Exploratory research synthesis--methodological considerations for addressing limitations in data quality

Area of Science:

• Medical Interventions
• Health Technology Assessment
• Research Methodology

Background:

• The carotid endarterectomy (CE) literature, like many emerging medical interventions, suffers from significant data quality limitations.
• Effective hypothesis generation is crucial for advancing medical knowledge and practice.

Purpose of the Study:

• To illustrate the application of exploratory research synthesis using the CE literature.
• To highlight methodological and statistical considerations for synthesizing imperfect data.

Main Methods:

• Conducted an exploratory research synthesis of the carotid endarterectomy literature.
• Addressed challenges such as missing data, unit of analysis, non-normal distributions, and lack of controlled studies.

Main Results:

• Demonstrated the utility of exploratory research synthesis in identifying research hypotheses.
• Identified specific limitations within the CE literature that require careful methodological handling.

Conclusions:

• Exploratory research synthesis is a valuable tool for hypothesis development, particularly with data-limited medical interventions.
• The approach provides insights into the strengths and weaknesses of synthesizing medical technology evidence for policy decisions.