Objective To compare the efficiency of epidermis cell culture between big graft method and small strip method. Methods The big graft method was to cut the skin tissue reticularly from dermis layer while the epidermis were not cut off. After it was digested fully in trypsin, theepidermis was separated from skin and was used to culture epidermal cells. The small strip method was routine. The time to cut the skin and to separate the epidermis was recorded, and the number and quality of cells were compared between two methods. Results It took 8-10 minutes to cut an area of 5 cm2 skin into small strips and 1-2 minutes into big grafts. It took 10-15 minutes to separate the epidermis from the same area skin by small strip method and 2 minutes by big graft method. The cells showed better vigor and its number was more by big grafts than by small strips.The chance of fibroblast contamination was reduced obviously. Conclusion The big graft method is simpler than the small strip method and can culture more epidermis cells with less chance of fibroblast contamination.
ObjectivesTo provide an overview of whether the clinical decision support system (CDSS) was effective in reducing medication error and improving medication safety and to assess the quality of available scientific evidence.MethodsPubMed, EMbase, The Cochrane Library, CBM, WanFang Data, VIP and CNKI databases were electronically searched to collect systematic reviews (SRs) on application of clinical decision support system in the medication error and safety from January, 1996 to November, 2018. Two reviewers independently screened literature, extracted data and then evaluated methodological quality of included SRs by using AMSTAR tool.g AMSTAR tool.ResultsA total of 20 SRs including 256 980 healthcare practitioners and 1 683 675 patients were included. Specifically, 16 studies demonstrated moderate quality and 4 demonstrated high quality. 19 SRs evaluated multiple process of care outcome: 9 were sufficient evidence, 6 were limited evidence, and 7 were insufficient evidence which proved that CDSS had a positive effect on process outcome. 13 SRs evaluated reported patient outcomes: 1 with sufficient evidence, 3 with limited evidence, and 9 without sufficient evidence.ConclusionsCDSS reduces medication error by inconsistently improving process of care measures and seldom improving patient outcomes. Larger samples and longer-term studies are required to ensure a larger and more reliable evidence base on the effects of CDSS intervention on patient outcomes.
Objective To evaluate the quality of Chinese literatures on the methodology of D-dimer diagnostic test. Method We searched CNKI (1994 to 2006) and CBM (1978 to 2006) for articles involving the diagnostic tests of D-dimer for coagulation disorders. Result A total of 63 relevant articles were retrieved and 7 were included in our review. Only one of these provided useful data on two two table for the evaluation of diagnostic accuracy. Conclusions Few studies on the diagnostic tests of D-dimer have been performed and publ ished in China, all of poor quality. Further studies should focus on clinical diagnostic sensitivity and specificity, so as to provide more valuable information for readers.
Objective To explore the methods used for developing evidence-based clinical practice guidelines for acupuncture. Methods Based on the characteristics of acupuncture in traditional Chinese medicine,and principles of evidence-based medicine, this article introduces and summarizes the processes and methods for developing an evidence-based clinical practice guideline for acupuncture. We analyzed similarities and differences between clinical practice guidelines for acupuncture and for other interventions. We used an evidence-based clinical practice guideline of acupuncture for depression as an example to illustrate the methods of literature search, grading of evidence and recommendations, evidence evaluation and consensus formation. Results Preliminary recommendations on the methods for developing evidence-based clinical practice guidelines for acupuncture were made. Conclusion Based on the optimized rational methodology for developing clinical guidelines, evidence-based high-quality clinical practice guidelines for acupuncture could be established.
The Core Outcome Measures in Effectiveness Trials (COMET) Working Group has published a series of research and reporting guidelines related to core outcome sets since it was established. This article introduces and interprets the Core Outcome Set-STAndardised Protocol Items: the COS-STAP Statement which is developed by the COMET and published in February 2019. It will then be compared with Core Outcome Set-STAndards for Reporting (COS-STAR) and Core Outcome Set-STAndards for Development (COS-STAD), which have been introduced to China. The significance of these guidelines for the development of core outcomes in the field of traditional Chinese medicine is discussed, so as tp draw researchers' attention to this area.
Objective To systematically review the requirements of patient participation in clinical practice guidelines (CPGs) in Chinese and foreign guideline development manuals. Methods Thirty-six authoritative society websites and guideline databases and 5 commonly used databases were searched online. Relevant information on patients’ participation in the guideline manuals was collected, summarized, and analyzed. Results A total of 37 manuals (33 foreign and 4 Chinese) were included. The requirements for the number of patients, the right to speak, status equality, and the right to vote in the guideline development manual accounted for 35.1%, 13.5%, 8.1%, and 5.4%, respectively. The requirements for participants’ mode of participation were not mentioned in the guideline development manuals from 2000 to 2010. There were 6 (16.2%) in 2011–2015 and 12 (32.4%) in 2016–2022. The comprehensive guidelines for multiple disease types accounted for 35.7%, 28.6%, and 57.1%, respectively, in terms of requirements for participants’ knowledge or experience, management of specialized personnel, and training support. The specific guidelines for a certain type of disease or drug accounted for 21.7%, 4.3%, and 17.4%, respectively; fifteen (40.5%) guideline development manuals mentioned the specific collection forms of patients’ values and preferences in guideline development. Conclusion Given changes to medical models and the emphasis on patients’ rights and interests, an increasing number of manuals have proposed requirements that consider the expression of patients’ values and preferences in manual development, and the dimensions of manual development are constantly enriched. However, manuals outlining the requirements of patient participation are still not comprehensive and can continue to improve.
Currently, the recommendations of the clinical practice guidelines related to acupuncture in China and abroad are opaque to the source of the acupuncture prescription, there is a lack of comprehensive evaluation of the rationality of the acupuncture prescription, and the standards for the selection of the acupuncture prescription are opaque and nonstandard, and the writing and reporting details are insufficient, thus affecting the clinical applicability of the guidelines. To a certain extent, the utilization rate of the recommendations of the guidelines is low. This paper discusses the origin, rationality comprehensive evaluation, priority selection, writing and reporting of acupuncture prescriptions, and puts forward detailed methodological suggestions, to provide guidance makers of methodological optimization thoughts and suggestions for the evaluation, selection and writing of acupuncture prescriptions in the recommendations.
This is the second paper in the evidence-based medicine glossary series. It provides information on
the principles for evidence-based medicine through definitions, criteria for inclusion and screening, regular flow-sheet,
reporting format and the establishment of databases.
As precision medicine continues to gain momentum, the number of predictive model studies is increasing. However, the quality of the methodology and reporting varies greatly, which limits the promotion and application of these models in clinical practice. Systematic reviews of prediction models draw conclusions by summarizing and evaluating the performance of such models in different settings and populations, thus promoting their application in practice. Although the number of systematic reviews of predictive model studies has increased in recent years, the methods used are still not standardized and the quality varies greatly. In this paper, we combine the latest advances in methodologies both domestically and abroad, and summarize the production methods and processes of a systematic review of prediction models. The aim of this study is to provide references for domestic scholars to produce systematic reviews of prediction models.
