Medical Error
Source: Makary & Daniel, “Medical Error — the Third Leading Cause of Death in the US,” BMJ 353, 2016; Reason, Human Error, 1990 Institution: Johns Hopkins; University of Manchester
Finding
Makary and Daniel estimated that medical errors cause more than 250,000 deaths per year in the U.S., making them the third leading cause of death. The Institute of Medicine’s To Err Is Human (1999) estimated 44,000-98,000. The key insight: medical error is predominantly systemic, not individual. James Reason’s Swiss cheese model describes how harm results from aligned holes in multiple defensive layers — training, protocols, checklists, oversight. No single failure suffices; the system fails when multiple defenses fail simultaneously.
Pattern Mapping
Alignment violated as Knowledge-Action Gap — physicians know protocols, but systems fail to translate knowledge into consistent action. The surgeon knows the checklist; the environment creates conditions where it is skipped. The gap is between knowledge and action, not knowledge and ignorance.
Honesty — Medical errors are not listed on death certificates. The CDC’s cause-of-death system has no code for “medical error.” The system that counts deaths cannot honestly name one of the leading causes. The failure of honesty is institutional.
Humility — The Swiss cheese model is structurally humble. It refuses to blame the individual and examines the system. Humility about causation: the system’s failure, not the individual’s character, is primary.
Connections
- Technical Debt — both are K-A Gaps: known problems, contradictory action
- Antibiotic Resistance — both: institutional K-A Gap in medicine
- Arendt Banality of Evil — systemic structures overriding individual knowledge
- Feedback Control — error correction mechanisms that fail when layers align
- Triage — both: resource and system constraints shape patient outcomes
Status
Makary & Daniel (2016). To Err Is Human (1999). Reason (1990). Methodology debated: Shojania & Dixon-Woods, BMJ 358, 2017. The existence of systemic medical error is not disputed. The structural analysis is this project’s interpretation.
The mapping to the five properties is this project’s structural interpretation.