Objective:The present study was designed to strengthen the education of research integrity, and to improve the awareness of academic misconduct and academic literacy of medical post-graduate students.Methods:A questionnaire survey was conducted with master post-graduate students of a university affiliated hospital, and statistical analysis on the education of research integrity and the perception of academic misconduct among the survey respondents was performed.Results:Academic master post-graduate students′ cognitions of the misconduct in scientific research process and overall academic misconduct were better than that of professional master post-graduate students, and there were significant differences ( P<0.05). The more times of participation in research integrity training, the better cognition of misconduct of scientific research process, research results publication process, and overall academic misconduct, with significant differences ( P<0.05). Conclusions:The education on scientific research integrity of medical post-graduates should be carried out systematically, while the content should be improved and the form should be enriched for scientific research integrity education, so that the medical post-graduates can have a deeper understanding of the code of academic practices, and an education model of scientific research integrity for medical post-graduate which is suitable for China′s national conditions can be gradually developed.

Objective:To analyze the research hotspots and frontiers of hospital research management research from 1981 to 2022.Methods:The relevant literature in the field of hospital scientific research management was retrieved from the CNKI database to explore the trends of publications in this research field. A scientific knowledge graph was drawn and a visualization analysis of the information of authors, issuing units, and research institutions were conducted by Cite Space.5.8.R3.Research hotspots were discussed based on keyword emergence, cluster analysis, and keyword time zone graph.Results:The publication trend in this field was generally policy-oriented, but the cooperation among authors and institutions was relatively loose, and the research hotspots were gradually shifting from scientific research funding management to discipline construction, talent training, translational medicine, and informatization. Cluster analysis found that the main content of hospital scientific research management was scientific research funding and clinical scientific research management and the main management objects were the medical and nursing staff.Conclusions:Hospital scientific research managers must adhere to the policy-oriented approach, strengthen the cooperation and exchanges in scientific research management, innovate the scientific research management mode around the research hotspots and development trends, and promote the quality and efficiency of scientific research management.

Objective:By analyzing the biomedical papers retracted due to the reason that " original data not provided" , to discuss the necessity of preventing scientific data misconduct and the feasible solutions for its management.Methods:Data of the international papers that were published from Jan 2011 to Dec 2021 and retracted due to " original data not provided" were retrieved from Retraction Watch Database. The data of time distribution, institution, journal sources, reasons for retraction, and disciplinary distribution were statistically analyzed and visually processed by using software packages of Excel, Python 3.7, Gephi 0.92.Results:A total number of 529 papers published in the biomedical field were retracted due to " original data not provided" , and the time of publication and retraction occurred mainly in 2019 (27.41%) and 2021 (41.97%). In addition to the reason " original data not provided" used as search term, the reasons for withdrawal were mainly data and image problems caused by scientific data misconduct, and reasons related to the discovery and investigation process of the paper, and these reasons had a strong co-linear relationship. Besides, the 4 disciplinary of biology-cellular, biology-cancer, genetics, medicine-oncology also had a strong co-linear relationship.Conclusions:It is necessary to incorporating scientific research data management into the scientific research code of conduct, strengthen the training on the code of conduct for original scientific research records keeping, establish the scientific research data review mechanism, and promote the prevention and governance of scientific research data misconduct in the biomedical field.

Objective:To analyze the main related factors for undertaking the NSFC project among the in-service master and doctor in a third-grade First-class hospital in 2020.Methods:By collecting and comparing the age of the target population, the type of education and degree, SCI papers publication and experience as principal investigator of scientific research projects and other variables, the factors affecting the commitment of the NSFC project were analyzed.Results:A total of 743 feedbacks from the people with master′s degree and doctor′s degree in this survey, 69 of whom had undertaken the NSFC project (accounting for 9.3% of the total number). By the univariate analysis, age, education, age more than 55 years old, professional Dr. and academic Dr., published SCI paper publication, JCR1/JCR2/JCR3/JCR4 publication and experience as principal investigator of scientific research project should significantly improve the opportunity of undertaking the NSFC project. The multivariate analysis results show that the main factors influencing the commitment of the NSFC project are the professional Dr., the academic Dr. and having hosted projects.Conclusions:Professional or academic doctors and experience as principal investigator of scientific research projects have significant advantages in undertaking the NSFC project. Medical institutions should fully consider the advantages of different types of scientific research personnel and make clear their differences in professional fields, in order to develop more targeted programs to improve the capacity for scientific research.

