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moyamoya disease AND pediatric

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https://www.readbyqxmd.com/read/29143295/posterior-circulation-involvement-in-pediatric-and-adult-patients-with-moyamoya-disease-a-single-center-experience-in-574-patients
#1
Meng Zhao, Dong Zhang, Shuo Wang, Yan Zhang, Rong Wang, Xiaofeng Deng, Jizong Zhao
The importance of the posterior cerebral artery (PCA) involvement in moyamoya disease has been highlighted in recent years. However, few studies compared the impact of PCA lesions in moyamoya disease between pediatric and adult patients. We conducted this study to summarize the clinical features of moyamoya patients with PCA lesions and describe the difference between pediatric and adult patients. We reviewed the records of 696 consecutive moyamoya vasculopathy patients from 2009 to 2015. The Suzuki and the Miyamoto stages were used to evaluate the steno-occlusive lesions of the anterior and posterior arteries...
November 15, 2017: Acta Neurologica Belgica
https://www.readbyqxmd.com/read/29138020/moyamoya-syndrome-in-a-pediatric-patient-with-congenital-human-immunodeficiency-virus-type-1-infection-resulting-in-intracranial-hemorrhage
#2
Junko Yamanaka, Ikuma Nozaki, Mizue Tanaka, Hideko Uryuu, Noriko Sato, Takeji Matsushita, Hiroyuki Shichino
In the era of Antiretroviral Therapy (ART) in which human immunodeficiency virus type 1 (HIV-1) infection affected children can expect a better prognosis, the importance of careful follow up of pediatric HIV-1 cases for neurological complications has been growing. We present a case of hemorrhagic Moyamoya syndrome in a child with congenital HIV-1 infection. A 10-year-old girl was referred to our hospital for the treatment of Pneumocystis Jirovecii Pneumonia (PCP: Pneumocystis pneumonia). Her HIV-1 control was poor and Moyamoya syndrome was found during the opportunistic infection screening at admission...
November 11, 2017: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/29128331/risk-factors-for-epilepsy-recurrence-after-revascularization-in-pediatric-patients-with-moyamoya-disease
#3
Yonggang Ma, Meng Zhao, Qian Zhang, Xingju Liu, Dong Zhang, Shuo Wang, Yan Zhang, Maogui Li, Jizong Zhao
OBJECTIVE: We aimed to explore the risk factors of seizure recurrence and the optimal surgical procedure for epileptic pediatric patients with moyamoya disease (MMD). METHODS: We reviewed 696 consecutive patients with MMD admitted to our hospital from 2009 to 2015. Pediatric patients with MMD who had seizures before revascularization were identified. We summarized the characteristics of seizures in pediatric patients with MMD and analyzed the predictive factors of recurrent seizure events...
November 8, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/29107436/the-collateral-circulation-in-moyamoya-disease-a-single-center-experience-in-140-pediatric-patients
#4
Meng Zhao, Dong Zhang, Shuo Wang, Yan Zhang, Xiaofeng Deng, Jizong Zhao
BACKGROUND: The patterns and clinical significance of the presence of collaterals in moyamoya disease has not been elucidated thoroughly. We aimed to summarize the clinical features of collaterals in pediatric moyamoya disease. BASIC PROCEDURES: We reviewed consecutive pediatric patients with moyamoya vasculopathy who were admitted to our hospital from 2009 to 2015. Only pediatric moyamoya patients with digital subtraction angiography examinations were included in this study...
September 14, 2017: Pediatric Neurology
https://www.readbyqxmd.com/read/29076784/direct-versus-indirect-revascularization-in-the-treatment-of-moyamoya-disease
#5
Seong-Eun Park, Ju-Seong Kim, Eun Kyung Park, Kyu-Won Shim, Dong-Seok Kim
OBJECTIVE For patients with moyamoya disease (MMD), surgical intervention is usually required because of progressive occlusion of the internal carotid artery. The indirect bypass method has been widely accepted as the treatment of choice in pediatric patients. However, in adult patients with MMD, the most effective treatment method remains a matter of debate. Here, the authors compared the clinical outcomes from MMD patients treated with either extracranial-intracranial arterial bypass (EIAB; 43 hemispheres) or modified encephaloduroarteriosynangiosis (mEDAS; 75 hemispheres) to investigate whether mEDAS is an effective surgical method for treating adults with symptomatic MMD...
