title: 25-gauge, sutureless vitrectomy and standard 20-gauge pars plana vitrectomy in idiopathic epiretinal membrane surgery: a comparative pilot study.
abstract: BACKGROUND
  The aim of the study was to evaluate the safety and functional outcome of a small incision, sutureless vitrectomy in the treatment of idiopathic epiretinal membranes (ERM) compared with a standard 20-gauge vitrectomy system.
  
  
  METHODS
  Forty-six consecutive patients with idiopathic ERM were recruited for this study and prospectively evaluated. In group 1 (n=26) we used a transconjunctival sutureless 25-gauge vitrectomy system (TSV), patients in group 2 (n=20) were operated on using a standard 20-gauge vitrectomy system. The ERM was removed and the internal limiting membrane (ILM) was peeled in all eyes. Surgery-related complications, operating time, intraoperative balanced salt solution (BSS) consumption, postoperative discomfort, postoperative intraocular inflammation, lens opacification, and long-term visual outcome are reported and compared.
  
  
  RESULTS
  No surgery-related complications were observed in either group. Operating time was shorter in group 1 compared with group 2 (mean 15.6 and 29.6 min respectively). Intraoperative amount of BSS consumption was less in group 1 (mean 28 ml in group 1 and 42 ml in group 2). Postoperative discomfort and intraocular inflammation were significantly reduced in the 25-gauge group. In the 20-gauge group cataract formation requiring surgery was observed in two eyes. Visual acuity improved significantly in both groups. The 25-gauge group improved on average by more lines of vision and the improvement in vision was more rapid.
  
  
  CONCLUSIONS
  The TSV system is a safe and efficient surgical technique for ERM surgery. Operating time is significantly reduced, minimizing surgery-induced trauma, and reducing postoperative intraocular inflammation and the patients' discomfort. The incidence of cataract formation may be less using TSV. Postoperative recovery is accelerated.
authors.affiliation: Santa Chiara Hospital, Eye Surgery Clinic, Via Roma 67, 56100, Pisa, Italy. chiroftalmica@ao-pisa.toscana.it
authors.forename: Stanislao
authors.initials: S
authors.lastname: Rizzo
authors.forename: Federica
authors.initials: F
authors.lastname: Genovesi-Ebert
authors.forename: Simona
authors.initials: S
authors.lastname: Murri
authors.forename: Claudia
authors.initials: C
authors.lastname: Belting
authors.forename: Andrea
authors.initials: A
authors.lastname: Vento
authors.forename: Federica
authors.initials: F
authors.lastname: Cresti
authors.forename: Maria Laura
authors.initials: ML
authors.lastname: Manca
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D019773:Epiretinal Membrane / Q000503:physiopathology / Q000601:surgery*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010865:Pilot Projects; D011183:Postoperative Complications; D011446:Prospective Studies; D013536:Suture Techniques; D014792:Visual Acuity / Q000502:physiology; D014821:Vitrectomy / Q000379:methods*