Achilles Tendon Xanthoma Thickness and Carotid Intima-Media Thickness in a Patient With Heterozygous Familial Hypercholesterolemia on PCSK9 Inhibition: A Case Report and Literature Review
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Updated: Dec 4, 2025

Calcification of Vascular Smooth Muscle Cells and Imaging of Aortic Calcification and Inflammation
Published on: May 31, 2016
Loba Alam1, Glenmore Lasam1, Robert Fishberg2
1Internal Medicine, Overlook Medical Center, Summit, USA.
Abstract:
Ultrasound-guided measurement of carotid intima-media thickness can be used as a surrogate marker to predict future risk of atherosclerotic cardiovascular disease, and to understand the efficacy of lipid-lowering drugs. Aggressive lipid-lowering drugs such as proprotein convertase subtilisin/kexin type 9 (PCSK9) inhibitors have been shown to reduce carotid artery plaque burden, total cholesterol, and low-density lipoprotein-c in patients with heterozygous familial hypercholesterolemia (FH). We describe a patient with heterozygous FH treated with PCSK9 inhibitor over the course of two years, and the drug's impact on carotid intima-media thickness, Achilles tendon thickness, and cardiovascular disease risk reduction.
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