Embase: Using Emtree to enhance your searching - 27 March 2013

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In this webinar, Ian Crowlesmith reviewed the following:
- Emtree update policy, including backposting
- Recent enrichments in medical device terminology
- Optimizing retrieval using Emtree

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  • Hello, and thank you for logging on to this webinar.The subject of the webinar is using Emtree for searching Embase.I’ll be addressing 3 topics shown at the bottom of the screen. These are not exactly as advertised, but I will be covering all the same topics.During the presentation I will pause a couple of times in case you have any questions, which you can submit online while I am talking.Finally, at the end and time permitting, we’ll have a short Q&A for any additional questions, or if you would like me to demo Emtree on the live database
  • Since I will use medical devices as a case study in this webinar, I just wanted to give you an overview of some key industry segments, which I will refer back to later.These segments cover all classes of device, from class 1 to class 3, although as you can see the emphasis in this particular table is on class 2-3 devices which require pre-market approval to assure safety and effectiveness The first category, which includes hip and joint replacements, is the one which we will be focussing on.
  • We have come to the end of our Embase webinar. Thank you for attending and thank you Ian for this fascinating overview of new developments in Emtree. You will receive a link to the webinar calendar in a follow-up email and please feel free to register for as many Embase webinars as you wish. And of course send it to your colleagues. When you leave the session, a survey will pop up. Please fill out what your thoughts are regarding this webinar and so help us to improve future webinars. Besides this you will receive the Q&A by e-mail shortly with a link to the slides and recording. Many thanks again, good luck with further exploring Embase and we hope to meet you again soon.
  • Embase: Using Emtree to enhance your searching - 27 March 2013

    1. 1. Welcome to our Embase webinar!Using the Emtree thesaurusto enhance your searching Your host: Ann-Marie Roche Your presenter: Ian Crowlesmith
    2. 2. Need to know...• Webinar control panel: o Use the „Questions‟ feature for all your questions o Option for full screen view• Time for Q&A during and after the presentation
    3. 3. Using the Emtree thesaurus toenhance your searchingAgenda as announced1. Review Emtree update policy, including backposting2. Recent enrichments in medical device terminology3. Optimizing retrieval using EmtreeToday’s webinar(including all announced topics above)1. What you need to know about Emtree2. How to search Emtree in Embase.com3. Using Emtree to get the best out of your Embase search4. Q&A (including opportunity for live demo) 3
    4. 4. Medical Device industry segments Sub-Segments Products by sub-segment1 • Orthopedic replacements • Hip and joint replacements, bone nails screws Orthopedics/Spine • Implantable spinal devices • Spinal stimulators, thoracolumbar implants2 • Dental equipment • Hand held instruments, lasers dental chairs Dental • Dental materials • Cements and impression materials, implants3 • Ophthalmic systems and devices • Cataract surgery products, intraocular lenses, Ophthalmic • Consumer eye products • Contact + prescription lenses, eye care equipment4 • Devices for analysis of blood, tissues samples; chemical Biodevice / Diagnostics • In vitro diagnostics reagents, specialized microscopes • Medication delivery / dialysis tools • Insulin + pain control pumps, drug/device combos5 • Cardio implants and devices • Pacemakers, defibrillators, heart-lung machine Cardiovascular / Implantable • Non-cardio electro-medical implantable • Artificial organs, neurostimulators, hearing aids devices6 • Surgical equipment and systems • Robotics, advanced wound care, sutures Surgical and Laboratory equipment • Lab and hospital furniture and supplies • Catheters, lab scales, furnaces, laboratory instruments7 • High-tech imaging equipment • Ultrasound, MRI, cat scanners Imaging and monitoring equipment • Irradiation apparatus • X-ray equipment and medicine, fluoroscopes • Monitoring & safety engineered devices • Monitoring machines, remote-patient care 4
    5. 5. 5
