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Wang XP, Zou ZX, Bao XY, Wang QN, Ren B, Yu D, Zhang Q, Liu JQ, Hao FB, Gao G, Guo QB, Fu HG, Li JJ, Wang MJ, Liu SM, Duan L. Clinical and genetic factors associated with contralateral progression in unilateral moyamoya disease: Longitudinal and Cross-Sectional Study. Heliyon 2024; 10:e26108. [PMID: 38404780 PMCID: PMC10884840 DOI: 10.1016/j.heliyon.2024.e26108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 01/12/2024] [Accepted: 02/07/2024] [Indexed: 02/27/2024] Open
Abstract
Objective This study aimed to explore the long-term outcome of unilateral moyamoya disease and predict the clinical and genetic factors associated with contralateral progression in unilateral moyamoya disease. Methods We retrospectively recruited unilateral moyamoya disease patients with available genetic data who underwent encephaloduroarteriosynangiosis (EDAS) surgery at our institution from January 2009 to November 2017. Long-term follow-up data, including clinical outcomes, angiographic features, and genetic information, were analyzed. Results A total of 83 unilateral moyamoya disease patients with available genetic data were enrolled in our study. The mean duration of clinical follow-up was 7.9 ± 2.0 years. Among all patients, 19 patients demonstrated contralateral progression to bilateral disease. Heterozygous Ring Finger Protein 213 p.R4810K mutations occurred significantly more frequently in unilateral moyamoya disease patients with contralateral progression. Furthermore, patients with contralateral progression typically demonstrated an earlier age of onset than those with non-progressing unilateral moyamoya disease. In the contralateral progression group, posterior circulation involvement was observed in 11 (11/19, 57.9%) patients compared to 12 (12/64, 18.8%) in the non-contralateral progression group (P = 0.001). The time to peak of cerebral perfusion and neurological status showed significant postoperative improvement. Conclusion Long-term follow-up revealed that the EDAS procedure might provide benefits for unilateral moyamoya disease patients. Ring Finger Protein 213 p.R4810K mutations, younger age, and posterior circulation involvement might predict the contralateral progression of unilateral moyamoya disease.
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Affiliation(s)
- Xiao-Peng Wang
- Medical School of Chinese PLA, Beijing, 100039, China
- Department of Neurosurgery, the First Medical Center of Chinese PLA General Hospital, Beijing, 100039, China
| | - Zheng-Xing Zou
- Department of Neurosurgery, the First Medical Center of Chinese PLA General Hospital, Beijing, 100039, China
| | - Xiang-Yang Bao
- Medical School of Chinese PLA, Beijing, 100039, China
- Department of Neurosurgery, the First Medical Center of Chinese PLA General Hospital, Beijing, 100039, China
| | - Qian-Nan Wang
- Department of Neurosurgery, the Eighth Medical Center of Chinese PLA General Hospital, Beijing, 100000, China
| | - Bin Ren
- Department of Neurosurgery, the First Medical Center of Chinese PLA General Hospital, Beijing, 100039, China
| | - Dan Yu
- Department of Neurosurgery, the Fifth Medical Center of Chinese PLA General Hospital, Beijing, 100071, China
| | - Qian Zhang
- Department of Neurosurgery, the Fifth Medical Center of Chinese PLA General Hospital, Beijing, 100071, China
| | - Jia-Qi Liu
- Department of Neurology, the First Medical Center of Chinese PLA General Hospital, Beijing, 100039, China
| | - Fang-Bin Hao
- Medical School of Chinese PLA, Beijing, 100039, China
- Department of Neurosurgery, the First Medical Center of Chinese PLA General Hospital, Beijing, 100039, China
| | - Gan Gao
- Medical School of Chinese PLA, Beijing, 100039, China
- Department of Neurosurgery, the First Medical Center of Chinese PLA General Hospital, Beijing, 100039, China
| | - Qing-Bao Guo
- Medical School of Chinese PLA, Beijing, 100039, China
- Department of Neurosurgery, the First Medical Center of Chinese PLA General Hospital, Beijing, 100039, China
| | - He-Guan Fu
- Department of Neurosurgery, the Fifth Medical Center of Chinese PLA General Hospital, Beijing, 100071, China
| | - Jing-Jie Li
- Medical School of Chinese PLA, Beijing, 100039, China
- Department of Neurosurgery, the First Medical Center of Chinese PLA General Hospital, Beijing, 100039, China
| | - Min-Jie Wang
- Medical School of Chinese PLA, Beijing, 100039, China
- Department of Neurosurgery, the First Medical Center of Chinese PLA General Hospital, Beijing, 100039, China
| | - Si-Meng Liu
- Medical School of Chinese PLA, Beijing, 100039, China
- Department of Neurosurgery, the First Medical Center of Chinese PLA General Hospital, Beijing, 100039, China
| | - Lian Duan
- Medical School of Chinese PLA, Beijing, 100039, China
- Department of Neurosurgery, the First Medical Center of Chinese PLA General Hospital, Beijing, 100039, China
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Kaur D, Khan H, Grewal AK, Singh TG. Glycosylation: A new signaling paradigm for the neurovascular diseases. Life Sci 2024; 336:122303. [PMID: 38016576 DOI: 10.1016/j.lfs.2023.122303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 11/14/2023] [Accepted: 11/23/2023] [Indexed: 11/30/2023]
Abstract
A wide range of life-threatening conditions with complicated pathogenesis involves neurovascular disorders encompassing Neurovascular unit (NVU) damage. The pathophysiology of NVU is characterized by several features including tissue hypoxia, stimulation of inflammatory and angiogenic processes, and the initiation of intricate molecular interactions, collectively leading to an elevation in blood-brain barrier permeability, atherosclerosis and ultimately, neurovascular diseases. The presence of compelling data about the significant involvement of the glycosylation in the development of diseases has sparked a discussion on whether the abnormal glycosylation may serve as a causal factor for neurovascular disorders, rather than being just recruited as a secondary player in regulating the critical events during the development processes like embryo growth and angiogenesis. An essential tool for both developing new anti-ischemic therapies and understanding the processes of ischemic brain damage is undertaking pre-clinical studies of neurovascular disorders. Together with the post-translational modification of proteins, the modulation of glycosylation and its enzymes implicates itself in several abnormal activities which are known to accelerate neuronal vasculopathy. Despite the failure of the majority of glycosylation-based preclinical and clinical studies over the past years, there is a significant probability to provide neuroprotection utilizing modern and advanced approaches to target abnormal glycosylation activity at embryonic stages as well. This article focuses on a variety of experimental evidence to postulate the interconnection between glycosylation and vascular disorders along with possible treatment options.
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Affiliation(s)
- Dapinder Kaur
- Chitkara College of Pharmacy, Chitkara University, 140401, Punjab, India
| | - Heena Khan
- Chitkara College of Pharmacy, Chitkara University, 140401, Punjab, India
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Ha EJ, Phi JH, Lee JY, Koh EJ, Kim KH, Wang KC, Cho BK, Kim SK. Long-Term Surgical Outcome of Indirect Bypass Surgery in Young Children With Moyamoya Disease. Neurosurgery 2023; 93:901-909. [PMID: 37561505 DOI: 10.1227/neu.0000000000002489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 02/13/2023] [Indexed: 08/11/2023] Open
Abstract
BACKGROUND The prognosis of moyamoya disease (MMD) in young children (younger than 4 years) is worse than that of older adults. The effectiveness of surgery is still inconclusive. OBJECTIVE To evaluate long-term outcomes after indirect bypass in young children with MMD. METHODS A total of 1417 MMD children underwent indirect bypass from August 1988 to October 2020. This study included 135 patients who were younger than 4 years at the time of surgery. The clinical features and surgical outcomes of these patients were assessed. We analyzed the long-term outcome of 102 children who were followed up for more than 5 years (mean: 18.8 years, range: 5-27.3 years). Cross-sectional analysis was performed to evaluate overall outcomes based on the Lansky Play Performance Scale (LPS). The annual risk of symptomatic stroke after surgery was calculated with a person-year method, and the event-free survival rate was evaluated using the Kaplan-Meier method. RESULTS The overall clinical outcome was favorable (LPS ≥ 80) in 88% of the patients. The overall postoperative adverse event rate was 15%, including 1 death. At the last follow-up, 86% of patients who had seizures at diagnosis were seizure-free. During the follow-up, there were 3 symptomatic infarctions on the operated hemisphere (postoperative 3, 3, and 10 months each). There was no hemorrhagic event. The annual infarction rate was 0.16% per person-year. The 20-year event-free survival rates for symptomatic infarction were 97%. CONCLUSION Indirect bypass could provide a satisfactory long-term outcome and prevent recurrent stroke in young children with MMD.
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Affiliation(s)
- Eun Jin Ha
- Department of Neurosurgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul , Republic of Korea
- Division of Pediatric Neurosurgery, Seoul National University Children's Hospital, Seoul , Republic of Korea
- Department of Critical Care Medicine, Seoul National University Hospital, Seoul , Republic of Korea
| | - Ji Hoon Phi
- Department of Neurosurgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul , Republic of Korea
- Division of Pediatric Neurosurgery, Seoul National University Children's Hospital, Seoul , Republic of Korea
| | - Ji Yeoun Lee
- Department of Neurosurgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul , Republic of Korea
- Division of Pediatric Neurosurgery, Seoul National University Children's Hospital, Seoul , Republic of Korea
- Department of Anatomy and Cell Biology, Seoul National University College of Medicine, Seoul , Republic of Korea
| | - Eun Jung Koh
- Department of Neurosurgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul , Republic of Korea
- Division of Pediatric Neurosurgery, Seoul National University Children's Hospital, Seoul , Republic of Korea
| | - Kyung Hyun Kim
- Department of Neurosurgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul , Republic of Korea
- Division of Pediatric Neurosurgery, Seoul National University Children's Hospital, Seoul , Republic of Korea
| | - Kyu-Chang Wang
- Center for Rare Cancers, National Cancer Center, Goyang , Gyeonggi-do , Republic of Korea
| | - Byung-Kyu Cho
- Department of Neurosurgery, Armed Forces Capital Hospital, Seongnam , Gyeonggi-do , Republic of Korea
| | - Seung-Ki Kim
- Department of Neurosurgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul , Republic of Korea
- Division of Pediatric Neurosurgery, Seoul National University Children's Hospital, Seoul , Republic of Korea
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Gao G, Liu SM, Hao FB, Wang QN, Wang XP, Wang MJ, Bao XY, Han C, Duan L. Factors Influencing Collateral Circulation Formation After Indirect Revascularization for Moyamoya Disease: a Narrative Review. Transl Stroke Res 2023:10.1007/s12975-023-01185-x. [PMID: 37592190 DOI: 10.1007/s12975-023-01185-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 08/01/2023] [Accepted: 08/02/2023] [Indexed: 08/19/2023]
Abstract
Indirect revascularization is one of the main techniques for the treatment of Moyamoya disease. The formation of good collateral circulation is a key measure to improve cerebral blood perfusion and reduce the risk of secondary stroke, and is the main method for evaluating the effect of indirect revascularization. Therefore, how to predict and promote the formation of collateral circulation before and after surgery is important for improving the success rate of indirect revascularization in Moyamoya disease. Previous studies have shown that vascular endothelial growth factor, endothelial progenitor cells, Caveolin-1, and other factors observed in patients with Moyamoya disease may play a key role in the generation of collateral vessels after indirect revascularization through endothelial hyperplasia and smooth muscle migration. In addition, mutations in the genetic factor RNF213 have also been associated with this process. This study summarizes the factors and mechanisms influencing collateral circulation formation after indirect revascularization in Moyamoya disease.
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Affiliation(s)
- Gan Gao
- Chinese PLA Medical School, Beijing, China
- Department of Neurosurgery, Chinese PLA General Hospital, 8 Dong-Da Street, Fengtai District, 100071, Beijing, China
| | - Si-Meng Liu
- Chinese PLA Medical School, Beijing, China
- Department of Neurosurgery, Chinese PLA General Hospital, 8 Dong-Da Street, Fengtai District, 100071, Beijing, China
| | - Fang-Bin Hao
- Chinese PLA Medical School, Beijing, China
- Department of Neurosurgery, Chinese PLA General Hospital, 8 Dong-Da Street, Fengtai District, 100071, Beijing, China
| | - Qian-Nan Wang
- Department of Neurosurgery, Chinese PLA General Hospital, 8 Dong-Da Street, Fengtai District, 100071, Beijing, China
| | - Xiao-Peng Wang
- Chinese PLA Medical School, Beijing, China
- Department of Neurosurgery, Chinese PLA General Hospital, 8 Dong-Da Street, Fengtai District, 100071, Beijing, China
| | - Min-Jie Wang
- Chinese PLA Medical School, Beijing, China
- Department of Neurosurgery, Chinese PLA General Hospital, 8 Dong-Da Street, Fengtai District, 100071, Beijing, China
| | - Xiang-Yang Bao
- Department of Neurosurgery, Chinese PLA General Hospital, 8 Dong-Da Street, Fengtai District, 100071, Beijing, China
| | - Cong Han
- Department of Neurosurgery, Chinese PLA General Hospital, 8 Dong-Da Street, Fengtai District, 100071, Beijing, China
| | - Lian Duan
- Department of Neurosurgery, Chinese PLA General Hospital, 8 Dong-Da Street, Fengtai District, 100071, Beijing, China.
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Gao G, Hao F, Wang Q, Wang X, Liu S, Wang M, Guo Q, Li J, Bao X, Han C, Duan L. Surgical outcomes following encephaloduroarteriosynangiosis in moyamoya disease associated with hyperhomocysteinemia. Brain Behav 2023; 13:e3093. [PMID: 37386744 PMCID: PMC10454250 DOI: 10.1002/brb3.3093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 05/11/2023] [Accepted: 05/11/2023] [Indexed: 07/01/2023] Open
Abstract
INTRODUCTION This study investigated the effect of indirect revascularization surgery in adult patients with moyamoya disease (MMD) complicated with hyperhomocysteinemia (HHcy), and the effect of HHcy on the progression of adult MMD. METHODS A retrospective case-control study was conducted in patients with MMD, with or without HHcy (n = 123). Postoperative collateral angiogenesis was evaluated using the Matsushima grading system and disease progression using the Suzuki staging system. Cerebral blood flow was evaluated before and after surgery using dynamic susceptibility contrast magnetic resonance imaging (DSC-MRI) and neurological function prognosis using the improved Rankin score (mRS). Univariate and multivariate logistic regression analyses were performed to determine risk factors for the clinical outcomes. RESULTS There was no significant difference in the Suzuki stage composition ratios between the HHcy group and the non-HHcy group before and after surgery. Non-HHcy patients were more likely to grow new collateral circulating vessels after encephaloduroarteriosynangiosis (EDAS). Moreover, postoperative DSC-MRI indicated that the time to peak significantly improved. CONCLUSIONS HHcy level may be a specific predictor of adverse clinical outcomes after EDAS in patients with MMD and a risk factor for poor collateral circulation and poor prognosis. Patients with MMD complicated with HHcy need to strictly control homocysteine levels before EDAS surgery.
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Affiliation(s)
- Gan Gao
- Chinese PLA Medical SchoolBeijingChina
- Department of NeurosurgeryChinese PLA General HospitalBeijingChina
| | - Fang‐bin Hao
- Chinese PLA Medical SchoolBeijingChina
- Department of NeurosurgeryChinese PLA General HospitalBeijingChina
| | - Qian‐Nan Wang
- Department of NeurosurgeryChinese PLA General HospitalBeijingChina
| | - Xiao‐Peng Wang
- Chinese PLA Medical SchoolBeijingChina
- Department of NeurosurgeryChinese PLA General HospitalBeijingChina
| | - Si‐meng Liu
- Chinese PLA Medical SchoolBeijingChina
- Department of NeurosurgeryChinese PLA General HospitalBeijingChina
| | - Min‐jie Wang
- Chinese PLA Medical SchoolBeijingChina
- Department of NeurosurgeryChinese PLA General HospitalBeijingChina
| | - Qing‐bao Guo
- Chinese PLA Medical SchoolBeijingChina
- Department of NeurosurgeryChinese PLA General HospitalBeijingChina
| | - Jing‐jie Li
- Chinese PLA Medical SchoolBeijingChina
- Department of NeurosurgeryChinese PLA General HospitalBeijingChina
| | - Xiang‐Yang Bao
- Department of NeurosurgeryChinese PLA General HospitalBeijingChina
| | - Cong Han
- Department of NeurosurgeryChinese PLA General HospitalBeijingChina
| | - Lian Duan
- Department of NeurosurgeryChinese PLA General HospitalBeijingChina
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Nomura S, Oka F, Fujii N, Nishimoto T, Ishihara H. Outcome prediction of pediatric moyamoya disease using midterm cerebral blood flow measured between staged anastomoses. Childs Nerv Syst 2023; 39:1851-1859. [PMID: 36811729 DOI: 10.1007/s00381-023-05884-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 02/14/2023] [Indexed: 02/24/2023]
Abstract
PURPOSE Cognitive outcomes of pediatric moyamoya disease are variable and difficult to predict on the basis of initial neurological signs and examinations. To determine the best early time point for outcome prediction, we retrospectively analyzed the correlation between cognitive outcomes and the cerebrovascular reserve capacity (CRC) measured before, between, and after staged bilateral anastomoses. METHODS Twenty-two patients aged 4-15 years were included in this study. CRC was measured before the first hemispheric surgery (preoperative CRC), 1 year after the first surgery (midterm CRC), and 1 year after the surgery on the other side (final CRC). The cognitive outcome was the Pediatric Cerebral Performance Category Scale (PCPCS) grade more than 2 years after the final surgery. RESULTS The 17 patients with favorable outcomes (PCPCS grades 1 or 2) showed a preoperative CRC of 4.9% ± 11.2%, which was not better than that of the five patients with unfavorable outcomes (grade 3; 0.3% ± 8.5%, p = 0.5). The 17 patients with favorable outcomes showed a midterm CRC of 23.8% ± 15.3%, which was significantly better than that of the five patients with unfavorable outcomes (-2.5% ± 12.1%, p = 0.004). The difference was much more significant for the final CRC, which was 24.8% ± 13.1% in the patients with favorable outcomes and -11.3% ± 6.7% in those with unfavorable outcomes (p = 0.00004). CONCLUSION Cognitive outcomes were first clearly discriminated by the CRC after the first-side unilateral anastomosis, which is the optimal early timing for the prediction of individual prognosis.
