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Zhao MY, Tong E, Duarte Armindo R, Fettahoglu A, Choi J, Bagley J, Yeom KW, Moseley M, Steinberg GK, Zaharchuk G. Short- and Long-Term MRI Assessed Hemodynamic Changes in Pediatric Moyamoya Patients After Revascularization. J Magn Reson Imaging 2024; 59:1349-1357. [PMID: 37515518 DOI: 10.1002/jmri.28902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Revised: 06/28/2023] [Accepted: 06/29/2023] [Indexed: 07/31/2023] Open
Abstract
BACKGROUND Cerebrovascular reserve (CVR) reflects the capacity of cerebral blood flow (CBF) to change following a vasodilation challenge. Decreased CVR is associated with a higher stroke risk in patients with cerebrovascular diseases. While revascularization can improve CVR and reduce this risk in adult patients with vasculopathy such as those with Moyamoya disease, its impact on hemodynamics in pediatric patients remains to be elucidated. Arterial spin labeling (ASL) is a quantitative MRI technique that can measure CBF, CVR, and arterial transit time (ATT) non-invasively. PURPOSE To investigate the short- and long-term changes in hemodynamics after bypass surgeries in patients with Moyamoya disease. STUDY TYPE Longitudinal. POPULATION Forty-six patients (11 months-18 years, 28 females) with Moyamoya disease. FIELD STRENGTH/SEQUENCE 3-T, single- and multi-delay ASL, T1-weighted, T2-FLAIR, 3D MRA. ASSESSMENT Imaging was performed 2 weeks before and 1 week and 6 months after surgical intervention. Acetazolamide was employed to induce vasodilation during the imaging procedure. CBF and ATT were measured by fitting the ASL data to the general kinetic model. CVR was computed as the percentage change in CBF. The mean CBF, ATT, and CVR values were measured in the regions affected by vasculopathy. STATISTICAL TESTS Pre- and post-revascularization CVR, CBF, and ATT were compared for different regions of the brain. P-values <0.05 were considered statistically significant. RESULTS ASL-derived CBF in flow territories affected by vasculopathy significantly increased after bypass by 41 ± 31% within a week. At 6 months, CBF significantly increased by 51 ± 34%, CVR increased by 68 ± 33%, and ATT was significantly reduced by 6.6 ± 2.9%. DATA CONCLUSION There may be short- and long-term improvement in the hemodynamic parameters of pediatric Moyamoya patients after bypass surgery. EVIDENCE LEVEL 4 TECHNICAL EFFICACY: Stage 2.
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Affiliation(s)
- Moss Y Zhao
- Department of Radiology, Stanford University, Stanford, California, USA
| | - Elizabeth Tong
- Department of Radiology, Stanford University, Stanford, California, USA
| | - Rui Duarte Armindo
- Department of Radiology, Stanford University, Stanford, California, USA
- Department of Neuroradiology, Hospital Beatriz Ângelo, Lisbon, Portugal
| | - Ates Fettahoglu
- Department of Radiology, Stanford University, Stanford, California, USA
| | - Jason Choi
- Department of Neurosurgery, Stanford University, Stanford, California, USA
| | - Jacob Bagley
- Department of Neurosurgery, Stanford University, Stanford, California, USA
| | - Kristen W Yeom
- Department of Radiology, Stanford University, Stanford, California, USA
| | - Michael Moseley
- Department of Radiology, Stanford University, Stanford, California, USA
| | - Gary K Steinberg
- Department of Neurosurgery, Stanford University, Stanford, California, USA
| | - Greg Zaharchuk
- Department of Radiology, Stanford University, Stanford, California, USA
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Abhinav K, Lee AG, Pendharkar AV, Bigder M, Bet A, Rosenberg-Hasson Y, Cheng MY, Steinberg GK. Comprehensive Profiling of Secreted Factors in the Cerebrospinal Fluid of Moyamoya Disease Patients. Transl Stroke Res 2024; 15:399-408. [PMID: 36745304 PMCID: PMC10891229 DOI: 10.1007/s12975-023-01135-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 01/27/2023] [Accepted: 01/30/2023] [Indexed: 02/07/2023]
