestion within 3 months after liver transplantation. Preservative injury, acute rejection, preoperative hyperbilirubinemina and bile duct leakage are four essential causes. The comprehensive management targeted to etiology can usually achieve a good outcome for the reciepients with hyperbilirubinemia.

Objective To investigate the common reasons,prophylaxes and treatment of postoperative complications in orthotopic liver transplantation (OLT).Method Seventy two patients who underwent OLT during recent three years were collected and analyzed retrospectively.Results OLT was performed on 50 cases with benign diseases including terminal liver cirrhosis 34;and 22 cases with and malignant diseases including hepato cellular carcinoma 19 cases.Fifty four complications were occurred postoperatively,including secondary abdominal cavity bleeding (4 cases ),severe infection of ascites (2 cases),stress gastric ulcer with bleeding and perforation (1 cases),biliary leak (6 cases),pulmonary infection (21 cases),and enteric fungal infection (5 cases).There were no primary dysfunction of liver and vascular complications.Follow up 2-41 months, without biliary complications and chronic liver dysfunction occurred 6 cases death postoperative,6 cases death on follow-up period.Total surrival rate is 83.33%, 32 cases alive more than 1 year,the longest surrival cases is 41 months postoperative.Conclusions It is suggested that the cases with cirrhosis are main indication for liver transplantation.The patients with liver cirrhosis always combinated of liverdisfunction,coagulopaphy,malnutrition and poor immune functions and we should pay attention to replace that of coagulation factors,antibiotics using and nutrition support perioperatively.Good surgical technique is the key point for preventing vascular complications.

Objective To investigate the effect of liver transplantation on extensive intrahepatic duct stones with biliary cirrhosis and unresectable intrahepatic alveolar echinococcosis.Methods Orthotopic liver transplantation was performed on 2 patients with extensive intrahepatic stones with biliary cirrhosis and 4 cases of unresectable alveolar echinococcosis. The pre- and intraoperative condition and postoperative complications were evaluated. All patients were regularly followed up. Results Two patients with intrahepatic stones have survived for more than 2 years after the transplantation. Three of 4 patients with alveolar echinococcosis have survived for 9, 15 months and 2 years respectively, up to now. Another one died of heart failure at the postoperative 3rd month. All survivors have recovered well their normal life and work. Conclusion Liver transplantation could be regarded as effective therapeutic means for extensive intrahepa- tic stones and unresectable alveolar echinococcosis.

Objective To investigate the preventions and managements of hepatic artery reconstructions and its complications. Method Seventy-two patients who underwent the reconstruction of hepatic artery in orthotopic liver transplantation (OLT) and were followed up during recent 3 years after OLT were collected and analyzed retrospectively. Results The overall hepatic artery complications rate was 1.4 % (1/72). A pseudoaneurysm at the side of hepatic artery anastomosis was found by angiography and embolized successfully. The patency of hepatic artery toward donor liver was remained. Postoperative Doppler ultrasonography monitoring showed that no hepatic arterial thrombosis and stenosis occurred during 43 months of follow-up after OLT. Six patients died in the hospital after OLT and 6 patients died during the follow-up period. The overall cumulative 1-, 3-year survival rate was 83.3 % and 83.3 % respectively. No death associated with hepatic artery complications occurred. Conclusion Complete evaluation and prompt management perioperatively of hepatic artery reconstruction and its complications may improve the long-term survival of the recipients and grafts after OLT.

Objective Nanoknife,also called irreversible electroporation,is a new technique of tissue ablation.Short,microsecond electrical pulses with high voltage are applied to the cell membrane,causing pores to form within the membrane and finally leading to cell death.The current study was to investigate the efficacy and safety of the nanoknife in the ablation of the healthy pig pancreas.Methods Three healthy pigs underwent open pancreatic tissue ablation with nanoknife,and blood leukocytes and amylase were detected before and after treatment.Three pigs were sacrificed and gross specimens were collected on day 5,day 10 and day 15 after the procedure,respectively.HE staining and TUNEL staining were conducted and tissue,cellular and subcellular structures were observed under the ordinary microscope and transmission electron microscopy.Results Three experimental pigs recovered well after the procedure.No significant adhesions were found surrounding the pancreatic tissue,and the ablation zone was slightly harder.Transiently increased leukocyte count and amylase level were observed after the ablation,which decreased to the normal level on day 3 after treatment.Under light microscope,the pancreatic tissues in ablation zone appeared to be significantly different from the normal surrounding regions,with more cell death and more apoptotic cells detected by TUNEL staining.The subcellular structure changes also changed under electron microscope.But the main pancreatic duct and its large branches,together with arteriovenous distributions did not change much.Conclusions Nanoknife pancreatic tissue ablation can induce irreversible damage.In the ablation area,pancreatic duct and vascular structures are kept intact.Within a reasonable voltage range and appropriate electrical pulses setting,nanoknife ablation is safe in vivo experiment.

To explore the effect of advanced glycation end-products(AGEs)on cell viability and level of reactive oxygen species(ROS)in MIN6 cells. After intervention of various concentrations(100,200, and 400 mg/L)of AGEs for some time, cell viability was detected by MTT assay. 2', 7'-dichlorofluorescein diacetate(DCFH-DA)was used as a reactive oxygen species capture agent. The fluorescent intensity of 2', 7'-dichlorofluorescein(DCF), which was the product of cellular oxidation of DCFH-DA, was detected by flow cytometry. The level of ROS and insulin secretion was thus measured. Viability of MIN6 cells was inhibited by AGEs in a dose and time dependent manner(P＜0.05).Intracellular fluorescent intensity of DCF was markedly elevated in the AGEs groups as compared with that in the control group(P＜0.05).Insulin secretion was decreased in the AGEs groups than that in the control group(P＞0.05). The results suggest that AGEs inhibit the viability and induce oxidative stress in MIN6 cells by overproduction of ROS.

