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Cerebrovascular reactivity as a determinant of deep white matter hyperintensities in migraine

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Title
Cerebrovascular reactivity as a determinant of deep white matter hyperintensities in migraine
Author(s)
Mi Ji Lee; Bo-Yong Park; Soohyun Cho; Hyunjin Park; Chin-Sang Chung
Publication Date
2019-01
Journal
NEUROLOGY, v.92, no.4, pp.342 - 350
Publisher
LIPPINCOTT WILLIAMS & WILKINS
Abstract
Objective To evaluate the association between the cerebrovascular reactivity to carbon dioxide (CO2- CVR) and the deep white matter hyperintensity (WMH) burden in patients with migraine. Methods A total of 86 nonelderly patients with episodic migraine without vascular risk factors and 35 headache-free controls underwent 3T MRI. Deep WMHs were quantified with a segmentation method developed for nonelderly migraineurs. The interictal CO2-CVR was measured with transcranial Doppler with the breath-holding method. The mean breath-holding index of the bilateral middle cerebral arteries (MCA-BHI) was square root transformed and analyzed with univariate and multivariate logistic regression models to determine its association with the highest tertiles of deep WMH burden (number and volume). Results A low MCA-BHI was independently associated with the highest tertile of deep WMH number in patients with migraine (adjusted odds ratio [OR] 0.02, 95% confidence interval [CI] 0.0007–0.63, p = 0.026). In controls, the MCA-BHI was not associated with deep WMH number. Interaction analysis revealed that migraine modified the effect of MCA-BHI on deep WMH number (p for interaction = 0.029). The MCA-BHI was not associated with increased deepWMHvolume in both patients and controls. Age was independently associated with deep WMH volume in patients (adjusted OR 1.07, 95% CI 1.004–1.15, p = 0.037). Conclusions In this study, we found a migraine-specific association between a reduced CVR to apnea and increased number of deep WMHs in healthy, nonelderly patients with migraine. A dysfunctional vascular response to apnea may predispose migraineurs to an increased risk of WMHs. © 2019 American Academy of Neurology
URI
https://pr.ibs.re.kr/handle/8788114/5741
ISSN
0028-3878
Appears in Collections:
Center for Neuroscience Imaging Research (뇌과학 이미징 연구단) > Journal Papers (저널논문)
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