Intermittent Claudication

Abstract

Intermittent claudication is the most common symptom in patients with peripheral arterial disease (PAD). As such, it is mandatory for clinicians to treat both the PAD-specific symptoms (to decrease functional impairment and thereby improve quality- of-life, as well as to decrease rates of amputation) and the underlying systemic atherosclerosis (and thereby reduce cardiovascular ischemic events, especially myocardial infarction and stroke). Most patients with claudication can successfully decrease their exertional limb symptoms via a combination of exercise (preferably supervised) and pharmacotherapeutic interventions (eg, cilostazol). Endovascular revascularization currently serves as an effective therapy for patients with high-grade stenoses of the proximal limb arterial segments, (eg, the distal aorta, common iliac artery, or external iliac artery, and occasionally the proximal common femoral artery). Surgical revascularization usually is reserved for patients who present with severe aortoiliac disease in whom long-term patency is likely to be achieved (eg, aortobifemoral or femoral-femoral bypass) and who have a low cardiovascular perioperative ischemic risk. Patients who undergo successful revascularization also are likely to benefit from exercise rehabilitation programs. All patients with PAD, of any severity, must successfully normalize atherosclerosis risk factors and use antiplatelet therapies. Such interventions include complete smoking cessation, glycemic control, normalization of blood pressure (less than 130/90 mm Hg), and lowering of low-density lipoprotein (LDL) cholesterol to less than 100 mg/dL. Antiplatelet agents (eg, clopidogrel, aspirin) should be prescribed to decrease rates of cardiovascular ischemic events in all patients with PAD, unless otherwise contraindicated.