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Internet Basics searching for medical information
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Introduction
During the last 20 years, the Internet hasexploded on the computer scene as a topic ofinternational interest
Computer networks initially reserved forscientists, governments, and educationalinstitutions have become available tocorporations (large/small) and even individualusers
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The Evidence Pyramid
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Tergantung atas pertanyaan dan jawabanyang ingin dicari
– Penyakit, penyebab, pengobatan, diagnosis dsb.
Community Department
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Medical information …. (1)
One solution for the problem of obsolescence of professionaleducation is “problem-based learning” or “learning by inquiry”. – confronted by a clinical question ( unsure of the current best answer),
we need to develop the habit of looking for the current best answer asefficiently as possible.
The success of learning by inquiry depends heavily on – being able to find the current best evidence to manage pressing clinical
problems
– a task that can be either quick and highly rewarding or time -consuming and frustrating.
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Medical information …. (2)
How to find current best evidence,formulate …. – the key question to seek an answer
– the best answer to the clinical problem that youcurrently have stored in your brain (being asquantitative as possible)
– the evidence resources (both traditional andavant-garde) that you would consult to find best
current answers.
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Clinical problem
Define important,
searchable question
Select most
likely resource
Design searchstrategy
Summarize
the evidence
Apply
the evidence
Design searchstrategy
Summarize
the evidence
Select second most
likely resource
Poor
yield
Generalsearch
strategy
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Community Department
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Where to start?
PubMed: www.pubmed.org
BMJ: www.bmj.com
New England Journal of Medicine:
www.nejm.com Other search portals or journal websites (freeor by subscription)
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British Medical Journal
www.bmj.com
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.PDF file
(Open using Adobe Acrobat)
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Search strategies
Feature Key Explanation
Truncation * Or $ Analy* = analysis, analytic, analytical, analyse, etc
Exact phrase “ “ Words must be adjacent to each other
“heart attack”
Wildcard ? Gyn?ecology = gynaecology, gynecology
Randomi?* = randomisation, randomization,randomised
Boolean AND Article must include both terms
OR Article can include either term
NOT Exclude article containing the term
Exp: econom* NOT economy
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Boolean Logic
21
ND
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Boolean Logic
22
OR
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Boolean Logic
23
NOT
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Searching steps
1. Define the clinical question(remember: P-I-C-O)
2. Extract keywords from the question
3. Determine a search strategy4. Evaluate search results
5. Revise search strategy (if needed) based on
above results
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In under-five year old children, does an elevatedreticulocyte count (compared to normal reticulocytecount) increase the likelihood of iron deficiencyanemia?
Keywords:
reticulocyte AND “iron deficiency anemia” AND
diagnostic test
Limit search by age: ch ild ren (<5 years )
Example - Diagnosis
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Can medical practice
be evidence based?