title: Look back and talk openly: responding to and communicating about the risk of large-scale error in pathology diagnoses.
abstract: OBJECTIVE
  In 2005 we were informed about the possibility of a systemic error in pathology diagnoses of ~7400 histological tests done between 4 and 6 years earlier.
  
  
  METHODS
  We determined to undertake a lookback and apply principles of open disclosure to inform the affected community of ~200,000 people.
  
  
  METHODS
  The lookback included subjecting all cases to independent pathology review. The public announcement of the review included an unreserved apology and took place before the results of the re-examination of the pathology specimens were known.
  
  
  METHODS
  The lookback involved the simultaneous implementation of five critical elements: leadership and governance, risk assessment and planning, implementation of the independent review, procedures for patient care and communication and open disclosure. Protocols were developed to care for those patients whose original test results were found to be incorrect.
  
  
  RESULTS
  The original result for >200 patients was incorrect, and 38 had experienced clinical consequences. There was no public panic as a result of the wide open disclosure. Few related legal claims or complaints were made. The impact of the pathology diagnostic error has continued to 2011 for some patients.
  
  
  CONCLUSIONS
  Openly disclosing a risk of widespread error meant the community could be supported with information and medical management as needed. Credentialing and peer-review processes for senior staff must be precise and collegiate. Sometimes action has to take place even when the risk is ill defined. There are five critical elements in planning and implementing a large-scale lookback.
authors.affiliation: Clinical Governance, The Lodge, Rankin Park Campus, Hunter New England Health, Locked Bag 1, New Lambton, NSW 2305, Australia. rosemary.aldrich@hnehealth.nsw.gov.au
authors.forename: Rosemary
authors.initials: R
authors.lastname: Aldrich
authors.forename: Peter
authors.initials: P
authors.lastname: Finlayson
authors.forename: Kim
authors.initials: K
authors.lastname: Hill
authors.forename: Margaret
authors.initials: M
authors.lastname: Sullivan
mesh_terms: D003951:Diagnostic Errors / Q000706:statistics & numerical data; D006801:Humans; D033181:Information Dissemination; D007857:Leadership; D008485:Medical Audit / Q000458:organization & administration*; D010338:Pathology, Clinical; D018570:Risk Assessment; D014342:Truth Disclosure