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. 2024 Oct 1;25(10):749-756.
doi: 10.2459/JCM.0000000000001653. Epub 2024 Aug 1.

Prognostic impact of peripheral artery disease-related parameters in patients with acute coronary syndrome

Gabriele Masini  1 , Luna Gargani, Carmela Morizzo, Giacinta Guarini, Ida Rebecca Bort, Matteo Baldini, Pietro Paolo Tamborrino, Carlo Vitale, Carlo Palombo, Raffaele De Caterina
Affiliations

Prognostic impact of peripheral artery disease-related parameters in patients with acute coronary syndrome

Gabriele Masini et al. J Cardiovasc Med (Hagerstown). .

Abstract

Background: Lower extremity arterial disease (LEAD) and increased aortic stiffness are associated with higher mortality in patients with chronic coronary syndrome, while their prognostic significance after an acute coronary syndrome (ACS) is less known.

Methods: We analyzed prevalence, clinical phenotypes and association of LEAD - assessed by the ankle-brachial index (ABI) - and increased aortic stiffness - assessed by the aortic pulse wave velocity (PWV) - with all-cause mortality and major adverse cardiovascular events (MACE) in patients admitted with an ACS.

Results: Among 270 patients admitted for ACS (mean age 67 years, 80% males), 41 (15%) had an ABI ≤0.9, with 14 of them (34%) presenting with intermittent claudication (symptomatic LEAD). Patients with symptomatic LEAD, compared with those with asymptomatic LEAD or without LEAD, had higher prevalence of cardiovascular risk factors, lower estimated glomerular filtration rate and higher high-sensitivity C-reactive protein. Patients with LEAD, either symptomatic or asymptomatic, more frequently presented with non-ST-elevation myocardial infarction and more frequently had multivessel coronary artery disease. Both symptomatic and asymptomatic LEAD were significantly associated with all-cause mortality after adjustment for confounders, including multivessel disease or carotid artery disease (hazard ratio 4.03, 95% confidence interval 1.61-10.08, P < 0.01), whereas PWV was not associated with the outcome in the univariable model. LEAD and PWV were not associated with a higher risk of MACE (myocardial infarction or unstable angina, stroke, or transient ischemic attack).

Conclusions: LEAD, either clinical or subclinical, but not increased aortic stiffness, is an independent predictor of all-cause mortality in patients admitted for ACS.

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