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Affiliation(s)
- Sadahiro Nomura
- Department of Neurosurgery, Yamaguchi University School of Medicine, Ube, Yamaguchi, Japan.
| | - Fumiaki Oka
- Department of Neurosurgery, Yamaguchi University School of Medicine, Ube, Yamaguchi, Japan
| | - Natsumi Fujii
- Department of Neurosurgery, Yamaguchi University School of Medicine, Ube, Yamaguchi, Japan
| | - Takuma Nishimoto
- Department of Neurosurgery, Yamaguchi University School of Medicine, Ube, Yamaguchi, Japan
| | - Hideyuki Ishihara
- Department of Neurosurgery, Yamaguchi University School of Medicine, Ube, Yamaguchi, Japan
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Northam WT, Slingerland AL, Orbach DB, Smith ER. Magnetic Resonance Imaging/Angiography Versus Catheter Angiography for Annual Follow-up of Pediatric Moyamoya Patients: A Cost Outcomes Analysis. Neurosurgery 2023; 92:1243-1248. [PMID: 36744923 DOI: 10.1227/neu.0000000000002357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Accepted: 11/08/2022] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Digital subtraction angiography (DSA) assesses revascularization in pediatric moyamoya patients after surgery, but MRI and angiography (MRI/A) may provide comparable data. OBJECTIVE To evaluate DSA and MRI/A with respect to clinical utility in postoperative follow-up, complication profile, and relative cost at 1 year. METHODS All pediatric moyamoya patients who received bilateral indirect revascularization between 2011 and 2020 were retrospectively reviewed at 1 institution. Patients who underwent MRI/A-only, DSA-only, or both after 1 year were compared. RESULTS Eighty-two patients were included. At 1 year, patients who underwent either MRI/A (n = 29) or DSA (n = 40) had no significant differences in detection rate of new at-risk hypovascular territories (6.9% vs 2.5%, P = .568) or need for subsequent revascularization beyond the mean 40 ± 24-month follow-up period (3.4% vs 5.0%, P > .9). Among patients who underwent both MRI/A and DSA (n = 13), both studies identified the same at-risk territories. No patients experienced MRI/A-related complications, compared with 3 minor DSA-related complications. The use of MRI/A yielded a 6.5-fold reduction in cost per study vs DSA at 1 year. CONCLUSION Using DSA to follow moyamoya patients after indirect revascularization is generally safe but associated with a low rate of minor complications and a 6.5-fold greater financial cost relative to MRI/A. These data support changing practice to eliminate the use of DSA when following routine bilateral moyamoya cases in the absence of clinical symptoms or specific concerns. Using MRI/A as the primary postoperative follow-up modality in this select population provides noninferior care and greater patient access, while reducing cost and potentially decreasing risk.
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Affiliation(s)
- Weston T Northam
- Department of Neurosurgery, Boston Children's Hospital, Boston, Massachusetts, USA
| | - Anna L Slingerland
- Department of Neurosurgery, Boston Children's Hospital, Boston, Massachusetts, USA
| | - Darren B Orbach
- Department of Neurosurgery, Boston Children's Hospital, Boston, Massachusetts, USA
- Department of Radiology, Boston Children's Hospital, Boston, Massachusetts, USA
| | - Edward R Smith
- Department of Neurosurgery, Boston Children's Hospital, Boston, Massachusetts, USA
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Dorschel KB, Wanebo JE. Physiological and pathophysiological mechanisms of the molecular and cellular biology of angiogenesis and inflammation in moyamoya angiopathy and related vascular diseases. Front Neurol 2023; 14:661611. [PMID: 37273690 PMCID: PMC10236939 DOI: 10.3389/fneur.2023.661611] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Accepted: 01/16/2023] [Indexed: 06/06/2023] Open
Abstract
Rationale The etiology and pathophysiological mechanisms of moyamoya angiopathy (MMA) remain largely unknown. MMA is a progressive, occlusive cerebrovascular disorder characterized by recurrent ischemic and hemorrhagic strokes; with compensatory formation of an abnormal network of perforating blood vessels that creates a collateral circulation; and by aberrant angiogenesis at the base of the brain. Imbalance of angiogenic and vasculogenic mechanisms has been proposed as a potential cause of MMA. Moyamoya vessels suggest that aberrant angiogenic, arteriogenic, and vasculogenic processes may be involved in the pathophysiology of MMA. Circulating endothelial progenitor cells have been hypothesized to contribute to vascular remodeling in MMA. MMA is associated with increased expression of angiogenic factors and proinflammatory molecules. Systemic inflammation may be related to MMA pathogenesis. Objective This literature review describes the molecular mechanisms associated with cerebrovascular dysfunction, aberrant angiogenesis, and inflammation in MMA and related cerebrovascular diseases along with treatment strategies and future research perspectives. Methods and results References were identified through a systematic computerized search of the medical literature from January 1, 1983, through July 29, 2022, using the PubMed, EMBASE, BIOSIS Previews, CNKI, ISI web of science, and Medline databases and various combinations of the keywords "moyamoya," "angiogenesis," "anastomotic network," "molecular mechanism," "physiology," "pathophysiology," "pathogenesis," "biomarker," "genetics," "signaling pathway," "blood-brain barrier," "endothelial progenitor cells," "endothelial function," "inflammation," "intracranial hemorrhage," and "stroke." Relevant articles and supplemental basic science articles almost exclusively published in English were included. Review of the reference lists of relevant publications for additional sources resulted in 350 publications which met the study inclusion criteria. Detection of growth factors, chemokines, and cytokines in MMA patients suggests the hypothesis of aberrant angiogenesis being involved in MMA pathogenesis. It remains to be ascertained whether these findings are consequences of MMA or are etiological factors of MMA. Conclusions MMA is a heterogeneous disorder, comprising various genotypes and phenotypes, with a complex pathophysiology. Additional research may advance our understanding of the pathophysiology involved in aberrant angiogenesis, arterial stenosis, and the formation of moyamoya collaterals and anastomotic networks. Future research will benefit from researching molecular pathophysiologic mechanisms and the correlation of clinical and basic research results.
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Affiliation(s)
- Kirsten B. Dorschel
- Medical Faculty, Heidelberg University Medical School, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
| | - John E. Wanebo
- Department of Neurosurgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, AZ, United States
- Department of Neuroscience, HonorHealth Research Institute, Scottsdale, AZ, United States
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Gatti JR, Penn R, Ahmad SA, Sun LR. Seizures in Pediatric Moyamoya: Risk Factors and Functional Outcomes. Pediatr Neurol 2023; 145:36-40. [PMID: 37271055 DOI: 10.1016/j.pediatrneurol.2023.04.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 04/23/2023] [Accepted: 04/29/2023] [Indexed: 06/06/2023]
Abstract
BACKGROUND Children with moyamoya arteriopathy are at high risk for stroke and seizures. Risk factors for seizures and the impact of seizures on neurological outcomes in children with moyamoya are unknown. METHODS This is a single-center retrospective cohort study of children with moyamoya evaluated between 2003 and 2021. Functional outcome was assessed using the Pediatric Stroke Outcome Measure (PSOM). Associations between clinical variables and seizure occurrence were assessed using univariate and multivariable logistic regression. Associations between clinical variables and final PSOM score were assessed using ordinal logistic regression. RESULTS Eighty-four patients met inclusion criteria, and 34 (40%) children experienced seizure. Factors associated with seizures included moyamoya disease (vs syndrome; odds ratio [OR] 3.43, P = 0.008) and the presence of infarcts on baseline neuroimaging (OR 5.80, P = 0.002). Factors associated with decreased likelihood of experiencing seizures included older age at initial presentation (OR 0.82, P = 0.002) and asymptomatic (radiographic) presentation (OR 0.05, P = 0.006). Both older age at presentation (adjusted OR [AOR] 0.80, P = 0.004) and incidental radiographic presentation (AOR 0.06, P = 0.022) remained significant after adjusting for potential confounders. Seizures were associated with worse functional outcomes as assessed by the PSOM (regression coefficient 2.03, P < 0.001). This association remained significant after adjusting for potential confounders (adjusted regression coefficient 1.54, P = 0.025). CONCLUSIONS Younger age and symptomatic presentation are associated with increased likelihood of seizures among children with moyamoya. Seizures are associated with worse functional outcomes. Prospective studies should clarify how seizures impact outcomes and how effective seizure treatment modifies this relationship.
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Affiliation(s)
- John R Gatti
- Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Rachel Penn
- Division of Epilepsy, Department of Neurology, Johns Hopkins School of Medicine, Baltimore, Maryland
| | | | - Lisa R Sun
- Divisions of Cerebrovascular Neurology and Pediatric Neurology, Department of Neurology, Johns Hopkins School of Medicine, Baltimore, Maryland.
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Lee KS, Zhang JJY, Bhate S, Ganesan V, Thompson D, James G, Silva AHD. Surgical revascularizations for pediatric moyamoya: a systematic review, meta-analysis, and meta-regression analysis. Childs Nerv Syst 2023; 39:1225-1243. [PMID: 36752913 PMCID: PMC10167165 DOI: 10.1007/s00381-023-05868-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Accepted: 01/28/2023] [Indexed: 02/09/2023]
Abstract
INTRODUCTION There is no clear consensus regarding the technique of surgical revascularization for moyamoya disease and syndrome (MMD/MMS) in the pediatric population. Previous meta-analyses have attempted to address this gap in literature but with methodological limitations that affect the reliability of their pooled estimates. This meta-analysis aimed to report an accurate and transparent comparison between studies of indirect (IB), direct (DB), and combined bypasses (CB) in pediatric patients with MMD/MMS. METHODS In accordance with PRISMA guidelines, systematic searches of Medline, Embase, and Cochrane Central were undertaken from database inception to 7 October 2022. Perioperative adverse events were the primary outcome measure. Secondary outcomes were rates of long-term revascularization, stroke recurrence, morbidity, and mortality. RESULTS Thirty-seven studies reporting 2460 patients and 4432 hemispheres were included in the meta-analysis. The overall pooled mean age was 8.6 years (95% CI: 7.7; 9.5), and 45.0% were male. Pooled proportions of perioperative adverse events were similar between the DB/CB and IB groups except for wound complication which was higher in the former group (RR = 2.54 (95% CI: 1.82; 3.55)). Proportions of post-surgical Matsushima Grade A/B revascularization favored DB/CB over IB (RR = 1.12 (95% CI 1.02; 1.24)). There was no significant difference in stroke recurrence, morbidity, and mortality. After meta-regression analysis, year of publication and age were significant predictors of outcomes. CONCLUSIONS IB, DB/CB are relatively effective and safe revascularization options for pediatric MMD/MMS. Low-quality GRADE evidence suggests that DB/CB was associated with better long-term angiographic revascularization outcomes when compared with IB, although this did not translate to long-term stroke and mortality benefits.
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Affiliation(s)
- Keng Siang Lee
- Department of Neurosurgery, Great Ormond Street Hospital for Children, London, UK.
- Great Ormond Street Institute of Child Health, University College London, London, UK.
- Department of Neurosurgery, King's College Hospital, London, UK.
- Department of Basic and Clinical Neurosciences, Maurice, Wohl Clinical Neuroscience Institute, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK.
- Bristol Medical School, University of Bristol, Bristol, UK.
| | - John J Y Zhang
- Department of Neurosurgery, National Neuroscience Institute, Singapore, Singapore
| | - Sanjay Bhate
- Great Ormond Street Institute of Child Health, University College London, London, UK
- Department of Paediatric Neurology, Great Ormond Street Hospital for Children, London, UK
| | - Vijeya Ganesan
- Great Ormond Street Institute of Child Health, University College London, London, UK
- Department of Paediatric Neurology, Great Ormond Street Hospital for Children, London, UK
| | - Dominic Thompson
- Department of Neurosurgery, Great Ormond Street Hospital for Children, London, UK
- Great Ormond Street Institute of Child Health, University College London, London, UK
| | - Greg James
- Department of Neurosurgery, Great Ormond Street Hospital for Children, London, UK
- Great Ormond Street Institute of Child Health, University College London, London, UK
| | - Adikarige Haritha Dulanka Silva
- Department of Neurosurgery, Great Ormond Street Hospital for Children, London, UK
- Great Ormond Street Institute of Child Health, University College London, London, UK
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11
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A Retrospective Study on Clinical Features of Childhood Moyamoya Disease. Pediatr Neurol 2023; 138:17-24. [PMID: 36335837 DOI: 10.1016/j.pediatrneurol.2022.08.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 07/16/2022] [Accepted: 08/19/2022] [Indexed: 01/10/2023]
Abstract
BACKGROUND Childhood moyamoya disease (MMD) can lead to progressive and irreversible neurological impairment. Early age at onset is likely associated with a worst prognosis of the disease. The study aims to summarize the clinical characteristics of childhood MMD for supporting the diagnosis and treatment of early MMD. METHODS A retrospective study was conducted on children aged zero to 16 years who were diagnosed with MMD in the Department of Neurology and neurosurgery of our hospital from October 2016 to April 2020. The clinical characteristics of children with MMD were summarized for analysis, and the distribution of sex and initial attack type among different age groups was determined by data comparison. RESULTS The study surveyed 114 children (male to female sex ratio of 1:1.07) with MMD, and 6.1% of them had family history. The mean age of onset was 7.15 ± 3.30 years, and the peak age of onset was five to eight years. The most common initial attack type was transient ischemic attack (TIA) (62 cases, 54.4%) with limb weakness. The incidence of the initial attack type in the three age groups was varied (P < 0.05). The result of overall prognosis was good in 86 cases (89.6%). CONCLUSIONS In this study, MMD cases were mainly ischemic type and TIA was the most common initial attack type. Infant group was more prone to have cerebral infarction, whereas preschool and school-age groups tended to have TIA. The treatments and prognosis of the studied MMD cases were achieved with good outcomes.
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12
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Penn R, Harrar D, Sun LR. Seizures, Epilepsy, and Electroencephalography Findings in Pediatric Moyamoya Arteriopathy: A Scoping Review. Pediatr Neurol 2022; 142:95-103.e2. [PMID: 36577597 DOI: 10.1016/j.pediatrneurol.2022.11.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Revised: 10/27/2022] [Accepted: 11/26/2022] [Indexed: 12/05/2022]
Abstract
BACKGROUND Although seizures are known to occur in children with moyamoya arteriopathy, data regarding characteristics, prevalence, and predictive factors for their development are less established. This study aimed to systematically review literature addressing seizures, epilepsy, and electroencephalography findings in the pediatric moyamoya population. METHODS A scoping review was performed by searching PubMed and Ovid:Embase databases for articles that described seizures, epilepsy, and electroencephalography findings in patients aged 0 to 21 years with moyamoya arteriopathy. RESULTS The search yielded 43 total articles that addressed the following topics in childhood moyamoya: seizures as the presenting symptom, epilepsy characteristics and management, characteristic electroencephalography findings including rebuildup with discussion of proposed mechanisms, and potential predictive clinical factors for the development of seizures preoperatively and the persistence of epilepsy postoperatively. In the reviewed literature, 9% to 19% of children with moyamoya had epilepsy, with over half of the cases lacking radiographic evidence of ischemia. Young age was the most consistent clinical factor associated with both seizures as the presenting symptom and with moyamoya-related epilepsy. Multiple studies report that seizures, electroencephalographic background abnormalities, and the rebuildup phenomenon improve after successful revascularization surgery. CONCLUSIONS This scoping review provides a thorough investigation of the literature available to date on the clinical features of seizures in the pediatric moyamoya population. Literature on this topic is scarce and further studies assessing predictive factors for the development of epilepsy, prognosis as a result of having seizures, and seizure management in this population will help to fill existing knowledge gaps.
