title: [Incidence of endophthalmitis after intravitreal Avastin injection with and without postoperative topical antibiotic application].
abstract: BACKGROUND
  Intravitreal injection of vascular endothelial growth factor inhibitors is safe as a standardized procedure. In a retrospective study, we examined the incidence of intraocular inflammation and endophthalmitis when intravitreal Avastin was given on both an outpatient and an inpatient basis.
  
  
  METHODS
  Two centers treated a total of 1844 patients with intravitreal Avastin injection (IVA), 1.25 mg/0.05 ml. The medication was given under aseptic conditions with a sterile drape and lid speculum and after an incubation of 5% povidone-iodine for 60 s in the conjunctival fornix. Center A performed all applications as an outpatient procedure with no postoperative topical antibiotics. Center B performed all IVAs prior to a 1-day hospital admission and gave topical antibiotics for 3 days. In both centers the patients were told to return to the hospital immediately if visual disturbance, pain, or redness of the eyes was noticed.
  
  
  RESULTS
  Center A did 984 IVAs. Postoperatively no patients had endophthalmitis. On the 2nd postoperative day, two patients developed a mild intraocular uveitis, which was treated with local steroid ointments. Center B did 860 IVAs. Five days after discharge from the hospital, two patients presented with endophthalmitis and underwent vitrectomy when their vision dropped to counting fingers. There was no positive microbiological result of either vitreous probe.
  
  
  CONCLUSIONS
  Although equal treatment guidelines were established, the perioperative hospital admission and postoperative application of topical antibiotic ointment could not reduce the occurrence of mild to severe intraocular endophthalmitis.
authors.affiliation: Augenklinik, Universität Bonn, Ernst-Abbe-Strasse 2, 53127, Bonn. carsten_h.meyer@ukb.uni-bonn.de
authors.forename: C H
authors.initials: CH
authors.lastname: Meyer
authors.forename: S
authors.initials: S
authors.lastname: Mennel
authors.forename: N
authors.initials: N
authors.lastname: Eter
mesh_terms: D020533:Angiogenesis Inhibitors / Q000008:administration & dosage; D000911:Antibodies, Monoclonal / Q000008:administration & dosage*; D061067:Antibodies, Monoclonal, Humanized; D000068258:Bevacizumab; D004334:Drug Administration Schedule; D004359:Drug Therapy, Combination; D009877:Endophthalmitis / Q000453:epidemiology* / Q000517:prevention & control*; D005260:Female; D005858:Germany / Q000453:epidemiology; D006801:Humans; D015994:Incidence; D007267:Injections; D008297:Male; D013508:Ophthalmologic Surgical Procedures / Q000706:statistics & numerical data*; D011182:Postoperative Care / Q000706:statistics & numerical data; D011183:Postoperative Complications / Q000453:epidemiology* / Q000517:prevention & control*; D012189:Retrospective Studies; D018570:Risk Assessment / Q000379:methods*; D012307:Risk Factors; D016896:Treatment Outcome
chemical_list: D020533:Angiogenesis Inhibitors; D000911:Antibodies, Monoclonal; D061067:Antibodies, Monoclonal, Humanized; D000068258:Bevacizumab