title: [Risk factors and prognosis of peripheral retinal breaks complicating pars plana vitrectomy].
abstract: OBJECTIVE
  To assess the risk factors and prognosis of peripheral retinal breaks complicating pars plana vitrectomy.
  
  
  METHODS
  Retrospective observational case series. Four hundred and four consecutive vitrectomies performed on eyes without preexisting retinal breaks or retinal detachments were retrospectively reviewed. Cases with peripheral retinal breaks found during or after the vitrectomy were recorded and analyzed.
  
  
  RESULTS
  Of the 404 vitrectomies, 32 eyes had 55 iatrogenic peripheral retinal breaks with an average incidence of 7.9%. Peripheral retinal breaks were most common in cases with branch retinal vein occlusion (BRVO) (13.3%) and less common in proliferative diabetic retinopathy (PDR) (3.7%) (chi2 =9.18, P<0.01). Of the 55 breaks, 51 (92.7%) occurred around the sclerotomy sites, and 29 (52.7%) in the quadrant corresponding to the predominant hand of the surgeon. Cases with breaks detected during surgery had a better outcome of retinal reattachment as compared with cases identified postoperatively.
  
  
  CONCLUSIONS
  Peripheral retinal breaks complicating pars plana vitrectomy is mainly sclerotomy-related and is more common in cases with BRVO than in cases with PDR. Early detection during surgery tends to have a better outcome.
authors.affiliation: Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China.
authors.forename: Wen-Ying
authors.initials: WY
authors.lastname: Fan
authors.forename: Jun
authors.initials: J
authors.lastname: Xu
authors.forename: Zhi-Jia
authors.initials: ZJ
authors.lastname: Hou
authors.forename: Ning-Pu
authors.initials: NP
authors.lastname: Liu
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D012167:Retinal Perforations / Q000209:etiology*; D012189:Retrospective Studies; D012307:Risk Factors; D014821:Vitrectomy / Q000009:adverse effects*; D055815:Young Adult