Since then, many authors have retrospectively reported their outcomes with the postoperative use of PFO from an average of five to 18 days ( Table, page 11). ![]() Single-surgery anatomical success (SSAS) rate of 82 percent until at least three months of follow-up. Direct intraoperative PFO-silicone oil exchange is one option to mitigate slippage, as we have reviewed here previously ( June 2017 Retina Specialist, page 41).įerdinando Bottoni, MD, and colleagues at the University of Milan first described the use of PFO as a postoperative tamponade in 1994. 2 Perfluoro-n-octane (PFO), the most commonly used PFCL today, has a very high specific gravity (1.76), viscosity and low surface tension, which makes it an ideal agent in flattening retinal folds and preventing slippage. Intraoperative use of perfluorocarbon liquid (PFCL), first described in 1987 by Stanley Chang, MD, 4 has helped increase intraoperative reattachment in RRD with GRT in the presence or absence of PVR. Slippage, which may be due to incomplete drainage of subretinal fluid, occurs when re-attached retina and GRT slip posteriorly, leading to retinal folds or redetachment. ![]() Proliferative vitreoretinopathy (PVR) has been proposed to be more common with GRTs due to the extent of retinal break, extensive retinal pigment epithelium exposure as well as the younger average age of affected patients. 1-3 The rate of recurrent retinal detachment secondary to proliferative vitreoretinopathy and/or slippage has been reported to be as high as 40 to 50 percent after the first surgery with small-gauge vitrectomy and long-term gas or silicone oil tamponade. Rhegmatogenous retinal detachment secondary to giant retinal tear is associated with a relatively high rate of retinal redetachment.
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