Peripheral artery disease risk factors: A focus on lipoprotein(a)

Area of Science:

• Cardiovascular Medicine
• Atherosclerosis Research
• Lipidology

Background:

• A strong association exists between elevated lipoprotein(a) [Lp(a)] levels and coronary heart disease.
• The role of Lp(a) in peripheral artery disease (PAD) and carotid atherosclerosis is less understood.
• Current therapeutic options to lower Lp(a) are unavailable.

Purpose of the Study:

• To review and synthesize the current evidence on the relationship between Lp(a), PAD, and carotid atherosclerosis.
• To evaluate the significance of Lp(a) in the development, progression, and complications of atherosclerotic plaques in these vascular beds.
• To establish Lp(a) as a potential target for managing residual vascular risk in PAD and carotid atherosclerosis patients.

Main Methods:

• Systematic literature review of studies investigating Lp(a) in relation to PAD and carotid atherosclerosis.
• Analysis of epidemiological, genetic, and clinical data.
• Synthesis of findings to assess the impact of Lp(a) on atherosclerotic disease outcomes.

Main Results:

• Evidence suggests a potential link between high Lp(a) and PAD/carotid atherosclerosis, though less conclusive than for coronary heart disease.
• Lp(a) may contribute to plaque development, progression, and instability in peripheral and carotid arteries.
• Understanding Lp(a)'s role is crucial for future risk stratification and therapeutic strategies.

Conclusions:

• Lipoprotein(a) is an emerging, significant vascular risk factor for peripheral artery disease and carotid atherosclerosis.
• Further research is needed to elucidate Lp(a)'s precise mechanisms in these conditions.
• The development of Lp(a)-lowering therapies holds promise for reducing residual vascular risk in affected patients.