Abstract
Moyamoya disease (MMD) is characterized by progressive occlusion of the intracranial internal carotid arteries, leading to ischemic and hemorrhagic events. Significant clinical differences exist between ischemic and hemorrhagic MMD. To understand the molecular profiles in the cerebrospinal fluid (CSF) of MMD patients, we investigated 62 secreted factors in both MMD subtypes (ischemic and hemorrhagic) and examined their relationship with preoperative perfusion status, the extent of postoperative angiographic revascularization, and functional outcomes. Intraoperative CSF was collected from 32 control and 71 MMD patients (37 ischemic and 34 hemorrhagic). Multiplex Luminex assay analysis showed that 41 molecules were significantly elevated in both MMD subtypes when compared to controls, including platelet-derived growth factor-BB (PDGF-BB), plasminogen activator inhibitor 1 (PAI-1), and intercellular adhesion molecule 1 (ICAM1) (p < 0.001). Many of these secreted proteins have not been previously reported in MMD, including interleukins (IL-2, IL-4, IL-5, IL-7, IL-8, IL-9, IL-17, IL-18, IL-22, and IL-23) and C-X-C motif chemokines (CXCL1 and CXCL9). Pathway analysis indicated that both MMD subtypes exhibited similar cellular/molecular functions and pathways, including cellular activation, migration, and inflammatory response. While neuroinflammation and dendritic cell pathways were activated in MMD patients, lipid signaling pathways involving nuclear receptors, peroxisome proliferator-activated receptor (PPAR), and liver X receptors (LXR)/retinoid X receptors (RXR) signaling were inhibited. IL-13 and IL-2 were negatively correlated with preoperative cerebral perfusion status, while 7 factors were positively correlated with the extent of postoperative revascularization. These elevated cytokines, chemokines, and growth factors in CSF may contribute to the pathogenesis of MMD and represent potential future therapeutic targets.
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Affiliation(s)
- Kumar Abhinav
- Department of Neurosurgery, Stanford University School of Medicine, 1201 Welch Road, MSLS P305, Stanford, CA, 94305, USA
- Stanford Stroke Center, Stanford University School of Medicine, Stanford, CA, USA
- Department of Neurosurgery, Bristol Institute of Clinical Neuroscience, Southmead Hospital, Bristol, UK
| | - Alex G Lee
- Division of Hematology and Oncology, Department of Pediatrics, University of California, San Francisco, CA, USA
| | - Arjun V Pendharkar
- Department of Neurosurgery, Stanford University School of Medicine, 1201 Welch Road, MSLS P305, Stanford, CA, 94305, USA
- Stanford Stroke Center, Stanford University School of Medicine, Stanford, CA, USA
| | - Mark Bigder
- Department of Neurosurgery, Stanford University School of Medicine, 1201 Welch Road, MSLS P305, Stanford, CA, 94305, USA
- Stanford Stroke Center, Stanford University School of Medicine, Stanford, CA, USA
| | - Anthony Bet
- Department of Neurosurgery, Stanford University School of Medicine, 1201 Welch Road, MSLS P305, Stanford, CA, 94305, USA
| | - Yael Rosenberg-Hasson
- Human Immune Monitoring Center, Stanford University School of Medicine, Stanford, CA, USA
| | - Michelle Y Cheng
- Department of Neurosurgery, Stanford University School of Medicine, 1201 Welch Road, MSLS P305, Stanford, CA, 94305, USA
- Stanford Stroke Center, Stanford University School of Medicine, Stanford, CA, USA
| | - Gary K Steinberg
- Department of Neurosurgery, Stanford University School of Medicine, 1201 Welch Road, MSLS P305, Stanford, CA, 94305, USA.
- Stanford Stroke Center, Stanford University School of Medicine, Stanford, CA, USA.
