首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到10条相似文献,搜索用时 78 毫秒
1.
周博达  侯超  吴立玲 《现代生物医学进展》2007,7(11):1744-1746,1737
循证医学(evidence-based medicine,EBM)是近年来国际临床医学领域迅速发展起来的新学科,强调"为每位病人作出医疗决定时,应明确而仔细地使用现有的最好证据"。本文利用循证医学的方法,参照若干著名的大规模多中心的随机对照试验(ran- domized controlled trial,RCT)来评估目前几类临床常用药物在治疗慢性充血性心力衰竭中的作用,试图找出针对不同NYHA等级患者的最佳治疗建议。  相似文献   

2.
In addition to proper cleansing, debridement and local wound care, foot infections in diabetic patients require carefully selected antibiotic therapy. Serious infections necessitate hospitalization for initial parenteral broad-spectrum antibiotic therapy. Appropriately selected patients with mild infections can be treated as outpatients with oral (or even topical) therapy. Initial antibiotic selection is usually empirical, but definitive therapy may be modified based on culture results and the clinical response. Therapy should nearly always be active against staphylococci and streptococci, with broader-spectrum agents indicated if Gram-negative or anaerobic organisms are likely. In infected foot tissues levels of most antibiotics, except fluoroquinolones, are often subtherapeutic. The duration of therapy ranges from a week (for mild soft tissue infections) to over 6 weeks (for osteomyelitis). Recent antibiotic trials have shown that several intravenously or orally administered agents are effective in treating these infections, with no one agent or combination emerging as optimal. Suggested regimens based on the severity of infection are provided.  相似文献   

3.
【目的】针对现有大帛斑蝶Idea leuconoe(Eriehson)饲养方法中无法有效回避高温造成的成虫大量死亡,卵空壳或干瘪失水的问题,本研究发明了一种新的繁殖网纹室来规模化人工饲养大帛斑蝶的方法。【方法】本研究测定了在新发明和普通繁殖网纹室的饲养下,大帛斑蝶的存活、交配成功率、产卵量和卵孵化率,并对新发明和普通繁殖网纹室之间的参数进行了对比。【结果】采用新发明繁殖网纹室饲养的大帛斑蝶幼虫化蛹率为90.75%±1.12%,蛹羽化率为91.36%±2.43%,均维持在90%以上,均极显著高于普通繁殖网纹室;从幼虫发育到成虫的存活率为82.93%±2.55%,也极显著高于普通繁殖网纹室;在15日龄内,相对于普通繁殖网纹室,新发明繁殖网纹室饲养的存活的成虫,取食频率较高,活跃性较高,虫体比较健壮,且此时成虫存活率显著较高,为81.22%±2.07%;利用新发明繁殖网纹室饲养的成虫,其雌蝶交配成功率为81.67%±4.77%,每雌产卵量为(269.32±9.85)粒,卵孵化率为85.88%±1.93%,均极显著高于普通繁殖网纹室;本研究新发明的繁殖网纹室,可以有效的营造一个温度显著低于空气温度的小环境,供大帛斑蝶躲避高温灼伤。【结论】通过在本研究新发明繁殖网纹室的饲养,大帛斑蝶存活率、交配成功率和繁殖力均维持在较高的水平上,显著高于普通繁殖网纹室,能够保证为市场提供充足的大帛斑蝶虫源,避免农民养殖户的损失。  相似文献   

4.
The objective was to evaluate deficits and differences of published literature on reproduction in cattle, horses, and dogs. A literature search was conducted in the databases Medline and Veterinary Science. Approximately five times more articles on clinical bovine reproduction (n = 25 910) were found compared to canine (n = 5 015) and equine (n = 5 090) reproduction. For the evaluation of the literature, a checklist was used. A subset of 600 articles published between 1999 and 2008 was randomly selected. After applying exclusion criteria, a total of 268 trials (86 for cattle, 99 for horses, and 83 for dogs) were evaluated and used for further analysis. For the field of canine and equine reproduction, there were fewer clinical trials with a control group compared to bovine reproduction (cattle 66%, horses 41%, and dogs 41%). For all three species investigated, few publications were identified (4%) with the highest level of evidence, i.e., controlled, randomized, and blinded trials, or meta-analyses. In cattle 33% of the publications were graded adequate to draw sound conclusions; however, only 7 and 11% were graded adequate in dogs and horses, respectively. Therefore, the veterinarian should always assess the quality of information before implementing results into practice to provide best available care for the animals. In conclusion, improvement of the quality of well-designed, conducted and reported clinical trails in animal reproduction is required.  相似文献   

