title: Evaluation of retinectomy in the treatment of severe proliferative vitreoretinopathy.
abstract: BACKGROUND
  To evaluate the postoperative results and efficacy of retinectomy in the treatment of severe proliferative vitreoretinopathy (PVR).
  
  
  METHODS
  The study involved 38 individuals with rhegmatogenous retinal detachment initially diagnosed with PVR grade C3 who had undergonepars planavitrectomy combined with scleral buckle and silicone oil as a tamponade. A standard three-portpars planavitrectomy was performed, and the extension of performing a retinectomy was decided during the procedure. The patients were followed for a minimum of 6 months after the last surgical procedure. Reoperation, postoperative hypotony and final reattachment rates were evaluated. Statistical analysis was performed with an Exact Fisher's test.
  
  
  RESULTS
  The mean preoperative visual acuity was >1.3 logMAR. The postoperative visual acuity improved and ranged from 1.3 to 0.7 logMAR (p< 0.63). The preoperative intraocular pressure was 10.2 mmHg and postoperatively was 11.6 mmHg. Postoperative hypotony was observed in 15.8 % of the cases. The reoperation rate after the first procedure was 63.2 %. A total of 44.7 % of the patients needed a retinectomy greater than 270° for a final anatomical success. The final retinal reattachment rate was 94.7 %.
  
  
  CONCLUSIONS
  Retinectomy can be an effective surgical procedure in the treatment of severe PVR, and it may increase the final reattachment rate.
authors.affiliation: Department of Ophthalmology, Suel Abujamra Institute, 693 Tamandare Street, 9th floor, Sao Paulo, SP 01531-000 Brazil.
authors.forename: Thaís Sousa
authors.initials: TS
authors.lastname: Mendes
authors.affiliation: Department of Ophthalmology, Suel Abujamra Institute, 693 Tamandare Street, 9th floor, Sao Paulo, SP 01531-000 Brazil.|Department of Ophthalmology, University of Sao Paulo, Sao Paulo, SP 05403-900 Brazil.
authors.forename: André Marcelo Vieira
authors.initials: AMV
authors.lastname: Gomes
authors.affiliation: Department of Ophthalmology, Suel Abujamra Institute, 693 Tamandare Street, 9th floor, Sao Paulo, SP 01531-000 Brazil.
authors.forename: Bruno Saraiva
authors.initials: BS
authors.lastname: Rocha
authors.affiliation: Department of Ophthalmology, Suel Abujamra Institute, 693 Tamandare Street, 9th floor, Sao Paulo, SP 01531-000 Brazil.
authors.forename: Hélcio Valério
authors.initials: HV
authors.lastname: Passos Junior
authors.affiliation: Department of Ophthalmology, Suel Abujamra Institute, 693 Tamandare Street, 9th floor, Sao Paulo, SP 01531-000 Brazil.|Department of Ophthalmology, University of Sao Paulo, Sao Paulo, SP 05403-900 Brazil.
authors.forename: Suel
authors.initials: S
authors.lastname: Abujamra
keywords: Retinal detachment; Retinectomy; Severe proliferative vitreoretinopathy