Frontal lobe atrophy is associated with small vessel disease in ischemic stroke patients.

Abstract:

BACKGROUND:The pathogenesis of frontal lobe atrophy (FLA) in stroke patients is unclear. We aimed to ascertain whether subcortical ischemic changes were more associated with FLA than with parietal lobe atrophy (PLA) and temporal lobe atrophy (TLA). METHODS:Brain magnetic resonance images (MRIs) from 471 Chinese ischemic stroke patients were analyzed. Lobar atrophy was defined by a widely used visual rating scale. All patients were divided into non-severe, mild-moderate, and severe atrophy of the frontal, parietal, and temporal lobe groups. The severity of white matter lesions (WMLs) was rated with the Fazekas' scale. Clinical and radiological features were compared among the groups. Subsequent logistic regressions were performed to determine the risk factors of atrophy and severe atrophy of the frontal, parietal and temporal lobes. RESULTS:The frequency of FLA in our cohort was 36.9% (174/471). Severe FLA occurred in 30 (6.4%) patients. Age, previous stroke, and periventricular hyperintensities (PVH) (odds ratio (OR)=1.640, p=0.039) were independent risk factors of FLA. Age and deep white matter hyperintensities (DWMH) (OR=3.634, p=0.002) were independent risk factors of severe FLA. PVH and DWMH were not independent risk factors of PLA and TLA. CONCLUSION:Frontal lobe atrophy in ischemic stroke patients may be associated with small vessel disease. The association between WMLs and FLA was predominant over atrophy of the parietal and temporal lobes, which suggests that the frontal lobe may be vulnerable to subcortical ischemic changes.

journal_name

Clin Neurol Neurosurg

authors

Chen Y,Chen X,Xiao W,Mok VC,Wong KS,Tang WK

doi

10.1016/j.clineuro.2009.08.019

subject

Has Abstract

pub_date

2009-12-01 00:00:00

pages

852-7

issue

10

eissn

0303-8467

issn

1872-6968

pii

S0303-8467(09)00233-9

journal_volume

111

pub_type

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