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Photodynamic therapy versus combination therapy in polypoidal choroidal vasculopathy: Changes of aqueous vascular endothelial growth factor

  • Catholic Univ. of Korea Coll. Med.
  • Retina Center of Nune Eye Hospital

Research output: Contribution to journalArticlepeer-review

32 Scopus citations

Abstract

Purpose: To investigate the influence of photodynamic therapy (PDT) and combination of PDT and ranibizumab on aqueous humor levels of vascular endothelial growth factor (VEGF) in polypoidal choroidal vasculopathy (PCV). Design: Prospective randomized clinical trial. Method: We included 20 eyes with treatment-naïve PCV and 20 eyes undergoing cataract surgery as controls. PCV eyes were randomized to treatment with PDT alone or to a combination of ranibizumab and PDT on the same day. During 3 months, retreatment was not performed. Aqueous humors were collected at baseline and at 1 week, 1 month, and 3 months after treatment in the PCV group and during cataract surgery in the control group. VEGF levels were measured using multiplex bead immunoassay. Results: At baseline, VEGF levels were significantly increased in PCV eyes compared with control eyes. A significant decrease in VEGF levels was found at 1 week after PDT treatment (n = 8) and at all time points after combination treatment (n = 12). With combination treatment, VEGF levels were decreased to values below the detection limit in all eyes at 1 week and 1 month and in 7 of 12 eyes at 3 months. There was no difference in the clinical profiles among the 2 treatment groups at each time point. Conclusion: Decreased levels of VEGF detected 1 week after PDT for PCV seems to reflect acute damage of vascular endothelial cells, one of the VEGF expression sites in PCV. Concomitant ranibizumab resulted in a further decrease in VEGF to negligible levels, but this result did not affect the clinical results for 3 months.

Original languageEnglish
Pages (from-to)343-348
Number of pages6
JournalAmerican Journal of Ophthalmology
Volume156
Issue number2
DOIs
StatePublished - Aug 2013

Bibliographical note

Funding Information:
All authors have completed and submitted the ICMJE Form for Disclosure of Potential Conflicts of Interest and the following were reported: Won Ki Lee: disclosures outside of the submitted work for consultancy (Novartis) and payment for lectures (Novartis, Bayer, Allergan); Oh Woong Kwon: disclosures outside of the submitted work for consultancy (Novartis, Bayer) and payment for lectures (Novartis, Bayer). This article was supported by funding from NOVARTIS KOREA , Seoul, South Korea. Contributions of authors: design and conduct of the study (W.K.L., M.Y.L.); collection (W.K.L., M.Y.L., J.B.L., O.W.K.), management (W.K.L., M.Y.L.), analysis (W.K.L., M.Y.L.), and interpretation of the data (W.K.L., M.Y.L.); and preparation (W.K.L., M.Y.L.), review, or approval of the manuscript (W.K.L., M.Y.L., J.B., J.H.L., O.W.K.).

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