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Affiliation(s)
- Rachel Penn
- Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Dana Harrar
- Children's National Hospital, Washington, District of Columbia
| | - Lisa R Sun
- Johns Hopkins University School of Medicine, Baltimore, Maryland.
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13
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Xu R, Kalluri AL, Sun LR, Lawrence CE, Lee JK, Kannan S, Cohen AR. The neurosurgical management of Severe Hemophilia A and Moyamoya (SHAM): challenges, strategies, and literature review. Childs Nerv Syst 2022; 38:1077-1084. [PMID: 35262754 DOI: 10.1007/s00381-022-05489-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Accepted: 03/03/2022] [Indexed: 11/29/2022]
Abstract
INTRODUCTION Severe Hemophilia A and Moyamoya arteriopathy (SHAM syndrome) is a rare genetic disorder caused by deletion of portions of the cytogenic band Xq28. A case of SHAM syndrome requiring bilateral cerebral revascularization is described with an emphasis on perioperative management. CASE REPORT A 5-year-old boy with severe hemophilia A complicated by factor VIII inhibition presented with right-sided weakness. Imaging revealed multiple strokes and vascular changes consistent with Moyamoya disease. The patient underwent two-staged indirect cerebral bypass revascularizations, first on the left side and several months later on the right. Perioperative management required balancing the administration of agents to prevent coagulopathy and perioperative hemorrhage while mitigating the risk of thromboembolic events associated with bypass surgery. Despite a multidisciplinary effort by the neurosurgery, hematology, critical care, and anesthesiology teams, the post-operative course after both surgeries was complicated by stroke. Fortunately, the patient recovered rapidly to his preoperative functional baseline. CONCLUSION We describe a rare case of SHAM syndrome in a pediatric patient who required bilateral revascularizations and discuss strategies for managing the perioperative risk of hemorrhage and stroke. We also review existing literature on SHAM syndrome.
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Affiliation(s)
- Risheng Xu
- Johns Hopkins University School of Medicine, Phipps Building 554, 600 N Wolfe St, Baltimore, MD, 21287, USA
| | - Anita L Kalluri
- Johns Hopkins University School of Medicine, Phipps Building 554, 600 N Wolfe St, Baltimore, MD, 21287, USA
| | - Lisa R Sun
- Johns Hopkins University School of Medicine, Phipps Building 554, 600 N Wolfe St, Baltimore, MD, 21287, USA
| | - Courtney E Lawrence
- Johns Hopkins University School of Medicine, Phipps Building 554, 600 N Wolfe St, Baltimore, MD, 21287, USA
| | - Jennifer K Lee
- Johns Hopkins University School of Medicine, Phipps Building 554, 600 N Wolfe St, Baltimore, MD, 21287, USA
| | - Sujatha Kannan
- Johns Hopkins University School of Medicine, Phipps Building 554, 600 N Wolfe St, Baltimore, MD, 21287, USA
| | - Alan R Cohen
- Johns Hopkins University School of Medicine, Phipps Building 554, 600 N Wolfe St, Baltimore, MD, 21287, USA.
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Bao XY, Wang QN, Wang XP, Yang RM, Zou ZX, Zhang Q, Li DS, Duan L. Recognition of the Effect of Indirect Revascularization for Moyamoya Disease: The Balance Between the Stage Progression and Neoangiogenesis. Front Neurol 2022; 13:861187. [PMID: 35599730 PMCID: PMC9121117 DOI: 10.3389/fneur.2022.861187] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 04/08/2022] [Indexed: 11/13/2022] Open
Abstract
ObjectiveTo explore the long-term progression of neoangiogenesis after indirect revascularization for moyamoya disease (MMD).MethodsWe enrolled patients who were diagnosed with MMD and treated by encephaloduroarteriosynangiosis (EDAS) surgery at our center from December 2002 through September 2009. A comparative study between short-term (6–12 months) and long-term (duration ≥ 8 years) follow-up angiographies was performed. The development of collateral circulation through EDAS was graded according to the system described by the Matsushima grade system.ResultsA total of 78 patients who received indirect EDAS were enrolled in the study. The mean age at the first operation was 26.9 ± 15.0 years. The Matsushima grades of the same hemisphere were higher at the long-term follow-up compared with the short-term follow-up. Importantly, no attenuation was observed in any hemisphere during the long-term follow-up. In total, 51 hemispheres (32.7%) and 26 hemispheres (16.6%) had progression during the short-term and the long-term follow-up, respectively. The ipsilateral Suzuki stage showed a significant negative correlation with progression pace. Furthermore, higher Suzuki stages were significantly correlated with the postsurgical Matsushima grade at both time points. A total of nine strokes (11.5%) occurred in 78 patients was reported at the long-term follow-up. The annual incidence rate of recurrent strokes was higher for the stage progression group than for the stable group.ConclusionFor patients with MMD, postsurgical neoangiogenesis after indirect bypass continuously improved with time. The short-term progression of the internal carotid artery (ICA) might be attributed to cerebral revascularization, while the long-term progression should be attributed to the natural progression of the disease.
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Affiliation(s)
- Xiang-Yang Bao
- Department of Neurosurgery, Chinese PLA General Hospital (Former Department of Neurosurgery, The Fifth Medical Center of Chinese PLA General Hospital), Beijing, China
- *Correspondence: Xiang-Yang Bao
| | - Qian-Nan Wang
- Department of Neurosurgery, Chinese PLA General Hospital (Former Department of Neurosurgery, The Eighth Medical Center of Chinese PLA General Hospital), Beijing, China
| | - Xiao-Peng Wang
- Department of Neurosurgery, Chinese PLA General Hospital (Former Department of Neurosurgery, The Fifth Medical Center of Chinese PLA General Hospital), Beijing, China
- Department of Neurosurgery, 307th Hospital of People's Liberation Army, 307 Clinical College, Anhui Medical University, Hefei, China
| | - Ri-Miao Yang
- Department of Neurosurgery, Chinese PLA General Hospital (Former Department of Neurosurgery, The Fifth Medical Center of Chinese PLA General Hospital), Beijing, China
| | - Zheng-Xing Zou
- Department of Neurosurgery, Chinese PLA General Hospital (Former Department of Neurosurgery, The Fifth Medical Center of Chinese PLA General Hospital), Beijing, China
| | - Qian Zhang
- Department of Neurosurgery, Chinese PLA General Hospital (Former Department of Neurosurgery, The Fifth Medical Center of Chinese PLA General Hospital), Beijing, China
| | - De-Sheng Li
- Department of Neurosurgery, Chinese PLA General Hospital (Former Department of Neurosurgery, The Fifth Medical Center of Chinese PLA General Hospital), Beijing, China
| | - Lian Duan
- Department of Neurosurgery, Chinese PLA General Hospital (Former Department of Neurosurgery, The Fifth Medical Center of Chinese PLA General Hospital), Beijing, China
- Department of Neurosurgery, 307th Hospital of People's Liberation Army, 307 Clinical College, Anhui Medical University, Hefei, China
- Lian Duan
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15
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Lin K, Sui S, Zhao J, Zhang L, Chen K. A meta-analysis of comparisons of various surgical treatments for moyamoya diseases. Brain Behav 2021; 11:e2356. [PMID: 34520635 PMCID: PMC8553333 DOI: 10.1002/brb3.2356] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Revised: 07/20/2021] [Accepted: 08/22/2021] [Indexed: 11/07/2022] Open
Abstract
PURPOSE Ischemia is one of the most familiar complications in the different procedures for moyamoya disease (MMD), but the optimal surgical approaches for MMD remain unknown. We aimed to evaluate the efficiency of various surgical treatments. METHODS A literature search word was performed through four databases such as Cochrane Library, Web of Science, PubMed, and EMBASE for the literature published until May 2021. The I2 statistic was used to assess heterogeneity. A random/fixed-effects model was used to pool. RESULTS There are a total of 18 studies including three surgical treatments such as including indirect, direct, and combined bypass in this study. The result revealed that indirect bypass was related to a higher incidence of recurrence stroke compared to the direct and combined bypass treatment (p = .001). Furthermore, the cases undergoing direct bypass were associated with a better angiographic change than the indirect bypass (OR = 3.254, p = .013). CONCLUSION This meta-analysis demonstrated a positive effect of using the direct and combined bypass to treat MMD compared to indirect bypass due to their lower rates of recurrence stroke.
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Affiliation(s)
- Kai Lin
- Department of Neurosurgery, Liaocheng People's Hospital, Liaocheng, P.R. China
| | - Shaohua Sui
- Department of Emergency, Liaocheng People's Hospital, Liaocheng, P.R. China
| | - Jing Zhao
- Department of Pediatrics, Liaocheng People's Hospital, Liaocheng, P.R. China
| | - Liyong Zhang
- Department of Neurosurgery, Liaocheng People's Hospital, Liaocheng, P.R. China
| | - Kun Chen
- Department of Neurology, Liaocheng People's Hospital, Liaocheng, P.R. China
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Abstract
Intracranial vascular abnormalities rarely are encountered in primary care. Many of the pathologies are occult and prognosis varies widely between inconsequential variants of anatomy to acutely life-threatening conditions. Consequently, there often is a great deal of anxiety associated with any potential diagnosis. This article reviews anatomic intracranial vascular lesions, including vascular malformations (arteriovenous malformations/arteriovenous fistulae and cavernous malformations), structural arteriopathies (aneurysms and moyamoya), and common developmental anomalies of the vasculature. The focus includes a general overview of anatomy, pathology, epidemiology, and key aspects of evaluation for the primary care provider and a review of common questions encountered in practice.
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17
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Karsten MB, Smith ER, Scott RM. Late morbidity and mortality following revascularization surgery for moyamoya disease in the pediatric population. J Neurosurg Pediatr 2021; 28:206-211. [PMID: 34116511 DOI: 10.3171/2021.1.peds20944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Accepted: 01/27/2021] [Indexed: 11/06/2022]
Abstract
OBJECTIVE There are limited reports on long-term morbidity in pediatric patients who have undergone surgical revascularization for moyamoya disease (MMD). Here, the authors report long-term morbidity and mortality in a population of pediatric patients who underwent pial synangiosis for MMD from 1988 through 2016. METHODS A single-center retrospective review of the hospital and personal operative databases of the senior authors was carried out to identify all patients who were treated for MMD at Boston Children's Hospital between 1988 and 2016, and who experienced any episode of late morbidity or mortality, which the authors defined as an event resulting in significant neurological deficit or death occurring more than 1 year after revascularization surgery. Hospital records were reviewed to determine pertinent demographic data, the initial mode of patient presentation, and associated comorbidities. Radiographic studies, when available, were reviewed for documentation of the diagnosis and for confirmation of the late complication, and the literature on this topic was reviewed. RESULTS In total, 460 patients with MMD underwent surgery between 1988 and 2016 using the pial synangiosis surgical technique; 15 (3.3%) of these patients (9 females and 6 males) experienced documented late death (n = 14) or severe morbidity (n = 1). The median age at revascularization surgery was 8.0 years (range 1-21 years). The causes of these late complications were grouped into three etiologies: intraventricular or intracerebral hemorrhage (n = 8), systemic complications related to associated comorbidities or preoperative disabilities (n = 5), and the development of malignant brain tumors (n = 2). Four patients whose MMD was associated with a history of cranial radiation therapy died. These events occurred from as early as 2 years to as late as 27 years postoperatively. CONCLUSIONS The risk of late morbidities and mortality following pial synangiosis for MMD in the pediatric patient appeared to be low. Nevertheless, the occurrence of catastrophic cerebrovascular events, particularly intracerebral and intraventricular hemorrhage in the otherwise neurologically stable revascularized patient, was concerning. Although there is value in long-term surveillance of patients who have undergone surgery for MMD, from both a neurological and a general medical standpoint, particularly in patients with the risk factor of prior cranial radiation therapy, it is not clear from the data how the late deaths in this population could have been prevented.
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18
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Deng X, Ge P, Wang R, Zhang D, Zhao J, Zhang Y. Risk factors for postoperative ischemic complications in pediatric moyamoya disease. BMC Neurol 2021; 21:229. [PMID: 34157993 PMCID: PMC8218458 DOI: 10.1186/s12883-021-02283-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Accepted: 06/10/2021] [Indexed: 11/30/2022] Open
Abstract
Background Ischemic events are the most common postoperative complication in bypass surgery for moyamoya disease (MMD), but the risk factors for pediatric MMD remain unclear. The goal of the study was to investigate the risk factors for postoperative ischemic complications in pediatric MMD patients. Methods We retrospectively reviewed a consecutive series of pediatric MMD cases at Beijing Tiantan Hospital, Capital Medical University from June 2010 through June 2019. Preoperative clinical variables and radiographic findings were recorded, and logistic regression analysis was carried out to identify the risk factors for postoperative ischemic events. Results A total of 533 operations in 336 patients were included in this study. Postoperative complications occurred after 51 operations (9.6%), including 40/447 indirect bypass procedures, 9/70 direct bypass procedures, and 2/16 combined bypass procedures. Postoperative ischemic events were the most common complication and occurred in 30 patients after 31 procedures (8.9% per patient; 5.8% per operation), including 26/447 indirect bypass procedures, 4/70 direct bypass procedures, and 1/16 combined bypass procedures, and the incidence of these events did not differ significantly between indirect and non-indirect bypass (5.8% vs 5.8%; p = 0.999). Multivariate logistic regression analyses revealed that older age at operation (OR 1.129, 95% CI 1.011–1.260, p = 0.032) and posterior cerebral artery involvement (OR 2.587, 95% CI 1.030–6.496, p = 0.043) were significantly associated with postoperative ischemic events. Conclusion We speculate that older age at operation and posterior cerebral artery involvement are risk factors for postoperative ischemic events in pediatric MMD patients.
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Affiliation(s)
- Xiaofeng Deng
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, China.,China National Clinical Research Center for Neurological Diseases, Beijing, China.,Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China.,Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, Beijing, China
| | - Peicong Ge
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, China.,China National Clinical Research Center for Neurological Diseases, Beijing, China.,Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China.,Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, Beijing, China
| | - Rong Wang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, China.,China National Clinical Research Center for Neurological Diseases, Beijing, China.,Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China.,Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, Beijing, China
| | - Dong Zhang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, China.,China National Clinical Research Center for Neurological Diseases, Beijing, China.,Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China.,Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, Beijing, China
| | - Jizong Zhao
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, China.,China National Clinical Research Center for Neurological Diseases, Beijing, China.,Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China.,Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, Beijing, China.,Savaid Medical School, University of Chinese Academy of Sciences, Beijing, China
| | - Yan Zhang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, China. .,China National Clinical Research Center for Neurological Diseases, Beijing, China. .,Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China. .,Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, Beijing, China.
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Clinical and Genetic Risk Factors of Long-Term Outcomes after Encephaloduroarteriosynangiosis in Moyamoya Disease in China. J Stroke Cerebrovasc Dis 2021; 30:105847. [PMID: 33992965 DOI: 10.1016/j.jstrokecerebrovasdis.2021.105847] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 04/15/2021] [Accepted: 04/19/2021] [Indexed: 11/21/2022] Open
Abstract
OBJECTIVES This retrospective study was conducted to analyze the associations between ring finger protein 213 p.R4810K variant, clinical features and long-term outcomes in patients with moyamoya disease (MMD) after encephaloduroarteriosynangiosis treatment. MATERIALS AND METHODS A total of 2,545 patients with MMD in China were included in this study (median of follow-up duration: 32.00 months). Multiple Cox regression models were used to assess the associations between p.R4810K variant, clinical features and long-term outcomes. RESULTS For all patients, in multivariate Cox analysis, no association was observed between p.R4810K and long-term outcomes. Pediatric onset (HR, 0.38; 95%CI, 0.25-0.59) and headache (HR, 0.26; 95%CI, 0.08-0.83) were inversely and hypertension (HR, 1.43 95%CI, 1.06-1.94), diabetes (HR, 1.55; 95%CI, 1.00-2.40), bilateral lesions (HR, 2.73; 95%CI, 1.12-6.65) and posterior cerebral artery involvement (HR, 1.44; 95%CI, 1.08-1.90) were positively associated with follow-up stroke (all P < 0.05). Pediatric onset (HR, 0.46; 95%CI, 0.26-0.82) was inversely and hyperlipidemia (HR, 1.83; 95%CI, 1.23-2.73), smoking (HR, 1.86; 95%CI, 1.13-3.07), high Suzuki angiographic stage (HR, 1.71, 95%CI, 1.09-2.70), poor admission neurologic status (HR, 8.93; 95%CI, 6.49-12.29) and follow-up stroke (HR, 8.31; 95%CI, 6.01-11.49) were positively associated with poor neurologic outcome at the last follow-up visit (all P < 0.05). The factors were not consistent in the different groups of age at onset. CONCLUSIONS In our study, p.R4810K may play no role in long-term outcomes in Chinese MMD. Clinical features including age at onset, initial symptoms, risk factors of stroke, imaging, poor admission neurologic status were associated with poor outcomes in MMD after EDAS.
