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Factors associated with increased white matter hyperintense lesion (WMHI) load in patients with systemic lupus erythematosus (SLE).

Abstract：

:Introduction White matter hyperintense (WMHI) lesions are the most common finding in magnetic resonance imaging (MRI) of the brain in patients with systemic lupus erythematosus (SLE). Objective The objective of this article is to determine the clinical factors associated with an increase in WMHI lesion load among SLE patients. Method A total of 83 SLE patients with MRI of the brain from National University of Malaysia Medical Centre were included. The WMHI lesion load was determined using the Scheltens score and Fazekas scale, and their distribution was divided into the deep white matter (DWMHI) and periventricular (PVH) regions. The clinical correlates of WMHI lesions were initially determined using univariate analyses and subsequently multivariable regression analyses were performed to determine the independent factors of increased WMHI lesion load. Results MRI of the brain of 46 patients who had WMHI lesions were compared with 37 patients with normal MRI. We found significant association between the presence of WMHI lesions and age, presence of cerebral infarcts, positive antiphospholipid antibody (aPL), active disease, neuropsychiatric lupus (NPSLE) and disease damage. Age, SLEDAI scores, cerebral infarcts and disease damage were significantly associated with higher DWMHI and PVH Scheltens scores. Meanwhile, patients with active lupus nephritis (LN), lower serum albumin and more severe proteinuria were associated with larger Fazekas WMHI lesions. Multivariable regression analysis revealed that the independent factors associated with presence of WMHI lesions were positive aPL and SLEDAI scores ( p < 0.05). Higher WMHI Scheltens scores in both DWMHI and PVH were associated with presence of cerebral infarct but higher PVH lesion load was significantly associated with active SLE disease. Conclusion Presence of WMHI lesions in SLE was significantly associated with cerebral infarcts, aPL and high general SLE activity, suggesting both inflammation and ischaemia as the underlying pathology of these lesions.

journal_name

Lupus

journal_title

Lupus

authors

Shaharir SS,Osman SS,Md Rani SA,Sakthiswary R,Said MSM

doi

10.1177/0961203317707062

subject

Has Abstract

pub_date

2018-01-01 00:00:00

pages

25-32

issue

eissn

0961-2033

issn

1477-0962

journal_volume

pub_type

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Factors associated with increased white matter hyperintense lesion (WMHI) load in patients with systemic lupus erythematosus (SLE).