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Intravitreal anti-VEGF therapy for neovascular age-related macular degeneration and the risk of stroke.

The purpose of this study was to compare the vascular event rate in AMD patients treated with an intravitreal VEGF inhibitor with a historical control group treated with photodynamic therapy. We reviewed medical records of 83 patients treated with intravitreal anti-VEGF for AMD between 2005-2007, and 60 patients treated with PDT between 2001-2004. Mean follow-up in the anti-VEGF group was 40 months versus 95 months in the PDT group. Mean age (76 +/- 9 years, versus 74 +/- 10 years, p=n.s.) and cardiovascular risk factor profile were similar. Vascular event rates in each group were 2.6 per 100 patient years versus 2.3 per 100 patient years, (p = n.s). Age over 80 years was associated with an increased risk of a vascular event (odds ratio = 1.113, p<0.05). Despite the high prevalence of risk factors in AMD patients, the incidence of vascular events was low and associated with older age rather than therapy received.