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20
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Nakamura A, Kawashima A, Andrade-Barazarte H, Funatsu T, Hernesniemi J, Kawamata T. Occipital artery to middle cerebral artery bypass in pediatric moyamoya disease: rescue therapy after failed revascularization. J Neurosurg Pediatr 2021; 27:429-436. [PMID: 33450732 DOI: 10.3171/2020.8.peds20424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 08/10/2020] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Patients with pediatric moyamoya disease (PMMD) showing recurrent symptoms or decreased cerebral blood flow after initial revascularization therapy may require additional revascularization to improve their clinical condition. The authors evaluated the clinical and hemodynamic benefits of an occipital artery (OA)-middle cerebral artery (MCA) bypass for patients with PMMD who have undergone an initial revascularization procedure. METHODS The authors retrospectively identified 9 patients with PMMD who had undergone OA-MCA bypass between March 2013 and December 2017, and who had received a previous superficial temporal artery-MCA bypass. The following clinical data were collected: initial revascularization procedure, symptoms (presence or recurrence), pre- and postoperative cerebral blood flow and cerebrovascular reactivity (CVR) changes, posterior cerebral artery (PCA) stenosis, PCA-related and nonrelated symptoms, and latest follow-up. RESULTS Preoperatively, all patients (n = 9) suffered non-PCA-related recurrent symptoms, and 4 had PCA-related symptoms. At 1-year follow-up, all patients with PCA-related symptoms showed complete recovery. Additionally, 8 (89%) patients with non-PCA symptoms experienced improvement. Only 1 (11%) patient showed no improvement after the surgical procedure. The mean pre- and postoperative CVR values of the MCA territory were 14.8% and 31.3%, respectively, whereas the respective mean CVR values of the PCA territory were 22.8% and 40.0%. CONCLUSIONS The OA-MCA bypass is an effective rescue therapy to improve the clinical condition and hemodynamic changes caused by PMMD in patients who experience recurrent symptoms after initial revascularization.
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Affiliation(s)
- Akikazu Nakamura
- 1Department of Neurosurgery, Tokyo Women's Medical University, Yachiyo Medical Center, Chiba, Japan
| | - Akitsugu Kawashima
- 1Department of Neurosurgery, Tokyo Women's Medical University, Yachiyo Medical Center, Chiba, Japan
| | - Hugo Andrade-Barazarte
- 2Department of Neurosurgery, Juha Hernesniemi International Center for Neurosurgery, Henan People's Provincial Hospital, University of Zhengzhou, China; and
| | - Takayuki Funatsu
- 3Department of Neurosurgery, Tokyo Women's Medical University, Tokyo, Japan
| | - Juha Hernesniemi
- 2Department of Neurosurgery, Juha Hernesniemi International Center for Neurosurgery, Henan People's Provincial Hospital, University of Zhengzhou, China; and
| | - Takakazu Kawamata
- 3Department of Neurosurgery, Tokyo Women's Medical University, Tokyo, Japan
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21
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Zhang A, Brown N, Cheaney B, Campos JK, Chase Ransom R, Hsu FP. Updates in the management of moyamoya disease. INTERDISCIPLINARY NEUROSURGERY 2021. [DOI: 10.1016/j.inat.2020.100976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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22
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Failures in Revascularization for Pediatric Moyamoya Disease and Syndrome: A Scoping Review. World Neurosurg 2021; 149:204-214.e1. [PMID: 33618047 DOI: 10.1016/j.wneu.2021.02.054] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2020] [Revised: 02/11/2021] [Accepted: 02/12/2021] [Indexed: 11/20/2022]
Abstract
BACKGROUND Moyamoya disease (MMD) and moyamoya syndrome (MMS) are a rare cause of stroke commonly managed surgically. We conducted a scoping review to identify the current scope of the literature regarding factors associated with failure of revascularization surgery for MMD and MMS in pediatric patients and to catalyze future research. METHODS A scoping review was conducted to explore failures of revascularization surgery for MMD and MMS in pediatric patients using the PubMed, Embase, and Scopus databases. Titles and abstracts returned from searches were screened for full-text review. Studies meeting inclusion criteria were reviewed in full, and relevant data were extracted. RESULTS Of 2450 resultant articles, 15 were included. Angiographic outcomes were reported for 900 hemispheres, of which 442 (49.1%) were denoted as Matsushima grade A, 299 (33.2%) as Matsushima grade B, and 159 (17.7%) as Matsushima grade C. Patients with MMS had poorer angiographic outcomes than did patients with MMD. Patients with poor neovascularization had a greater degree of moyamoya vessels on follow-up angiogram. Suzuki stage was not associated with angiographic outcome in individual patients. Angiographic outcomes differed by surgical approach and were not associated with clinical outcomes. Literature identifying factors was sparse. CONCLUSIONS The existing literature indicates that factors such as cause, degree of moyamoya vessels, and surgical approach may affect the likelihood of Matsushima grade C revascularization in pediatric patients with MMD and MMS. Future studies are necessary to definitively elucidate factors associated with failure of revascularization surgery for pediatric MMD.
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Postoperative stroke and neurological outcomes in the early phase after revascularization surgeries for moyamoya disease: an age-stratified comparative analysis. Neurosurg Rev 2021; 44:2785-2795. [PMID: 33415521 DOI: 10.1007/s10143-020-01459-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 11/16/2020] [Accepted: 12/09/2020] [Indexed: 01/09/2023]
Abstract
Stroke and neurological outcomes in the early phase following revascularization for moyamoya disease (MMD) may depend on the patient's age. In this study, an age-stratified comparative analysis was performed to clarify this issue. We reviewed 105 MMD patients who underwent 179 revascularization surgeries. The demographic characteristics were collected in four age groups (≤ 5 and 6-17 years for pediatric patients and 18-49 and ≥ 50 years for adults). Additionally, we assessed the incidence of subsequent stroke and deterioration of modified Rankin Scale (mRS) score. Then, we evaluated predictors of postoperative stroke and mRS deterioration using logistic regression. The mean patient age was 26.2 ± 18.5 years. No significant difference in the incidence of postoperative stroke was observed between age groups; however, the incidence tended to be increased among patients aged ≤ 5 years (17.9%) and patients aged ≥ 50 years (16.7%). Deterioration of mRS scores was significantly associated with ages ≤ 5 years (17.9%) and ≥ 50 years (11.1%). Logistic regression showed that posterior cerebral artery involvement (odds ratio [OR], 4.6) and postoperative transient neurological events (TNEs) (OR, 5.93) were risk factors for postoperative stroke. Age ≤ 5 years (OR, 9.73), postoperative TNEs (OR, 7.38), and postoperative stroke (OR, 49) were identified as predictors of unfavorable neurological outcomes. The novel feature of this comparative analysis by age group is that membership in the early-childhood MMD patient group (under 5 years old) was an independent risk factor for unfavorable short-term neurological outcomes and was mainly associated with the incidence of postoperative severe cerebral infarction.
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Moore FD, Rizk T. Moyamoya Disease in a Six Month Caucasian Female. Cureus 2020; 12:e11983. [PMID: 33425553 PMCID: PMC7788044 DOI: 10.7759/cureus.11983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Moyamoya disease (MMD) is a progressive cerebral arteriopathy characterized by stenosis and/or occlusion of the internal carotid arteries and the arteries around the Circle of Willis, with the development of "moyamoya" vessels, which are an attempt at revascularization at the base of the brain. In this paper we describe a 6 month, 3-week-old girl who presented with seizures and strokes due to moyamoya disease. The diagnosis of early onset MMD was made due to the magnetic resonance angiography results showing severe stenosis of the terminal/supraclinoid carotid arteries bilaterally with moyamoya vessels, and a completely novel de novo mutation in the RNF213 gene. She underwent bilateral encephaloduroarteriosynangiosis (EDAS) five months after her initial presentation and she did pretty well subsequently. She has shown no episodes suggestive of further strokes up to one year after surgery.
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Affiliation(s)
- Faith D Moore
- Medical Education, Dalhousie Medicine New Brunswick, Saint John, CAN
| | - Tamer Rizk
- Pediatric Neurology, Saint John Regional Hospital, Saint John, CAN
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Clinical outcomes after revascularization for pediatric moyamoya disease and syndrome: A single-center series. J Clin Neurosci 2020; 79:137-143. [PMID: 33070883 DOI: 10.1016/j.jocn.2020.07.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Revised: 06/25/2020] [Accepted: 07/06/2020] [Indexed: 11/22/2022]
Abstract
Moyamoya is a progressive cerebrovascular arteriopathy that affects children of any age. The goal of this study was to determine imaging and clinical outcomes as well as complication rates in a pediatric cohort undergoing either a combined direct/indirect or indirect-only revascularization approach. Patients with moyamoya disease or syndrome ≤ 18 years of age at the time of initial surgery were identified, and clinical data were collected retrospectively. Over a 12-year period, 26 patients underwent revascularization procedures on 49 hemispheres with a median follow-up of 2.6 years from surgery. Median age at surgery was 7.3 years (range 1.4-18.0 years). Thirty-three hemispheres (67.3%) underwent combined revascularization with a direct bypass and encephalomyosynangiosis, and sixteen hemispheres (32.7%) underwent indirect-only revascularization. The rate of 30-day perioperative complication was 10.2%, and the rate of postoperative clinical stroke by end of follow-up was 10.2% by hemisphere. There was a 5.7% rate of intraoperative bypass failure requiring conversion to an indirect revascularization approach. On follow-up imaging, 96.9% of direct bypasses remained patent. On multivariate analysis, higher preoperative Pediatric Stroke Outcome Measure (PSOM) scores were associated with lower rates of good clinical outcome on follow-up (unit OR 0.03; p = 0.03). Patients with age < 5.4 years had lower rates of good clinical outcome on follow-up. In this North American cohort, both combined direct/indirect and indirect only revascularization techniques were feasible. However, younger children < 5.4 years of age have worse outcomes than older children, similar to east Asian cohorts.
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26
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Endothelial Progenitor Cells Induce Angiogenesis: a Potential Mechanism Underlying Neovascularization in Encephaloduroarteriosynangiosis. Transl Stroke Res 2020; 12:357-365. [PMID: 32632776 DOI: 10.1007/s12975-020-00834-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 06/10/2020] [Accepted: 07/01/2020] [Indexed: 12/12/2022]
Abstract
Encephaloduroarteriosynangiosis (EDAS) is one of the most commonly used indirect vascular reconstruction methods. EDAS aids in the formation of collateral vessels from the extracranial to the intracranial circulation in patients with moyamoya disease (MMD). However, the underlying mechanism of collateral vessel formation is not well understood. Endothelial progenitor cells (EPCs) differentiate to form the vascular endothelial cells and play a very important role in angiogenesis. We designed this prospective clinical trial to investigate the presence of EPCs in patients with MMD and to explore the neovascularization mechanism mediated by the EPCs in EDAS. The patients who were diagnosed with MMD were recruited between February 5, 2017, and January 7, 2018. The blood samples were obtained from an antecubital vein and were analyzed using flow cytometry. EPCs were defined as CD34brCD133+CD45dimKDR+. All the patients enrolled in the study underwent EDAS. Cerebral arteriography was performed 6 months post-EDAS to assess the efficacy of synangiosis. The correlation between EPC count and good collateral circulation was evaluated. Among the 116 patients with MMD enrolled in this study, 73 were women and 43 were men. The average age of the patients was 33.8 ± 15.2 years. The EPC count of the patients with MMD was 0.071% ± 0.050% (expressed as percentage of the peripheral blood mononuclear cells). The EPC count in the good postoperative collateral circulation group was significantly higher (0.085% ± 0.054%) than that in the poor collateral circulation group (0.048% ± 0.034%) (P = 0.000). The age, modified Suzuki-Mugikura grade, and EPC count were significantly correlated with the good collateral circulation post-EDAS in the multivariate analysis (P = 0.018, P = 0.007, and P = 0.003, respectively). The formation of collateral vessels by EDAS is primarily driven by angiogenesis. The EPC count may be the most critical factor for collateral circulation. The therapeutic effect of EDAS is more likely to benefit younger or severe ischemic patients with MMD.
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Doherty RJ, Caird J, Crimmins D, Kelly P, Murphy S, McGuigan C, Tubridy N, King MD, Lynch B, Webb D, O'Neill D, McCabe DJH, Boers P, O'Regan M, Moroney J, Williams DJ, Cronin S, Javadpour M. Moyamoya disease and moyamoya syndrome in Ireland: patient demographics, mode of presentation and outcomes of EC-IC bypass surgery. Ir J Med Sci 2020; 190:335-344. [PMID: 32562218 DOI: 10.1007/s11845-020-02280-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 06/11/2020] [Indexed: 11/25/2022]
Abstract
BACKGROUND There are no previously published reports regarding the epidemiology and characteristics of moyamoya disease or syndrome in Ireland. AIMS To examine patient demographics, mode of presentation and the outcomes of extracranial-intracranial bypass surgery in the treatment of moyamoya disease and syndrome in Ireland. METHODS All patients with moyamoya disease and syndrome referred to the National Neurosurgical Centre during January 2012-January 2019 were identified through a prospective database. Demographics, clinical presentation, radiological findings, surgical procedures, postoperative complications and any strokes during follow-up were recorded. RESULTS Twenty-one patients were identified. Sixteen underwent surgery. Median age at diagnosis was 19 years. Fifteen were female. Mode of presentation was ischaemic stroke in nine, haemodynamic TIAs in eight, haemorrhage in three and incidental in one. Sixteen patients had Moyamoya disease, whereas five patients had moyamoya syndrome. Surgery was performed on 19 hemispheres in 16 patients. The surgical procedures consisted of ten direct (STA-MCA) bypasses, five indirect bypasses and four multiple burr holes. Postoperative complications included ischaemic stroke in one patient and subdural haematoma in one patient. The median follow-up period in the surgical group was 52 months; there was one new stroke during this period. Two patients required further revascularisation following recurrent TIAs. One patient died during follow-up secondary to tumour progression associated with neurofibromatosis type 1. CONCLUSIONS Moyamoya is rare but occurs in Caucasians in Ireland. It most commonly presents with ischaemic symptoms. Surgical intervention in the form of direct and indirect bypass is an effective treatment in the majority of cases.
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Affiliation(s)
- Ronan J Doherty
- National Neurosurgical Centre, Beaumont Hospital, Dublin, Ireland
- School of Medicine, Trinity College Dublin, Dublin, Ireland
| | - John Caird
- Departments of Neurology and Neurosurgery, Temple Street Children's University Hospital, Dublin, Ireland
| | - Darach Crimmins
- Departments of Neurology and Neurosurgery, Temple Street Children's University Hospital, Dublin, Ireland
| | - Peter Kelly
- Department of Neurology, Mater Misericordiae University Hospital, Dublin, Ireland
| | - Sean Murphy
- Department of Neurology, Mater Misericordiae University Hospital, Dublin, Ireland
| | | | - Niall Tubridy
- Department of Neurology, St Vincent's University Hospital, Dublin, Ireland
| | - Mary D King
- Departments of Neurology and Neurosurgery, Temple Street Children's University Hospital, Dublin, Ireland
| | - Bryan Lynch
- Departments of Neurology and Neurosurgery, Temple Street Children's University Hospital, Dublin, Ireland
| | - David Webb
- Department of Neurology, Our Lady's Children's Hospital Crumlin, Dublin, Ireland
| | - Desmond O'Neill
- Stroke Service and Departments of Neurology and Geriatric Medicine, Tallaght University Hospital, Dublin, Ireland
| | - Dominick J H McCabe
- School of Medicine, Trinity College Dublin, Dublin, Ireland
- Stroke Service and Departments of Neurology and Geriatric Medicine, Tallaght University Hospital, Dublin, Ireland
- Vascular Neurology Research Foundation, Tallaght University Hospital, Dublin, Ireland
- Department of Clinical Neurosciences, Royal Free Campus, UCL Queen Square Institute of Neurology, London, UK
| | - Peter Boers
- Department of Neurology, University Hospital Limerick, Limerick, Ireland
| | - Mary O'Regan
- Department of Neurology, Our Lady's Children's Hospital Crumlin, Dublin, Ireland
| | - Joan Moroney
- National Neurosurgical Centre, Beaumont Hospital, Dublin, Ireland
| | | | - Simon Cronin
- Department of Neurology, Cork University Hospital and University College Cork, Cork, Ireland
| | - Mohsen Javadpour
- National Neurosurgical Centre, Beaumont Hospital, Dublin, Ireland.
- School of Medicine, Trinity College Dublin, Dublin, Ireland.
- Royal College of Surgeons in Ireland, Dublin, Ireland.
