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OVID MEDLINE

OVID MEDLINE. EBM (Evidence-based Medicine) 以證據為基礎的醫學. 實證醫學乃是從龐大的醫學資料庫中搜尋相關文獻,並以流行病學及統計學方法過濾出值得信賴的文獻,再經過嚴格評讀及綜合分析後,將所獲取之最佳研究證據 (evidence) 、臨床經驗 (experience) 及患者期望 (expectation) 相互整合,配合診療情境後制定出一套最佳的臨床醫療決策,並可用來協助醫護人員進行終身學習。. Not only a skill but also an attitude change

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OVID MEDLINE

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  1. OVID MEDLINE

  2. EBM (Evidence-based Medicine) 以證據為基礎的醫學 實證醫學乃是從龐大的醫學資料庫中搜尋相關文獻,並以流行病學及統計學方法過濾出值得信賴的文獻,再經過嚴格評讀及綜合分析後,將所獲取之最佳研究證據 (evidence) 、臨床經驗 (experience) 及患者期望 (expectation) 相互整合,配合診療情境後制定出一套最佳的臨床醫療決策,並可用來協助醫護人員進行終身學習。 Not only a skill but also an attitude change for everyone in hospitals

  3. 臨床決策模型 J Am Med Inform Assoc. 1997 Jul-Aug;4(4):266-78. Elson RB, Faughnan JG, Connelly DP

  4. 實證醫學三大要素 Evidence EBM Experience Expectation

  5. 臨床問題從哪裡來? • 臨床發現 ( clinical findings ) • 病因 ( etiology ) • 疾病的臨床表徵( clinical menifestations of diseases ) • 鑑別診斷與診斷檢查 ( DDx & diagnostic test ) • 治療 ( therapy) • 預後 ( prognosis ) • 預防措施 ( prevention ) • (生病)的經驗與意義 ( experience & meaning ) • 自我學習發展的過程 ( self-improvement )

  6. 臨床問題的種類 • Therapy/Prevention:治療/預防的問題 • 研究治療或預防方法的有效性 • 例如:服用“阿斯匹林”是否可以預防中風? • Diagnosis:診斷問題 • 研究檢查方法或臨床表徵對疾病診斷的有效性 • 例如:McBurney’s sign 診斷急性盲腸炎的敏感度及特異度為何? • Harm/Etiology:危害/病因問題 • 研究暴露的危害或疾病的原因 • 例如:停經婦女使用荷爾蒙治療是否會增加乳癌的機會? • Prognosis:預後 • 建立疾病預後的預測模式 • 例如:利用Ranson’s criteria 預測急性胰臟炎死亡率為何? • 例如: In healthy women who have recently had a miscarriage(流產), what is the usual grieving(悲傷) process and are any factors associated with longer than normal grieving?

  7. Oxford Centre for Evidence-based Medicine Levels of Evidence (May 2001)

  8. New http://www.cebm.net/index.aspx?o=5653 10 June 2010

  9. 研究設計分類 ( A taxonomy of clinical research)by David A Grimes, Kenneth F Schulz,2002 Did investigator Assign exposures? No Yes Experimental study Observational study Random allocation? Comparison group? Yes Yes No No Analytical study Descriptive study Non-Randomized Controlled trial Randomized Controlled trial Direction? Exposure  Outcome Exposure and Outcome at same time Exposure  Outcome Cross- sectional study Cohort study Case-control study

  10. Computerized decision support Evidence-based clinical practice guidelines Evidence based textbook ACP Journal Club、DARE Systematic reviews Original journal articles The “6S” levels of organization of evidence from health care research by R Brain Haynes, 2009 Computer Summaries Synopses of Syntheses Syntheses ACP Journal Club Synopses of studies Studies

