A systematic review of etiopathogenesis and treatment modalities for Moyamoya disease
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Introduction
Moyamoya disease (MMD) is a rare and chronic cerebrovascular disease characterized by progressive stenosis or occlusion of the blood vessels within the terminal intracranial aspect of the internal carotid artery and the circle of Willis, leading to the compensatory development of a fragile collateral vessel network at the base of the brain. These vascular features are responsible for the recurrent ischemic and/or hemorrhagic strokes seen in affected patients. Numerous studies have attempted to clarify the clinical features of Moyamoya, including its etiopathology and interventions. In recent years, the development of neuroimaging and surgical techniques has enhanced the understanding of MMD in patients. The purpose of this review is to discuss the hypothesized etiopathogenesis, clinical manifestations, and the current possible treatment options available for Moyamoya disease.
Methods
The PRISMA protocol was utilized to perform an extensive literature search on Google Scholar, Scopus, Web of Science, and PubMed for articles about etiopathogenesis and clinical presentation of Moyamoya disease and the treatment protocols followed in different parts of the world. A comprehensive analysis was also conducted for original articles to better understand the possible clinical presentation and diagnostic criteria used.
Results
Based on the literature review, the RNF213 mutation, mitochondrial dysfunction, and misregulation of growth factors in endothelial cells are the most acceptable etiopathogenesis of MMD via their involvement in neurovascular inflammation.
Conclusion
The diagnostic test of choice is magnetic resonance angiography while direct & indirect revascularization surgeries are both effective and established treatments for managing symptoms of Moyamoya disease.