    6. 6. isn’t functioning properly should be considered for metal ion testing.Adverse effects related to the ion levels include skin rash, visualimpairments, depression, kidney impairment and thyroid dysfunction. 6
    7. 7. Source: http://www.fda.gov/MedicalDevices/Safety/AlertsandNotices/ucm335775.htmSee also: http://www.fda.gov/MedicalDevices/DeviceRegulationandGuidance/Overview/ClassifyYourDevice/ucm051530.htm 7
    8. 8. What you need to know about Emtree1. Emtree is a faceted, polyhierarchical thesaurus (14 facets) 8
    9. 9. What you need to know about Emtree2. Focus on drugs and devices, with dynamic updating Structure Content Updates Faceted structure Drug-rich content Dynamic updating • natural-language • >30,000 drug terms • candidate term source list • synonym-rich • ALL generics, trade names • updates 3x each year • polyhierarchical & chemical names • all terms backposted Medical devices • .> 3,000 device terms (pre-2012: <1000 terms) For further information: http://www.embase.com/info/what-is-embase/emtree 9
    10. 10. What you need to know about Emtree3. Backposting Function Search date: in 2011 Search date: > Jan-2012 Emtree Preferred Term: 4 [n [1 (2 cyano 1 Preferred Term: tofacitinib oxoethyl) 4 methyl 3 piperidinyl] n Synonym: 4 [n [1 (2 cyano 1 oxoethyl) 4 methylamino]pyrrolo [2,3 d]pyrimidine methyl 3 piperidinyl] n methylamino] Candidate Term: tofacitinib pyrrolo [2,3 d]pyrimidine Embase Most records are indexed with: 4 [n [1 Via backposting, all records (for all (2 cyano 1 oxoethyl) 4 methyl 3 piperidinyl] years) are indexed with: tofacitinib n methylamino]pyrrolo [2,3 d]pyrimidine (A few records are indexed with tofacitinib as candidate term) Search 4 [n [1 (2 cyano 1 oxoethyl) 4 methyl 3 4 [n [1 (2 cyano 1 oxoethyl) 4 methyl 3 piperidinyl] n methylamino]pyrrolo [2,3 piperidinyl] n methylamino]pyrrolo [2,3 d]pyrimidine  most results d]pyrimidine maps to tofacitinib tofacitinib retrieves some hits Both terms  same results (all years) (these are the records in which tofacinib is a candidate term) 10
    11. 11. What you need to know about Emtree Questions so far ? 11
    12. 12. How to search Emtree in Embase.com 12
    13. 13. How to search Emtree in Embase.com 13
    14. 14. How to search Emtree in Embase.com 14
    15. 15. How to search Emtree in Embase.com 15
    16. 16. How to search Emtree in Embase.com 1 7 5 6 5 6 2 4 5 1 6 5 3 3 1 16
    17. 17. How to search Emtree in Embase.com 17
    18. 18. How to search Emtree in Embase.com 18 (…)
    19. 19. (… continued) 19 (…)
    20. 20. How to search Emtree in Embase.com 20
    21. 21. How to search Emtree in Embase.com 21
    22. 22. How to search Emtree in Embase.com 22
    23. 23. How to search Emtree in Embase.com 23
    24. 24. How to search Emtree in Embase.com 24
    25. 25. How to search Emtree in Embase.com Questions so far ? 25
    26. 26. Using Emtree to get the best out of your searchSearch strategy (1)1. Identify and search core concepts on Emtree using “Find Term” (review relevant articles for possible additional terms) - explode concepts for broad retrieval (e.g. „hip prosthesis‟/exp ) - exact search for precise results (e.g. „Mckee Farrar prosthesis‟/de ) - major focus for highest precision (e.g. „Mckee Farrar prosthesis‟/mj ) - phrase search for increased sensitivity (e.g. hip:de ) (candidate terms are found using :de but not /de) Combine using Query Builder or within Session Results, or: Take to Drug / Disease search (see step 3) (to be continued) 26
    27. 27. Using Emtree to get the best out of your search 27
    28. 28. isn’t functioning properly should be considered for metal ion testing.Adverse effects related to the ion levels include skin rash, visualimpairments, depression, kidney impairment and thyroid dysfunction. 28
    29. 29. Using Emtree to get the best out of your searchSearch strategy (1): initial approach Question: where are hip implants in Emtree ? Solutions: (1) use Find Term hip  hip prosthesis (2) search ‘hip implant’:ti and review index 29
    30. 30. Using Emtree to get the best out of your searchSearch strategy (1): revised approach 30
    31. 31. Using Emtree to get the best out of your searchSearch strategy (1): compiled results 31