Objective To improve the ethics review process and ethical standards,strengthen the implantation of ethical review of research involving human subject in our hospital.Methods Evaluating the review practice of research involving human subject in our hospital practices,learn and bring in the latest international experiences.Results As China's Ethical Committee is in its initial stage,the regulatory ability is still in defective and insufficient.A healthy and operable ethic review mechanism needs to be perfected gradually along with the practice.Conclusions In the aspect of improving the ethical review work of human subject research,some new methods and ideas were discussed.In addition to strengthen the current organizational system,we should clarify the elements of the review of different types of research and carry out multi level ethical trainings.The establishment of a unified,specific evaluative system,combined with this information platform is continuously monitoring the clinical study.This will ensure the human research projects comply with ethical requirements,and further promote the sustainable development of clinical research.

OBJECTIVE: To explore the diagnostic role of computed tomographic dacryocystography (CTDCG) in lacrimal path damage and provide operative approach guidance for the endoscopic transnasal dacryocystorhinostomy (DCR). METHOD: Twenty-eight cases with lacrimal path damage underwent CTDCG. The following reconstruction techniques including volume rendering (VR), multiple planar reconstruction (MPR), maximum intensity projection (MIP) and three-dimensional reconstruction (3-d R) were done on the real-time workstation. The morphology of dacryocyst, displacement fracture of the lacrimal fossa (FS) and the relationship between the uncinate process (UP) and the FS were observed. The thickness of inner walls of anterosuperior and posteroinferior aspects of lacrimal fossa was measured. RESULT: The morphology of dacryocyst, the displacement fracture of the lacrimal fossa and the block site of the lacrimal passage could be displayed clearly by CTDCG with the following reconstruction techniques including VR, MPR, MIP and 3-d R, 6 cases of canaliculus obstruction, 14 cases of lacrimal sac obstruction, 8 cases of lacrimonasal duct obstruction were showed. Meanwhile the relationship between the UP and the FS could also be showed clear. The average bony thickness of the anterosuperior part of FS was (2.96 +/- 0.30) mm, while the bony thickness of the posteroinferior half was (0.02 +/- 0.005) mm, and the distance between the top and bottom of dacryocyst to the operculum of the middle turbinated (OMT) are (6.80 +/- 1.50) mm, (4.00 +/- 1.80) mm respectively (P < 0.05). CONCLUSION The morphology of dacryocyst, the displacement fracture of the lacrimal fossa, block site of the lacrimal passage and the relationship between the UP and FS can be clearly displayed by CTDCG, which provide operative approach guidance for the endoscopic transnasal dacryocystorhinostomy.
Adolescent ; Adult ; Dacryocystorhinostomy ; Endoscopy ; Female ; Humans ; Lacrimal Apparatus ; diagnostic imaging ; injuries ; Male ; Middle Aged ; Tomography, X-Ray Computed ; methods ; Young Adult

Objective To evaluate the efficacy and indications of salvage liver transplantation for patients with recurrent hepatecellular carcinoma(HCC)after liver resection.MethodsThe clinical data of 35 HCC patients who received salvage liver transplantation after liver resection at the Third Affiliated Hospital of Sun Yatsen University from October 2003 to March 2006 were retrospectively analyzed.All patients were divided into the salvage liver transplantation(SLT)group(n = 19)and extended SLT group(n = 16).Perioperative condition,postoperative complications and prognosis of the 2 groups were compared.The survival rate was analyzed and compared by the Kaplan-Meier method and Log-rank test,respectively.Results The anhepatic phase,ischaemic time,operation time,intraoperative blood loss,packed red blood cell transfusion,fresh frozen plasms transfusion,mobidity and retransplantation rate were(32 ± 9)minutes,(8.0 ± 2.1)hours,(7.6 ± 1.5)hours,2300 ml,8 U,23 U,6/19 and 2/19 in the SLT group,and(34 ± 7)minutes,(7.4 ± 2.3)hours,(7.4 ± 2.0)hours,2750 ml,12 U,20 U,4/16,1/16 in the extended SLT group,respectively,with no significant difference between the 2 groups(t=0.726,-0.804,-0.366,Z=-0.348,-0.549,-0.149,x2 =0.184,0.203,P＞0.05).The perioperative mortality,tumor recurrence rate were 0 and 2/19 in the SLT group,and 4/16 and 9/16 in the extended SLT group,with significant differences between the 2 groups(x2 = 5.363,8.426,P ＜ 0.05).The 1-,3-,5-year cumulative survival rates were 100%,84% and 84% in the SLT group,and 75%,33% and 33% in the extended SLT group.The 1-,3-,5-year tumor-free survival rates were 100%,89% and 89% in the SLT group,and 48%,29% and 19% in the extended SLT group.There were significant differences in the cumulative and tumor-free survival rates between the2 groups(x2 =11.58,19.31,P＜0.05).Conclusions The efficacy of SLT is satisfactory in the treatment of recurrent HCC.The optimal indication for SLT is Milan criteria.

