Observational studyLipids in health and disease2026
Lipoprotein(a) and large artery atherosclerosis: results from the BIOSIGNAL study.
Observational study in Lipids in health and disease, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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12 authors.
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Abstract
backgroundLipoprotein(a) (Lp(a)) is a causal risk-factor for atherosclerotic cardiovascular disease including acute ischemic stroke (AIS). The underlying pathomechanisms mediating this risk are less well understood, especially in AIS caused by large artery atherosclerosis (LAA). In this observational cohort study, we evaluated the association of Lp(a) with markers of LAA, namely carotid intima media thickness (cIMT) and the presence of extra- or intracranial vessel narrowing plaques.
methodsAmong participants of the BIOSIGNAL cohort study we determined Lp(a) levels within 24 h after symptom onset in 1161 AIS patients from the single center of Zurich. cIMT was determined using a semi-automated computerized edge tracking software, internal carotid artery (ICA) stenosis was graded according to the North American Symptomatic Carotid Endarterectomy Trial (NASCET) criteria, intracranial ultrasound was performed by transcranial color-coded duplex (TCCD).
resultsHigher Lp(a) levels were not associated with an increased cIMT in univariable or multivariable regression models containing known cardiovascular risk factors. Higher Lp(a) levels were not associated with the presence of neither extracranial high-grade ICA-stenosis nor significant intracranial stenosis assessed by neurovascular ultrasound.
conclusionIn AIS patients higher Lp(a) levels were not associated with clinical markers of atherosclerotic burden despite its association with LAA-stroke etiology and an increased risk for stroke recurrence.
trial registrationDate of registration: 17–10-2014. Registration-URL: http://www.clinicaltrials.gov ; Unique identifier: NCT-02274727.
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