JOURNAL ARTICLE

Sequential combined treatment with intravitreal bevacizumab and photodynamic therapy for retinal angiomatous proliferation

F Viola, C Mapelli, E Villani, F Tresca Carducci, D Vezzola, R Ratiglia
Eye 2010, 24 (8): 1344-51
20339389

PURPOSE: To study visual and anatomical outcomes of sequenced combined therapy using intravitreal bevacizumab followed by photodynamic therapy (PDT) in eyes with retinal angiomatous proliferation (RAP). Safety and rate of intravitreal injections were also evaluated.

METHODS: We conducted a prospective non-comparative pilot study of consecutive patients newly diagnosed with RAP. PDT guided by indocyanine green (ICG) angiography was applied 8+/-2 days after the intravitreal bevacizumab (1.25 mg) injection. At baseline and every month after the injection, best-corrected visual acuity (BCVA) measurement, complete eye examination including dynamic fluorescein and ICG angiography, and optical coherence tomography (OCT) were performed.

RESULTS: In all, 21 eyes of 18 patients with RAP were enrolled. The mean age was 77 (range 65-86) years. Mean visual acuity at baseline was 0.63+/-0.25 logMAR. After treatment BCVA showed no statistically significant differences between each visit (P=0.10, ANOVA). At 9 months, the BCVA improved by three or more lines in three eyes (14%), remained stable in twelve eyes (57%), and worsened in six eyes (29%). Foveal thickness decreased significantly between baseline and all the follow-up visits (P<0.01, ANOVA). A total of 36 intravitreal injections were given during the study with a mean of 1.7 injections per eye (range 1-3 injections per eye). No ocular or systemic adverse events were reported.

CONCLUSION: A possible synergistic effect may arise from the combination of intravitreal bevacizumab with PDT for the treatment of RAP. These findings also suggest a possible benefit of combo therapy in the rate of intravitreal re-injections.

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