October 27, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29046137/magnetic-resonance-imaging-mri-and-digital-subtraction-angiography-investigation-of-childhood-moyamoya-disease
#6
Peiji Song, Jing Qin, Han Lun, Penggang Qiao, Anming Xie, Gongjie Li
Because digital subtraction angiography (DSA) is not an ideal angiographic examination for moyamoya disease in the pediatric population, magnetic resonance angiography (MRA) provides a noninvasive contrast-free angiographic examination; whereas magnetic resonance imaging (MRI) provides superior spatial resolution and soft-tissue contrast for lesion assessment. Ninety patients with moyamoya disease were examined by MRI and DSA to assess the distribution of lesions and their diagnostic agreement between modalities...
November 2017: Journal of Child Neurology
https://www.readbyqxmd.com/read/29030229/elevation-of-proenkephalin-143-183-in-cerebrospinal-fluid-in-moyamoya-disease
#7
Kinya Yokoyama, Mikio Maruwaka, Kazuhiro Yoshikawa, Yoshio Araki, Sho Okamoto, Masaki Sumitomo, Akino Kawamura, Yusuke Sakamoto, Kenzo Shimizu, Takashi Izumi, Toshihiko Wakabayashi
BACKGROUND: In moyamoya disease (MMD), the causes of differences in clinical features between children and adults and of the dramatic temporal changes in moyamoya vessels are poorly understood. We previously discovered elevated levels of m/z 4588 and m/z 4473 peptides in cerebrospinal fluid (CSF) in MMD patients. This study examined the amino acid sequences of these peptides and quantified in specimens. METHODS: The m/z 4588 and m/z 4473 peptides in CSF from MMD patients were purified and concentrated by high-performance liquid chromatography and ultrafiltration...
October 10, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28991692/altered-expression-of-circular-rnas-in-moyamoya-disease
#8
Meng Zhao, Faliang Gao, Dong Zhang, Shuo Wang, Yan Zhang, Rong Wang, Jizong Zhao
Moyamoya disease (MMD) is the most common pediatric cerebrovascular disease in Eastern Asian countries but the etiology is not well understood. Circular RNAs (circRNAs) have been implicated in various biological processes, but their role in the development of MMD remains unclear. To address this issue, we carried out a comparative circRNA microarray analysis of blood samples obtained from patients with MMD and healthy subjects and identified 146 circRNAs that were differentially expressed between the two groups...
October 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28989169/moyamoya-disease-in-an-18-month-old-female-caucasian-complicated-by-cerebral-hyperperfusion-syndrome-following-indirect-revascularization
#9
James Murchison, John M Wilson, Coby Ray, Jessica Ginsberg, Laszlo Nagy
BACKGROUND Cerebral hyperperfusion syndrome is a rare complication of indirect revascularization due to moyamoya disease, but has not been reported previously in the pediatric population. We present a case of an 18-month-old girl with moyamoya disease that was treated with bilateral pial synangiosis and had complications consistent with cerebral hyperperfusion syndrome. This case report discusses the pathophysiological mechanisms involved in cerebral hyperperfusion in moyamoya syndrome. CASE REPORT An 18-month-old female Caucasian presented with seizures and weakness of the left side...
October 9, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28982784/clinical-and-imaging-characteristics-of-arteriopathy-subtypes-in-children-with-arterial-ischemic-stroke-results-of-the-vips-study
#10
M Wintermark, N K Hills, G A DeVeber, A J Barkovich, T J Bernard, N R Friedman, M T Mackay, A Kirton, G Zhu, C Leiva-Salinas, Q Hou, H J Fullerton
BACKGROUND AND PURPOSE: Childhood arteriopathies are rare but heterogenous, and difficult to diagnose and classify, especially by nonexperts. We quantified clinical and imaging characteristics associated with childhood arteriopathy subtypes to facilitate their diagnosis and classification in research and clinical settings. MATERIALS AND METHODS: The Vascular Effects of Infection in Pediatric Stroke (VIPS) study prospectively enrolled 355 children with arterial ischemic stroke (2010-2014)...
