Guideline-directed low-density lipoprotein cholesterol management following acute ischemic stroke: findings from Clalit health services

Abstract

Abstract Background 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 (2019) guideline-directed treatment goals. However, real-world data on intensification of lipid-lowering therapies and attainment of low-density lipoprotein cholesterol (LDL-C) targets after ischemic stroke are limited. Methods Data from a single national health care service on patients hospitalized with acute ischemic stroke between Jan. 2020 and Feb. 2022. Included were 3027 patients surviving ≥1-year post-stroke, with documented LDL-C levels and lipid-lowering medications at 2 timepoints (<3 months and during 6-12 months post-discharge). Participants were classified according to preexisting stroke and/or coronary artery disease (CAD). Results LDL-C levels <70 mg/dL and <55 mg/dL were attained by 42.3% and 22.9% of patients early post-hospitalization, and in 49.5% and 27.1% during 6-12 months post-hospitalization, respectively. Attainment of guideline-recommended LDL-C goals was higher in those with preexisting cardiovascular disease. The use of combination lipid-lowering therapy (ezetimibe and/or PCSK9 inhibitor plus statin) increased between the 2 timepoints: from 2% to 3.2% in those without prior stroke and/or CAD, and from 5.4% to 7% in those with prior stroke and/or CAD. Conclusions 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 6-12 months following hospitalization is uncommonly performed in clinical practice, even in those with preexisting cardiovascular disease.