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  • Title: One-year outcomes of intravitreal bevacizumab (avastin) therapy for polypoidal choroidal vasculopathy.
    Author: Cheng CK, Peng CH, Chang CK, Hu CC, Chen LJ.
    Journal: Retina; 2011 May; 31(5):846-56. PubMed ID: 21317837.
    Abstract:
    PURPOSE: To report on 1-year visual, anatomical, and angiographic responses with intravitreal bevacizumab for the treatment of polypoidal choroidal vasculopathy. METHODS: Patients with macula-involved, symptomatic polypoidal choroidal vasculopathy with initial best-corrected visual acuity of 20/400 or better and a minimal follow-up period of 12 months were retrospectively enrolled. Eyes were treated with intravitreal bevacizumab (2.5 mg) at baseline and monitored monthly for best-corrected visual acuity and central retinal thickness (by optical coherence tomography). Indocyanine green angiography was evaluated on a 6-month basis. Eyes were retreated on an "as-needed" basis according to visual and anatomical changes. RESULTS: A total of 35 eyes of 33 patients were treated with a mean of 3.3 (range, 1-8) times of injection. Best-corrected visual acuity significantly improved from a mean logarithm of the minimum angle of resolution of 0.79 ± 0.42 at baseline (Snellen equivalent, 20/123) to 0.69 ± 0.47 (20/94), 0.66 ± 0.45 (20/87), 0.67 ± 0.44 (20/87), 0.67 ± 0.48 (20/87), and 0.67 ± 0.51 (20/87) at 1, 3, 6, 9, and 12 months, respectively (P = 0.002, 0.0003, 0.0008, 0.017, and 0.02, respectively; paired Student's t-test). Central retinal thickness also significantly improved from a mean of 297 ± 94 μm at baseline to 215 ± 58 μm, 214 ± 59 μm, 218 ± 79 μm, 213 ± 75 μm, and 221 ± 61 μm at 1, 3, 6, 9, and 12 months, respectively (all P < 0.0001, paired Student's t-test). Indocyanine green angiography showed 3 of 32 eyes (9.4%) and 5 of 31 eyes (16.1%) with completely resolved polyps and 11 of 32 eyes (34.4%) and 10 of 31 eyes (32.3%) with reduced polyps at 6 and 12 months, respectively. No systemic complication or severe local complication, such as endophthalmitis, was found. CONCLUSION: Intravitreal bevacizumab therapy has a favorable outcome in improving visual acuity and macular exudative changes in patients with polypoidal choroidal vasculopathy. It can also moderately reduce polypoidal lesions on indocyanine green angiography.
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