Regression of peripapillary choroidal neovascularization after oscillatory transpupillary thermotherapy and anti-VEGF pharmacotherapy
Abstract
We prospectively evaluated a new treatment for recalcitrant choroidal neovascularization (CNV) in 4 patients. We used an infrared laser (810 nm) in oscillatory thermotherapy (OTT) mode combined with indocyanine green (ICG) dye, utilizing the beneficial effect of both thermotherapy and photodynamic therapy. We describe preliminary experiences with ICG-assisted OTT (I-OTT) combined with intravitreal bevacizumab/dexamethasone for refractory peripapillary CNV resistant to standard therapy. Clinical examination, funduscopy, fluorescein angiography, and optical coherence tomography were performed at baseline and postoperatively. Infrared laser spot size was approximately one-half the lesion size (oscillation 2-3 Hz). Intravitreal injections of bevacizumab (1.25 mg) and dexamethasone (1000 µg) were done during the same visit. Mean follow-up was 12.5 months (range 5-17). Mean energy level was 325 mW (range 200-500) in oscillatory mode (2-3 Hz/sec) pre- and post-ICG infusion. Indocyanine green dose was approximately 1 mg/kg (75 mg/patient). All patients had a single treatment. Mean visual acuity improved in 1 patient from 20/60 to 20/30 and remained the same in the other 3 (20/20, 20/40, and 20/400). At final examination, there was no e...Continue Reading
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