MeSH (medical subject headings), is a controlled vocabulary/thesaurus, created by the US National Library of Medicine, that MEDLINE indexers use to describe article content. Searching Ovid MEDLINE using MeSH terms enables us to create a targeted search.
In the Advanced Search screen, tick the Map Term to Subject Heading box. Enter your topic/concept/idea in the search box and click on Search.
Note: When searching using MeSH terms we search for one concept at a time, individual concepts can then be combined using the MEDLINE Search History function.
Let's use "heart attack" as an example. If you map the term "heart attack" to subject headings, you get a match for Myocardial Infarction, as shown on this screen:
- Tick the Explode box to select, and search for, subject headings and any narrower terms. This is a way of broadening your search.
- Tick the Focus box to search only for articles where that subject heading appears as a Major Subject Heading.
- If you click on the subject heading itself, you are taken into a tree view - that is, the subject heading hierarchy. Use this to identify broader or narrower terms.
Select Myocardial Infarction, click on Continue to select from a list of subheadings. You can select all the subheadings, or make a selection of 1 or more subheadings which can be combined with AND or OR. In our example we select the subheading /pc - Prevention & Control & click on Continue to search.
Our search for Myocardial Infarction/pc [Prevention & Control] produced 101 results:
Note: Although you may find some links to full text articles, MEDLINE is primarily a database of abstracts. To locate full text when not immediately available click on the Find it at CSU links to check if the full text is available in another of our subscribed databases.