Scientific case research in complementary and alternative medicine-a review

Area of Science:

• Integrative Medicine and Evidence-Based Practice
• Research Methodology in Healthcare

Background:

• Individual case descriptions are vital for medical education, particularly in complementary and alternative medicine (CAM).
• Traditional single case reports often lack the scientific rigor to address complex research questions.
• Limitations include insufficient data for evaluating treatment reliability and isolating causal factors.

Purpose of the Study:

• To introduce and explain single-case research designs as a tool for scientific inquiry in CAM.
• To discuss the relevance and applicability of these designs for clinical practice and evidence generation.
• To critically evaluate methods for assessing observation reliability and treatment efficacy in single-case studies.

Main Methods:

• Review of various single-case research designs, including observational studies and experimental designs.
• Detailed explanation of progressive and repetitive single-case experimental designs.
• Inclusion of n-of-1 randomized controlled trials (RCTs), multiple baseline designs, best case series, and meta-analyses of single-case studies.

Main Results:

• Single-case research designs provide a framework for asking critical, open-ended scientific questions.
• These designs enable the assessment of observation reliability and the identification of confounding factors.
• The reviewed methods offer a pathway to generate more robust evidence on treatment effects in CAM.

Conclusions:

• Single-case research is essential for advancing scientific understanding in CAM beyond anecdotal reporting.
• Implementing rigorous single-case designs can improve the quality of evidence for treatment effectiveness.
• These methodologies are crucial for bridging the gap between clinical observation and scientific validation in CAM practice.