October 5, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28862519/novel-insights-into-symptomatology-of-moyamoya-disease-in-pediatric-patients-survey-of-symptoms-suggestive-of-orthostatic-intolerance
#11
Haruto Uchino, Ken Kazumata, Masaki Ito, Naoki Nakayama, Kiyohiro Houkin
OBJECTIVE A specific population of young patients with moyamoya disease (MMD) persistently experience physical symptoms not attributable to focal ischemia. These symptoms, highly suggestive of orthostatic intolerance (also termed "orthostatic dysregulation"), were investigated and reported as potential determinants of quality of life in young MMD patients. METHODS Forty-six patients (6-30 years of age) were selected from a group of 122 patients who were diagnosed with MMD before 18 years of age. The authors administered a structured questionnaire consisting of 11 items based on screening checklists published in the Japanese clinical guidelines for juvenile orthostatic dysregulation in young patients...
November 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/28844915/moyamoya-disease-in-a-8-year-old-boy-direct-bypass-surgery-in-a-province-of-peru
#12
Joham Choque-Velasquez, Roberto Colasanti, Danil A Kozirev, Juha Hernesniemi, Akitsugu Kawashima
BACKGROUND: Pediatric moyamoya cases may be very arduous, even more in a developing country where the access to specialized centers may be prevented by different factors. CASE DESCRIPTION: Herein, we report a challenging case, which was managed in the new Neurosurgical Center of Trujillo, regarding the direct anastomosis between the left superficial temporal artery and a cortical branch of the left middle cerebral artery in a 8-year-old Peruvian boy with moyamoya disease...
August 24, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28814371/dental-management-considerations-in-a-pediatric-patient-with-moyamoya-disease
#13
Htet Bo, David Avenetti, Evelina Kratunova
Moyamoya disease is a rare progressive cerebral arteriopathy associated with risk of ischemic and hemorrhagic brain complications. The dental care of affected individuals should be performed in a pain- and stress-free manner to decrease the chance of occurrence of episodes of hypocapnia, hypercapnia, hypotension, hypovolemia, and hypothermia. Dental treatment may be provided in an outpatient dental setting or in a hospital setting, but both venues require interdisciplinary collaboration to ensure safe delivery of patient care...
May 15, 2017: Journal of Dentistry for Children
https://www.readbyqxmd.com/read/28715924/moyamoya-disease-in-children-results-from-the-international-pediatric-stroke-study
#14
Sarah Lee, Michael J Rivkin, Adam Kirton, Gabrielle deVeber, Jorina Elbers
This study aimed to describe children with moyamoya disease from an international multicenter stroke database, and explore risk factors for stroke recurrence. We reviewed data of children >28-days old with moyamoya disease enrolled in the International Pediatric Stroke Study from January 2003 to March 2013. A total of 174 children from 32 sites and 14 countries had moyamoya disease; median age 7.4 years, 49% male. Of these, 90% presented with ischemic stroke, 7.5% with transient ischemic attack, and 2.5% with hemorrhagic stroke...
October 2017: Journal of Child Neurology
https://www.readbyqxmd.com/read/28686127/effectiveness-of-surgical-revascularization-for-stroke-prevention-in-pediatric-patients-with-sickle-cell-disease-and-moyamoya-syndrome
#15
COMPARATIVE STUDY
Wuyang Yang, Risheng Xu, Jose L Porras, Clifford M Takemoto, Syed Khalid, Tomas Garzon-Muvdi, Justin M Caplan, Geoffrey P Colby, Alexander L Coon, Rafael J Tamargo, Judy Huang, Edward S Ahn
OBJECTIVE Sickle cell disease (SCD) in combination with moyamoya syndrome (MMS) represents a rare complication of SCD, with potentially devastating neurological outcomes. The effectiveness of surgical revascularization in this patient population is currently unclear. The authors' aim was to determine the effectiveness of surgical intervention in their series of SCD-MMS patients by comparing stroke recurrence in those undergoing revascularization and those undergoing conservative transfusion therapy. METHODS The authors performed a retrospective chart review of patients with MMS who were seen at the Johns Hopkins Medical Institution between 1990 and 2013...