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Qi X, Zhang X, Shen H, Su J, Gao X, Li Y, Yang H, Gao C, Ni W, Lei Y, Gu Y, Mao Y, Yu Y. Switching of brain networks across different cerebral perfusion states: insights from EEG dynamic microstate analyses. Cereb Cortex 2024; 34:bhae035. [PMID: 38342687 DOI: 10.1093/cercor/bhae035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 01/16/2024] [Accepted: 01/17/2024] [Indexed: 02/13/2024] Open
Abstract
The alteration of neural interactions across different cerebral perfusion states remains unclear. This study aimed to fulfill this gap by examining the longitudinal brain dynamic information interactions before and after cerebral reperfusion. Electroencephalogram in eyes-closed state at baseline and postoperative 7-d and 3-month follow-ups (moyamoya disease: 20, health controls: 23) were recorded. Dynamic network analyses were focused on the features and networks of electroencephalogram microstates across different microstates and perfusion states. Considering the microstate features, the parameters were disturbed of microstate B, C, and D but preserved of microstate A. The transition probabilities of microstates A-B and B-D were increased to play a complementary role across different perfusion states. Moreover, the microstate variability was decreased, but was significantly improved after cerebral reperfusion. Regarding microstate networks, the functional connectivity strengths were declined, mainly within frontal, parietal, and occipital lobes and between parietal and occipital lobes in different perfusion states, but were ameliorated after cerebral reperfusion. This study elucidates how dynamic interaction patterns of brain neurons change after cerebral reperfusion, which allows for the observation of brain network transitions across various perfusion states in a live clinical setting through direct intervention.
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Affiliation(s)
- Xiaoying Qi
- Department of Physiology, School of Medicine, Yan'an University, Yan'an 716000, China
- School of Life Science and Human Phenome Institute, Research Institute of Intelligent Complex Systems and Institute of Science and Technology for Brain-Inspired Intelligence Fudan University, Shanghai 200433, China
| | - Xin Zhang
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai 200040, China
- National Center for Neurological Disorders, Fudan University, Shanghai 200433, China
| | - Hao Shen
- School of Life Science and Human Phenome Institute, Research Institute of Intelligent Complex Systems and Institute of Science and Technology for Brain-Inspired Intelligence Fudan University, Shanghai 200433, China
| | - Jiabin Su
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai 200040, China
- National Center for Neurological Disorders, Fudan University, Shanghai 200433, China
| | - Xinjie Gao
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai 200040, China
- National Center for Neurological Disorders, Fudan University, Shanghai 200433, China
| | - Yanjiang Li
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai 200040, China
- National Center for Neurological Disorders, Fudan University, Shanghai 200433, China
| | - Heng Yang
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai 200040, China
- National Center for Neurological Disorders, Fudan University, Shanghai 200433, China
| | - Chao Gao
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai 200040, China
- National Center for Neurological Disorders, Fudan University, Shanghai 200433, China
| | - Wei Ni
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai 200040, China
- National Center for Neurological Disorders, Fudan University, Shanghai 200433, China
| | - Yu Lei
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai 200040, China
- National Center for Neurological Disorders, Fudan University, Shanghai 200433, China
| | - Yuxiang Gu
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai 200040, China
- National Center for Neurological Disorders, Fudan University, Shanghai 200433, China
| | - Ying Mao
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai 200040, China
- National Center for Neurological Disorders, Fudan University, Shanghai 200433, China
| | - Yuguo Yu
- School of Life Science and Human Phenome Institute, Research Institute of Intelligent Complex Systems and Institute of Science and Technology for Brain-Inspired Intelligence Fudan University, Shanghai 200433, China
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Rennert RC, Brandel MG, Budohoski KP, Twitchell S, Fredrickson VL, Grandhi R, Couldwell WT. Influence of Patient and Technical Variables on Combined Direct and Indirect Cerebral Revascularization: Case Series. Oper Neurosurg (Hagerstown) 2023; 24:610-618. [PMID: 36786755 DOI: 10.1227/ons.0000000000000618] [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: 09/07/2022] [Accepted: 11/05/2022] [Indexed: 02/15/2023] Open
Abstract
BACKGROUND Cerebral bypass for flow augmentation is an important technique for selected neurosurgical patients, with multiple techniques used (direct, indirect, or combined). OBJECTIVE To assess the impact of patient and technical variables on direct and indirect bypass flow after combined revascularization. METHODS This was a retrospective, single-institution review of patients undergoing direct superficial temporal artery-to-middle cerebral artery bypass with indirect encephaloduro-myosynangiosis for moyamoya disease and steno-occlusive cerebrovascular disease over a 2-year period. We evaluated the effect of baseline patient characteristics, preoperative imaging characteristics, and operative variables on direct and indirect patency grades. RESULTS Twenty-six hemispheres (8 moyamoya disease and 18 steno-occlusive cerebrovascular disease) in 23 patients were treated with combined revascularization. The mean patient age was 53.4 ± 19.1 years. Direct bypass patency was 96%. Over a mean follow-up of 8.3 ± 5.4 months, there were 3 strokes in the treated hemispheres (11.5%). The mean modified Rankin Scale score improved from 1.3 ± 1.1 preoperatively to 0.7 ± 0.8 postoperatively. Preservation of the nondonor superficial temporal artery branch was associated with a lower direct bypass grade ( P < .01), whereas greater mean time to maximum perfusion (Tmax)> 4 and >6 seconds and mismatch volumes were associated with higher direct bypass grades ( P < .05). Tmax >4-second volume inversely predicted indirect bypass patency. CONCLUSION Patient and technical variables may influence the relative contributions of the direct and indirect components of combined revascularizations.
