Integrating case reports into systematic reviews: methodological strategies and challenges.

Area of Science:

• Medical research methodology
• Evidence synthesis
• Clinical research

Background:

• Systematic reviews are crucial for synthesizing medical evidence.
• Current guidelines lack methodologies for incorporating case reports and case series.
• Case reports are vital for documenting rare conditions, adverse events, and emergent diseases.

Purpose of the Study:

• To establish a foundational guideline for conducting systematic reviews of case reports.
• To provide a step-by-step guide for investigators reviewing case report data.
• To explore the application and limitations of this methodology.

Main Methods:

• Development of a novel guideline for systematic reviews of cases.
• Dissection of the methodology's application in existing literature.
• Review of a case study demonstrating the systematic review of case reports.

Main Results:

• Case reports can be effectively synthesized into systematic reviews.
• This approach provides evidence for research questions difficult to address with other methods.
• Concerns regarding the quality and level of evidence from case reports persist.

Conclusions:

• A systematic review of case reports is feasible and valuable for specific research areas.
• The proposed guideline offers a structured approach to evidence synthesis from case reports.
• Addressing quality and evidence level concerns is essential for robust systematic reviews of cases.