Objective To collect evidence of treatment for the patients with ocular myasthenia gravis. Methods We searched The Cochrane Library (Issue 1, 2010), PubMed (1966 to April, 2010), CNKI (1979 to April, 2010) and VIP (1989 to April 2010) to identify systematic reviews, randomized controlled trials, controlled clinical trials and prospective avaicohort studies about efficacy and safety of treatment for ocular myasthenia gravis. Results We identified 2 guidelines, 5 systematic reviews and 4 observational studies on inhibitor of acetylcholinesterase, immunosuppressive agents, intravenous immunoglobulin, corticosteroids, and thymectomy for ocular myasthenia gravis. The first choice for ocular myasthenia gravis was inhibitor of acetylcholinesterase. When the symptom could not be remitted, the corticosteroids should be considered. Immunosuppressive agents might be added if the effect of corticosteroids was not good. Plasma exchange was not recommended. Thymectomy should be performed if the patients suffered from thymoma. Conclusion The best clinical evidence can be available by the evidence-based method.
Patients with early Parkinson＇s disease should be treated rationally in order to improve their quality of life and reduce the motor complications. The early employment of drugs which provides sustained central dopamine agonism and dopaminergic neuroprotection may reach this aim to some extent. Evidence of effective therapy in early Parkinson＇s disease will be introduced including： dopamine agonists, monoamine oxidase inhibitor 13, coenzymeQ10, L-dopa and a gait training.
Objective To find the most effective treatment for a patient with difficult selective biliary cannulation (DSBC) during endoscopic retrograde cholangiopancreatography (ERCP) by EBM practice. Methods Evidence was retrieved from The Cochrane Library (Issue 1, 2010), ACP online, NGC (1998 to June 2010), PubMed (1950 to June 2010), and CBM (1994 to June 2010). The collected evidence was then graded. Results After preliminary research, we identified 18 relevant articles. The evidence showed that pre-cutting technique could increase cannulation success rates in DSBC and was safe, effective, and time-saving for an experienced endoscopist. Pancreatic duct occupation was easier to perform than pre-cutting technique and could also increase selective cannulation success rates in DSBC. According to the evidence, together with endoscopist’s experience and the preference of the patient and his family, needle-knife precut papillotomy was performed. Successful selective biliary cannulation was accomplished after pre-cutting. Conclusion The current evidence suggests that pre-cutting technique and pancreatic duct occupation could increase selective cannulation success rates in DSBC. Patients’ condition and endoscopist’s experience should be considered properly before the operation.
Evidence-based psychotherapy is an idea and performance reform in the clinical practice of psychology which is influenced by evidence-based medicine. It proposes to integrate the best available evidence provided by researchers, the clinical expertise of practitioners, and the patient’s characteristics, cultures and preferences, so as to achieve the best treatment. The development of evidence-based psychotherapy can be divided into two stages: empirically supported treatments and evidence-based practice. This paper reviews existing problems as well as developing tendencies.
Objective To evaluate the effect of vitamin A (Vit A) supplementation on the morbidity and mortality in children with infectious diseases. Methods We searched Cochrane Library (Issue 1, 2004), MEDLINE (1966-2004.3) and The PedsCCM Evidence-Based Journal Club (1992-2002). Relevant systematic reviews and randomized controlled trials (RCTs) of Vit A supplementation on morbidity and mortality in children with infectious diseases were obtained. Results We collected 107 studies and identified 13 systematic reviews or RCTs. The evidence showed that the effect of Vit A supplementation on morbidity and mortality was affected by the nutritional status of the children. Vit A supplementation given to Vit A deficient children could reduce the morbidity of diarrhea and mortality of measles. However, Vit A supplementation would increase the morbidity of diarrhoea and respiratory infections in children with sufficient nutrition. Conclusions The nutritional status of children correlates with morbidity and mortality of some infectious diseases, and the nutritional status and serum Vit A level should be evaluated before Vit A supplementation applied.
Objective To investigate problems in applying clinical epidemiology and evidence-based medicine in the field of dentistry in China. Method In early April of 2001, about 200 copies of a questionnaire were sent to chief editors of dental journals, directors and famous experts of the university dental schools and/or dental departments of the provincial/metropolitan hospitals located in the mainland of China. The sent back questionnaires were summarized and analysized. Results At the end of June, 2001, 40 replies from the experts of 12 universities and one metropolitan dental hospital were received. The main points are summarized as following: EBM in China is at starting stage of "anti-illiteracy" campaign. There are 6 out of 12 universities having delivered clinical epidemiology courses to postgraduates (2 to undergraduates), only 3 added lectures on evidence-based medicine to dental students and/or professionals, only one university held intensive training courses on EBM to clinicians. In dental practice there are still scram dentists making decisions simply by experiences. In the research practice some dentists are eager for quick success, and instant benefits, ignoring, scientific design aid quality control of the studies. Randomized controlled clinical trials are seldom appeared in Chinese dental journals. To popularize EBM in all dental clinicians is important for them to use and produce the best evidences. Conclusions EBM in dental field of China is at starling stage. Collection and dissemination of best dental evidences in dental professionals is a key to raise the dental care levels in China.
Although anaphylaxis induced by vitamin K1 seldom happens, 4 allergic cases were observed in the patients we treated recently who were given intramuscular injection of vitamin K1 before renal biopsy. To provide the best clinical evidence, we searched MEDLINE （-May 2005） and evaluated the studies. The studies were only case reports and retrospective reviews which showed the anaphylaxis were mainly allergic dermatitis with different manifestation and reaction time. The serious reactions such as allergic shock was very rare. We conclude that although vitamin K1 anaphylaxis is rare, strict indications should be followed and the drug surveillance on adverse events should be strengthened.
Evidence-based dentistry has been established for more than a decade, and described as ‘the conscientious, explicit and judicious use of current best evidence in making decisions about the care of individual patients＇. However, Orthodontic clinicians in China still tend to base their treatment protocols on the ‘it works in my hands＇evidence provided by their peers, mainly due to their weak experience in searching and applying clinical evidences. In this article, authors are willing to share their experience with their Chinese peers, and to promote the dissemination and application of evidence-based orthodontics in clinical practice.
①关于药物引起的卵巢抑制:1篇系统评价发现,使用卵巢抑制药治疗子宫内膜异位症与安慰剂或达那唑相比,妊娠率无明显差异.该评价还发现,卵巢抑制药引起的不良反应包括体重增加、潮热和骨质疏松症,达那唑可能引起剂量相关的体重增加和雄激素样作用. ②宫腔内人工授精+促性腺激素:1个RCT发现,宫腔内人工授精+促性腺激素治疗与不治疗相比,可明显提高活产率.第2个RCT发现,期待疗法与宫腔内人工授精+垂体降调节+促性腺激素治疗后的分娩率无明显差异.第3个RCT发现,宫腔内人工授精+促性腺激素治疗与单用宫腔内人工授精相比,仅明显提高妊娠率. ③体外受精:我们没有找到关于子宫内膜异位症引起不孕妇女接受受精体外治疗的RCT. ④手术治疗:两个比较腹腔镜手术与诊断性腹腔镜的RCT发现,在妊娠率和活产率方面结论不一.