1.Dynamic analysis of academic influence on liver diseases journals during 2003-2008
Hongmei ZHU ; Dazhi ZHANG ; Hong REN
Chinese Journal of Medical Education Research 2012;11(7):763-766
Fifteen journals related with liver diseases were selected from Chinese science and technology journal citation reports ( core ) ( CJCR ) during 2004 - 2009.Eleven important quantitative indicators including total cited frequency and impact factor were analyzed.At the same time,the dynamic evaluation model was also used to evaluate the academic influence of the 15 kinds of liver diseases journals.There were 5 kinds of trends:always arising,spiral arising,stabilizing after adjusting,vibrating highly and adjusting.The academic influence of liver diseases journals was rather high,but there were some problems including low academic influence,low ratio of funded papers and international papers and poor paper quality.
2.Vancomycin-resistant Enterococcus Infection after Orthotopic Liver Transplantation
Ren LANG ; Dazhi CHEN ; Qiang HE
Chinese Journal of Nosocomiology 2006;0(08):-
OBJECTIVE To analyze the characteristic of vancomycin-resistant Enterococcus(VRE) infection after orthotopic liver transplantation, and provide a basis to improve prophylaxis and therapy. METHODS A retrospective survey in 136 patients who underwent orthotopic liver transplantation was carried out to define the incidence, clinical feature and therapeutic outcome of VRE infection. RESULTS Eleven patients were infected by VRE in this study and the incidence of infection by VRE was 8.1% following liver transplantation. Totally 31 of the VRE isolates were isolated, including 26 Enterococcus faecium strains and 5 E. faecalis strains. Sites of VRE infection included abdomen(n=4), blood(n=2), and respiratory tract(n=2). In the other 3 patients, VRE was cultured from multiple sites. Among 11 patients with VRE infection, 4 were sensitive to teicoplanin, and 7 resistant to teicoplanin. So 4 patients received antibiotics with teicoplanin and 7 patients with linezolid. In this study, 10 patients were cured and 1 patient died of sepsis. CONCLUSIONS VRE has become an nosocomial pathogen of increasing importance in liver transplantation patients. The risk factor of VRE infection should be paid attention. Infection prophylaxis of VRE should be emphasized.
3.Intrahepatic diffuse biliary stricture after orthotopic liver transplantation
Ren LANG ; Dazhi CHEN ; Qiang HE
Chinese Journal of General Surgery 2009;24(7):536-538
Objective To evaluate the treatment and prevention measure for intrahepatie diffuse biliary stricture after orthotopic liver transplantation. Methods The clinical data of 21 patients with intrahepatic diffuse biliary stricture after orthotopic liver transplantation from January 2002 to December 2007 in Beijing Center for Organ Transplantation were retrospectively analyzed. A prospective clinic study was launched in order to prevent microthrombosis in the microcireulation of bile duct during warm and cold iscbemia in non-heart-beating donor since January 2006. Urokinase perfusion of the artery system was conducted during graft harvesting and reperfusion at the end of graft trimming to reduce the incidence of intrahepatic diffuse biliary stricture. Results Among 21 patients with intrahepatie diffuse and mixed type biliary stricture, 16 patients underwent liver retransplantation, and the other 5 patients died of primary graft failure while waiting for retransplantation. The incidence of intrahepatic diffuse biiiary stricture was 5.9% in non-urokinase perfusion group. On the contrary, the incidence rate of intrahepatie diffuse biliary stricture was 1.4% in urokinase perfusian group (x2 = 5.98, P < 0. 05). Conclusions Liver retransplantation is effective for refractory biliary stricture in liver transplant recipients. The incidence of intrahepatic diffuse biliary stricture is reduced in non-heart-beating donor by using urokinase perfusian.