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28
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Liu X, Teng J. Blind image restoration algorithm based on improved sparse Bayesian low dose CT. JOURNAL OF INTELLIGENT & FUZZY SYSTEMS 2020. [DOI: 10.3233/jifs-179610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Xiaopei Liu
- School of Microelectronics, Tianjin University, China
| | - Jianfu Teng
- School of Microelectronics, Tianjin University, China
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Zhang M, Raynald, Zhang D, Liu X, Wang R, Zhang Y, Zhao J. Combined STA-MCA Bypass and Encephalodurosynangiosis Versus Encephalodurosynangiosis Alone in Adult Hemorrhagic Moyamoya Disease: A 5 -Year Outcome Study. J Stroke Cerebrovasc Dis 2020; 29:104811. [PMID: 32312630 DOI: 10.1016/j.jstrokecerebrovasdis.2020.104811] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Revised: 02/15/2020] [Accepted: 03/11/2020] [Indexed: 10/24/2022] Open
Abstract
AIM The purpose of this study was to compare the 5-year prognosis of combined superficial temporal artery- middle cerebral artery (STA-MCA) bypass and Encephalodurosynangiosis (EDAS) and EDAS alone in hemorrhagic moyamoya disease (MMD). METHODS This study included 123 adult patients admitted to Beijing Tiantan Hospital with hemorrhagic MMD between 2010 and 2015. The surgical procedures included combined revascularization of STA-MCA anastomosis with EDAS (n = 79) or EDAS alone (n = 44). We recorded basic demographic data as well as several risks factors, and used multivariate regression analysis to evaluate the predictive factor of overall survival and rebleeding-free survival. RESULTS Of the 123 patients with hemorrhagic MMD, the mean age was 37.97 ± 11.04 years old and the mean follow-up period was 65.9 months (ranging from 12 to 100 months). A total of 21 rebleeding events occurred in 19 patients, yielding an annual incidence of rebleeding of 3.1%. Of the 19 patients with rebleeding, 11 (57.8%) patients died of rebleeding and one patient experience 3 rebleeding events. In the combined revascularization group, 9 (11.3%) patients experienced rebleeding, of which 5 (6.3%) died. This incidence was lower than in the indirect group, where 22.7% of patients experienced rebleeding events and 13.6% died. However, no significant difference was found between these 2 groups. In Kaplan-Meier survival analysis, the combined revascularization group had a better prognosis than the EDAS alone group, and multivariate regression analysis revealed that the combined revascularization procedure was associated with a better outcome. CONCLUSIONS Both combined revascularization and EDAS alone can reduce the risk of rebleeding in hemorrhagic MMD. Combined revascularization was found to be superior to EDAS alone in terms of preventing rebleeding events.
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Affiliation(s)
- Mingzhe Zhang
- Beijing Tiantan Hospital, Capital Medical University, Beijing, China; China National Clinical Research Center for Neurological Diseases(NCRC-ND); Center of Stroke, Beijing Institute for Brain Disorder, Beijing, China; Harrison International Peace Hospital, Hebei Medical University, Hebei, China
| | - Raynald
- Beijing Tiantan Hospital, Capital Medical University, Beijing, China; China National Clinical Research Center for Neurological Diseases(NCRC-ND); Center of Stroke, Beijing Institute for Brain Disorder, Beijing, China
| | - Dong Zhang
- Beijing Tiantan Hospital, Capital Medical University, Beijing, China; China National Clinical Research Center for Neurological Diseases(NCRC-ND); Center of Stroke, Beijing Institute for Brain Disorder, Beijing, China.
| | - Xingju Liu
- Beijing Tiantan Hospital, Capital Medical University, Beijing, China; China National Clinical Research Center for Neurological Diseases(NCRC-ND); Center of Stroke, Beijing Institute for Brain Disorder, Beijing, China.
| | - Rong Wang
- Beijing Tiantan Hospital, Capital Medical University, Beijing, China; China National Clinical Research Center for Neurological Diseases(NCRC-ND); Center of Stroke, Beijing Institute for Brain Disorder, Beijing, China
| | - Yan Zhang
- Beijing Tiantan Hospital, Capital Medical University, Beijing, China; China National Clinical Research Center for Neurological Diseases(NCRC-ND); Center of Stroke, Beijing Institute for Brain Disorder, Beijing, China
| | - Jizong Zhao
- Beijing Tiantan Hospital, Capital Medical University, Beijing, China; China National Clinical Research Center for Neurological Diseases(NCRC-ND); Center of Stroke, Beijing Institute for Brain Disorder, Beijing, China
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30
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Quon JL, Kim LH, MacEachern SJ, Maleki M, Steinberg GK, Madhugiri V, Edwards MSB, Grant GA, Yeom KW, Forkert ND. Early Diffusion Magnetic Resonance Imaging Changes in Normal-Appearing Brain in Pediatric Moyamoya Disease. Neurosurgery 2020; 86:530-537. [PMID: 31245817 DOI: 10.1093/neuros/nyz230] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Accepted: 03/18/2019] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Moyamoya disease often leads to ischemic strokes visible on diffusion-weighted imaging (DWI) and T2-weighted magnetic resonance imaging (MRI) with subsequent cognitive impairment. In adults with moyamoya, apparent diffusion coefficient (ADC) is correlated with regions of steal phenomenon and executive dysfunction prior to white matter changes. OBJECTIVE To investigate quantitative global diffusion changes in pediatric moyamoya patients prior to explicit structural ischemic damage. METHODS We retrospectively reviewed children (<20 yr old) with moyamoya disease and syndrome who underwent bypass surgery at our institution. We identified 29 children with normal structural preoperative MRI and without findings of cortical infarction or chronic white matter ischemic changes. DWI datasets were used to calculate ADC maps for each subject as well as for 60 age-matched healthy controls. Using an atlas-based approach, the cerebral white matter, cerebral cortex, thalamus, caudate, putamen, pallidum, hippocampus, amygdala, nucleus accumbens, and brainstem were segmented in each DWI dataset and used to calculate regional volumes and ADC values. RESULTS Multivariate analysis of covariance using the regional ADC and volume values as dependent variables and age and gender as covariates revealed a significant difference between the groups (P < .001). Post hoc analysis demonstrated significantly elevated ADC values for children with moyamoya in the cerebral cortex, white matter, caudate, putamen, and nucleus accumbens. No significant volume differences were found. CONCLUSION Prior to having bypass surgery, and in the absence of imaging evidence of ischemic stroke, children with moyamoya exhibit cerebral diffusion changes. These findings could reflect microstructural changes stemming from exhaustion of cerebrovascular reserve.
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Affiliation(s)
- Jennifer L Quon
- Department of Neurosurgery, Stanford University School of Medicine, Stanford, California
| | - Lily H Kim
- Department of Neurosurgery, Stanford University School of Medicine, Stanford, California
| | - Sarah J MacEachern
- Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, Canada
| | - Maryam Maleki
- Division of Pediatric Neuroradiology, Department of Radiology, Lucile Packard Children's Hospital, Stanford, California
| | - Gary K Steinberg
- Department of Neurosurgery, Stanford University School of Medicine, Stanford, California
| | - Venkatesh Madhugiri
- Department of Neurosurgery, Stanford University School of Medicine, Stanford, California
| | - Michael S B Edwards
- Department of Neurosurgery, Stanford University School of Medicine, Stanford, California.,Division of Pediatric Neurosurgery, Lucile Packard Children's Hospital, Stanford, California
| | - Gerald A Grant
- Department of Neurosurgery, Stanford University School of Medicine, Stanford, California.,Division of Pediatric Neurosurgery, Lucile Packard Children's Hospital, Stanford, California
| | - Kristen W Yeom
- Division of Pediatric Neuroradiology, Department of Radiology, Lucile Packard Children's Hospital, Stanford, California
| | - Nils D Forkert
- Division of Image Science, Department of Radiology, University of Calgary, Calgary, Canada
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Wong TH, Shagera QA, Ryoo HG, Ha S, Lee DS. Basal and Acetazolamide Brain Perfusion SPECT in Internal Carotid Artery Stenosis. Nucl Med Mol Imaging 2020; 54:9-27. [PMID: 32206127 PMCID: PMC7062956 DOI: 10.1007/s13139-019-00633-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 12/19/2019] [Accepted: 12/26/2019] [Indexed: 10/25/2022] Open
Abstract
Internal carotid artery (ICA) stenosis including Moyamoya disease needs revascularization when hemodynamic insufficiency is validated. Vascular reserve impairment was the key to find the indication for endarterectomy/bypass surgery in the atherosclerotic ICA stenosis and to determine the indication, treatment effect, and prognosis in Moyamoya diseases. Vascular reserve was quantitatively assessed by 1-day split-dose I-123 IMP basal/acetazolamide SPECT in Japan or by Tc-99m HMPAO SPECT in other countries using qualitative or semi-quantitative method. We summarized the development of 1-day basal/ acetazolamide brain perfusion SPECT for ICA stenosis, both quantitative and qualitative methods, and their methodological issues regarding (1) acquisition protocol; (2) qualitative assessment, either visual or deep learning-based; (3) clinical use for atherosclerotic ICA steno-occlusive diseases and mostly Moyamoya diseases; and (4) their impact on the choice of treatment options. Trials to use CT perfusion or perfusion MRI using contrast materials or arterial spin labeling were briefly discussed in their endeavor to use basal studies alone to replace acetazolamide-challenge SPECT. Theoretical and practical issues imply that basal perfusion evaluation, no matter how much sophisticated, will not disclose vascular reserve. Acetazolamide rarely causes serious adverse reactions but included fatality, and now, we need to monitor patients closely in acetazolamide-challenge studies.
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Affiliation(s)
- Teck Huat Wong
- Department of Nuclear Medicine, Seoul National University College of Medicine, 28 Yongon-Dong, Jongno-Gu, Seoul, 110-744 South Korea
- Department of Molecular Medicine and Biopharmaceutical Sciences, Seoul National University, Seoul, South Korea
| | - Qaid Ahmed Shagera
- Department of Nuclear Medicine, Seoul National University College of Medicine, 28 Yongon-Dong, Jongno-Gu, Seoul, 110-744 South Korea
- Department of Molecular Medicine and Biopharmaceutical Sciences, Seoul National University, Seoul, South Korea
| | - Hyun Gee Ryoo
- Department of Nuclear Medicine, Seoul National University College of Medicine, 28 Yongon-Dong, Jongno-Gu, Seoul, 110-744 South Korea
- Department of Molecular Medicine and Biopharmaceutical Sciences, Seoul National University, Seoul, South Korea
| | - Seunggyun Ha
- Division of Nuclear Medicine Department of Radiology, Seoul St. Mary’s Hospital, The Catholic University of Korea, Seoul, South Korea
| | - Dong Soo Lee
- Department of Nuclear Medicine, Seoul National University College of Medicine, 28 Yongon-Dong, Jongno-Gu, Seoul, 110-744 South Korea
- Department of Molecular Medicine and Biopharmaceutical Sciences, Seoul National University, Seoul, South Korea
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32
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Watchmaker JM, Frederick BD, Fusco MR, Davis LT, Juttukonda MR, Lants SK, Kirshner HS, Donahue MJ. Clinical Use of Cerebrovascular Compliance Imaging to Evaluate Revascularization in Patients With Moyamoya. Neurosurgery 2020. [PMID: 29528447 DOI: 10.1093/neuros/nyx635] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND Surgical revascularization is often performed in patients with moyamoya, however routine tools for efficacy evaluation are underdeveloped. The gold standard is digital subtraction angiography (DSA); however, DSA requires ionizing radiation and procedural risk, and therefore is suboptimal for routine surveillance of parenchymal health. OBJECTIVE To determine whether parenchymal vascular compliance measures, obtained noninvasively using magnetic resonance imaging (MRI), provide surrogates to revascularization success by comparing measures with DSA before and after surgical revascularization. METHODS Twenty surgical hemispheres with DSA and MRI performed before and after revascularization were evaluated. Cerebrovascular reactivity (CVR)-weighted images were acquired using hypercapnic 3-Tesla gradient echo blood oxygenation level-dependent MRI. Standard and novel analysis algorithms were applied (i) to quantify relative CVR (rCVRRAW), and decompose this response into (ii) relative maximum CVR (rCVRMAX) and (iii) a surrogate measure of the time for parenchyma to respond maximally to the stimulus, CVRDELAY. Measures between time points in patients with good and poor surgical outcomes based on DSA-visualized neoangiogenesis were contrasted (signed-rank test; significance: 2-sided P < .050). RESULTS rCVRRAW increases (P = .010) and CVRDELAY decreases (P = .001) were observed pre- vs post-revascularization in hemispheres with DSA-confirmed collateral formation; no difference was found pre- vs post-revascularization in hemispheres with poor revascularization. No significant change in rCVRMAX post-revascularization was observed in either group, or between any of the MRI measures, in the nonsurgical hemisphere. CONCLUSION Improvement in parenchymal compliance measures post-revascularization, primarily attributed to reductions in microvascular response time, is concurrent with collateral formation visualized on DSA, and may be useful for longitudinal monitoring of surgical outcomes.
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Affiliation(s)
- Jennifer M Watchmaker
- Vanderbilt University of Institute of Imaging Science, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Blaise deB Frederick
- Brain Imaging Center, McLean Hospital, Belmont, Massachusetts.,Consolidated Department of Psychiatry, Harvard Medical School, Boston Massachusetts
| | - Matthew R Fusco
- Department of Neurological Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Larry T Davis
- Department of Radiology and Radiological Sciences, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Meher R Juttukonda
- Vanderbilt University of Institute of Imaging Science, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Sarah K Lants
- Vanderbilt University of Institute of Imaging Science, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Howard S Kirshner
- Department of Neurology, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Manus J Donahue
- Vanderbilt University of Institute of Imaging Science, Vanderbilt University Medical Center, Nashville, Tennessee.,Department of Neurology, Vanderbilt University Medical Center, Nashville, Tennessee.,Department of Psychiatry, Vanderbilt University Medical Center, Nashville, Tennessee
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33
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Ravindran K, Wellons JC, Dewan MC. Surgical outcomes for pediatric moyamoya: a systematic review and meta-analysis. J Neurosurg Pediatr 2019; 24:663-672. [PMID: 31518973 DOI: 10.3171/2019.6.peds19241] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Accepted: 06/13/2019] [Indexed: 11/06/2022]
Abstract
OBJECTIVE The optimal revascularization for pediatric moyamoya for reducing the incidence of future stroke events remains to be determined. METHODS The authors conducted a search of PubMed, MEDLINE, Embase, and Web of Science electronic databases from inception until January 2019. The primary endpoint was the presence of a future ischemic stroke event. Secondary endpoints were angiographic outcomes as measured by postoperative Matsushima grade and clinical symptom persistence. Patients who underwent either direct or combined direct/indirect revascularization were classified into the direct cohort. Data from each study on presence of postoperative stroke events were used to generate standardized mean differences and 95% confidence intervals, which were combined using inverse variance-weighted averages of standardized mean differences in a random effects model. RESULTS Twenty-nine studies met the inclusion criteria for analysis, comprising 2258 patients (1011 males, mean age 8.3 ± 1.8 years) who were followed up clinically for an average of 71.4 ± 51.3 months. One hundred fifty-four patients underwent direct bypass alone, 680 patients underwent either direct or combined direct/indirect revascularization procedures, while 1424 patients underwent indirect bypass alone. The frequencies of future stroke events in patients undergoing direct bypass alone, combined bypass, or indirect bypass alone were 1 per 190.3 patient-years, 1 per 108.9 patient-years, and 1 per 61.1 patient-years, respectively, in each cohort. The estimated stroke rates were 9.0% with indirect revascularization, 4.5% with direct revascularization alone, and 6.0% with combined revascularization. A forest plot did not reveal any significant differences in the incidence of future stroke events or angiographic outcomes following direct-only, combined, or indirect-only revascularization. CONCLUSIONS Direct, indirect, and combined indirect/direct bypass techniques are all effective revascularization options for pediatric moyamoya disease. A relative paucity of granular studies-and inherent surgical selection bias-limits direct comparison between interventions. Suitably designed prospective cohort studies may be useful in identifying patients likely to receive benefit from specific procedures.
