Adverse events and medical errors


  • Definitions
    • Adverse Event: Any injury caused by medical management (rather than underlying disease); may or may not be preventable
    • Medical Error: Failure of a planned action to be completed as intended OR use of a wrong plan to achieve an aim
    • Near Miss: Error that could have caused harm but did not reach the patient (intercepted or by chance)
    • Sentinel Event: Unexpected occurrence involving death or serious physical/psychological injury
  • Types of Errors
    • Active Errors: Occur at point of contact between human and system (e.g., wrong medication administered by nurse)
    • Latent Errors: System/organizational failures that create conditions for active errors (e.g., poor labeling, inadequate staffing)
    • Diagnostic Errors: Missed, delayed, or incorrect diagnosis
    • Treatment Errors: Wrong medication, dose, route, or procedure
    • Preventive Errors: Failure to provide prophylaxis or monitoring

Management of medical errors


  • Initial disclosure
    • Acknowledge errors openly
    • Do not hide errors or other relevant factors
    • Express empathy & give apology as appropriate
    • Avoid blaming or denigrating other team members & providers
    • Allow adequate opportunity for patient questions
  • Follow-up steps
    • Remain engaged in the patient’s care
    • Outline steps to prevent future occurrence