  11. 二次研究證據(已經整理的文獻) • 1. System系統 • 2. Summaries – for Background questions • (1) Evidence-based CPG (free) • (2) Best Practice-Clinical Evidence • (3) UpToDate • (4) ACP Pier & ACP Medicine • (5) FirstConsult • (6) DynaMed • (7) Medscape-eMedicine (free) • 3. Synopses精要( Article reviews) - for Background questions • (1) ACP Journal Club • (2) Evidence-based Medicine • (3) Evidence-based Nursing • 4. Syntheses統整( Systematic reviews) - forForeground question • (1) The Cochrane Library - CDSR & Other Reviews (中文版摘要 free) • (2) PubMed-Clinical Queries之 systematic review (free) • (3) Medline之systematic review • 原始研究證據(未經整理的文獻) • 5. Studies( Original journals articles)- for Foreground question • (1) The Cochrane Library- Clinical trials • (2) PubMed -Clinical Queries之Clinical study search (free) • (3) Medline (善用 more limit之功能) 搜尋流程 (自二次研究證據找起)

  12. OVID MEDLINE • 收錄年代:1946~Current • 收錄主題範圍 • 收錄內容:文獻之書目資料、摘要

  13. MeSH 醫學標題 主標題:Osteoporosis Diphosphonates Cross-Sectional Studies 副標題: Diagnosis Osteoporosis Drug therapy Epidemiology 文獻的重點為討論osteoporosis的流行病學研究,但文中有討論到治療及藥物治療 而且是以Diphosphonates為主要治療用藥

  14. 什麼是MeSH? 運動、遊戲、娛樂圈、音樂.....什麼都有

  15. NLM在分析生物醫學方面之期刊文獻、圖書、視聽資料、電子資源等資源的主題時,為了將同一概念用固定的詞彙表達,於是建立一套醫學標題詞(MeSH),以達到控制詞彙的目的。 • 索引專家們更在眾多標題詞中建立主題關係連結,可利用樹狀結構圖呈現出詞彙間語義或從屬上的關係。

  16. 以固定的詞彙表達 標題詞(MeSH) 彙整的同義詞 彙整同義詞至同一標題詞(MeSH)

  17. 標題詞(MeSH) 彙整相同主題的文章至同一標題詞(MeSH)

  18. 樹狀結構

  19. 二次研究證據(已經整理的文獻) • 1. System系統 • 2. Summaries • (1) Best Practice-Clinical Evidence • (2) UpToDate • (3) ACP Pier & ACP Medicine • (4) DynaMed • (5) Medscape-eMedicine (free) • 3. Synopses of Syntheses • (1) ACP Journal Club • (2) Evidence-based Medicine • (3) Evidence-based Nursing • (4) Database of Abstracts of Reviewsof Effects (DARE) • 4. Syntheses統整( Systematic reviews) • (1) The Cochrane Library - CDSR & Other Reviews (中文版摘要 free) • (2) ACPJC PLUS • (3) Medline之systematic review • 5.Synopses of Syntheses • 原始研究證據(未經整理的文獻) • 6. Studies( Original journals articles) • (1) The Cochrane Library- Clinical trials • (2) PubMed -Clinical Queries之Clinical study search (free) • (3) Medline (善用 more limit之功能) 搜尋流程 (自二次研究證據找起)

  20. 臨床問題 Which therapy have more benefit for Atopic Dermatitis either Tacrolimus or Corticosteroids.

  21. OVID MEDLINE 文獻檢索主要步驟 自然語言、關鍵字 檢索 MeSH Clinical Queries 條件限制 Publication Type 全文、內容 輸出 書目資料管理

  22. 檢 索

  23. BASIC Searsh

  24. Advanced Search(MeSH)

  25. 選擇主標題

  26. 選擇副標題 (找尋以prevention為主要研究方向的文獻)

  27. 條 件 限 制

  28. Clinical Queries(找回reviews的文獻) Sample年齡 期刊收錄主題 出版語系 以語彙控制為工具針對臨床行為做分類,senstivity為最嚴格、best balance次之,specificity為較鬆散的條件 文獻研究方法

  29. Publication types & subject subsets(systematic revews、mata-analysis、RCTs)

  30. Meta analysis 4 篇 Systematic Review 14 篇 RCTs 35 篇

  31. 輸 出

  32. 全文輸出

  33. 輸出勾選文獻的書目資料

  34. Thank You!

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