Atorvastatin treatment and carotid plaque morphology in first-ever atherosclerotic transient ischemic attack/stroke: a case-control study.
J Stroke Cerebrovasc Dis
; 24(1): 138-43, 2015 Jan.
Article
em En
| MEDLINE
| ID: mdl-25440329
ABSTRACT
BACKGROUND:
A relationship between echolucency of carotid plaques and the consequent risk of ipsilateral ischemic stroke has been observed. An aggressive lipid-lowering therapy may increase the echogenicity of carotid plaque in patients with elevated low-density lipoprotein cholesterol levels. The aim of this study is to prospectively evaluate the long-term effect of high-dose atorvastatin on carotid plaque morphology in patients with first-ever transient ischemic attack or stroke.METHODS:
All patients with symptomatic first ischemic atherosclerotic cerebrovascular event occurred within the previous 10 days were enrolled. Carotid Doppler ultrasound of the neck vessels with 7-11 MHz probe for the definition of the atherosclerotic carotid framework was performed. The analysis of the gray-scale median (GSM) of each plate was carried out with image processing software.RESULTS:
A total of 240 symptomatic plaques were included and divided into 3 groups 80 in group A (atorvastatin 80 mg), 80 in group B (atorvastatin 40 mg), and 80 to group C (no atorvastatin). GSM score increases significantly more extensive in group A than in group B (+48.65 vs. +39.46, P < .02) and group C (+48.65 vs. 19.3, P = .0002). An inverse association between reduction of low-density lipoprotein and the increase in the GSM score (r = -.456, P = .007) has been observed. Moreover, the reduction of high-sensitive C-reactive protein correlates inversely with the increase of the GSM (r = -.398, P = .021).CONCLUSIONS:
Dose-dependent effect of atorvastatin on symptomatic carotid plaque morphology may suggest a specific role of this drug in the atherosclerotic stroke prevention.Palavras-chave
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Base de dados:
MEDLINE
Assunto principal:
Pirróis
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Doenças das Artérias Carótidas
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Ataque Isquêmico Transitório
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Inibidores de Hidroximetilglutaril-CoA Redutases
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Acidente Vascular Cerebral
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Placa Aterosclerótica
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Ácidos Heptanoicos
Tipo de estudo:
Clinical_trials
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Diagnostic_studies
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Observational_studies
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Risk_factors_studies
Idioma:
En
Revista:
J Stroke Cerebrovasc Dis
Ano de publicação:
2015
Tipo de documento:
Article