Aim: To assess knowledge, attitude, and practice of graduate physicians toward evidence-based medicine (EBM) and the barriers to the implementation of EBM worldwide. Methods:Relevant databases were searched systematically with appropriate search terms up to September 2017. References of the articles detected by the search were screened for any new articles. Risk of bias was assessed by two independent reviewers. Data were extracted from the full-text articles based on the study summary measures and were collected in a data table.Results: Fifty-seven articles were finally included in this systematic review. The studies were of variable and moderate quality. Based on our results, physicians have a generally positive attitude toward EBM and most of them believe that its implementation improves patient care. However, their self-reported awareness and knowledge regarding EBM concepts and the main databases are generally poor. The major barriers to the practice of EBM were related to patient overload and lack of personal time, knowledge, and skills rather than a lack of facilities and resources. However, this pattern varied among the studies. Most of the physicians in the included studies referred to their colleagues and textbooks to answer most of their clinical questions.Conclusion: Although many physicians have poor EBM knowledge and skills, the majority of them have a positive attitude toward the implication of EBM. To overcome the barriers against the evidence-based practice, it is recommended that appropriate policies be adopted to decrease physicians' workload and to provide them with preappraised evidence. K E Y W O R D S EBM, knowledge, physician, practice 246 wileyonlinelibrary.com/journal/jebm J Evid Based Med. 2018;11:246-251.

In this systematic review, we aimed to assess the efficacy and safety of nonsteroidal anti‐inflammatory drugs (NSAIDs) in treating respiratory tract infections in adults and children. PubMed, Scopus, Web of Science, Cochrane, and Embase databases were searched. A total of 34 randomized clinical trials were included in this systematic review. We assessed the risk of bias of all included studies using the Cochrane tool for risk of bias assessment. The evidence on ibuprofen, naproxen, aspirin, diclofenac, and other NSAIDs were rated for degree of uncertainty for each of the study outcomes and summarized using the grading of recommendations assessment, development, and evaluation (GRADE) approach. Our findings suggest that high‐quality evidence supports the use of NSAIDs to reduce fever in both adults and children. However, the evidence was uncertain for the use of NSAIDs to reduce cough. Most studies showed that NSAIDs significantly relieved sore throat. The evidence for mortality and oxygenation is limited. Regarding the adverse events, gastrointestinal discomfort was more frequently reported in children. For adults, our overall certainty in effect estimates was low and the increase in gastrointestinal adverse events was not clinically significant. In conclusion, NSAIDs seem to be beneficial in the outpatient management of fever and sore throat in adults and children. Although the evidence does not support their use to decrease mortality nor improve oxygenation in inpatient settings, the use of NSAIDs did not increase the rate of death or the need for ventilation in patients with respiratory tract infections. Further studies with a robust methodology and larger sample sizes are recommended.

IntroductionKleine-Levin syndrome is an extremely rare neurological entity characterized by recurrent episodes of hypersomnia which are sometimes associated with compulsive hyperphagia and behavioral changes. Autoimmunity has recently been proposed as a factor contributing to its pathogenesis. Immune thrombocytopenic purpura is a relatively common autoimmune disease showing a lot of complexity and uncertainty regarding its treatment regimens and its refractory nature in some cases.Case presentationA 32-year-old Persian White man visited his private hematologist complaining of recent episodes of epistaxis and appearance of petechial lesions 24 hours after receiving a meningococcal vaccine. He had a history of immune thrombocytopenic purpura 13 years before his presentation. Based on his history and laboratory findings, his condition was diagnosed as a relapse of immune thrombocytopenic purpura and was managed accordingly. He did not respond to first-line corticosteroid regimens and later developed neurological symptoms as recurrent episodes of hypersomnia and hyperphagia. After a complete clinical and paraclinical evaluation and ruling out other possible conditions, he was given a diagnosis of Kleine-Levin syndrome. He was followed up for his immune thrombocytopenic purpura and received different treatment regimens none of which were adequately successful except intravenous immunoglobulin that was only temporarily effective. He has had 4 documented self-limited episodes of Kleine-Levin syndrome since his initial presentation.ConclusionsImmune thrombocytopenic purpura may be associated with meningococcal vaccination in adulthood. Responses to treatment in immune thrombocytopenic purpura vary among patients. Our patient only had a transient acceptable response to intravenous immunoglobulin while all other options failed to improve his platelet count. Concurrence of immune thrombocytopenic purpura and Kleine-Levin syndrome supports the role of autoimmunity as the proposed pathophysiological mechanism of Kleine-Levin syndrome.

Propose This study aims to systematically review the randomized controlled trials that address the effectiveness and safety of herbal medicine in patients with type 1 diabetes. Methods The Cochrane Library (latest issue); MEDLINE (until recent); EMBASE (until recent); AMED (Allied and Complementary Medicine Database) (until recent); and CINHAL (until recent) were searched electronically for the identification of trials until October 2019. Articles were initially screened based on title and abstract and then by full text by two independent authors. References of retrieved studies were hand-searched for further studies. Risk of bias was assessed according to the Cochrane handbook of systematic reviews of interventions. The results were summarized into GRADE (grading of recommendations, assessment, development and evaluation) tables. No meta-analysis was applicable as only one study was found for each intervention. Results Four RCTs were finally included in the systematic review with an overall moderate quality of conduct and low quality of reporting. The sample sizes were very small. The results of these RCTs show that cinnamon pills and Berberine/Silymarine compound capsules may decrease blood glucose indices from baseline, while fenugreek seeds and fig leaf decoction do not show any statistically significant effect. Conclusions The evidence is scarce and no recommendations can be made based on current evidence. Further trials with more rigorous methodology and stronger quality of reporting are needed to make conclusions.

Treatment with tumor necrosis factor alpha inhibitors has been increasingly implicated in the management of autoimmune diseases. In spite of their promising effects, they are commonly associated with side effects. This issue indicates the need for newer drugs with the same efficacy and fewer serious adverse effects. Pentoxifylline is a phosphodiesterase which inhibits TNF secretion and exerts to some degree an anti-inflammatory effect. The purpose of this randomized clinical trial was to evaluate the effect of pentoxifylline as an adjunctive therapy in the management of ankylosing spondylitis. Twenty-five patients suffering from ankylosing spondylitis were randomly assigned to treatment or placebo groups having been matched for age and gender. The treatment group received pentoxifylline (1200 mg daily), and the placebo group received a placebo in addition to the standard treatment of sulfasalazine 2-3 gram daily and indomethacin 50-75 mg per day that were given to all the patients in both groups. Serum levels of TNF-α were measured before and after the study intervention. Serum levels of TNF-α were reduced significantly in both groups with a p-value of < 0.001. However, the reduction was more prominent in the group receiving pentoxifylline than in the placebo group, although this between-group difference was not statistically significant. The results demonstrate the need for further studies on the use of pentoxifylline as a safe adjunctive therapy in controlling disease activity and reducing tumor necrosis factor-alpha levels in patients with ankylosing spondylitis.

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The patient is a 33-year-old Iranian woman without a significant past medical history with the full range of narcolepsy symptoms that started within two weeks after her recovery from COVID-19. Sleep studies revealed increased sleep latency and three sleep-onset rapid eye movement events, compatible with a narcolepsy-cataplexy diagnosis.

A 64-year-old man presented with asymmetric paresthesia and subsequent weakness of his feet and a 10-kg weight loss over 40 days. Electrodiagnostic studies revealed distal axonal sensory-motor polyneuropathy with ongoing axonal loss. A peroneal nerve biopsy showed intravascular proliferation of CD-20 positive lymphocytes, which suggested intravascular large B-cell lymphoma.