摘要
Chronic stable angina affects approximately 10 million Americans,of whom more than 50%are older than 65 years.Angina is a more common manifestation of coronary heart disease in women than in men.The growing prevalence of recurring ischemia is probably due to residual coronary artery disease after percutaneous coronary intervention or coronary artery bypass grafting.Those with angina have a high socioeconomic burden that signifi cantly limits functional capacity and impairs quality of life,and includes the high cost of care.The presence of common comorbidities,including diabetes,is associated with poorer outcomes.
