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  • Title: Long-term outcomes of intravitreal antivascular endothelial growth factor therapy for the management of choroidal neovascularization in pseudoxanthoma elasticum.
    Author: Myung JS, Bhatnagar P, Spaide RF, Klancnik JM, Cooney MJ, Yannuzzi LA, Freund KB.
    Journal: Retina; 2010 May; 30(5):748-55. PubMed ID: 19996818.
    Abstract:
    PURPOSE: The purpose of this study was to report long-term results of intravitreal antivascular endothelial growth factor therapy in the management of choroidal neovascularization in patients with angioid streaks associated with pseudoxanthoma elasticum. METHODS: A consecutive series of patients with pseudoxanthoma elasticum and choroidal neovascularization were managed with intravitreal antivascular endothelial growth factor injections (bevacizumab 1.25 mg/0.05 mL or ranibizumab 0.5 mg/0.05 mL). The main outcome measures were visual acuity and greatest lesion height as measured by optical coherence tomography. RESULTS: Nine eyes of nine consecutive patients received intravitreal antivascular endothelial growth factor therapy. During the mean follow-up period of 28.6 months, eyes received an average of 8.4 injections. At baseline, the mean visual acuity was 20/368 (median, 20/60) and improved to 20/281 (median, 20/40) at the last visit (P = 0.14). Visual acuity either improved or stabilized in all 9 eyes (100%). Serial optical coherence tomography measurements showed a mean of 353 mum at baseline and decreased to 146 mum at the last visit (P = 0.005). No complications were noted. CONCLUSION: These long-term results support the use of intravitreal antivascular endothelial growth factor therapy for the management of choroidal neovascularization in patients with pseudoxanthoma elasticum. Continued experience with intravitreal bevacizumab or ranibizumab in this population will help establish long-term efficacy and better define optimal dosing strategies.
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