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Sean Tierney
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Most patients with peripheral vascular disease may be reassured that, with respect to their legs, the condition usually runs a benign course. Less than one third of patients will require any surgical or radiological intervention and only 5% will have amputation. However, peripheral vascular disease is an independent predictor of increased risk of cardiovascular death. Half of patients presenting with peripheral vascular disease have symptoms of coronary artery disease or electrocardiographic abnormality, 90% have abnormalities on coronary angiography, and 40% have duplex evidence of carotid artery disease.
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Symptomatic peripheral vascular disease carries at least a
30% risk of death within five years and almost 50% within 10 years, primarily due to myocardial infarction (60%) or stroke (12%). The
risks are more than doubled in patients with severe disease (requiring
surgery), but even asymptomatic patients (ankle brachial pressure index
<0.9) have a twofold to fivefold increased risk of fatal or non-fatal
cardiovascular
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