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Evidence-based medicine - a new approach to teach medicine: a basic review for beginners

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Author(s): Sanchaya Selvaraj

Journal: Biology and Medicine
ISSN 0974-8369

Volume: 2;
Issue: 1;
Start page: 1;
Date: 2010;
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Keywords: Evidence-based medicine | electronic searching | appraisal | clinical management | patients | scientific evidence

ABSTRACT
No clinician would consider entering clinical practice without knowing the rudiments of history-taking and physicalexamination, nor would clinicians consider independent practice without a basic understanding of how the drugs theyprescribe act on their patients. Yet, traditionally, clinicians have started practice without an ability to understandevidence about how they should interpret what they find on history and physical examination, or the magnitude of theeffects they might expect when they offer patients medication. Evidence-based medicine (EBM) provides a remedyfor this problem. Our Aim of this article is to introduce EBM to the beginners. Evidence-based medicine is theintegration of best research evidence with clinical expertise and patient values. The EBM approach seeks to applyevidence from rigorous clinical research to the care of individual patients and has been defined as the ‚Äúconscientiousexplicit and judicious use of current best evidence in making decisions about the care of individual patients‚ÄĚ. Itconsists of five related steps. Step 1: Asking focused clinical questions that arise in caring for patients. Step 2:Acquiring the best available evidence through electronic searching. Step 3: Appraising the quality of the evidenceacquired against explicit methodological criteria. Step 4: Applying the evidence appropriately to the clinicalmanagement of individuals. Step 5: Assessing performance in relation to the previous four steps. 1) Universal to thepractice of medicine 2) Shortage of coherent, consistent scientific evidence 3) Difficulties in applying evidence to thecare of individual patients 4) Barriers to the practice of high-quality medicine 5) The need to develop new skills 6)Limited time and resources.
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