title: Epidemiology of Peripheral Arterial Disease and Critical Limb Ischemia.
abstract: With a rise in the aging popluation, the prevalence of peripheral arterial disease (PAD) is markedly increasing. The overall disease prevalence of PAD is in the range of 3%-10%, which increases to 15%-20% in persons older than 70 years of age. Given this upward trend in disease prevalence, the economic and societal burden of PAD would be considerable. The subgroup of patients who develop critical limb ischemia (CLI) represents the most challenging population to manage medically, surgically, and endovascularly. Patients with symptomatic PAD and CLI have an increased risk for death and cardiovascular events, especially in those with CLI who carry with them a substantial risk of limb loss. Advances in medical, surgical, and endovascular techniques have shown excellent outcomes in the treatment of these patients, however the optimal management paradigm has not been elucidated. This article reviews the classification and epidemiology, risk factors, natural history, and health care costs associated with PAD and CLI.
authors.affiliation: Department of Surgery, Medical College of Wisconsin, Milwaukee, WI.
authors.forename: Anahita
authors.initials: A
authors.lastname: Dua
authors.affiliation: Department of Surgery, Medical College of Wisconsin, Milwaukee, WI. Electronic address: cjlee@mcw.edu.
authors.forename: Cheong J
authors.initials: CJ
authors.lastname: Lee
mesh_terms: D000328:Adult; D017677:Age Distribution; D000368:Aged; D000671:Amputation, Surgical; D058070:Asymptomatic Diseases; D016638:Critical Illness; D057510:Endovascular Procedures; D005260:Female; D017048:Health Care Costs; D006801:Humans; D015994:Incidence; D007511:Ischemia / Q000000981:diagnostic imaging / Q000191:economics / Q000453:epidemiology* / Q000628:therapy; D023821:Limb Salvage; D035002:Lower Extremity / Q000098:blood supply*; D008297:Male; D008875:Middle Aged; D058729:Peripheral Arterial Disease / Q000000981:diagnostic imaging / Q000191:economics / Q000453:epidemiology* / Q000628:therapy; D015995:Prevalence; D012307:Risk Factors; D013997:Time Factors; D016896:Treatment Outcome; D014656:Vascular Surgical Procedures
keywords: Amputations; Critical Limb Ischemia; Peripheral Arterial Disease; atherosclerosis; claudication