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Supplementary Material for: Scleral Buckling Alone or in Combination with Pars Plana Vitrectomy for Rhegmatogenous Retinal Detachment Repair: A Meta-Analysis of 7212 Eyes

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posted on 09.05.2022, 10:32 by Nichani P.A.H., Dhoot A.S., Popovic M.M., Eshtiaghi A., Mihalache A., Sayal A.P., Yu H.J., Wykoff C.C., Kertes P.J., Muni R.H.
Purpose: The efficacy and safety of scleral buckling (SB) versus combination SB and pars plana vitrectomy (SB+PPV) for rhegmatogenous retinal detachment (RRD) repair remains unclear. Methods: A systematic review and meta-analysis was conducted to identify comparative studies published from Jan 2000-Jun 2021 that reported on the efficacy and/or safety following SB and SB+PPV for RRD repair. Final best-corrected visual acuity (BCVA) represented the primary endpoint, while reattachment rates and ocular adverse events were secondary endpoints. A random-effects meta-analysis was performed, and 95% confidence intervals were calculated. Results: Across 18 studies, 3912 SB and 3300 SB+PPV eyes were included. Final BCVA was non-significantly different between SB and SB+PPV (20/38 vs. 20/66 Snellen; WMD=–0.11 LogMAR; 95%CI [–0.29,0.07]; P=0.23). Primary reattachment rate was similar between procedures (P=0.74); however, SB alone achieved a significantly higher final reattachment rate (97.40% vs. 93.86%; RR=1.03; 95%CI [1.00,1.06]; P=0.04). Compared to SB+PPV, SB alone had a significantly lower risk of postoperative macular edema (RR=0.69; 95%CI [0.47,1.00]; P=0.05) and cataract formation (RR=0.34; 95%CI [0.12,0.96]; P=0.04). The incidence of macular hole, epiretinal membrane, residual subretinal fluid, proliferative vitreoretinopathy, elevated intraocular pressure, and extraocular muscle dysfunction were similar between SB and SB+PPV. Conclusions: There was no significant difference in final BCVA between SB+PPV and SB alone in RRD. SB alone offers a slightly higher final reattachment rate along with a reduced risk of macular edema and cataract. Primary reattachment rate and the incidence of other complications were similar between the two procedures.

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