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Miller R, Unda SR, Holland R, Altschul DJ. Western Moyamoya Phenotype: A Scoping Review. Cureus 2021; 13:e19812. [PMID: 34956795 PMCID: PMC8693830 DOI: 10.7759/cureus.19812] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/22/2021] [Indexed: 11/25/2022] Open
Abstract
Moyamoya, a rare angiographic finding, is characterized by chronic and progressive stenosis at the terminal end of the internal carotid artery, followed by collateralization of the cerebral vasculature at the base of the skull. Coined by Suzuki and Takaku in 1969, the term "moyamoya" means a "puff of smoke" in Japanese, a reference to the angiographic appearance of moyamoya collateralization. Moyamoya is most commonly found in East Asian countries, where much governmental and civilian effort has been expended to characterize this unique disease process. However, despite its rarity, the occurrence of moyamoya in Western countries is associated with significant divergence regarding incidence, gender, sex, age at diagnosis, clinical presentation, and outcomes. Here, we attempted to review the Western literature on moyamoya presentation using the PubMed database to characterize the Western phenotype of moyamoya. We were guided by the Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for scoping reviews (PRISMA-ScR). We reviewed papers generated from a search with keywords "moyamoya case report," those reported from a Western institution, and those reported on a relevant association. Our scoping review demonstrated various clinical associations with moyamoya. Moreover, we summarized the demographic profile and clinical symptomatology, as well as reported disease associations to better elucidate the Western phenotype of moyamoya.
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Affiliation(s)
- Raphael Miller
- Neurological Surgery, Montefiore/Albert Einstein College of Medicine, Bronx, USA
| | - Santiago R Unda
- Neurological Surgery, Montefiore/Albert Einstein College of Medicine, Bronx, USA
| | - Ryan Holland
- Neurological Surgery, Montefiore/Albert Einstein College of Medicine, Bronx, USA
| | - David J Altschul
- Neurological Surgery, Montefiore/Albert Einstein College of Medicine, Bronx, USA
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Ribigan AC, Badea RS, Ciocan A, Stefan D, Casaru B, Ioan P, Antochi F, Băjenaru O. Moyamoya-like vasculopathy associated to MYH9-related thrombocytopenia manifested by multiple cerebral ischemic lesions: a case report. BMC Neurol 2020; 20:352. [PMID: 32950057 PMCID: PMC7501715 DOI: 10.1186/s12883-020-01927-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Accepted: 09/10/2020] [Indexed: 12/13/2022] Open
Abstract
Background Moyamoya-like vasculopathy (MMV) and myosin heavy chain 9-related platelet disorders (MYH9-RPDs) or macrothrombocitopenias are rare syndromes. Their association is even more infrequent. Case presentation A 29-year-old female with history of MYH9-RPD, presented to our department for episodes suggesting transient ischemic attacks. Based on the imaging studies that revealed multiple ischemic lesions and stenoses of both distal internal carotid arteries and the arteries of the circle of Willis, the diagnosis of MMV was established. The treatment with Verapamil was initiated, leading to symptom remission. Two months later, the patient presented one episode of dysarthria, followed by involuntary movements of the right upper limb, few days later. Long-term electroencephalogram monitoring depicted epileptiform abnormalities. Resolution of symptoms was obtained after increasing the dose of Verapamil, and initiating Levetiracetam. Conclusions This is an interesting case of a patient with two rare pathologies, who presented with cerebral ischemic strokes. To our knowledge there are few cases described in the literature presenting with cerebral hemorrhagic events but none of them with multiple cerebral ischemic lesions. As these cases are very rare, it is important to gather evidence regarding the best approach and treatment strategy.
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Affiliation(s)
- Athena Cristina Ribigan
- Neurology Department, University Emergency Hospital Bucharest, Splaiul Independentei, number 169, district 5, 050098, Bucharest, Romania. .,Department of Clinical Neurosciences, University of Medicine and Pharmacy Carol Davila Bucharest, Dionisie Lupu street, number 37, district 1, 020021, Bucharest, Romania. .,Transcranial Doppler Monitoring and Neurosonology Laboratory, Romanian Academy, Bucharest, Splaiul Independentei, number 169, district 5, 050098, Bucharest, Romania.
| | - Raluca Stefania Badea
- Neurology Department, University Emergency Hospital Bucharest, Splaiul Independentei, number 169, district 5, 050098, Bucharest, Romania.,Department of Clinical Neurosciences, University of Medicine and Pharmacy Carol Davila Bucharest, Dionisie Lupu street, number 37, district 1, 020021, Bucharest, Romania.,Transcranial Doppler Monitoring and Neurosonology Laboratory, Romanian Academy, Bucharest, Splaiul Independentei, number 169, district 5, 050098, Bucharest, Romania
| | - Alida Ciocan
- Neurology Department, University Emergency Hospital Bucharest, Splaiul Independentei, number 169, district 5, 050098, Bucharest, Romania
| | - Dana Stefan
- Neurology Department, University Emergency Hospital Bucharest, Splaiul Independentei, number 169, district 5, 050098, Bucharest, Romania
| | - Bogdan Casaru
- Neurology Department, University Emergency Hospital Bucharest, Splaiul Independentei, number 169, district 5, 050098, Bucharest, Romania
| | - Patricia Ioan
- Neurology Department, University Emergency Hospital Bucharest, Splaiul Independentei, number 169, district 5, 050098, Bucharest, Romania
| | - Florina Antochi
- Neurology Department, University Emergency Hospital Bucharest, Splaiul Independentei, number 169, district 5, 050098, Bucharest, Romania.,Transcranial Doppler Monitoring and Neurosonology Laboratory, Romanian Academy, Bucharest, Splaiul Independentei, number 169, district 5, 050098, Bucharest, Romania
| | - Ovidiu Băjenaru
- Neurology Department, University Emergency Hospital Bucharest, Splaiul Independentei, number 169, district 5, 050098, Bucharest, Romania.,Department of Clinical Neurosciences, University of Medicine and Pharmacy Carol Davila Bucharest, Dionisie Lupu street, number 37, district 1, 020021, Bucharest, Romania.,Transcranial Doppler Monitoring and Neurosonology Laboratory, Romanian Academy, Bucharest, Splaiul Independentei, number 169, district 5, 050098, Bucharest, Romania
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