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Hemorrhagic Factors of Moyamoya Disease

Hemorrhagic Factors of Moyamoya Disease COMMENTARY 44.7%. Funaki et al investigated 75 hemorrhagic hemispheres n this issue, Liu et al found that choroidal collateral anastomo- of 75 patients and found that choroidal anastomosis and poste- Isis was a predictor of the recurrent hemorrhage of Moyamoya rior cerebral artery involvement were factors associated with disease (MMD), especially lateral posterior choroidal artery anas- posterior hemorrhage. They concluded that choroidal anasto- tomosis. This study will further deepen our understanding of the mosis might be considered a potential source of posterior risk factors of MMD rebleeding. hemorrhage at high risk of rebleeding. The predominant feature of the pathology of MMD is now There are 2 main causes of intracranial bleeding in MMD: known to be progressive stenosis of the carotid artery termina- rupture of dilated, fragile Moyamoya vessels (perforating tions and the development of dilated, fragile perforating arteries, arteries) and rupture of circle of Willis aneurysms. Another which are termed “Moyamoya vessels.” Although MMD is an rare cause of bleeding in adult patients is rupture of the uncommon cerebrovascular disease, it is an important cause of dilated collateral arteries on the brain surface. In this study, stroke. Most pediatric patients have ischemic attacks, whereas the authors report that http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png American Journal of Neuroradiology American Journal of Neuroradiology

Hemorrhagic Factors of Moyamoya Disease

Lv, X.
American Journal of Neuroradiology , Volume 40 (10) – Oct 1, 2019
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Publisher
American Journal of Neuroradiology
ISSN
0195-6108
eISSN
1936-959X
DOI
10.3174/ajnr.A6217
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Abstract

COMMENTARY 44.7%. Funaki et al investigated 75 hemorrhagic hemispheres n this issue, Liu et al found that choroidal collateral anastomo- of 75 patients and found that choroidal anastomosis and poste- Isis was a predictor of the recurrent hemorrhage of Moyamoya rior cerebral artery involvement were factors associated with disease (MMD), especially lateral posterior choroidal artery anas- posterior hemorrhage. They concluded that choroidal anasto- tomosis. This study will further deepen our understanding of the mosis might be considered a potential source of posterior risk factors of MMD rebleeding. hemorrhage at high risk of rebleeding. The predominant feature of the pathology of MMD is now There are 2 main causes of intracranial bleeding in MMD: known to be progressive stenosis of the carotid artery termina- rupture of dilated, fragile Moyamoya vessels (perforating tions and the development of dilated, fragile perforating arteries, arteries) and rupture of circle of Willis aneurysms. Another which are termed “Moyamoya vessels.” Although MMD is an rare cause of bleeding in adult patients is rupture of the uncommon cerebrovascular disease, it is an important cause of dilated collateral arteries on the brain surface. In this study, stroke. Most pediatric patients have ischemic attacks, whereas the authors report that

Journal

American Journal of Neuroradiology – American Journal of Neuroradiology

Published: Oct 1, 2019

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