Investigating adverse outcomes in obstetrics

Area of Science:

• Healthcare Quality Improvement
• Patient Safety Research
• Systems Analysis in Medicine

Background:

• Adverse healthcare outcomes necessitate systematic investigation, particularly in obstetrics where maternal mortality is rare.
• Existing models for accident investigation, such as Reason's model, offer valuable insights into active failures and latent conditions.
• Donabedian's framework for quality assurance (Outcome, Process, Structure) provides a foundation for analyzing healthcare system performance.

Purpose of the Study:

• To present a systematic model for investigating adverse healthcare outcomes.
• To integrate established frameworks like Donabedian's quality assurance and Reason's accident model.
• To apply the model to obstetric mortality and other critical incident analyses.

Main Methods:

• A novel investigative model is proposed, structured around three core questions: What? (Outcome), How? (Process), and Why? (Structure).
• The model incorporates concepts of "active failures" and "latent conditions" from accident causation theory.
• Human factors principles, adapted from aviation (Helmreich's model), are integrated into the analysis of latent conditions.

Main Results:

• The model was successfully applied to a well-documented aviation accident (Dryden, Ontario) and three cases of maternal mortality.
• The application demonstrated the model's utility in dissecting complex events and identifying systemic weaknesses.
• The study discusses the model's adaptability for both reactive investigations (e.g., "close calls") and proactive hazard identification.

Conclusions:

• The proposed model offers a robust framework for systematically investigating adverse healthcare events.
• Its integration of quality assurance and human factors principles enhances the depth of safety analyses.
• The model is versatile, applicable to diverse healthcare settings and incident types for proactive and reactive safety management.