Abstract:
:Child patients with Moyamoya disease initially present with ischemic symptoms. However, the long-term risk of intracranial hemorrhage for childhood Moyamoya disease is unknown. Hemodynamic overload to the fragile collateral vessels has been considered to cause hemorrhage. We reviewed angiograms to evaluate the effect of encephalo-myo-synangiosis (EMS) on abnormally dilated collateral vessels in 13 child patients with Moyamoya disease. EMS was performed on 24 sides in 13 patients ranging from 5 to 14 years of age. Post-operative angiography (6-88 months after surgery) revealed good revascularizations through EMS (larger than one-third of the middle cerebral artery (MCA) distribution) in 18 sides (75%) and smaller revascularizations in 6 sides (25%). In cases with a good revascularization through EMS, reduction of the abnormal collateral vessels was observed not only in the basal Moyamoya vessels (94% of sides) but also in the medullary arteries derived from the choroidal arteries (62% of sides), which are considered to cause intraventricular hemorrhages in adult patients. It is suggested that EMS may reduce the hemodynamic load on dilated collateral vessels and, subsequently, the long-term risk of intracranial hemorrhage in childhood Moyamoya disease.
journal_name
Neurol Resjournal_title
Neurological researchauthors
Irikura K,Miyasaka Y,Kurata A,Tanaka R,Yamada M,Kan S,Fujii Kdoi
10.1080/01616412.2000.11740680subject
Has Abstractpub_date
2000-06-01 00:00:00pages
341-6issue
4eissn
0161-6412issn
1743-1328journal_volume
22pub_type
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journal_title:Neurological research
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更新日期:1998-03-01 00:00:00
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journal_title:Neurological research
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journal_title:Neurological research
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更新日期:1990-03-01 00:00:00
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更新日期:2014-05-01 00:00:00