title: Reoperation for rhegmatogenous retinal detachment as quality indicator for disease management: a register study.
abstract: OBJECTIVE
  To establish a quality indicator that could be used in optimizing treatment for rhegmatogenous retinal detachment (RRD).
  
  
  METHODS
  The Danish National Patient Registry was used to identify surgery conducted in Denmark for RRD in the period 01 January 2001-31 December 2009. Cases were identified by diagnosis and surgical codes.
  
  
  RESULTS
  A total of 6522 cases were operated for a primary RRD in the study period, and 22% (1434 patients) were reoperated for a redetachment. A Cox regression analysis showed that the risk of redetachment was equal to or less than detachment on the fellow eye 1 year after primary surgery with techniques not using silicone oil. The same was true 1.5 years after surgery for techniques using silicone oil. Based on this, we established a quality indicator defining failure as the need for operation for redetachment within 1 year from initial surgery when using techniques without oil and after 1.5 years for techniques using oil. Also the lack of oil removal within 1 year from initial surgery should be noted as an operational failure. We applied the quality indicators on the cohort of 6522 RRDs and found that in Denmark the need for redetachment surgery has decreased over time and also that high-volume departments have better outcome compared to smaller ones.
  
  
  CONCLUSIONS
  The risk of reoperation for redetachment after initial surgery fulfils the criteria for a good quality indicator and can be used in RRD surgery. This indicator could aid in optimizing the management of RRD patients to minimize morbidity.
authors.affiliation: Department of Ophthalmology, Glostrup Hospital, University of Copenhagen, Glostrup, Denmark.
authors.forename: Javad N
authors.initials: JN
authors.lastname: Hajari
authors.affiliation: Department of Ophthalmology, Glostrup Hospital, University of Copenhagen, Glostrup, Denmark.
authors.forename: Ulrik
authors.initials: U
authors.lastname: Christensen
authors.affiliation: Department of Ophthalmology, Glostrup Hospital, University of Copenhagen, Glostrup, Denmark.
authors.forename: Jens F
authors.identifier: http://orcid.org/0000-0003-1054-1460
authors.initials: JF
authors.lastname: Kiilgaard
authors.affiliation: Department of Ophthalmology, Aarhus University Hospital, Aarhus, Denmark.
authors.forename: Toke
authors.initials: T
authors.lastname: Bek
authors.affiliation: Department of Ophthalmology, Glostrup Hospital, University of Copenhagen, Glostrup, Denmark.
authors.forename: Morten
authors.initials: M
authors.lastname: la Cour
mesh_terms: D003718:Denmark; D058450:Endotamponade; D006801:Humans; D019984:Quality Indicators, Health Care / Q000592:standards*; D012008:Recurrence; D012042:Registries; D012086:Reoperation; D012163:Retinal Detachment / Q000175:diagnosis / Q000601:surgery*; D012307:Risk Factors; D012591:Scleral Buckling / Q000592:standards* / Q000639:trends; D012827:Silicone Oils / Q000008:administration & dosage; D014821:Vitrectomy / Q000592:standards* / Q000639:trends
chemical_list: D012827:Silicone Oils
keywords: disease management; health care; quality indicators; retinal detachment; surgical procedures