4.Fulminant hepatic failure and emergency orthotopic liver transplantation: report of 4 cases
Qiang HE ; Dazhi CHEN ; Ren LANG
Chinese Journal of Organ Transplantation 2003;0(05):-
Objective To summarize the experience of emergency orthotopic liver transplantation (EOLT) in fulminant hepatic failure (FHF).Methods The clinical date of 4 cases of FHF successfully subject to EOLT were retrospectively analyzed.Results Four patients’ consciousness completely recovered in 12 to 48 h after operation, no surgical complication occurred; Acute rejection postoperatively occurred in 2 patients and reversed after treatment. Now 4 patients were survived for 38, 17, 11, 7 months respectively with good liver function, and 3 of them went to work again.Conclusion EOLT is an effective means to cure FHF. Choosing appropriate perioperative management and (operative) timing is essential to improve the successful rate of EOLT.
5.The clinical feature and diagnosis of transient intrahepatic cholestasis in early stage of orthotopic liver transplantation
Ren LANG ; Dazhi CHEN ; Qiang HE ; Xin ZHAO ; Ning LI
Chinese Journal of General Surgery 2000;0(11):-
Objective To discuss the feature of transient intrahepatic cholestasis in early stage of orthotopic liver transplantation. Methods Based on the review of early (within 1 month) postoperative hyperbilirubinemia in consecutive 200 patients undergoing liver transplantation, we summarized the occurrence, development and outcome of early postoperative intrahepatic cholestasis. Results Early transient intrahepatic cholestasis was identified in 112 patients. The characteristic of early intrahepatic cholestasis is that DBIL and?-GT increasingly elevated from the second or third day postoperatively, with a peak on the 7 - 14th d, then descended to normal level on approximately 21 -28th day. The average peak level of DBIL and?-GT were( 157. 32?82. 08)?mol/L and (172?80) IU/L respectively. During the period of DBIL and?-GT ascending, AST and ALT kept descending, and within 1 week it could fall to normal level. Acute rejection, drug toxicosis and bile duct obstruction were excluded. Conclusions Postoperative early transient intrahepatic cholestasis associated with ischemia-reperfusion injury has its special clinical process and most patients recover themselves without the need for special therapy.
6.Expression of circulating CD4+ CD25+ Foxp3+ regulatory T cells in liver allograft recipients with acute rejection
Hua FAN ; Qiang HE ; Lixin LI ; Zhongkui JIN ; Ren LANG ; Dongdong HAN ; Xianliang LI ; Dazhi CHEN
Chinese Journal of Organ Transplantation 2011;32(2):95-98
Objective To investigate the expression of peripheral blood (PB) CD4+ CD25+ Foxp3+ regulatory T cells (Tregs) in patients with benign end-stage liver disease after liver transplantation and the relationship between levels of PB Tregs and acute rejection. Methods A prospective analysis was performed on 55 consecutive patients who underwent liver transplantation.Fourteen out of 55 cases suffered from acute rejection after liver transplantation were defined as rejection group,while the rest patients were classified into no acute rejection group. PB was obtained from liver transplant patients at different time points longitudinally: pre-transplant, post-transplant within one year and acute rejection. The circulating CD4+ CD25+ Foxp3+ Tregs in PB were measured by flow cytometry. Blood samples were drawn during acute rejection, at the same time, liver biopsies were performed. The circulating CD4+ CD25+ Foxp3+ Tregs were compared between two groups.Results There was no difference between two groups in levels of circulating CD4+ CD25+ Foxp3 + Tregs cells pre-transplant. However, the levels of circulating CD4+ CD25+ Foxp3+ Tregs in rejection group were decreased significantly as compared with no-rejection group (2. 23 % ± 0. 54 % vs. 2. 99 % ±0. 86 %,P<0.01). The frequency of CD4+ CD25+ Foxp3+ T cells was negatively correlated with rejection activity index (RAI) (r = - 0. 80, P<0. 01 ). Conclusion Monitoring PB CD4+ CD25+ Foxp3+ Tregs levels may be helpful in evaluating the immune state and act as a more sensitive marker for acute rejection diagnosis in the patients following liver transplantation.
