Vasomotor reactivity comparison in multiple sclerosis patients with white matter lesions and nonmultiple sclerosis subjects with white matter lesions in brain magnetic resonance imaging

Authors
Fariborz Khorvash 1
Ali Masaeli 2
Vahid Shaygannejad 1
Mohammad Saadatnia 1
1 Isfahan Neurosciences Research Center, Alzahra Hospital, Isfahan, Iran
2 Department of Neurology, Isfahan University of Medical Sciences, Isfahan, Iran
Abstract
Background: It has been recognized a close relationship between multiple sclerosis (MS) lesions and the cerebral vasculature. In this study, we observed cerebrovascular vasomotor reactivity difference between the MS patients and the non-MS migraine individuals.
Materials and Methods: This prospective study was conducted on 40 patients with MS referring to Neurology Clinic of Isfahan Al-Zahra Hospital in 2012. The patients were compared with the same number of non-MS migraine individuals. Both groups had white matter lesions in brain magnetic resonance imaging. To evaluate the rate of cerebral artery vasomotor reactivity, transcranial Doppler device was used, and breath-holding index (BHI) was separately calculated for each middle cerebral artery. Main flow velocity (MFV) was determined by continuously recording of a period of 5 min of breathing the air in the room. The obtained data were analyzed using SPSS software version 18 and t-test, Chi-square and analysis of variance tests.
Results: The mean values of MFV at rest was not significantly different between cases and control groups (46.21 ± 4.20 vs. 44.69 ± 4.34, P = 0.115) but difference between cases and control groups in MFV apnea was significant (59.11 ± 5.10 vs. 55.35 ± 6.03, P = 0.004). BHI in the control group was 0.79 ± 0.26 and in the case group was 0.93 ± 0.20 and these differences was found to be significant (P < 0.05).
Conclusion: The mean of BHI and cerebral vasomotor reactivity in MS patients was more than the non-MS migraine individuals, although the mechanism of this process still remains unknown.

Keywords

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Advanced Biomedical Research
Volume 2016, February
February 2016
Pages 1-6