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.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.
3.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.
4.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.
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.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.
8.Application of noninvasive positive-pressure ventilation in the treatment of acute respiratory distress syndrome caused by acute pancreatitis
Dong ZHANG ; Ren LANG ; Zhongkui JIN ; Xin ZHAO ; Fei PAN ; Mingfeng WANG ; Qiang HE ; Dazhi CHEN
Chinese Journal of Pancreatology 2011;11(4):237-239
Objective To evaluate the clinical value of noninvasive positive-pressure ventilation (NPPV) treatment in acute respiratory distress syndrome caused by acute pancreatitis. Methods A retrospective study of 27 cases, with acute respiratory distress syndrome (ARDS) caused by acute paucreatitis,who were admitted to our department from Jan 2007 to May 2010 and treated with NPPV, was performed. The changes of heart rate, respiratory rate, PaO2, oxygenation index (OI) and PaCO2 before and after treatment were compared. Results The heart rate, respiratory rate of 25(92.6% ) patients decreased from (118.4 ±13.4)/min, (32.1 ± 1.7)/min to ( 81.9 + 8.5 )/min, ( 19.9 ± 2.1 )/min; PaO2, OI and PaCO2 increased from (74.1 ±5.0)mmHg, (148.2 +10.0)mmHg, (28.7 ±1.6)mmHg to (110.4 ±20.8)mmHg, (204.5±71.1)mmHg, (38.4 +3.6)mmHg 48 h after NPPV, respectively, and they recovered and were transited to oxygen supply by Venturi mask. 2 (7.4%) patients deteriorated and were transited to invasive positive-pressure ventilation support. Conclusions NPPV could effectively improve oxygenation of patients with ARDS caused by acute pancreatitis. The procedure of NPPV is relatively easy to use and to learn with few complications, and worth of clinical application.
9.Significance of thoroughly study and practice ‘ Bethune spirit’ for development of affiliated teaching hospital
Juan KANG ; Dazhi ZHANG ; Zhi ZHOU ; Peng HU ; Hong REN ; Xiaoling WU
Chinese Journal of Medical Education Research 2013;(4):376-378
Medical ethics is correlated with further development of affiliated teaching hospital.Our hospital took ‘ Bethune spirit’ and philosophy of forgiveness and kindheartedness as guidance and became the first batch of Bethune spirit model hospital of Chongqing.Teaching quality was improved by providing lectures about ‘ Bethune spirit’ for medical students and equally emphasizing medical knowledge and medical ethics education.Anti-corruption and academy governing movements with the subject of ‘ Bethune spirit’ were carried out to repel academic misdeed,with the result that clinical,teaching and scientific works were promoted and advanced.
10.Pancreatic intraductal papillary mucinous neoplasm coexisting with extrapancreatic malignancy: an analysis of pooled published data
Dong ZHANG ; Ren LANG ; Dazhi CHEN ; Hua FAN ; Zhongkui JIN ; Xianliang LI ; Yan FENG
Chinese Journal of Hepatobiliary Surgery 2012;18(10):758-761
ObjectiveTo analyse the clinical characteristics of pancreatic intraductal papillary mucinous neoplasm (IPMN) which coexists with extrapancreatic malignancy (EPM),with an aim to provide strategies for clinical diagnosis and treatment.MethodsThe PubMed was used to search for the pancreatic IPMN related articles with positive pathologic results.A pooled analysis was then performed.The ratio ofpancreatic IPMNs coexisting with EPMs and the locations (or the type) of EPMs were analyzed.ResultsAfter a strict process of screening,18 articles met the pre-determined standardsand were accepted.Of the 1327 patients,363 had coexisting EPMs (27.35%).There were 392 EPMs in these 363 patients.The EPMs occurred in almost all the systems of the body,especially in the digestive tract and its related organs,which accounted for 63.06% of the EPMs. Conclusions There is a tendency for patients with pancreatic IPMN to have coexisting EPM. More than half of these EPMs are malignant tumors in the digestive system. When pancreatic IPMN is diagnosed,the clinician should be aware of the possible coexistence of an EPM and should look for the possibility of a new EPM developing in a patient after treatment of pancreatic IPMN.