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Affiliation(s)
| | - John C Wellons
- 2Division of Pediatric Neurosurgery, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Michael C Dewan
- 2Division of Pediatric Neurosurgery, Vanderbilt University Medical Center, Nashville, Tennessee
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Rosi A, Riordan CP, Smith ER, Scott RM, Orbach DB. Clinical status and evolution in moyamoya: which angiographic findings correlate? Brain Commun 2019; 1:fcz029. [PMID: 32954269 PMCID: PMC7425301 DOI: 10.1093/braincomms/fcz029] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 06/20/2019] [Accepted: 08/12/2019] [Indexed: 11/23/2022] Open
Abstract
Moyamoya is a progressive steno-occlusive cerebrovascular pathology of unknown aetiology that usually involves the terminal portions of the internal carotid arteries and/or the proximal portions of the anterior and middle cerebral arteries bilaterally. The pre-operative Suzuki staging system and post-operative Matsushima grade are nearly universally used markers of natural history and surgical revascularization results, respectively, but their correlation with clinical and radiographic manifestations of moyamoya has not been systematically evaluated in a large cohort. This study evaluated the strength of correlations between pre- and post-operative angiographic parameters and clinical status among paediatric patients with moyamoya. The participants included 58 patients of mean age 11 years at the time of surgery who underwent bilateral indirect revascularization in the same procedure at Boston Children’s Hospital, between January 2010 and December 2015. All included patients had available pre-operative and 1-year post-operative digital subtraction angiography. Clinical data included presenting symptoms, degree of functional incapacity, and peri-operative and long-term complications. Radiographic data included pre-operative Suzuki stage, degree of arterial stenosis, a novel collateral score, the presence of hypovascular territories on digital subtraction angiography, and post-operative Matsushima grade and evolution of stenosis. Chi-squared test and Pearson coefficient were used for correlation studies for categorical variables and Spearman’s rho was used for correlation studies for continuous variables. Results showed that Suzuki stage, collateral score and degree of stenosis were insufficient to predict clinical presentation, pre-operative incapacity and radiographic presentation, whereas the presence of hypovascular territories was correlated with all of these. At 1-year follow-up, Matsushima grade was insufficient for predicting peri-operative or long-term complications, nor did it correlate with post-operative incapacity. The presence of hypovascular territories at 1-year follow-up was correlated with the incidence of post-operative ischaemic symptoms.
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Affiliation(s)
- Andrea Rosi
- Department of Experimental and Clinical Sciences, Careggi University Hospital, University of Florence, 3 Largo Giovanni Alessandro Brambilla, 50134 Florence, Italy
| | - Coleman P Riordan
- Department of Neurosurgery, Boston Children's Hospital, Harvard Medical School, 300 Longwood Avenue, Boston, MA 02115, USA
| | - Edward R Smith
- Department of Neurosurgery, Boston Children's Hospital, Harvard Medical School, 300 Longwood Avenue, Boston, MA 02115, USA
| | - R Michael Scott
- Department of Neurosurgery, Boston Children's Hospital, Harvard Medical School, 300 Longwood Avenue, Boston, MA 02115, USA
| | - Darren B Orbach
- Department of Neurosurgery, Boston Children's Hospital, Harvard Medical School, 300 Longwood Avenue, Boston, MA 02115, USA.,Neurointerventional Radiology Boston Children's Hospital, Harvard Medical School, 300 Longwood Avenue, Boston, MA 02115, USA
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Ha EJ, Kim KH, Wang KC, Phi JH, Lee JY, Choi JW, Cho BK, Yang J, Byun YH, Kim SK. Long-Term Outcomes of Indirect Bypass for 629 Children With Moyamoya Disease: Longitudinal and Cross-Sectional Analysis. Stroke 2019; 50:3177-3183. [PMID: 31551037 DOI: 10.1161/strokeaha.119.025609] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background and Purpose- In pediatric moyamoya disease, there are few reports on the efficacy of surgical intervention for stroke prevention. We evaluated the long-term outcomes of indirect bypass surgery on a relatively large number of children with moyamoya disease in a single center. Methods- From August 1988 to December 2012, 772 children underwent indirect bypass surgery. This study included 629 patients who were followed up for >5 years, excluding patients with moyamoya syndrome. The mean clinical follow-up duration was 12 years (range, 5-29 years). Cross-sectional analysis was performed based on either Karnofsky Performance Scale or Lansky Play Performance Scale to evaluate overall clinical outcomes and factors associated with unfavorable outcomes. To analyze the longitudinal effect of surgery, the annual risk of symptomatic infarction or hemorrhage on the operated hemisphere after indirect bypass surgery was calculated with a person-year method, and the event-free survival rate was evaluated using the Kaplan-Meier method. Results- The overall clinical outcome was favorable in 95% of the patients. The annual risks of symptomatic infarction and hemorrhage on the operated hemispheres were 0.08% and 0.04%, respectively. Furthermore, the 10-year event-free survival rates for symptomatic infarction and hemorrhage were 99.2% and 99.8%. Conclusions- Indirect bypass surgery could provide satisfactory long-term improvement in overall clinical outcome and prevention of recurrent stroke in children with moyamoya disease.
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Affiliation(s)
- Eun Jin Ha
- From the Department of Neurosurgery, Seoul National University Hospital (E.J.H., K.H.K., K.-C.W., J.H.P., J.Y.L., J.Y., Y.H.B., S.-K.K.), Seoul National University College of Medicine, Republic of Korea.,Division of Pediatric Neurosurgery, Seoul National University Children's Hospital, Republic of Korea (E.J.H., K.H.K., K.-C.W., J.H.P., J.Y.L., J.Y., Y.H.B., S.-K.K.).,Critical Care Center, Seoul National University Hospital, Republic of Korea (E.J.H.)
| | - Kyung Hyun Kim
- From the Department of Neurosurgery, Seoul National University Hospital (E.J.H., K.H.K., K.-C.W., J.H.P., J.Y.L., J.Y., Y.H.B., S.-K.K.), Seoul National University College of Medicine, Republic of Korea.,Division of Pediatric Neurosurgery, Seoul National University Children's Hospital, Republic of Korea (E.J.H., K.H.K., K.-C.W., J.H.P., J.Y.L., J.Y., Y.H.B., S.-K.K.)
| | - Kyu-Chang Wang
- From the Department of Neurosurgery, Seoul National University Hospital (E.J.H., K.H.K., K.-C.W., J.H.P., J.Y.L., J.Y., Y.H.B., S.-K.K.), Seoul National University College of Medicine, Republic of Korea.,Division of Pediatric Neurosurgery, Seoul National University Children's Hospital, Republic of Korea (E.J.H., K.H.K., K.-C.W., J.H.P., J.Y.L., J.Y., Y.H.B., S.-K.K.)
| | - Ji Hoon Phi
- From the Department of Neurosurgery, Seoul National University Hospital (E.J.H., K.H.K., K.-C.W., J.H.P., J.Y.L., J.Y., Y.H.B., S.-K.K.), Seoul National University College of Medicine, Republic of Korea.,Division of Pediatric Neurosurgery, Seoul National University Children's Hospital, Republic of Korea (E.J.H., K.H.K., K.-C.W., J.H.P., J.Y.L., J.Y., Y.H.B., S.-K.K.)
| | - Ji Yeoun Lee
- From the Department of Neurosurgery, Seoul National University Hospital (E.J.H., K.H.K., K.-C.W., J.H.P., J.Y.L., J.Y., Y.H.B., S.-K.K.), Seoul National University College of Medicine, Republic of Korea.,Department of Anatomy (J.Y.L.), Seoul National University College of Medicine, Republic of Korea.,Division of Pediatric Neurosurgery, Seoul National University Children's Hospital, Republic of Korea (E.J.H., K.H.K., K.-C.W., J.H.P., J.Y.L., J.Y., Y.H.B., S.-K.K.)
| | - Jung Won Choi
- Department of Neurosurgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea (J.W.C.)
| | - Byung-Kyu Cho
- Department of Neurosurgery, Armed Forces Capital Hospital, Seongnam, Republic of Korea (B.-K.C.)
| | - Jeyul Yang
- From the Department of Neurosurgery, Seoul National University Hospital (E.J.H., K.H.K., K.-C.W., J.H.P., J.Y.L., J.Y., Y.H.B., S.-K.K.), Seoul National University College of Medicine, Republic of Korea.,Division of Pediatric Neurosurgery, Seoul National University Children's Hospital, Republic of Korea (E.J.H., K.H.K., K.-C.W., J.H.P., J.Y.L., J.Y., Y.H.B., S.-K.K.)
| | - Yoon Hwan Byun
- From the Department of Neurosurgery, Seoul National University Hospital (E.J.H., K.H.K., K.-C.W., J.H.P., J.Y.L., J.Y., Y.H.B., S.-K.K.), Seoul National University College of Medicine, Republic of Korea.,Division of Pediatric Neurosurgery, Seoul National University Children's Hospital, Republic of Korea (E.J.H., K.H.K., K.-C.W., J.H.P., J.Y.L., J.Y., Y.H.B., S.-K.K.)
| | - Seung-Ki Kim
- From the Department of Neurosurgery, Seoul National University Hospital (E.J.H., K.H.K., K.-C.W., J.H.P., J.Y.L., J.Y., Y.H.B., S.-K.K.), Seoul National University College of Medicine, Republic of Korea.,Division of Pediatric Neurosurgery, Seoul National University Children's Hospital, Republic of Korea (E.J.H., K.H.K., K.-C.W., J.H.P., J.Y.L., J.Y., Y.H.B., S.-K.K.)
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Peng X, Zhang Z, Ye D, Xing P, Zou Z, Lei H, Duan L. Gene dysregulation in peripheral blood of moyamoya disease and comparison with other vascular disorders. PLoS One 2019; 14:e0221811. [PMID: 31532776 PMCID: PMC6750579 DOI: 10.1371/journal.pone.0221811] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Accepted: 08/15/2019] [Indexed: 12/21/2022] Open
Abstract
Objective Moyamoya disease (MMD) is a chronic occlusive cerebrovascular disease with unknown etiology, sharing many similar clinical symptoms with other vascular disorders. This study aimed to investigate gene dysregulation in peripheral blood of MMD and compare it with other vascular disorders. Methods Transcriptomic profiles of 12 MMD patients and 8 healthy controls were obtained using RNA sequencing. Differentially expressed genes (DEGs) were identified and several were validated by quantitative real-time PCR in independent samples. Biological pathway enrichment analysis of DEGs and deconvolution of leukocyte subsets in peripheral blood were performed. Expression profiles for other vascular diseases were downloaded from public database and consistent DEGs were calculated. Gene set enrichment analysis (GSEA) was conducted to compare gene dysregulation pattern between MMD and other vascular diseases. Results A total of 533 DEGs were identified for MMD. Up-regulated genes were mainly involved in extracellular matrix (ECM) organization, whereas down-regulated genes were primarily associated with inflammatory and immune responses. As for cell populations, significantly increased naïve B cells and naïve CD4 cells as well as obviously decreased resting natural killer cells were observed in peripheral blood of MMD patients. GSEA analysis indicated that only up-regulated genes of ischemic stroke and down-regulated genes of coronary artery disease and myocardial infarction were enriched in up-regulated and down-regulated genes of MMD, respectively. Conclusion Dysregulated genes in peripheral blood of MMD mainly played key roles in ECM organization, inflammatory and immune responses. This gene dysregulation pattern was specific compared with other vascular diseases. Besides, naïve B cells, naïve CD4 cells and resting natural killer cells were aberrantly disrupted in peripheral blood of MMD patients. These results will help elucidate the complicated pathogenic mechanism of MMD.
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Affiliation(s)
- Xing Peng
- CAS Key Laboratory of Genome Sciences and Information, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Zhengshan Zhang
- Department of Neurosurgery, the Fifth Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Dongqing Ye
- CAS Key Laboratory of Genome Sciences and Information, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing, China
| | - Peiqi Xing
- CAS Key Laboratory of Genome Sciences and Information, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Zhengxing Zou
- Department of Neurosurgery, the Fifth Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Hongxing Lei
- CAS Key Laboratory of Genome Sciences and Information, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China.,Center of Alzheimer's Disease, Beijing Institute for Brain Disorders, Beijing, China
| | - Lian Duan
- Department of Neurosurgery, the Fifth Medical Center, Chinese PLA General Hospital, Beijing, China
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Ravina K, Kim PE, Rennert RC, Wolfswinkel EM, Strickland BA, Carey JN, Russin JJ. Lessons Learned from the Initial Experience with Pedicled Temporoparietal Fascial Flap for Combined Revascularization In Moyamoya Angiopathy: A Case Series. World Neurosurg 2019; 132:e259-e273. [PMID: 31491577 DOI: 10.1016/j.wneu.2019.08.182] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 08/18/2019] [Accepted: 08/22/2019] [Indexed: 10/26/2022]
Abstract
BACKGROUND The pedicled temporoparietal fascial flap (TPFF) with a direct superficial temporal (STA) artery to middle cerebral artery (MCA) bypass is a novel combined revascularization approach for moyamoya angiopathy (MMA). With this case series, we aim to report the initial experience with pedicled TPFF combined revascularization for MMA treatment. METHODS Data from 14 consecutive patients undergoing pedicled TPFF combined revascularization for MMA between May 2016 and December 2018 were retrospectively reviewed. Patients admitted with acute ischemia or a modified Rankin Scale (mRS) score >3 were considered high risk. RESULTS Mean ± standard deviation age on surgery was 41.9 ± 15.4 years. Three of 14 patients (21.4%) presented with an mRS score >3. Nine of 14 patients (64.3%) presented with ischemic stroke, 4 of whom (44.4%) had acute ischemia. Direct anastomosis patency was confirmed in all cases postoperatively. Mean hospitalization time was 13 ± 9.3 days and mean follow-up time was 14.1 ± 9.3 months. From admission to follow-up, neurologic status improved in 8 patients (57.1%) and stabilized in 6 patients (42.9%). Overall, 11/14 patients (78.6%) achieved good functional outcome (mRS score ≤2). All patients achieved some radiographic collateral development, with 5 (71.5%) graded as Matsushima A and B. Three patients developed new radiographic ischemia and 3 experienced wound complications, all in the high-risk group. CONCLUSIONS The TPFF combined approach is a viable strategy for revascularization in MMA. This technique may be suboptimal in patients presenting with acute ischemia and/or mRS score >3.
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Affiliation(s)
- Kristine Ravina
- Neurorestoration Center, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Paul E Kim
- Department of Radiology, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Robert C Rennert
- Department of Neurosurgery, University of California at San Diego, San Diego, California, USA
| | - Erik M Wolfswinkel
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Ben A Strickland
- Department of Neurological Surgery, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Joseph N Carey
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Jonathan J Russin
- Neurorestoration Center, Keck School of Medicine, University of Southern California, Los Angeles, California, USA; Department of Neurological Surgery, Keck School of Medicine, University of Southern California, Los Angeles, California, USA.
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Zhao Y, Lu J, Yu S, Li J, Deng X, Zhang Y, Zhang D, Wang R, Wang H, Zhao Y. Comparison of Long-Term Effect Between Direct and Indirect Bypass for Pediatric Ischemic-Type Moyamoya Disease: A Propensity Score-Matched Study. Front Neurol 2019; 10:795. [PMID: 31417483 PMCID: PMC6684789 DOI: 10.3389/fneur.2019.00795] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2018] [Accepted: 07/10/2019] [Indexed: 11/13/2022] Open
Abstract
Objectives: This study aimed to compare the postoperative risks and long-term effects between direct bypass surgery (DB) and indirect bypass (IB) surgery for pediatric patients with ischemic-type moyamoya disease (MMD). Method: Pediatric patients (under or equal to 18 years old) who were diagnosed as MMD and given surgical treatments at our center between 2009 and 2015 were retrospectively reviewed from a prospective database. Pediatric hemorrhagic-type MMD patients and those who did not undergo digital subtraction angiography (DSA) were excluded. Patients who underwent DB were matched with patients who underwent IB using 1:1 propensity score matching. Postoperative complications, recurrent ischemic stroke events and modified Rankin Scale (mRS) scores at the last follow-up were compared between the matched pairs. Results: A total of 223 pediatric patients were screened, and 138 patients (DB:34, IB:104) were considered for the propensity score match. Thirty four pairs were obtained. Nine patients had postoperative complications, including 6 (17.6%) in the DB group and 3 (8.8%) in the IB group (P = 0.476). The mean follow-up period was 71.9 ± 22.2 months for the DB group and 60.2 ± 24.3 months for the IB group (P = 0.041). Kaplan-Meier analysis showed a longer stroke-free time in the DB group than in the IB group (P = 0.025). At last follow-up, good neurological status (mRS ≤ 1) was achieved in 32 (94.1%) of the DB group and 34 (100.0%) of the IB group. MRS score at last follow-up were significantly lower than at time of admission (all pts: 1.09 ± 0.45 vs. 0.28 ± 0.51, P < 0.001; DB group: 1.12 ± 0.48 vs. 0.32 ± 0.59, P < 0.001; IB group: 1.06 ± 0.42 vs. 0.24 ± 0.43, P < 0.001). Conclusion: Both techniques were effective in improving the neurological status of pediatric ischemic-type MMD patients, and direct bypass surgery might be more superior in preventing recurrent ischemic strokes in the short-term.
