Lipoprotein (a) and carotid atherosclerosis in young patients with stroke
Nathalie Nasr1, Jean Bernard Ruidavets, Ahmed Farghali
1Service de Neurologie Vasculaire and INSERM U858-Team 09, Département d'Epidémiologie, Toulouse University Hospital, Hôpital Rangueil, 1, av Prof Jean Poulhès, 31059 Toulouse Cedex 9, France. nasr.n@chu-toulouse.fr
Insights
High lipoprotein (a) levels are linked to carotid atherosclerosis in young adults experiencing ischemic stroke. This association is strong, graded, and independent of common risk factors.
Area of Science:
- Cardiovascular Medicine
- Neurology
- Clinical Research
Background:
- Elevated lipoprotein (a) is a known risk factor for carotid atherosclerosis in older individuals.
- The relationship between lipoprotein (a) and carotid atherosclerosis in younger stroke patients remains understudied.
Purpose of the Study:
- To investigate the association between lipoprotein (a) levels and carotid atherosclerosis in young adults (16-54 years) with ischemic stroke.
- To determine if this association is independent of traditional cardiovascular risk factors.
Main Methods:
- Retrospective analysis of 196 patients aged 16-54 treated for acute ischemic stroke.
- Carotid atherosclerosis was graded using carotid duplex imaging (no atherosclerosis, plaque without stenosis, stenosis ≥50%).
- Polynomial logistic regression was used for multivariate analysis.
Main Results:
- A significant graded association was observed between lipoprotein (a) plasma concentration and the severity of carotid atherosclerosis (P<0.001).
- The association remained significant across different grades of atherosclerosis.
- This relationship was independent of traditional risk factors like cholesterol.
Conclusions:
- Lipoprotein (a) plasma concentration is positively associated with carotid atherosclerosis in young adults with ischemic stroke.
- The association is strong, graded, and not influenced by conventional risk factors.
- Lipoprotein (a) may be a crucial, independent risk marker for atherosclerosis in younger stroke populations.
Background And Purpose:
Elevated lipoprotein (a) concentration is associated with carotid atherosclerosis in middle-aged and older patients with ischemic stroke. This association has not been explored in young patients with stroke.
Methods:
A retrospective analysis of data from patients aged 16 to 54 years consecutively treated for acute ischemic stroke in a tertiary stroke unit during 4.5 years was performed. We graded carotid atherosclerosis using carotid duplex as: no atherosclerosis (A); plaque without stenosis (B); or stenosis≥50% (C).
Results:
One hundred ninety-six patients were included (male/female: 119/77; mean age±SD: 44.3±8.6 years): 115 in Group A; 67 in Group B; and 14 in Group C. Multivariate analysis using polynomial logistic regression showed a graded association of lipoprotein (a) plasma concentration with carotid atherosclerosis (P<0.001).
Conclusions:
Our results showed a positive association of lipoprotein (a) plasma concentration with carotid atherosclerosis in young adults with ischemic stroke. This association was strong, graded, and independent of traditional risk factors including cholesterol.
Related Concept Videos
Atherosclerosis I: Introduction
Atherosclerosis III: Management
Atherosclerosis II: Clinical Manifestations and Diagnostic Tests
Peripheral Artery Disease I: Introduction
Ischemic Stroke l: Introduction
Atherosclerosis IV: Nursing Management