September 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/28666911/geometrical-complexity-of-cortical-microvascularization-in-moyamoya-disease
#16
Katsuya Komatsu, Takeshi Mikami, Hime Suzuki, Yukinori Akiyama, Rei Enatsu, Masahiko Wanibuchi, Nobuhiro Mikuni
BACKGROUND: Dilatation of the microvascular diameter is recognized in moyamoya disease and referred to as microvascularization. The purpose of this study was to characterize the cortical microvascularization in moyamoya disease using imaging analysis, and to explore the developmental mechanism of the collateral network around the cortical surface. METHODS: A total of 20 hemispheric sides of 14 patients with moyamoya disease were included in this study. From the intraoperative images, cortical surface images were extracted, and binary images were subsequently created...
October 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28620564/moyamoya-syndrome-in-a-child-with-neurofibromatosis-type-1-magnetic-resonance-imaging-as-a-tool-for-clinical-decision-making
#17
Jonathan Mayl, Hanisha Patel, Tushar Chandra
Moyamoya syndrome is a rare cerebrovasculopathy of unknown etiology which is associated with multiple risk factors. Moyamoya was first discovered in Japan and is reported to have an increased prevalence in the Japanese population. The term "Moyamoya" translates into "puff of smoke" and is named after the finding of the collateral cerebral vasculature that develops secondary to occlusion of an internal carotid artery at the entrance into the circle of Willis. This collateral vasculature characterizes the disease...
May 9, 2017: Curēus
https://www.readbyqxmd.com/read/28327981/long-term-outcome-after-multiple-burr-hole-surgery-in-children-with-moyamoya-angiopathy-a-single-center-experience-in-108-hemispheres
#18
Thomas Blauwblomme, Bertrand Mathon, Olivier Naggara, Manoelle Kossorotoff, Marie Bourgeois, Stéphanie Puget, Philippe Meyer, Valentine Brousse, Marianne de Montalembert, Francis Brunelle, Michel Zerah, Christian Sainte-Rose
BACKGROUND: Multiple burr hole (MBH) surgery is a simple, safe, and effective indirect technique of revascularization in moyamoya angiopathy (MM). However, it is not yet recognized as a first-line treatment. OBJECTIVE: To assess the long-term outcome and perioperative complications in a large single-center cohort of children with MM who underwent burr hole surgery. METHODS: This study is a retrospective analysis of children who underwent surgery for MM in a national reference center for pediatric stroke between 1999 and 2015...
June 1, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28291429/pathophysiological-consideration-of-medullary-streaks-on-flair-imaging-in-pediatric-moyamoya-disease
#19
Hime Suzuki, Takeshi Mikami, Tomoyoshi Kuribara, Kazuhisa Yoshifuji, Katsuya Komatsu, Yukinori Akiyama, Hirofumi Ohnishi, Kiyohiro Houkin, Nobuhiro Mikuni
OBJECTIVE Medullary streaks detected on fluid-attenuated inversion recovery (FLAIR) imaging have been considered to be reflected ischemic regions in pediatric moyamoya disease. The purpose of this study was to evaluate these medullary streaks both clinically and radiologically and to discuss associated pathophysiological concerns. METHODS The authors retrospectively reviewed data from 14 consecutive pediatric patients with moyamoya disease treated between April 2009 and June 2016. Clinical and radiological features and postoperative imaging changes were analyzed...
May 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/28291427/incidence-clinical-features-and-treatment-of-familial-moyamoya-in-pediatric-patients-a-single-institution-series
#20
Jonathan Gaillard, Jennifer Klein, Daniel Duran, Armide Storey, R Michael Scott, Kristopher Kahle, Edward R Smith
OBJECTIVE Limited data exist on familial moyamoya in children. The purpose of this study was to characterize presentation and outcomes of pediatric moyamoya patients who have relatives diagnosed with moyamoya. METHODS The authors performed a single-institution retrospective analysis of a case series including all surgically treated children with moyamoya with first- or second-degree relatives with moyamoya. Clinical and radiographic characteristics were analyzed, along with surgical outcomes. RESULTS A total of 537 patients underwent surgery for moyamoya during the study period...
May 2017: Journal of Neurosurgery. Pediatrics
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