Objective To evaluate the perioperative safety and effect of irreversible electroporation (IRE) in the treatment of locally advanced pancreatic carcinoma (LAPC).Methods Twenty patients with imaging and cytohystological diagnosis of unresectable locally advanced pancreatic carcinoma were enrolled to undergo IRE treatment.The perioperative IRE-related complications were primarily analyzed to evaluate the safety of the procedure.The tumor reduction and biological response were analyzed through CT/MRI imaging and serous level of CA19-9.Results All patients were successfully treated with an average tumor size of(4.2 ± 0.6) cm and an average procedure time of (52.0 ± 23.3) minutes.Three intraoperative procedure-related complications were observed (15.0％) including two transient hypertension and one transient superventricular tachycardia.Six postoperative complications were described including two Grade A pancreatic fistula,one infection of incision,one portal vein thrombosis,one gastrointestinal hemorrhage and two functional delayed gastric emptying.The symptom remission rate was 73.7％ and lower serum CA19-9 level was recorded in all patients at discharge.Conclusions IRE is a safe and feasible procedure in the treatment of LAPC, and a reasonable operation strategy of IRE is helpful to consolidate the safety and efficacy.

Objective To understand the management status quo of migrant workers with chronic hepatitis B (CHB) to ex‐plore the management countermeasures and improve the survival quality for tamping the foundation of the healthy project .Methods Totally 300 migrant workers with CHB were performed the living quality evaluation and investigation on the service needs ,com‐pliance ,economic condition ,categories and proportion of reimbursement by adopting the supplementary revision of SF‐36 living quality scale and general information questionnaire ;the influencing factors of their living quality were performed the univariate anal‐ysis and multivariate stepwise regression analysis .Results The statistical analysis found that whether convenient for outside visit‐ing hospital ,categories and proportion of reimbursement ,whether normalized antiviral therapy ,whether conducting examination and follow up at regular intervals and liver disease specific symptoms were the influencing factors of living quality in the migrant work‐ers with CHB(P<0 .05);the living quality in the patients with outside convenient visiting hospital ,high reimbursement proportion , normalized antiviral therapy and examination and follow up at regular intervals was significantly higher than that in the patients with inconvenient outside visiting hospital ,low reimbursement proportion ,non‐normalized anti‐viral therapy and examination and follow up without regular intervals(P<0 .05);the liver disease specific symptom score showed the positive correlation trend with the living quality score (B=7 .657 ,SD=2 .650 ,t=2 .889 ,P=0 .004) .Conclusion It is necessary to improve the patient′s medical needs ,reimbursement type and proportion ,increase the compliance of patient′s normalized examination and follow‐up at regular in‐tervals and standard antiviral treatment ,thus to realize the standardized examination and treatment in CHB patients ,prevent or de‐lay the disease progression ,avoid liver cirrhosis and decompensated hepatopathy ,reduce the occurrence of HCC ,improve the quality of life and prolong the survival period .

Objective To explore the effect of perioperative risk factors on post-liver transplantation acute renal failure ( ARF). Methods Clinical data of 89 cases undergoing liver transplantation between 1999 and 2002 in our centre were retrospectively analyzed. Univariate logistic regression analysis was used to determine relative risk factors leading to post-liver transplantation ARF. Significant factors were then entered into a multivariate logistic regression to identiy factors independently associated with post-liver transplantation ARF. Result In univariate analysis, intraoprative volume of blood transfusion (P - 0. 041) and duration of operation (P = 0. 005) are with statistical significance. ARF is associated with a poor prognosis ( P

OBJECTIVETo evaluate the down stream involvement of the bile duct in hepatolithiasis.

METHODSMechanical damage to bile duct epithelia and long standing cholangitis as result of hepatolithiasis play an important role in the carcinogenesis of bile duct epithelia and stricture of the intra- and extra-hepatic bile duct. Macromorphological and microscopic changes in bile duct mucosa of 100 consecutive patients with hepatolithiasis were investigated using intra- or post-operative cholangioscopy. Biopsy specimens of lesions obtained during cholangioscopy were studied with immunohistochemical staining and flow cytometry to determine proliferative activity and DNA content. Five cases of well-proven cholangiocarcinoma were simultaneously studied as controls.

RESULTSOf the 100 patients, those with chronic cholangitis accounted for 86% (86/100), proliferative lesions 11% (11/100), adenomatous polyps 1% (1/100), and adenocarcinoma 2% (2/100). The obvious mucosal lesion associated with hepatolithiasis was located down-stream of the bile duct, predominantly in the hilar region, e.g. orifices of the right/left hepatic duct and common hepatic duct (73% mucosa lesions in the hilar region). The intensity of cancer embryonic antigen stain and the proliferative cell nuclear antigen index increased with the development of bile duct lesions. Aneuploid DNA presented mainly in the high degree malignant adenocarcinomas (> 80% of cases).

CONCLUSIONSThe obvious mucosal lesions associated with hepatolithiasis were located down-stream of the bile duct, predominantly in the hilar region (73% of mucosal lesions). The proliferative activity of examined bile duct mucosa lesions increased with the development of pathological deterioration, which may contribute to the development of hilar bile duct stricture and hilar cholangiocarcinoma.

Adult ; Aged ; Bile Ducts ; pathology ; Carcinoembryonic Antigen ; analysis ; Cholangiocarcinoma ; etiology ; Humans ; Lithiasis ; complications ; pathology ; Liver Diseases ; complications ; pathology ; Middle Aged ; Proliferating Cell Nuclear Antigen ; analysis