5.
In this paper I draw on the French philosopher Michel Foucault for a viewpoint on aspects of EBM. This means that I develop his idea of the spaces occupied by disease. I give much of the paper to only one of these spaces, the space of perception of disease, in order to major on the medical gaze, one of Foucault’s best-known contributions to the philosophy of medicine. As I explain what I mean by each of the spaces of disease, I configure EBM into this space. The conscientious, explicit, and judicious use of current best evidence in making decisions about the care of individual patients. Evidence-based clinical practice requires integration of individual clinical expertise and patient preferences with the best available external clinical evidence from systematic research and consideration of available resources. EBM can be considered a subcategory of evidence-based healthcare, which also includes other branches of health-care practice such as evidence-based nursing or evidence-based physiotherapy. EBM subcategories include evidence-based surgery and evidence-based cardiology (Guyatt et al. 2008, 783).  相似文献   

6.
7.
目的:评价中药治疗甲状腺功能亢进症的有效性及安全性。方法:计算机检索关于中药治疗甲亢的人体临床试验研究文献,选择从1980年1月至2014年1月符合要求的随机对照试验(RCT)和临床对照试验(CCT)的文章,并按排除原则进行筛选,利用Cochrane手册进行文献质量评价,利用RevMan 5.2软件进行Meta分析。结果:共纳入16篇随机对照试验,所有文献入组患者合计702例,有效661例,对照组合计590例,有效462例。Meta分析结果显示,中药治疗亚急性甲状腺炎与单纯西药治疗比较总有效率(治愈率+好转率)的差异有统计学意义[OR=0.22,95%CI(0.15,0.33),P<0.01]。结论:采用中药治疗亚急性甲状腺炎的总有效率和治愈率明显优于单纯使用西药。  相似文献   

8.
AimTo assess the role of the young radiation oncologist in the context of important recent advancements in the field of radiation oncology, and to explore new perspectives and competencies of the young radiation oncologist.BackgroundRadiation oncology is a field that has rapidly advanced over the last century. It holds a rich tradition of clinical care and evidence-based practice, and more recently has advanced with revolutionary innovations in technology and computer science, as well as pharmacology and molecular biology.Materials and methodsSeveral young radiation oncologists from different countries evaluated the current status and future directions of radiation oncology.ResultsFor young radiation oncologists, it is important to reflect on the current practice and future directions of the specialty as it relates to the role of the radiation oncologist in the comprehensive management of cancer patients. Radiation oncologists are responsible for the radiation treatment provided to patients and its subsequent impact on patients’ quality of life. Young radiation oncologists must proactively master new clinical, biological and technical information, as well as lead radiation oncology teams consisting of physicists, dosimetrists, nurses and technicians.ConclusionsThe role of the young radiation oncologist in the field of oncology should be proactive in developing new competencies. Above all, it is important to remember that we are dealing with the family members and loved ones of many individuals during the most difficult part of their lives.  相似文献   

9.
成人急性感染性腹泻治疗新进展   总被引:1,自引:0,他引:1  
成人急性感染性腹泻与儿童感染性腹泻在发病率、严重程度、预后等方面有所不同,其治疗以补液、止泻为主,必要时使用抗微生物药物。近年来,成人急性感染性腹泻在补液治疗和益生菌、新止泻药物应用等方面更新了一些新的循证医学证据,在进一步确保现有药物安全性的同时促进了腹泻治疗思路与手段的发展。  相似文献   

10.
Both pharmacotherapy and behavioural treatment are required to relieve the symptoms of addictive disorders. This paper reviews the evidence for the benefits of pharmacotherapy and discusses mechanisms where possible. Animal models of addiction have led to some medications that are effective in reducing symptoms and improving function but they do not produce a cure. Addiction is a chronic disease that tends to recur when treatment is stopped; thus, long-term treatment is recommended.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号