The burden of angina pectoris and its complications [corrected].

Between 10 to 30% of patients with coronary disease still suffer from symptoms of angina pectoris in contemporary clinical practice. This article summarizes analytic tools for measuring angina, as well as, its prevalence based on community based surveys, registries and in randomized controlled trials. Additionally, the impact of angina symptoms on patients' survival rates, functional status, quality of life and health-related costs is reviewed. The effectiveness of treatment, revascularization and medical therapies, on reducing angina symptoms is also reviewed. Copyright (c) 2007 Wiley Periodicals, Inc.