title: Late surgical complications to endophthalmitis after cataract surgery in the post-EVS era.
abstract: BACKGROUND
  To compare the risk of surgical complications after primary surgical intervention for postoperative endophthalmitis after cataract surgery (PE) in cases that underwent a pars plana vitrectomy (PPV) or a vitreous tap (VT) in Denmark in the calendar period 1 January 2000 to 30 June 2011.
  
  
  METHODS
  Retrospective, register- and chart-based study.
  
  
  RESULTS
  A total of 121 PE cases were identified and followed up to 12.8 years. The overall risk of surgical complications in PE cases that underwent a PPV and a VT was 24.2 and 36.7 %, respectively. This difference was non-statistically significant (p = 0.18). In all, 9.9 % of the PE cases had more than one surgical complication, and 97 % of the primary surgical complications occurred within the first 5 months. There was no statistically significant difference in the risk of retinal detachment (p = 0.45), surgery for PE (p = 0.22), intraocular lens removal (p = 0.19), or removal of the eye (p = 0.69) between the two groups. PE cases that underwent a VT had a statistically significantly higher risk of surgery for vitreous opacities (p = 0.047) compared to a PPV.
  
  
  CONCLUSIONS
  In all, 27.3 % of all cases developed a surgical complication after primary surgical intervention for PE. If a PE case did not have a surgical complication within the first 5 months, it was highly unlikely that a new surgical complication would occur. A VT was not associated with a statistically significantly higher overall risk of surgical complications compared to a PPV.
authors.affiliation: Department of Ophthalmology, Glostrup University Hospital, Nordre Ringvej 57, 2600, Glostrup, Denmark, soeren.solborg.bjerrum@regionh.dk.
authors.forename: Søren
authors.initials: S
authors.lastname: Solborg Bjerrum
authors.forename: Jens F
authors.initials: JF
authors.lastname: Kiilgaard
authors.forename: Morten
authors.initials: M
authors.lastname: La Cour
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001419:Bacteria / Q000302:isolation & purification; D002387:Cataract Extraction / Q000009:adverse effects*; D009877:Endophthalmitis / Q000382:microbiology* / Q000601:surgery; D015818:Eye Infections, Bacterial / Q000382:microbiology* / Q000601:surgery; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications; D012189:Retrospective Studies; D014792:Visual Acuity / Q000502:physiology; D014821:Vitrectomy; D014822:Vitreous Body / Q000382:microbiology