7.Efficacy and pharmacoeconomical analysis of three platinum based chemotherapy regimens for advanced non small cell lung cancer
Mengxi ZHANG ; Wenjun YU ; Chunling REN ; Zheng JIAO ; Zhijie AN ; Dazhi WANG
Chinese Journal of Primary Medicine and Pharmacy 2017;24(14):2088-2091
Objective To explore the cost-effectiveness and clinical effect of three platinum based chemotherapy regiments for advanced non small cell lung cancer (NSCLC).Methods 100 patients who were diagnosed as NSCLC,were randomly divided into four groups.The group Ⅰ received NP which was given NVB and DDP.The group Ⅱreceived GP which was given GEM and DDP.The group Ⅲ received TP which was given taxotere and DDP.The clinical effect,adverse reaction and cost effectiveness of the three groups were assessed.Results The clinical effective rates of the three groups were 31.43%,36.36%,37.50% from Ⅰ to Ⅲ group.The adverse events of the group Ⅰ and group Ⅱ were more than those of the group Ⅲ.In the adverse effects of treatment,the major cytotoxicity was digestive reaction and leukopenia in the two groups,but they were tolerable.The ratios of cost effectiveness in the four groups were 550.22yuan,556.48yuan,583.23yuan from Ⅰ to Ⅲ group.Conclusion The NP group is the best one in total cost.
8.Biliary tract reconstruction without T-tube in orthotopic liver transplantation
Ren LANG ; Dazhi CHEN ; Qiang HE ; Zhongkui JIN ; Dongdong HAN ; Jiantao KOU ; Hua FAN
Chinese Journal of General Surgery 2008;23(7):510-512
Objective To probe the indication of biliary tract reconstruction without T-tube in orthotopic liver transplantation.Methods We put forward indications of biliary tract reconstruction without T-tube in orthotopic liver transplantation since January 2004 and there were 102 patients who underwent liver transplantation in our hospital without a T-tube in place after biliary tract reconstruction.The incidence of biliary tract complication was observed in these patients.Results All patients were followed up for more than 6 months.The incidence of biliary tract complication was 4.9 percent(5/102)in this group with 3 patients of intrahepatic difluse bile duct stenosis necessitating liver re-transplantation.The other 2 patients with common hepatic duct nonanastomotic stenosis were healed by ERCP plus stent placement.Conclusions Biliary tract reconstruction without T-tube placement helps to decrease the incidence of biliary tract complications resulting from the T-tube removal.
9.Effect of implantation of bone marrow mononuclear cells on ischemic-type intrahepatic biliary lesion in rabbits
Zhaowei QU ; Qinsong SHENG ; Dazhi CHEN ; Ren LANG ; Qiang HE ; Fei PAN ; Xiaosheng ZHANG
Chinese Journal of Hepatobiliary Surgery 2010;16(10):781-784
Objective To investigate the effect of implantation of bone marrow mononuclear cells (BM-MNCs)on neovascularization and ischemic-type intrahepatic biliary lesion in rabbits.Methods The animals were divided into the sham-operation group, experimental model group and BM-MNCs implantation group with 10 rabbits in each. The animal model of ischemic-type intrahepatic biliary lesion was established by clamping the hepatic artery and common bile duct. The BM-MNCswere isolated from the tibial plateau by means of density gradient centrifugation and were implanted through the common hepatic artery. Changes of some biochemical markers such as ALT, AST, ALP,γ-GT, TBIL and DBIL etc. were detected. In 4 weeks after operation, the cholangiography, histopathological manifestation, differentiation of BM-MNCs, and microvessel density were observed.Results At each observation time, the degree of change of biochemical markers in group C was lower than that in group B. The engrafted cells could differentiate into vascular endothelial cells. The intrahepatic biliary lesion of group B was severer than that of group C but had fewer new capillary blood vessels around it. Conclusion The implantation of BM-MNCs can promote neovascularization and increase blood supply to the ischemic bile duct to diminish or prevent ischemic-type intrahepatic biliary lesion.
10.Explore on humanistic education in teaching of infectious disease
Yao CHEN ; Fanghua XIE ; Dachuan CAI ; Zhi ZHOU ; Dazhi ZHANG ; Hong REN
Chinese Journal of Medical Education Research 2012;11(10):1048-1050
Medical science has both the characteristics of natural science and humanities.Modem medical education pays more attention to the close association between professional education and humanistic education.How to handle the relationship between infectious disease and humanistic education has become more and more important.In current study,integrating humanistic education in clinical infectious disease teaching not only improved infectious disease teaching effect but also established good medical ethics and increased the comprehensively quality.