Advances in cerebrovascular reserve function assessment for moyamoya disease
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Published on: May 4, 2015
Siyu Chen1,2, Tianrui Yu1,2, Yuanyuan Xiang2
1Department of Neurology, School of Clinical Medicine, Jiujiang University, Jiujiang, Jiangxi, China.
Abstract:
Moyamoya disease (MMD) is a rare cerebrovascular disease characterised by gradual progressive stenosis and occlusion of the terminal internal carotid arteries, anterior cerebral arteries and proximal middle cerebral arteries bilaterally. This pathology leads to the formation of a compensatory and fragile collateral vascular network at the brain's base. With disease progression, MMD may result in ischaemic or haemorrhagic stroke. However, the lack of reliable and effective methods to assess disease progression leaves many patients at high risk of stroke without timely clinical intervention. Therefore, determining the disease course and assessing stroke risk are critical. Cerebrovascular reserve (CVR) reflects the ability of brain tissue to increase blood flow under stress. CVR evaluation assists clinicians in understanding MMD severity, guiding therapeutic decisions and determining prognosis. This narrative review analyses recent literature, highlights the advantages and disadvantages of various CVR assessment techniques, and discusses the interplay between CVR and MMD. In addition, it examines the role of CVR in evaluating disease progression and associated treatments.
Insights
Moyamoya disease (MMD) progression is hard to track, increasing stroke risk. Cerebrovascular reserve (CVR) assessment offers a way to evaluate MMD severity and guide treatment for better patient outcomes.
Area of Science:
- Neurology
- Vascular Biology
- Medical Imaging
Background:
- Moyamoya disease (MMD) involves progressive stenosis of major cerebral arteries, leading to fragile collateral networks.
- MMD significantly increases the risk of ischemic or hemorrhagic stroke.
- Current methods for assessing MMD progression and stroke risk are insufficient, delaying critical interventions.
Purpose of the Study:
- To review current literature on cerebrovascular reserve (CVR) assessment techniques in Moyamoya disease.
- To analyze the advantages and disadvantages of different CVR evaluation methods.
- To discuss the role of CVR in monitoring MMD progression and guiding treatment strategies.
Main Methods:
- Narrative review of recent scientific literature.
- Analysis of various CVR assessment techniques.
- Discussion of the relationship between CVR and MMD pathology.
Main Results:
- Cerebrovascular reserve (CVR) reflects the brain's capacity to augment blood flow under stress.
- CVR evaluation is crucial for understanding MMD severity and prognosis.
- Different CVR assessment techniques have distinct benefits and limitations.
Conclusions:
- Accurate assessment of CVR is vital for managing Moyamoya disease.
- Understanding CVR aids in predicting stroke risk and optimizing therapeutic decisions.
- Further research into CVR assessment methods can improve clinical management of MMD patients.