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  • Title: Bevacizumab vs photodynamic therapy for choroidal neovascularization in multifocal choroiditis.
    Author: Parodi MB, Iacono P, Kontadakis DS, Zucchiatti I, Cascavilla ML, Bandello F.
    Journal: Arch Ophthalmol; 2010 Sep; 128(9):1100-3. PubMed ID: 20837791.
    Abstract:
    OBJECTIVE: To compare the effectiveness of photodynamic therapy (PDT) vs intravitreal bevacizumab injection in patients with subfoveal choroidal neovascularization (CNV) secondary to multifocal choroiditis (MC). METHODS: Patients affected by subfoveal CNV associated with MC referred for clinical evaluation from March 1, 2005, to July 31, 2008, were considered for this pilot randomized clinical trial. Twenty-seven patients were included in the study and followed up from March 15, 2005, through April 30, 2009. After randomization, patients receiving PDT were treated according to the Treatment of Age-Related Macular Degeneration With Photodynamic Therapy protocol, whereas patients receiving intravitreal bevacizumab injection, after a loading phase of 3 monthly injections, were examined monthly and re-treated on the basis of detection of fluid on optical coherence tomography and/or leakage on fluorescein angiography. MAIN OUTCOME MEASURES: The primary outcome measure was the 5- and 15-letter change on the Early Treatment of Diabetic Retinopathy Study charts at 12-month examinations compared with baseline. Secondary outcomes included central macular thickness changes. RESULTS: Thirteen and 14 patients were randomized to PDT and bevacizumab treatment, respectively. At the 12-month examination, 5 of 14 eyes treated with bevacizumab and 0 of 13 eyes treated with PDT experienced a best-corrected visual acuity gain of greater than 3 lines (P = .04). Twelve eyes in the bevacizumab group and 6 eyes in the PDT group gained more than 1 line (P = .04). The central macular thickness showed a progressive reduction in both subgroups without a significant difference compared with the baseline values. CONCLUSIONS: Greater beneficial effects can be achieved using intravitreal bevacizumab injection rather than PDT for the treatment of subfoveal CNV secondary to MC. Larger multicenter investigations are needed to confirm our preliminary results. Application to Clinical Practice Currently, there is no precise indication regarding the best therapeutic approach to subfoveal CNV secondary to MC. This investigation was designed to verify whether intravitreal bevacizumab injection has a more beneficial effect with respect to PDT.
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