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Affiliation(s)
- Yahui Zhao
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Junlin Lu
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Shaochen Yu
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Jiaxi Li
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Xiaofeng Deng
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Yan Zhang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.,Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China.,China National Clinical Research Center for Neurological Diseases, Beijing, China.,Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, Beijing, China
| | - Dong Zhang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.,Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China.,China National Clinical Research Center for Neurological Diseases, Beijing, China.,Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, Beijing, China
| | - Rong Wang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.,Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China.,China National Clinical Research Center for Neurological Diseases, Beijing, China.,Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, Beijing, China
| | - Hao Wang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.,Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China
| | - Yuanli Zhao
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.,Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China.,China National Clinical Research Center for Neurological Diseases, Beijing, China.,Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, Beijing, China
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Yu L, Ma L, Huang Z, Shi Z, Wang R, Zhao Y, Zhang D. Revascularization Surgery in Patients with Ischemic-Type Moyamoya Disease: Predictors for Postoperative Stroke and Long-Term Outcomes. World Neurosurg 2019; 128:e582-e596. [PMID: 31059856 DOI: 10.1016/j.wneu.2019.04.214] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 04/23/2019] [Accepted: 04/24/2019] [Indexed: 11/15/2022]
Abstract
BACKGROUND Recurrent stroke after surgical revascularization is still a big issue for moyamoya disease (MMD). This study aims to identify predictors for postoperative stroke and unfavorable outcome in ischemic-type MMD. METHODS We identified a consecutive series of patients with ischemic-type MMD who underwent revascularization between January 2005 and December 2012. Predictors for postoperative stroke and functional outcomes were assessed with logistic and Cox regression analysis. RESULTS A total of 346 patients underwent 437 revascularization procedures and the mean follow-up period was 4.0 years. The incidence of perioperative stroke was 6.9%. Being adult at onset (odds ratio [OR], 5.033; 95% confidence interval [CI], 1.447-17.506; P = 0.011) and posterior cerebral artery (PCA) stenosis (OR, 3.364; 95% CI, 1.588-7.265; P = 0.002) before surgery were predictors of perioperative stroke. The annual subsequent stroke rate beyond 30 days after surgery was 1.2%. Subsequent stroke events tended to occur throughout the first 5 years after surgery in adults, whereas in children they mainly occurred within the first 2 years after surgery. Age at onset (OR, 1.025; 95% CI, 1.003-1.048; P = 0.023), ischemic stroke or transient ischemic attack at presentation (OR, 2.703; 95% CI, 1.062-6.875; P = 0.037), and PCA involvement (OR, 2.664; 95% CI, 1.462-4.854; P = 0.001) were associated with higher risk of overall postoperative stroke. PCA involvement (OR, 2.62; 95% CI, 1.33-5.15; P = 0.005), internal carotid artery supraclinoid segment occlusion (OR, 2.76; 95% CI, 1.27-6.03; P = 0.011), and older age at onset (OR, 1.03; 95% CI, 1.01-1.05; P = 0.033) were predictive of unfavorable outcome. CONCLUSIONS Patients with ischemic-type MMD at an older age and more severe angiopathy might be at higher risk of recurrent stroke and unfavorable outcome after revascularization.
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Affiliation(s)
- Lebao Yu
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China; China National Clinical Research Center for Neurological Disease, Beijing, China
| | - Li Ma
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China; China National Clinical Research Center for Neurological Disease, Beijing, China
| | - Zheng Huang
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China.
| | - Zhiyong Shi
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China; China National Clinical Research Center for Neurological Disease, Beijing, China
| | - Rong Wang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China; China National Clinical Research Center for Neurological Disease, Beijing, China
| | - Yuanli Zhao
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China; China National Clinical Research Center for Neurological Disease, Beijing, China
| | - Dong Zhang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China; China National Clinical Research Center for Neurological Disease, Beijing, China
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Quon JL, Kim LH, Lober RM, Maleki M, Steinberg GK, Yeom KW. Arterial spin-labeling cerebral perfusion changes after revascularization surgery in pediatric moyamoya disease and syndrome. J Neurosurg Pediatr 2019; 23:486-492. [PMID: 30738390 DOI: 10.3171/2018.11.peds18498] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Accepted: 11/06/2018] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Moyamoya disease is a dynamic cerebrovascular condition that often requires vascular surveillance. Arterial spin labeling (ASL) is an MR perfusion method that is increasingly used for stroke and other various neurovascular pathologies. Unlike perfusion-weighted MRI, ASL uses endogenous water molecules for signal and therefore obviates gadolinium use; and provides direct, not relative, quantitative cerebral blood flow (CBF) measures. Presently, the potential role of ASL for evaluating postoperative pediatric moyamoya patients is relatively unexplored. This study investigated the role for ASL in evaluating cerebral hemodynamic changes in children who underwent revascularization surgery. METHODS This retrospective study examined 15 consecutive pediatric patients with moyamoya disease (n = 7) or moyamoya syndrome (n = 8) presenting between 2010 and 2014 who underwent revascularization and in whom 3T ASL was performed pre- and postoperatively. Postoperative MRI at least 3 months after revascularization procedure was used for analysis. Quantitative CBF in various vascular territories was interrogated: anterior, middle, and posterior cerebral arteries, and basal ganglia supplied by the lenticulostriate collaterals, resulting in evaluation of 20 brain regions. RESULTS After revascularization, CBF in the high middle cerebral artery territory significantly increased (p = 0.0059), accompanied by a decrease in CBF to the ipsilateral lenticulostriate-supplied basal ganglia (p = 0.0053). No perfusion changes occurred in the remaining cerebral vascular territories after surgery. CONCLUSIONS ASL-based quantitative CBF showed improved cerebral perfusion to the middle cerebral artery territory after revascularization in children with both moyamoya syndrome and disease. Reduced perfusion to the basal ganglia might reflect pruning of the lenticulostriate collaterals, potentially from effects of revascularization. ASL can quantitatively evaluate hemodynamic changes in children with moyamoya after revascularization, and it may be a useful adjunct to routine clinical MRI surveillance.
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Affiliation(s)
- Jennifer L Quon
- 1Department of Neurosurgery, Stanford University School of Medicine, Stanford, California
| | - Lily H Kim
- 1Department of Neurosurgery, Stanford University School of Medicine, Stanford, California
| | - Robert M Lober
- 2Department of Neurosurgery, Boonshoft School of Medicine, Wright State University, Dayton, Ohio
| | - Maryam Maleki
- 3John Wayne Cancer Institute, Santa Monica, California; and
| | - Gary K Steinberg
- 1Department of Neurosurgery, Stanford University School of Medicine, Stanford, California
| | - Kristen W Yeom
- 4Division of Pediatric Neuroradiology, Department of Radiology, Lucile Packard Children's Hospital, Stanford University School of Medicine, Stanford, California
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Zheng J, Yu LB, Dai KF, Zhang Y, Wang R, Zhang D. Clinical Features, Surgical Treatment, and Long-Term Outcome of a Multicenter Cohort of Pediatric Moyamoya. Front Neurol 2019; 10:14. [PMID: 30723451 PMCID: PMC6349739 DOI: 10.3389/fneur.2019.00014] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Accepted: 01/07/2019] [Indexed: 11/22/2022] Open
Abstract
Objective: This study aims to investigate the clinical features, long-term outcomes, and prognostic predictors of a multicenter cohort of children with moyamoya disease. Methods: A series of 303 consecutive pediatric moyamoya disease (MMD) patients were screened in the present study. The clinical characteristics were retrospectively collected, and long-term outcomes was evaluated. Furthermore, logistic regression analyses were performed to determine the prognostic predictors for the clinical outcome. Results: The mean onset age at diagnosis was 9.4 years old. The gender ratio (girl-to-boy ratio) was 1.1:1.0. Among these 303 patients, 13 patients underwent different surgical modalities in bilateral hemispheres, while eight patients failed to follow-up, and were excluded. Therefore, a total of 282 patients were analyzed. Among these patients, 17 patients underwent combined bypass (CB), 47 patients underwent direct bypass (DB), 150 patients underwent indirect bypass (IB), and 68 patients underwent conservative treatment. Furthermore, recurrent stroke events were observed in 35 patients (12.4%). The Kaplan-Meier analysis demonstrated that there was no significant difference in either ischemia or hemorrhage-free time among the different surgical modalities (P = 0.67 and 0.79, respectively). Furthermore, longer ischemia-free time was observed in the surgical group, when compared to the conservative group (P < 0.01). In addition, 82.7% (177/214) of patients who underwent surgical treatment obtained good outcomes (mRS 0-1), which were significantly higher than the rate of patients who underwent conservative treatment (52.9%, 36/68; P < 0.01). The rate of patients with improved symptoms was also significantly different (93.0 vs. 16.2%, P < 0.01). However, no significant difference was observed in the rate of good outcomes, disability, and improved symptoms among the different surgical modalities. The logistic regression analyses revealed that postoperative ischemic events were the only risk factor associated with unfavorable clinical outcome (OR:3.463; 95% CI:1.436–8.351; P < 0.01). Conclusion: CB, DB, and IB might have similar effects on long-term clinical outcome in pediatric MMD. However, surgical revascularization is superior, when compared to conservative treatment. Furthermore, postoperative ischemic events were confirmed as potential prognostic factors associated with unfavorable clinical outcome.
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Affiliation(s)
- Jun Zheng
- Department of Neurosurgery, Beijing Tiantan Hospital, China National Clinical Research Center for Neurological Diseases, Capital Medical University, Beijing, China.,Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China.,Department of Neurosurgery, The Second Hospital of Hebei Medical University, Hebei, China
| | - Le-Bao Yu
- Department of Neurosurgery, Beijing Tiantan Hospital, China National Clinical Research Center for Neurological Diseases, Capital Medical University, Beijing, China.,Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China
| | - Ke-Fang Dai
- Department of Neurosurgery, Xingtai Third Hospital, Shandong, China
| | - Yan Zhang
- Department of Neurosurgery, Beijing Tiantan Hospital, China National Clinical Research Center for Neurological Diseases, Capital Medical University, Beijing, China.,Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China
| | - Rong Wang
- Department of Neurosurgery, Beijing Tiantan Hospital, China National Clinical Research Center for Neurological Diseases, Capital Medical University, Beijing, China.,Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China
| | - Dong Zhang
- Department of Neurosurgery, Beijing Tiantan Hospital, China National Clinical Research Center for Neurological Diseases, Capital Medical University, Beijing, China.,Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China
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Zhao Y, Yu S, Lu J, Yu L, Li J, Zhang Y, Zhang D, Wang R, Zhao Y. Direct Bypass Surgery Vs. Combined Bypass Surgery for Hemorrhagic Moyamoya Disease: A Comparison of Angiographic Outcomes. Front Neurol 2018; 9:1121. [PMID: 30619072 PMCID: PMC6306562 DOI: 10.3389/fneur.2018.01121] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Accepted: 12/06/2018] [Indexed: 11/13/2022] Open
Abstract
Objective: Extracranial-intracranial bypass is currently recognized as the optimal treatment for hemorrhagic-type moyamoya disease (MMD) which reduces incidence of rebleeding. Recent studies have reported the advantage of combined bypass over direct bypass for the general MMD patients. However, the effect of direct bypass and combined bypass surgery specifically for hemorrhagic-type MMD had not been investigated yet. Methods: Hemorrhagic-type MMD patients who underwent direct and combined bypass surgery with complete clinical and radiological documentation from a multicenter cohort between 2009 and 2017 were retrospectively included. Surgical methods included superficial temporal artery-middle cerebral artery (STA-MCA) anastomosis (direct bypass), combined STA-MCA bypass with encephalodurosynangiosis (EDS), and combined STA-MCA bypass with encephaloduroarteriosynangiosis (EDAS). Matsushima standard on follow-up catheter angiography was used to assess surgical outcome. Modified Rankin Scale, incidence of rebleeding and ischemia during follow-up were recorded. Rebleeding-free survival rates between direct and combined bypass were compared by Kaplan-Meier analysis. Results: Sixty eight hemorrhagic-onset MMD patients were included in this study, among which 71 hemispheres were treated with surgery (direct bypass: 17; bypass+EDS: 24; bypass+EDAS: 30). Forty six (64.8%) hemispheres had satisfactory revascularization (Matsushima level 2-3) and 26 (36.6%) had poor neoangiogenesis. Matsushima level was not significantly different between surgical groups (P = 0.258). Good neoangiogenesis from dural grafts was achieved in 26 (36.6%) hemispheres, and good neoangiogenesis from STA grafts was only seen in 4 (out of 30, 12.5%) hemispheres. Multivariate analysis showed bypass patency [P < 0.001, OR (95%CI): 13.41 (3.28-54.80)] and dural neoangiogenesis [P < 0.001, OR (95%CI): 13.18 (3.26-53.36)] both independently contributed to good angiographic outcome. During follow-up, incidences of rebleeding or ischemic events, and re-bleeding free survival rate were not significantly different between surgical groups (P = 0.433, P = 0.559, and P = 0.997). However, patients who underwent combined bypass surgery had significantly lower mRS at follow-up comparing to patients who underwent direct bypass (P = 0.006). Conclusion: Combined bypass surgery and direct bypass surgery offered similar revascularization for hemorrhagic MMD. Bypass patency and dural angiogenesis both contributed to revascularization independently. The potential of indirect bypass to grow new vessels in hemorrhagic-MMD patients was generally limited, but dural leaflets offered better neoangiogenesis than STA grafts and was therefore recommended for surgical revascularization of hemorrhagic MMD.
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Affiliation(s)
- Yahui Zhao
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Shaochen Yu
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Junlin Lu
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Lebao Yu
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Jiaxi Li
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Yan Zhang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China
| | - Dong Zhang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China
| | - Rong Wang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China
| | - Yuanli Zhao
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China
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Wang C, Zhao M, Wang J, Wang S, Zhang D, Wang K, Zhao J. Encephaloduroarteriosynangiosis for Pediatric Moyamoya Disease: A Single-Center Experience With 67 Cases in China. J Child Neurol 2018; 33:901-908. [PMID: 30246586 DOI: 10.1177/0883073818798515] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The purpose of this study is to investigate the surgical results and long-term outcomes of encephaloduroarteriosynangiosis for moyamoya disease in pediatric patients. We performed a retrospective analysis of 67 pediatric patients with moyamoya disease who underwent encephaloduroarteriosynangiosis in Beijing Tiantan Hospital. The case series included 36 boys and 31 girls. All the patients underwent surgical revascularization, and a total of 93 encephaloduroarteriosynangiosis procedures were performed (41 unilateral, 26 bilateral). The mean follow-up period after surgery was 30 months. During follow-up, ischemic stroke events were detected in 5 patients and the stroke rate for pediatric patients who underwent encephaloduroarteriosynangiosis procedure was 7.1% per patient-years. At the last follow-up, favorable outcomes (modified Rankin Scale score ≤ 2) were observed in 65 cases (97.0%). Our study suggests that long-term surgical outcome of encephaloduroarteriosynangiosis in pediatric moyamoya disease patients is satisfactory, and this technique has a positive impact on the prevention of stroke recurrence.
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Affiliation(s)
- Chengjun Wang
- 1 Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, PR China.,2 China National Clinical Research Center for Neurological Diseases, Beijing, PR China.,3 Center of Stroke, Beijing Institute for Brain Disorders, Beijing, PR China.,4 Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, Beijing, PR China
| | - Meng Zhao
- 1 Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, PR China.,2 China National Clinical Research Center for Neurological Diseases, Beijing, PR China.,3 Center of Stroke, Beijing Institute for Brain Disorders, Beijing, PR China.,4 Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, Beijing, PR China
| | - Jia Wang
- 1 Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, PR China.,2 China National Clinical Research Center for Neurological Diseases, Beijing, PR China.,3 Center of Stroke, Beijing Institute for Brain Disorders, Beijing, PR China.,4 Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, Beijing, PR China
| | - Shuo Wang
- 1 Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, PR China.,2 China National Clinical Research Center for Neurological Diseases, Beijing, PR China.,3 Center of Stroke, Beijing Institute for Brain Disorders, Beijing, PR China.,4 Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, Beijing, PR China
| | - Dong Zhang
- 1 Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, PR China.,2 China National Clinical Research Center for Neurological Diseases, Beijing, PR China.,3 Center of Stroke, Beijing Institute for Brain Disorders, Beijing, PR China.,4 Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, Beijing, PR China
| | - Kai Wang
- 5 Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, PR China
| | - Jizong Zhao
- 1 Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, PR China.,2 China National Clinical Research Center for Neurological Diseases, Beijing, PR China.,3 Center of Stroke, Beijing Institute for Brain Disorders, Beijing, PR China.,4 Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, Beijing, PR China
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Abstract
Antiplatelet agents used to treat neurovascular disease include aspirin; P2Y12 receptor antagonists clopidogrel, prasugrel, and ticagrelor; ADP antagonist ticlopidine; phosphodiesterase inhibitor dipyridamole; and glycoprotein IIb/IIIa inhibitors abciximab, eptifibatide, and tirofiban. Numerous studies have been performed evaluating their efficacy in stroke, extracranial carotid artery disease and dissection, intracranial atherosclerotic disease, and moyamoya disease. The rapid technological advancements in endovascular neurosurgical devices have also made antiplatelet therapy a necessary part of treating intracranial aneurysms. This article presents the relevant data supporting the use of antiplatelet agents in vascular neurosurgery and recommendations based on the described studies.
