title: Quality control activities associated with registries in interventional cardiology and surgery.
abstract: OBJECTIVE
  To describe and outline audit and quality control activities of the multicentre interventional and cardiac surgery registry in Victoria as a potential model for a national registry.
  
  
  METHODS
  The Melbourne Interventional Group (MIG) database is a prospective multicentre registry recording consecutive percutaneous coronary interventional (PCI) procedures across eight Victorian hospitals. Similarly, the Australasian Society of Cardiac and Thoracic Surgeons (ASCTS) database captures cardiac surgical activity across six Victorian hospitals. Auditing of each registry involved systematic selection of baseline, clinical and procedural variables from 5% of procedures to examine for data integrity and mismatches.
  
  
  METHODS
  Performance trend and data accuracy of each registry was assessed by the number of mismatches detected during the auditing process for different demographic, clinical and procedural variables and across different (de-identified) sites.
  
  
  RESULTS
  Over two auditing phases from 2004-2006 and 2007, 10 (4.3%) of variables from 3% of all PCI procedures and 15 (6.4%) variables from 5% of PCI procedures were analysed. There was 96.5% agreement during the first auditing phase of the MIG registry with an average of 0.35 mismatches per audit (CI 0.28-0.42), whereas during the second audit phase, agreement was up to 97% with 0.32 mismatches per 10 fields per audit (CI 0.25-0.40). The ASCTS database audit selected 39 (14.8%) variables from 5% of annual surgical cases across six cardiac surgical centres with an overall 96.7% agreement.
  
  
  CONCLUSIONS
  The current auditing process of these two databases is rigorous, robust and reflects a high degree of accuracy of data collected by participating hospitals.
authors.affiliation: Centre of Cardiovascular Research & Education in Therapeutics, Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia.
authors.forename: Nick
authors.initials: N
authors.lastname: Andrianopoulos
authors.forename: Diem
authors.initials: D
authors.lastname: Dinh
authors.forename: Stephen J
authors.initials: SJ
authors.lastname: Duffy
authors.forename: David J
authors.initials: DJ
authors.lastname: Clark
authors.forename: Angela L
authors.initials: AL
authors.lastname: Brennan
authors.forename: William
authors.initials: W
authors.lastname: Chan
authors.forename: Gilbert C
authors.initials: GC
authors.lastname: Shardey
authors.forename: Julian A
authors.initials: JA
authors.lastname: Smith
authors.forename: Cheng-Hon
authors.initials: CH
authors.lastname: Yap
authors.forename: Brian F
authors.initials: BF
authors.lastname: Buxton
authors.forename: Andrew E
authors.initials: AE
authors.lastname: Ajani
authors.forename: Christopher M
authors.initials: CM
authors.lastname: Reid
mesh_terms: D002309:Cardiology; D016208:Databases, Factual; D006801:Humans; D008485:Medical Audit; D011786:Quality Control; D012042:Registries; D012189:Retrospective Studies; D012955:Societies, Medical; D013903:Thoracic Surgery; D014739:Victoria