    32. 32. Using Emtree to get the best out of your searchSearch strategy (1)1. Identify and search core concepts on Emtree using “Find Term” (review relevant articles for possible additional terms) - explode concepts for broad retrieval (e.g. „hip prosthesis‟/exp ) - exact search for precise results (e.g. „Mckee Farrar prosthesis‟/de ) - major focus for highest precision (e.g. „Mckee Farrar prosthesis‟/mj ) - phrase search for increased sensitivity (e.g. hip:de ) (candidate terms are found using :de but not /de) Combine using Query Builder or within Session Results, or: Take to Drug / Disease search (see step 3) 32
    33. 33. Using Emtree to get the best out of your searchSearch strategy (2/3)1. Identify and search core concepts on Emtree using “Find Term” (review relevant articles for possible additional terms) - explode concepts for broad retrieval (e.g. „hip prosthesis‟/exp ) - exact search for precise results (e.g. „Mckee Farrar prosthesis‟/de ) - major focus for highest precision (e.g. „Mckee Farrar prosthesis‟/mj ) - phrase search for increased sensitivity (e.g. hip:de ) (candidate terms are found using :de but not /de) Combine using Query Builder or within Session Results, or: Take to Drug / Disease search (see step 3)2. Add additional concepts from free text (e.g. concepts not represented in Emtree)3. Consider drug & disease subheadings - search floating subheadings (to be demonstrated) - add subheadings to specific drug/disease terms (cf. step 1) 33
    34. 34. isn’t functioning properly should be considered for metal ion testing.Adverse effects related to the ion levels include skin rash, visualimpairments, depression, kidney impairment and thyroid dysfunction. 34
    35. 35. Using Emtree to get the best out of your search 35
    36. 36. Using Emtree to get the best out of your searchSearch strategy (2): add concepts from free text 36
    37. 37. 37
    38. 38. Using Emtree to get the best out of your search 38
    39. 39. Using Emtree to get the best out of your searchSearch strategy (3): add disease subheadings 39
    40. 40. Using Emtree to get the best out of your searchSearch strategy (3): intermediate results 40
    41. 41. Using Emtree to get the best out of your searchSearch strategy (4): systematic reviews 41
    42. 42. Using Emtree to get the best out of your search 42
    43. 43. isn’t functioning properly should be considered for metal ion testing.Adverse effects related to the ion levels include skin rash, visualimpairments, depression, kidney impairment and thyroid dysfunction. 43
    44. 44. Using Emtree to get the best out of your search(Back to) Search strategy (3): specific disease subheadings 44
    45. 45. Using Emtree to get the best out of your search 45
    46. 46. Using Emtree to get the best out of your searchSearch strategy (3): specific disease subheadings 46
    47. 47. Using Emtree to get the best out of your search 47
    48. 48. Using Emtree to get the best out of your searchResults: article #1 48
    49. 49. Using Emtree to get the best out of your searchResults: article #1 49
    50. 50. Using Emtree to get the best out of your searchResults: article #2 50
    51. 51. Using Emtree to get the best out of your search Results: article #2as 51
    52. 52. Using Emtree to get the best out of your searchOriginal article (… continued) 52
    53. 53. Using Emtree to get the best out of your searchComparison with MeSH 53
    54. 54. Medical devices in Emtree: a summary1. Emtree structure Pre-2012: Apparatus , equipment and supplies Post 2012: - General apparatus … - Laboratory apparatus … - Medical apparatus …2. Emtree terms Sources consulted include: Jan 2012: 900 medical device terms - http://www.fda.gov/MedicalDevices (for classifications) - MeSH (Medical Subject Headings) Jan 2013: 2500 medical device terms - EMMET (Elsevier Merged Medical Thesaurus) - ECRI (Universal Medical Device Nomenclature System) Apr 2013: 3200 medical device terms - http://www.clarimed.com/medical-devices3. Emtree is key to getting the best search results • Browsing Emtree => explode, /de, major focus, phrase search • Use Query builder / add subheadings for drugs / diseases • Augment search using judiciously chosen free text phrases • Review articles to find new relevant index terms and repeat 54
    55. 55. • A Q&A will be sent by email.• For more information and questions , please contact your regional e-helpdesk• Our next webinar is an introduction on April 24 and we will focus on EBM on May 22, after we get back from MLA.• Go to http://www.elsevier.com/online-tools/embase/support for all Embase webinars and archives.Please fill out the survey thatappears on you screen afterleaving the webinar. 55

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