Retinopathy and Risk of Congestive Heart Failure

CONTEXT Congestive heart failure (CHF) affects a substantial proportion of adults including those without preexisting coronary heart disease. The pathogenesis of CHF is uncertain, but microvascular disease has been hypothesized as a possible factor. OBJECTIVE To determine the relationship of retinopathy, a marker of systemic microvascular disease, to risk of CHF. DESIGN, SETTING, AND PARTICIPANTS Population-based, prospective 7-year cohort study in 4 US communities using the Atherosclerosis Risk in Communities Study database. Participants (n = 11 612, aged 49 to 73 years) had retinal photographs taken between 1993 and 1995. The photographs were graded according to a standardized protocol for the presence of retinopathy (eg, microaneurysms, retinal hemorrhages, soft exudates), arteriovenous nicking, focal arteriolar narrowing, and generalized arteriolar narrowing. MAIN OUTCOME MEASURES Association between retinopathy and incident CHF, identified from hospitalization and death records. RESULTS The 7-year cumulative incidence of CHF was 5.4% (492 events). Participants with retinopathy had a higher incidence of CHF compared with those without retinopathy (15.1% vs 4.8%, P