title: Nosocomial acute-onset postoperative endophthalmitis survey. A 10-year review of incidence and outcomes.
abstract: OBJECTIVE
  The purpose of the study was to evaluate the incidence of acute-onset (within 6 weeks after surgery) postoperative endophthalmitis and to assess the visual acuity outcomes after treatment over a 10-year period at one institution.
  
  
  METHODS
  This retrospective study reviews all surgical cases performed between January 1, 1984 and December 30, 1994 at the Anne Bates Leach Eye Hospital, Bascom Palmer Eye Institute, University of Miami Medical Center, for the occurrence of nosocomial acute-onset postoperative endophthalmitis.
  
  
  RESULTS
  The overall 10-year incidence of acute-onset postoperative endophthalmitis after intraocular surgery was 0.093% (54/58, 123). The incidences of culture-proven acute-onset postoperative endophthalmitis by surgical category were as follows: cataract surgery with or without intraocular lens (IOL) (0.082%, 34/41, 654), pars plana vitrectomy (PPV) (0.046%, 3/6557), penetrating keratoplasty (0.178%, 5/2805), secondary IOL placement (0.366%, 5/1367), glaucoma surgeries (0.124%, 4/3233), combined trabeculectomy and cataract surgery (0.114%, 2/1743), and combined penetrating keratoplasty and cataract surgery (0.194%, 1/515). The median visual acuity after endophthalmitis treatment was 20/200. The median visual acuities after endophthalmitis treatment by procedure were as follows: cataract surgery with or without IOL (20/133), PPV (no light perception), penetrating keratoplasty (2/200), secondary IOL implantation (20/40), glaucoma surgery (20/80), and combined trabeculectomy and cataract surgery with or without IOL (20/150).
  
  
  CONCLUSIONS
  The overall incidence of endophthalmitis after intraocular surgery was 0.093%. The incidence of endophthalmitis was higher after secondary IOL implantation than after cataract extraction (P = 0.008, Fisher's exact test). After treatment, the visual acuity outcomes were worse in the patients who developed endophthalmitis after PPV than after cataract extraction, glaucoma procedures, or secondary IOL implantation (P < 0.05, analysis of variance, Duncan's multiple range test). Acuity outcomes after treatment of endophthalmitis were better among the patients with secondary IOL implantation than after penetrating keratoplasty or PPV (P < 0.05, analysis of variance, Duncan's multiple range test). The results of this 10-year review from a large teaching center may serve as a source of comparison for other centers and future studies.
authors.affiliation: Department of Ophthalmology, University of Miami, School of Medicine, Florida, USA.
authors.forename: T M
authors.initials: TM
authors.lastname: Aaberg
authors.forename: H W
authors.initials: HW
authors.lastname: Flynn
authors.forename: J
authors.initials: J
authors.lastname: Schiffman
authors.forename: J
authors.initials: J
authors.lastname: Newton
mesh_terms: D000208:Acute Disease; D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000900:Anti-Bacterial Agents / Q000627:therapeutic use; D002648:Child; D002675:Child, Preschool; D003428:Cross Infection / Q000188:drug therapy / Q000453:epidemiology* / Q000209:etiology; D009877:Endophthalmitis / Q000188:drug therapy / Q000453:epidemiology* / Q000382:microbiology; D005128:Eye Diseases / Q000601:surgery; D015818:Eye Infections, Bacterial / Q000188:drug therapy / Q000453:epidemiology* / Q000209:etiology; D005260:Female; D005431:Florida / Q000453:epidemiology; D006801:Humans; D015994:Incidence; D007223:Infant; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000188:drug therapy / Q000453:epidemiology* / Q000382:microbiology; D012189:Retrospective Studies; D016896:Treatment Outcome; D014792:Visual Acuity; D014821:Vitrectomy
chemical_list: D000900:Anti-Bacterial Agents