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Affiliation(s)
- Amanda S Zakeri
- Department of Neurological Surgery, Ohio State University Medical Center, N-1014 Doan Hall, 410 West 10th Avenue, Columbus, OH 43210, USA
| | - Shahid M Nimjee
- Department of Neurological Surgery, Ohio State University Medical Center, N-1014 Doan Hall, 410 West 10th Avenue, Columbus, OH 43210, USA.
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Gadgil N, Lam S, Pyarali M, Paldino M, Pan IW, Dauser RC. Indirect revascularization with the dural inversion technique for pediatric moyamoya disease: 20-year experience. J Neurosurg Pediatr 2018; 22:541-549. [PMID: 30117790 DOI: 10.3171/2018.5.peds18163] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Accepted: 05/25/2018] [Indexed: 11/06/2022]
Abstract
OBJECTIVENumerous surgical procedures facilitate revascularization of the ischemic brain in patients with moyamoya disease. Dural inversion is a technique in which flaps of dura mater centered around the middle meningeal artery are inverted, encouraging the formation of a rich collateral blood supply. This procedure has been used in combination with encephaloduroarteriosynangiosis for more than 20 years at the authors' institution for the treatment of pediatric moyamoya disease. The objective of this study was to describe the clinical and radiographic outcomes for a cohort of consecutive pediatric moyamoya patients undergoing dural inversion.METHODSClinical and radiographic data on patients who had undergone dural inversion in the period from 1997 to 2016 were reviewed. Univariate and multivariate logistic regression and Kaplan-Meier analyses were performed to assess the risk of postoperative stroke, functional outcome, and the angiographic degree of revascularization.RESULTSDural inversion was performed on 169 hemispheres in 102 patients. Median follow-up was 4.3 years. Six patients (3.6% of hemispheres) suffered postoperative ischemic or hemorrhagic stroke. Overall mortality was 1.0%. Good postoperative neurological status (modified Rankin Scale [mRS] score ≤ 2) was observed in 90 patients (88%); preoperative and postoperative mRS scores showed significant improvement (p < 0.001). Eighty-six percent of hemispheres had Matsushima grade A or B revascularization. Younger age was associated with postoperative stroke and poor functional outcome. Patients with secondary moyamoya syndrome had a significantly worse radiographic outcome. The cumulative 5-year Kaplan-Meier risk for stroke was 6.4%.CONCLUSIONSDural inversion is a useful technique of cerebral revascularization in pediatric moyamoya disease. A 20-year experience demonstrates the safety and efficacy of this technique with a relatively low rate of postoperative stroke, good functional outcomes, and favorable angiographic results.
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Affiliation(s)
- Nisha Gadgil
- 1Department of Neurosurgery, Division of Pediatric Neurosurgery, Baylor College of Medicine/Texas Children's Hospital; and
| | - Sandi Lam
- 1Department of Neurosurgery, Division of Pediatric Neurosurgery, Baylor College of Medicine/Texas Children's Hospital; and
| | - Monika Pyarali
- 1Department of Neurosurgery, Division of Pediatric Neurosurgery, Baylor College of Medicine/Texas Children's Hospital; and
| | - Michael Paldino
- 2Department of Radiology, Texas Children's Hospital, Houston, Texas
| | - I-Wen Pan
- 1Department of Neurosurgery, Division of Pediatric Neurosurgery, Baylor College of Medicine/Texas Children's Hospital; and
| | - Robert C Dauser
- 1Department of Neurosurgery, Division of Pediatric Neurosurgery, Baylor College of Medicine/Texas Children's Hospital; and
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Zhang Y, Bao XY, Duan L, Yang WZ, Li DS, Zhang ZS, Han C, Zhao F, Zhang Q, Wang QN. Encephaloduroarteriosynangiosis for pediatric moyamoya disease: long-term follow-up of 100 cases at a single center. J Neurosurg Pediatr 2018; 22:173-180. [PMID: 29856299 DOI: 10.3171/2018.2.peds17591] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECTIVE The object of this study was to summarize the long-term effect of encephaloduroarteriosynangiosis (EDAS) for the treatment of pediatric moyamoya disease (MMD) and to investigate factors influencing the clinical outcomes of EDAS. METHODS Clinical features, angiographic findings, and clinical outcomes were analyzed among MMD patients younger than 18 years who had been treated with EDAS between 2002 and 2007 at the authors' institution. The Kaplan-Meier method was used to estimate stroke risk after EDAS. Predictors of neurological outcome were assessed. RESULTS One hundred fifteen patients were identified. The mean age at symptom onset was 7.3 ± 4.0 years. The incidence of familial MMD was 11.3%. The female/male ratio was 1:1.16. A total of 232 EDAS procedures were performed, and the incidence of postoperative complications was 3%. Postoperative digital subtraction angiography was performed in 54% of the patients, and about 80% of the hemispheres showed good or excellent results. Neovascularization showed significant correlations with delay time (from symptom onset to first operation), Suzuki stage, and preoperative stroke (all p < 0.05). Clinical follow-up was available in 100 patients with a mean follow-up of 124.4 ± 10.5 months. Ten-year cumulative survival was 96.5% after surgery, and the risk of stroke was 0.33%/person-year. An independent life with no significant disability was reported by 92% of the patients. A good outcome correlated with a low Suzuki stage (p = 0.001). Older children and those without preoperative stroke had better clinical outcomes (p < 0.05). CONCLUSIONS On the basis of long-term follow-up data, the authors concluded that EDAS is a safe and effective treatment for pediatric MMD, can reduce the risk of subsequent neurological events, and can improve quality of life. The risk of ischemia-related complications was higher in younger patients, and older children showed better outcomes. Compensation was greater with more prominent cerebral ischemia. The long-term clinical outcome largely depended on the presence and extent of preoperative stroke.
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Affiliation(s)
- Yong Zhang
- 1Department of Neurosurgery, 307th Hospital of People's Liberation Army, 307 Clinical College, Anhui Medical University; and.,2Department of Neurosurgery, 307th Hospital of People's Liberation Army, The Center for Cerebral Vascular Disease, PLA, Beijing, People's Republic of China
| | - Xiang-Yang Bao
- 2Department of Neurosurgery, 307th Hospital of People's Liberation Army, The Center for Cerebral Vascular Disease, PLA, Beijing, People's Republic of China
| | - Lian Duan
- 1Department of Neurosurgery, 307th Hospital of People's Liberation Army, 307 Clinical College, Anhui Medical University; and.,2Department of Neurosurgery, 307th Hospital of People's Liberation Army, The Center for Cerebral Vascular Disease, PLA, Beijing, People's Republic of China
| | - Wei-Zhong Yang
- 2Department of Neurosurgery, 307th Hospital of People's Liberation Army, The Center for Cerebral Vascular Disease, PLA, Beijing, People's Republic of China
| | - De-Sheng Li
- 2Department of Neurosurgery, 307th Hospital of People's Liberation Army, The Center for Cerebral Vascular Disease, PLA, Beijing, People's Republic of China
| | - Zheng-Shan Zhang
- 2Department of Neurosurgery, 307th Hospital of People's Liberation Army, The Center for Cerebral Vascular Disease, PLA, Beijing, People's Republic of China
| | - Cong Han
- 2Department of Neurosurgery, 307th Hospital of People's Liberation Army, The Center for Cerebral Vascular Disease, PLA, Beijing, People's Republic of China
| | - Feng Zhao
- 2Department of Neurosurgery, 307th Hospital of People's Liberation Army, The Center for Cerebral Vascular Disease, PLA, Beijing, People's Republic of China
| | - Qian Zhang
- 2Department of Neurosurgery, 307th Hospital of People's Liberation Army, The Center for Cerebral Vascular Disease, PLA, Beijing, People's Republic of China
| | - Qian-Nan Wang
- 2Department of Neurosurgery, 307th Hospital of People's Liberation Army, The Center for Cerebral Vascular Disease, PLA, Beijing, People's Republic of China
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Funaki T, Takahashi JC, Miyamoto S. Late Cerebrovascular Events and Social Outcome after Adolescence: Long-term Outcome of Pediatric Moyamoya Disease. Neurol Med Chir (Tokyo) 2018; 58:240-246. [PMID: 29780072 PMCID: PMC6002682 DOI: 10.2176/nmc.ra.2018-0026] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
In this article, the authors review the literature related to long-term outcome of pediatric moyamoya disease, focusing on late cerebrovascular events and social outcome of pediatric patients once they reach adulthood. Late-onset de novo hemorrhage is rare but more serious than recurrence of ischemic stroke. Long-term follow-up data on Asian populations suggest that the incidence of de novo hemorrhage might increase at age 20 or later, even more than 10 years after bypass surgery. Social adaptation difficulty, possibly related to cognitive impairment caused by frontal ischemia, continues in 10-20% of patients after they reach adulthood, even if no significant disability is present in daily life. A treatment strategy aimed at improving long-term outcome and careful follow-up might be required.
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Affiliation(s)
- Takeshi Funaki
- Department of Neurosurgery, Kyoto University Graduate School of Medicine
| | - Jun C Takahashi
- Department of Neurosurgery, National Cerebral and Cardiovascular Center
| | - Susumu Miyamoto
- Department of Neurosurgery, Kyoto University Graduate School of Medicine
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48
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Bao XY, Zhang Y, Wang QN, Zhang Q, Wang H, Zhang ZS, Li DS, Duan L. Long-term Outcomes After Encephaloduroarteriosynangiosis in Adult Patients with Moyamoya Disease Presenting with Ischemia. World Neurosurg 2018; 115:e482-e489. [PMID: 29684518 DOI: 10.1016/j.wneu.2018.04.076] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Revised: 04/10/2018] [Accepted: 04/11/2018] [Indexed: 10/17/2022]
Abstract
BACKGROUND In adult Moyamoya disease (MMD), there remains controversy about the effectiveness of revascularization surgeries because randomized studies have not been performed to compare the efficacy of surgical techniques. This study was conducted to assess the most appropriate surgical treatment for adult patients with MMD. METHODS Encephaloduroarteriosynangiosis (EDAS) was performed on 247 hemispheres in 145 patients. The clinical and demographic characteristics of patients were obtained via retrospective chart review. Clinical and angiographic states were evaluated retrospectively using quantitative methods. The mean duration of clinical follow up was 141.4 ± 19.5 months. RESULTS A total of 247 EDAS procedures were performed in 145 patients, including 15 EDAS performed using the occipital artery as the donor vessel. The mortality rate was 0%, and the permanent morbidity rates were 1.2% per operation and 2.0% per person. The mean modified Rankin Scale score was 1.21 ± 1.31 postoperatively and 1.01 ± 1.39 at the last follow-up. Of the 109 hemispheres studied, 45% were classified as grade A, 34% as grade B, and 21% as grade C collateral circulation. The annual rates of stroke were calculated to be 0.73% per person-year. Overall, the 1-,5-, and 10-year actuarial stroke rates were 2.1±1.2%, 6.8±2.1%, and 8.9±2.4%, respectively. Bilateral involvement was a common significant factor in any, hemorrhagic, and ischemic strokes. Hypertension was a risk factor for ischemic strokes during follow-up. CONCLUSIONS EDAS is an effective procedure in a Chinese cohort of patients with MMD. EDAS resulted in satisfactory long-term improvement of clinical states and prevention of recurrent strokes.
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Affiliation(s)
- Xiang-Yang Bao
- Department of Neurosurgery, 307th Hospital of People's Liberation Army, Center for Cerebral Vascular Disease, Beijing, China
| | - Yong Zhang
- Department of Neurosurgery, 307th Hospital of People's Liberation Army, Center for Cerebral Vascular Disease, Beijing, China; Department of Neurosurgery, 307th Hospital of People's Liberation Army, 307 Clinical College, Anhui Medical University, Beijing, China
| | - Qian-Nan Wang
- Department of Neurosurgery, 307th Hospital of People's Liberation Army, Center for Cerebral Vascular Disease, Beijing, China
| | - Qian Zhang
- Department of Neurosurgery, 307th Hospital of People's Liberation Army, Center for Cerebral Vascular Disease, Beijing, China
| | - Hui- Wang
- Department of Neurosurgery, 307th Hospital of People's Liberation Army, Center for Cerebral Vascular Disease, Beijing, China
| | - Zheng-Shan Zhang
- Department of Neurosurgery, 307th Hospital of People's Liberation Army, Center for Cerebral Vascular Disease, Beijing, China
| | - De-Sheng Li
- Department of Neurosurgery, 307th Hospital of People's Liberation Army, Center for Cerebral Vascular Disease, Beijing, China
| | - Lian Duan
- Department of Neurosurgery, 307th Hospital of People's Liberation Army, Center for Cerebral Vascular Disease, Beijing, China.
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Tho-Calvi SC, Thompson D, Saunders D, Agrawal S, Basu A, Chitre M, Chow G, Gibbon F, Hart A, Tallur KK, Kirkham F, Kneen R, McCullagh H, Mewasingh L, Vassallo G, Vijayakumar K, Wraige E, Yeo TH, Ganesan V. Clinical features, course, and outcomes of a UK cohort of pediatric moyamoya. Neurology 2018; 90:e763-e770. [DOI: 10.1212/wnl.0000000000005026] [Citation(s) in RCA: 92] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Accepted: 11/17/2017] [Indexed: 11/15/2022] Open
Abstract
ObjectiveTo describe characteristics and course of a large UK cohort of children with moyamoya from multiple centers and examine prognostic predictors.MethodsRetrospective review of case notes/radiology, with use of logistic regression to explore predictors of outcome.ResultsEighty-eight children (median presentation age 5.1 years) were included. Thirty-six presented with arterial ischemic stroke (AIS) and 29 with TIA. Eighty had bilateral and 8 unilateral carotid circulation disease; 29 patients had posterior circulation involvement. Acute infarction was present in 36/176 hemispheres and chronic infarction in 86/176 hemispheres at the index presentation. Sixty-two of 82 with symptomatic presentation had at least one clinical recurrence. Fifty-five patients were treated surgically, with 37 experiencing fewer recurrences after surgery. Outcome was categorized as good using the Recovery and Recurrence Questionnaire in 39/85 patients. On multivariable analysis, presentation with TIA (odds ratio [OR] 0.09, 95% confidence interval [CI] 0.02–0.35), headache (OR 0.10, 95% CI 0.02–0.58), or no symptoms (OR 0.08, 95% CI 0.01–0.68) was less likely to predict poor outcome than AIS presentation. Posterior circulation involvement predicted poor outcome (OR 4.22, 95% CI 1.23–15.53). Surgical revascularization was not a significant predictor of outcome.ConclusionsMoyamoya is associated with multiple recurrences, progressive arteriopathy, and poor outcome in half of patients, especially with AIS presentation and posterior circulation involvement. Recurrent AIS is rare after surgery. Surgery was not a determinant of overall outcome, likely reflecting surgical case selection and presentation clinical status.
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Zhao M, Zhang D, Wang S, Zhang Y, Deng X, Zhao J. The Collateral Circulation in Moyamoya Disease: A Single-Center Experience in 140 Pediatric Patients. Pediatr Neurol 2017; 77:78-83. [PMID: 29107436 DOI: 10.1016/j.pediatrneurol.2017.08.016] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Revised: 08/17/2017] [Accepted: 08/20/2017] [Indexed: 11/16/2022]
Abstract
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. We classified spontaneous collaterals into two groups by their origins, the internal carotid artery and vertebral artery (ICA-VA)-originated collaterals and the external carotid artery (ECA)-originated collaterals. MAIN FINDINGS A total of 140 pediatric patients with moyamoya disease (mean age, 10.1 ± 3.7 years) were included in this study. We identified collaterals originated from ICA-VA in 122 (87.1%) pediatric patients (222 hemispheres). Patients in the ICA-VA collaterals group had similar Suzuki stages with patients without collaterals originated from ICA-VA (mean, 3.86 vs 3.50; P = 0.157). We identified collaterals originated from ECAs in 70 (50.0%) pediatric patients (106 hemispheres) with moyamoya disease. The infarctions were more common in patients with ECA-originated collaterals than in patients without ECA-originated collaterals (25 versus 12; P = 0.021). PRINCIPAL CONCLUSIONS Our results demonstrate that collaterals originating from ECAs are associated with advanced Suzuki stages and infarction presentations in children with moyamoya disease.
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Affiliation(s)
- Meng Zhao
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China; China National Clinical Research Center for Neurological Diseases, Beijing, China; Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China
| | - Dong Zhang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China; China National Clinical Research Center for Neurological Diseases, Beijing, China; Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China
| | - Shuo Wang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China; China National Clinical Research Center for Neurological Diseases, Beijing, China; Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China
| | - Yan Zhang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China; China National Clinical Research Center for Neurological Diseases, Beijing, China; Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China
| | - Xiaofeng Deng
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China; China National Clinical Research Center for Neurological Diseases, Beijing, China; Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China
| | - Jizong Zhao
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China; China National Clinical Research Center for Neurological Diseases, Beijing, China; Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China.
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