Evidence based medicine essay

It would also consider the totality of homeopathy research in the context of our current understanding of patterns of evidence in the medical literature.

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An SBM review would conclude that the scientific basis for the existence of Oscillococcinum is unconvincing to say the least, and actually is rank pseudoscience analogous with N-rays. Homeopathy itself also qualifies as pseudoscience, because it is at odds with our basic understanding of physics and chemistry.

Furthermore, the totality of the homeopathy clinical research is most consistent with a treatment that has no effect. We therefore have an ineffective application of a nonexistent substance. Further, there is no scientific reason to presume that this particularly treatment will be effective for the flu. Finally, the clinical evidence is insufficient unsurprisingly to conclude that the treatment works. Taken as a whole it seems that this treatment has no promise and any further research would be such a waste of resources as to be unethical.


  • Â Shared Decision Making and EBM.
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It is not surprising that advocates of dubious health treatments do not like the concept of plausibility. Katz Katz and other CAM advocates try to present plausibility as a mere bias, one that will turn us away from effective treatment. Katz completely misses the point—plausibility is partly how we know if something works. CAM advocates tend to start with the conviction that their treatments work, and are trying to find scientific justification to help them market their treatment.

I have yet to find a single example of a CAM modality that was abandoned by its advocates due to evidence of lack of efficacy.


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SBM recognizes that clinical evidence is tricky, complicated, and often ambiguous. There is good evidence to support this position. John Ioannidis has published a series of papers looking at patterns in the clinical research. He found that most published studies actually come to what is ultimately the wrong conclusion, with a strong false-positive bias Ioannidis This effect is worsened in proportion to the implausibility of the clinical question.

Simmons et al. In other words, it is possible to manipulate the data, even completely innocently, just by making decisions about how to collect and analyze the data that can achieve a falsely statistically significant result. Individual studies, therefore, should rarely be compelling. Data is only truly reliable when it is independently replicated, especially in a way that eliminates the degrees of freedom. Nuzzo is specifically criticizing over-reliance on P-values, which is the statistical measure of whether or not data is significant and should be taken seriously.

P-values, however, are not as reliable as many assume. A P-value of 0. So even a value that many take as solid evidence is really only a coin flip when you properly understand the statistics. The problem of over-reliance on P-values is further demonstrated by statistician Geof Cummings in a video he posted on YouTube Cummings The NACP is working through state asthma programs to implement those interventions. The authors note 3 necessary actions: linking clinical teams with community resources to address asthma triggers in housing, advocating for better housing and cleaner air, and convincing insurers to reimburse for essential educational and community health services.

We suggest that these actions, although necessary, are not sufficient to decrease the burden of asthma at a population level. Although sufficient evidence exists to direct the clinical management of asthma, there is an urgent need to expand the evidence for cost-effective ways to implement medical and behavioral interventions on a large scale and among diverse settings and communities. Moskowitz and Bodenheimer cite reports of successful asthma interventions in several communities. These interventions, although key demonstration projects, are the equivalent of clinical case studies.

Figure 1: Early model of the key elements for evidence based clinical decisions Haynes et al. This model is prescriptive rather than descriptive Haynes et al. In other words, it is a guide about how decisions should be made rather than how they are made. EBM normally asks questions, finds and appraises relevant data, and harnesses that information for everyday clinical practice. With this, there are four steps in EBM:.

It’s Time for Science-Based Medicine

EBM can be learnt by people from different backgrounds and at any point in their careers. Furthermore, these trials are relevant to real world practices as they include strategies for successful implementation Grimshaw et al.

It helps providers make better use of limited resources by enabling them to evaluate clinical effectiveness of treatments and services. EBM has several drawbacks. Firstly, it takes time both to learn and to practice; therefore there needs to be good time management. Also, according to Croft et al. However, EBM also overemphasises RCTs and uses these as criteria in uniquely addressing clinical questions while being ineffective for questions regarding prognosis, diagnosis and adverse effects Borgerson, The main objective here is to identify the most relevant challenges towards the implementation of EBM and discuss its impact on a number of different healthcare environments.

Evidence Based Medicine (EBM) Essay

These environments include:. To overcome or try to reduce these challenges, recommendations will also be provided together with the future plans for EBM in each environment.


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To achieve the above objectives, a thorough literature review will need to be conducted after understanding the meaning, use and arguments for the existence as well as implementation of EBM pros and cons. Upon evaluation of what the research topic entailed and design of the objectives of the report, a literature search was conducted.

RACGP - Evidence based medicine from a social science perspective

This was done following the need to find, select and retrieve relevant studies. In order to achieve this, a systematic review of literature was conducted as described in Appendix 1. After the studies have been selected, a decision has to be made on its retrieval from its respective database Appendix 2. They then need to be analysed and compared for the literature review. EBM is nowadays shown as a basic component of the undergraduate and graduate training of many healthcare professionals.

Arguments can be raised about insisting on a science base, instead of only received wisdom, in clinical training Lohr et al. The guidelines to EBM also serve many educational purposes for other audiences. In this way, they contribute to a better understanding within the body politic about the difficulties of allocating scarce resources to competing purposes Lohr et al. Attention to these issues is greatly increasing in Europe. Thus, those who speak of evidence-based policymaking or evidence-based rationing may have these broad educational and consumer information goals in mind, even though they are likely thinking more of the day-to-day decision making they face Lohr et al.

Overcoming the resistance of clinicians and having adequate support for EBM by senior, clinicians and nursing leadership in order to have effective communication about how to apply guidelines to their daily work is what concerns the challenges to implementation of EBM in hospitals Herman, To learn how to practise EBM is often a long and overwhelming process especially for junior doctors as well as new team members. However, below will be focused primarily on the barriers that individuals who work in the primary care setting face.

As demonstrated by Alastair et al.

renet.tk Respondents also thought that it was best to use evidence-based guidelines or protocols developed by colleagues in order to move from opinion based practice towards EBM Alastair et al. Difficulties in applying evidence in practice because of lack of access to the best evidence and guidelines.