crp 4.3 crp4 searching 2010

8/13/2019 CRP 4.3 Crp4 Searching 2010

http://slidepdf.com/reader/full/crp-43-crp4-searching-2010 1/27

Internet Basics searching for medical information



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



The Evidence Pyramid



Tergantung atas pertanyaan dan jawabanyang ingin dicari

– Penyakit, penyebab, pengobatan, diagnosis dsb.

Community Department



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.



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.



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



Community Department



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)

http://www.pubmed.org/

http://www.bmj.com/

http://www.nejm.com/

http://www.nejm.com/

http://www.bmj.com/

http://www.pubmed.org/



British Medical Journal

www.bmj.com



.PDF file

(Open using Adobe Acrobat)



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



Boolean Logic

21

ND



Boolean Logic

22

OR



Boolean Logic

23

NOT



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



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



Can medical practice

be evidence based?

crp 4.3 crp4 searching 2010

Documents