Objective To study the related factors associated with the reversal of posttransplant diabetes mellitus (PTDM) following liver transplantation. Methods The clinical data of 62patients with PTDM in 232 patients receiving liver transplantation (26. 7 %) were retrospectively analyzed and the patients were divided into two groups: patients with transient PTDM (34 cases) and those with persistent PTDM (28 cases). Pre-operative and post-operative variables, including sex,age, body mass index, family history of diabetes, hepatitis B virus infection, pretransplantation fasting plasma glucose, the immunosuppressant regime, FK506 concentration and duration of steroid usage, were analyzed retrospectively. Results The variables, including sex, age, body mass index,family history of diabetes, hepatitis B virus infection, pretransplantation fasting plasma glucose,FK506 concentration at month 1, 3 and 6 after operation, rate of cyclosporine usage and duration of steroid usage had no significant difference between the two groups (P＞0. 05). Compared with the persistent PTDM patients, the transient PTDM patients were characterized by younger age at the time of transplantation (54 ± 8 vs. 42 ± 6 years, P＜0. 05), longer time before the development of PTDM (18 ± 23 vs. 35 ± 42 days, P＜0. 05), and higher rate of mycophenolate mofetil or sirolimus usage (0vs. 8. 9 %, P＜0. 05). Based on a multivariate analysis, age at the time of transplantation was determined as the single independent predictive factor associated with reversal of PTDM following liver transplantation (odds ratio: 1. 312, 95 % confidence interval: 1. 005 - 1. 743). Conclusion Age at the time of transplantation, duration before the development of PTDM and rate of mycophenolate mofetil or sirolimus usage are associated with reversal of PTDM following liver transplantation. Among these factors, age at the time of transplantation is only the single independent predictive factor.

Objective To evaluate the effect of liver transplantation for end-stage autoimmune liver disease (ESALD) and summarize the clinical experience of liver transplantation in the treatment of ESALD.Methods The clinical data of 11 ESALD cases who underwent liver transplantation from September 2003 to July 2009 were analyzed retrospectively. There were 2 males and 9 females ( median age, 44. 2 ± 8. 7years). The indication of liver transplantation was end stage of primary biliary cirrhrosis (8 cases),autoimmune hepatitis (2 cases), and primary sclerosing cholangitis ( 1 case). In all cases, modified piggyback liver transplantation with venacavaplasty was carried out. Postoperatively all patients were treated with immunosuppressive agents including tacrolimus (or cyclosporine A) and prednisone, some patients were treated additionally with mycophenolate mofetil and ursodeoxycholic acid. Results Postoperatively 2patients of primary biliary cirrhosis died, one of lung infection and multiple organ failure on the 5th postoperative day, the other dying of sepsis and graft dysfunction on the 964th postoperative day. Five cases suffered from episodes of acute cellular rejection within 1 month after transplantation and was successfully reversed by strengthened immunosuppressive therapy. Nine patients recovered satisfactorily and with excellent life quality until now. Patients were followed up from 7 months to 62 months with the median follow-up time of 38 months. The recipient survival rate at 1 year and 3 years was 91% and 82% ,respectively. One patient has now survived for 5 years. No recurrent ALD case was found during follow up.Conclusions Orthotopic liver transplantation is an exclusive treatment for ESALD. Optimum operation timing and effective immunosuppressive treatment are very important for decreasing occurrence of complications.

Objective To investigate the indications, complications and survival results of combined liver-kidney transplantation. Methods From Oct 2003 to Dec 2008, the clinical data of 13 patients who underwent combined liver-kidney transplantation (CLKTs) were retrosptiverly analyzed in our institution. The perioperative mortality rate, complications and the result of follow-up were analyzed.Results The perioperative mortality rate (within 30 days) was 30.8% (4/13). Postoperative complications included intrabdominal bleeding in 4 patients ( 30. 8% ); pulmonary infection in 7 patients (53.8%); acute renal rejection in one (7. 7% ). Survivors were followed up from 4.4 to 60 months, with the median time of 40 months. Eight patients have survived more than 1 year; six patients have survived more than 2 years; five of them have survived for more than 3 years; and three of them have survived for more than 4 years, with one surviving for more than 5 years. One patient had undergone liver transplantation ( case 2 ) and two patients had had kidney transplantations ( case 3 and case 4 ) before this CLKTs.Postoperatively case 4 died of pulmonary infection and multiple organ failure at day 29, while case 2 and case 4 survived respectively 40 m, 48 m after CLKTs. Conclusions CLKTs is an effective therapy for end-stage liver and kidney disease. CLKTs for patients with irreversible liver and renal insufficiency after initial liver transplantation or kidney transplantation was feasible.