Exploring the association between hypertension and atherosclerotic cardiovascular disease in adults with familial hypercholesterolemia: insights from the HELLAS-FH registry

Abstract Aim While the link between hypertension and atherosclerotic cardiovascular disease (ASCVD) is well-established, its impact on patients with familial hypercholesterolemia (FH) remains less explored. This study aims to assess the association between hypertension and ASCVD in adult FH patients. Material-Methods: Participants from the HELLAS-FH registry were divided into two groups based on the presence or absence of hypertension. We compared demographic information, lipid profile and history of ASCVD between the two groups. Results The study included 2367 FH patients, of whom 602 (25.4%) had a diagnosis of hypertension. Hypertensive patients were generally older and exhibited higher rates of ASCVD risk factors such as increased body mass index (28.6 vs 26.3 kg/m2), waist circumference (98 cm in men and 97 cm in women compared with 95 cm and 88 cm in non-hypertensive counterparts), and more prevalent history of smoking (44.2% vs 35.8%) (p<0.01 for all comparisons). Patients with hypertension had higher triglyceride levels (148 vs 123 mg/dL; p<0.05), lower high-density lipoprotein cholesterol (HDL-C) levels (48 vs 53 mg/dL; p<0.05) while total cholesterol and non-HDL-C levels were not significantly different. When adjusted for age, sex, and major ASCVD risk factors, hypertension was significantly associated with prevalent coronary artery disease (CAD) (adjusted odds ratio [OR] 3.10; 95% CI 2.29-4.19; p<0.001), ischemic stroke (OR 1.89; 95% CI 1.02-3.49; p=0.04), and peripheral arterial disease (PAD) (OR 3.15; 95% CI 1.62-6.13; p<0.001). Conclusions Hypertension is frequent and is independently associated with an increased risk of CAD, stroke, and PAD in patients with FH.