[ORION®: a simple and effective method for systemic analysis of clinical events and precursors occurring in hospital practice]

Cancer Radiother. 2012 May;16(3):201-8. doi: 10.1016/j.canrad.2011.12.002. Epub 2012 Mar 15.
[Article in French]


Purpose: Morbimortality review is now recommended by the French Health Authority (Haute Autorité de santé [HAS]) in all hospital settings. It could be completed by Comités de retour d'expérience (CREX), making systemic analysis of event precursors which may potentially result in medical damage. As commonly captured by their current practice, medical teams may not favour systemic analysis of events occurring in their setting. They require an easy-to-use method, more or less intuitive and easy-to-learn. It is the reason why ORION(®) has been set up.

Methods: ORION(®) is based on experience acquired in aeronautics which is the main precursor in risk management since aircraft crashes are considered as unacceptable even though the mortality from aircraft crashes is extremely low compared to the mortality from medical errors in hospital settings. The systemic analysis is divided in six steps: (i) collecting data, (ii) rebuilding the chronology of facts, (iii) identifying the gaps, (iv) identifying contributing and influential factors, (v) proposing actions to put in place, (vi) writing the analysis report. When identifying contributing and influential factors, four kinds of factors favouring the event are considered: technical domain, working environment, organisation and procedures, human factors. Although they are essentials, human factors are not always considered correctly. The systemic analysis is done by a pilot, chosen among people trained to use the method, querying information from all categories of people acting in the setting.

Results: ORION(®) is now used in more than 400 French hospital settings for systemic analysis of either morbimortality cases or event precursors. It is used, in particular, in 145 radiotherapy centres for supporting CREX.

Conclusion: As very simple to use and quasi-intuitive, ORION(®) is an asset to reach the objectives defined by HAS: to set up effective morbi-mortality reviews (RMM) and CREX for improving the quality of care in hospital settings. By helping the efforts of medical teams, ORION(®) is an essential tool contributing to the patients' security.

Publication types

  • English Abstract

MeSH terms

  • Accidents, Aviation / prevention & control
  • Data Collection / methods
  • France
  • Hospital Mortality*
  • Hospitals
  • Humans
  • Medical Errors / mortality
  • Medical Errors / prevention & control*
  • Patient Safety / standards
  • Precipitating Factors
  • Quality Improvement / standards
  • Safety Management / methods*
  • Safety Management / standards
  • Time Factors