Carotid total plaque area as a marker of asymptomatic lower extremity arterial disease

Author:

Genkel V. V.1ORCID,Shaposhnik I. I.1ORCID,Lebedev E. V.1ORCID,Salashenko A. O.1ORCID

Affiliation:

1. South-Ural State Medical University

Abstract

Objective: to examine the prognostic value of ultrasound markers of carotid atherosclerosis in relation to the presence of asymptomatic lower extremity peripheral artery disease (PAD). Materials and Methods: the study included 193 patients with carotid atherosclerosis. All patients underwent duplex ultrasound scanning (DUS) of carotid and lower limb arteries. The carotid plaque score (cPS) was determined as the total height of all plaques in the carotid arteries. The carotid total plaque area (cTPA) was estimated in the longitudinal position, the area of plaque was measured in the manual trace mode.Results: asymptomatic lower extremity PAD was diagnosed in 31.6% of patients. The increase in cTPA, in contrast to cPS and the degree of carotid stenosis, was independent predictor of lower extremity PAD and was associated with an increase in the relative risk of its presence by 6.78 times (95% CI 2.48-18.5; p <0.0001). cTPA ≥42.5 mm2 made it possible to diagnose asymptomatic lower extremity PAD with a sensitivity of 70.2% and specificity of 73.0%. Conclusion: In patients with carotid atherosclerosis among carotid atherosclerosis markers only cTPA, in contrast to cPS and the degree of carotid stenosis, had an independent predictive value regarding the presence of asymptomatic lower extremity PAD.

Publisher

Rostov State Medical University

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