title: [Risk factors for recurrent retinal detachment].
abstract: OBJECTIVE
  To determine the risk factors associated with recurrent retinal detachment in patients vitrectomized.
  
  
  METHODS
  Case-control study nested in a cohort. We included patients with a diagnosis of rhegmatogenous retinal detachment treated with vitrectomy for one year, with a six months follow-up. We monitored the presence of incident event in the emergency department, and the examination room. Statistical analysis was performed by descriptive statistics (median, minimum and maximum) and inferential statistics (chi-squared test, Cox regression, Kaplan-Meier).
  
  
  RESULTS
  A population of 94 patients with a median age of 55 years (21-83) was analyzed. The silicone was the most widely used type of tamponade in 62 patients (66 %) and recurrent retinal detachment occurred in 19 cases (20 %). In the relation between the non-relapse group and the relapse group, the statistically significant variable was the use of silicone (p = 0.05, OR = 0.03, 0.013-0.98), wich had a lower probability of recurrent detachment compared with the use of sulfur hexafluoride (SF6 gas) (p = 0.012).
  
  
  CONCLUSIONS
  The use of silicone compared with the use of SF6 gas has shown to be a protective factor for recurrent retinal detachment; however, the choice of method of tamponade should be individualized for each patient.
authors.affiliation: División de Oftalmología, Hospital de Especialidades. Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Distrito Federal, México. jorgesr84@hotmail.com.
authors.forename: Jorge Arturo
authors.initials: JA
authors.lastname: Sánchez-Ramos
authors.forename: Lizbeth Karina
authors.initials: LK
authors.lastname: Blanco-D'Mendieta
authors.forename: María de Lourdes
authors.initials: Mde L
authors.lastname: Soto-Hernández
authors.forename: Horacio
authors.initials: H
authors.lastname: Márquez-González
authors.forename: Ana Carolina
authors.initials: AC
authors.lastname: Sepúlveda-Vildósola
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D016022:Case-Control Studies; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D012008:Recurrence; D012163:Retinal Detachment / Q000209:etiology / Q000601:surgery*; D012307:Risk Factors; D016019:Survival Analysis; D016896:Treatment Outcome; D014821:Vitrectomy / Q000379:methods*; D055815:Young Adult
keywords: Retinal detachment; Silicones; Sulfur hexafluoride; Vitrectomy