title: 25-gauge vitrectomy and triamcinolone acetonide-assisted internal limiting membrane peeling for chronic cystoid macular edema associated with branch retinal vein occlusion.
abstract: OBJECTIVE
  To evaluate the efficacy of 25-gauge vitrectomy and triamcinolone acetonide (TA)-assisted internal limiting membrane (ILM) peeling for chronic cystoid macular edema (CCME) in branch retinal vein occlusion (BRVO).
  
  
  METHODS
  Thirty-four patients (38 eyes) presenting with CCME in BRVO were treated prospectively by 25-gauge vitrectomy and ILM peeling. Change in best-corrected visual acuity (BCVA) and CCME status were evaluated preoperatively and postoperatively at 1 month, 2 months, 3 months, 4 months, 5 months, 6 months, and 7 months.
  
  
  RESULTS
  Mean postoperative logMAR BCVAs +/- SD were 0.69 +/- 0.42, 0.65 +/- 0.41, 0.59 +/- 0.32, 0.39 +/- 0.27, 0.35 +/- 0.31, 0.32 +/- 0.28, and 0.32 +/- 0.31 at the seven follow-up months, respectively. Mean foveal thicknesses +/- SD were 443 +/- 60 microm, 212 +/- 67 microm, 188 +/- 41 microm, 176 +/- 53 microm, 173 +/- 41 microm, 171 +/- 39 microm, and 170 +/- 41 microm at the 7 follow-up months, respectively. Compared with before surgery, BCVA improved, and CCME was absorbed significantly (P < 0.01, Dunnett test). Foveal thickness and logMAR BCVA 7 months after surgery had a significant negative linear correlation (r = -0.81, P < 0.01; Spearman rank correlation).
  
  
  CONCLUSIONS
  Twenty-five-gauge vitrectomy with TA-assisted ILM peeling is generally effective in reducing macular edema and improving BCVA for CCME in BRVO for at least 7 months.
authors.affiliation: Eye Center of Affiliated Second Hospital School of Medicine, Zhejiang University, Hangzhou, PR China. zjhzqz@yahoo.com.cn
authors.forename: Jin
authors.initials: J
authors.lastname: Ma
authors.forename: Ke
authors.initials: K
authors.lastname: Yao
authors.forename: Zheng
authors.initials: Z
authors.lastname: Zhang
authors.forename: Xiajing
authors.initials: X
authors.lastname: Tang
mesh_terms: D000328:Adult; D000368:Aged; D001485:Basement Membrane / Q000601:surgery*; D002908:Chronic Disease; D003131:Combined Modality Therapy; D005260:Female; D005500:Follow-Up Studies; D005938:Glucocorticoids / Q000627:therapeutic use*; D006801:Humans; D008269:Macular Edema / Q000209:etiology / Q000601:surgery*; D008297:Male; D008866:Microsurgery / Q000379:methods*; D008875:Middle Aged; D011446:Prospective Studies; D012170:Retinal Vein Occlusion / Q000150:complications / Q000601:surgery*; D014222:Triamcinolone Acetonide / Q000627:therapeutic use*; D014792:Visual Acuity; D014821:Vitrectomy / Q000379:methods*
chemical_list: D005938:Glucocorticoids; D014222:Triamcinolone Acetonide