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Lipoprotein A and the Association With Peripheral Arterial Disease: A Review of the Risk in Peripheral Arterial
1Division of Cardiology, Virginia Commonwealth University Veterans Affairs Medical Center, Richmond, VA 23249, USA.
Abstract:
Peripheral arterial disease (PAD) is a global atherosclerotic disease which can lead to acute limb ischemia, chronic limb-threatening ischemia, and limb amputation. It has similar risk factors to coronary artery disease (CAD). Elevated lipoprotein A (Lp[a]) is associated with CAD, myocardial infarction, and PAD. Patients with PAD can have CAD and polyvascular disease. An extensive PubMed and Cochrane library search was performed in April 2025 using the words "Lipoprotein A and PAD", "Elevated lipoprotein A and PAD", and "High Lipoprotein A and PAD" to obtain relevant English articles for this systematic review. An elevated Lp(a) may enhance the risk of PAD. Elevated Lp(a) can amplify the risk of CAD, PAD, and polyvascular disease. It may portend worse outcomes in patients with CAD and PAD. It can increase the risk of acute limb ischemia, coronary revascularization, peripheral revascularization, cardiovascular death, and all-cause mortality. Hence, elevated Lp(a) may serve as a risk factor for patients with CAD who could potentially develop PAD. No currently approved medical therapy aimed at Lp(a) reduction exists; only lipoprotein apheresis is approved to lower Lp(a) levels in these patients. This systematic review discusses the role of an elevated Lp(a) in PAD, clinical research in PAD with elevated Lp(a), and the current treatment for PAD and elevated Lp(a).
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