Guideline-Directed Low-Density Lipoprotein Cholesterol Management After Acute Ischemic Stroke: Findings from a National Health Care Service

Abstract

Patients with ischemic stroke are at high risk for future cardiovascular events and should be treated intensively with lipid-modifying agents. Combination lipid-lowering therapies are often needed to achieve updated guideline-directed treatment goals. However, real-world data on intensification of lipid-lowering therapies and attainment of low-density lipoprotein cholesterol (LDL-C) targets early after ischemic stroke are limited. We extracted data from the largest healthcare provider in Israel on patients hospitalized with acute ischemic stroke between January 2020 and February 2022. Included were 3,027 patients surviving ≥1 year after stroke, with documented LDL-C levels and lipid-lowering medications at 2 time periods (0 to 3 months and 6 to 12 months after discharge). Participants were classified according to preexisting stroke and/or coronary artery disease. The use of combination lipid-lowering therapy (ezetimibe and/or proprotein convertase subtilisin/kexin type 9 [monoclonal antibodies] inhibitor plus statin) in the study population increased between the 2 timepoints from 3.6% to 5.1%, reaching 10.5% in those with previous coronary artery disease and stroke. LDL-C levels <70 and <55 mg/100 ml were attained by 42.3% and 22.9% of patients early after hospitalization, and in 49.5% and 27.1% during 6 to 12 months after hospitalization, respectively. Attainment of guideline-recommended LDL-C goals was higher in patients treated with combination lipid-lowering therapies and in those with preexisting cardiovascular disease. In conclusion, despite the advances in drug development and the availability of several mechanisms to lower cholesterol levels, the attainment of guideline-recommended LDL-C targets after acute ischemic stroke is suboptimal. Intensification of treatment with combination lipid-lowering therapies after hospitalization is uncommonly performed in clinical practice, even in those with preexisting cardiovascular disease.

Keywords: Lipid-lowering therapy; hyperlipidemia; low-density lipoprotein cholesterol; stroke.