Detailed Notes on Conducting a Literature Search for Medical Science

Introduction to Literature Search in Medical Science

Conducting a literature review is essential for understanding current research findings in health and medicine. This involves utilizing specific medical science databases to locate peer-reviewed articles that can inform your research.

Objectives of Literature Review

When carrying out a literature review, you need to complete a template that includes:

  • Search terms used in the database.

  • Filters applied, such as dates and publication types.

  • The number of results generated.

  • Insights from the results to support your literature review.

Learning Outcomes

The focus of this literature search exercise is to achieve several key learning outcomes:

  1. Know Major Databases: Recognize key research databases specific to health and medicine, explaining their unique features.

  2. Understand PICO Framework: Grasp the PICO framework (Problem, Intervention, Comparison, Outcome) when investigating health topics.

  3. Search String Construction: Learn techniques for structuring effective search strings in research databases.

  4. Use of Generative AI: Comprehend how to effectively utilize generative AI tools in research contexts.

Research Databases Overview

Databases are specialized tools vital for acquiring academic and research sources. They can be categorized as:

  • Multidisciplinary or subject-specific.

  • Focused on particular types of sources, such as statistics or news, or comprehensive sources delivering a diverse range of academic materials like journals, books, and conference proceedings.

  • They often provide not only citation details and abstracts but may also offer full-text articles and advanced search functionalities.

Key Databases in Health and Medicine

  1. PubMed: Specializes in health and medicine; contains original research, reviews, guidelines, and various medical literature.

    • Use: To find credible sources on any specified health topic.

  2. Cochrane: Focuses on systematic reviews and original health research.

    • Use: For high-level evidence to direct clinical research inquiries.

  3. Scopus: A multidisciplinary database housing peer-reviewed articles across diverse fields.

    • Use: For cross-referencing credible sources published across various disciplines.

Steps for Searching Literature

The literature search process can be broken down into the following steps:

  1. Explore the Topic: Increase your understanding of the topic by uncovering relevant terminology and relevant articles.

  2. Identify Search Terms: Deduce keywords critical to your research question.

  3. Construct a Search: Build a search using identified terms and synonyms, ensuring to use Boolean operators effectively.

  4. Apply Filters: Set criteria such as publication date or resource type to narrow results.

  5. Review Results: Skim through outcomes to identify relevant articles.

  6. Refine Search: Modify search parameters to enhance the relevance of findings.

Implementation of the PICO Framework

Understanding and applying the PICO framework involves categorizing your research as follows:

  • Problem: Define what the health issue or patient group is (e.g., depression and anxiety).

  • Intervention: Specify what treatment is being investigated (e.g., saffron, scientifically known as Crocus sativus).

  • Comparison: Identify a baseline for comparison (e.g., standard treatments like fluoxetine).

  • Outcome: Decide on what outcome measures are significant to assess effectiveness (e.g., symptom reduction, patient feedback).

For example, researching the effectiveness of saffron on depression focuses on administering a dosage of 30 mg daily and observing changes in brain chemicals, such as serotonin levels, with outcome measures based on specific scales (e.g., HAM-A, BAI/BDI).

Handling Search Results

When results are either too few or too many:

  • Too Few Results: Explore relevant articles to identify new terminology or related synonyms. Check for spelling mistakes or overly restrictive limits and broaden your search terms to include broader categories if possible.

  • Too Many Results: Revisit search parameters to ensure the correct use of Boolean operators (AND versus OR) and consider employing phrase searching or truncation for efficiency. You may additionally want to introduce more focused concepts like specific age groups or outcomes.

Conclusion: Seeking Assistance

Whenever faced with difficulties, leverage available resources. Utilize self-help materials online or reach out to library services for guidance. Resources can be accessed via the library's website or by contacting library staff directly.