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Affiliation(s)
- Robert C Rennert
- Department of Neurosurgery, Clinical Neurosciences Center, University of Utah, Salt Lake City, Utah, USA
| | - Michael G Brandel
- Department of Neurological Surgery, University of California San Diego, San Diego, California, USA
| | - Karol P Budohoski
- Department of Neurosurgery, Clinical Neurosciences Center, University of Utah, Salt Lake City, Utah, USA
| | - Spencer Twitchell
- Department of Neurosurgery, Clinical Neurosciences Center, University of Utah, Salt Lake City, Utah, USA
| | - Vance L Fredrickson
- Department of Neurosurgery, Clinical Neurosciences Center, University of Utah, Salt Lake City, Utah, USA
| | - Ramesh Grandhi
- Department of Neurosurgery, Clinical Neurosciences Center, University of Utah, Salt Lake City, Utah, USA
| | - William T Couldwell
- Department of Neurosurgery, Clinical Neurosciences Center, University of Utah, Salt Lake City, Utah, USA
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Rennert RC, Russin JJ. Rethinking Cerebral Bypass Surgery. Neurosurg Clin N Am 2022; 33:403-417. [DOI: 10.1016/j.nec.2022.05.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Wang G, Wang Z, Wen Y, Chen S, Li M, Zhang G, Yu H, Zhang S, Xu H, Qi S, Feng W. A preliminary report of one session treatment with cranioplasty and STA-MCA bypass for hemorrhagic MMD patients with skull defect. World Neurosurg 2022; 164:276-280. [PMID: 35618236 DOI: 10.1016/j.wneu.2022.05.071] [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: 04/30/2022] [Revised: 05/16/2022] [Accepted: 05/17/2022] [Indexed: 10/18/2022]
Abstract
OBJECTIVE To conduct a retrospective analysis of the safety and efficacy of one session treatment with cranioplasty and STA-MCA bypass after decompressive craniectomy (DC)in hemorrhagic moyamoya disease. METHODS From March 2019 to August 2021, five patients with hemorrhagic MMD after DC were admitted in nan fang hospital. All patients received digital subtraction angiography (DSA) to exclude any spontaneous revascularization between the cortex and temporal muscle and the preservation of STA. Then one stage treatment with superficial temporal artery-middle cerebral artery (STA-MCA) bypass and cranioplasty were performed. If no suitable recipient artery was available, an encephalo-myo-synangiosis (EMS) procedure was used as a salvage plan. RESULTS Four patients underwent direct STA-MCA bypass, while one underwent EMS due to absence of a suitable recipient artery. All patients had no hemorrhage on postoperative CT, and no new infarcts were detected on MRI. There were no new recurrent symptoms at clinical follow-up 8 to 24 months after surgery. Three patients had improved Glasgow Outcome Scores (GOS), and two patients had stable GOS scores. Perfusion CT showed improvement in cerebral hemodynamics. Four DSA follow-up were performed, suggesting graft patency. CONCLUSION One session treatment with EC-IC bypass and cranioplasty are safe and effective in patients with MMD who have undergone previous decompressive craniectomy due to hemorrhagic attack.
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Affiliation(s)
- Gang Wang
- Department of neurosurgery, Nanfang Hospital, Southern Medical University, China; People's hospital of Huazhou
| | - Zhibin Wang
- Department of neurosurgery, Nanfang Hospital, Southern Medical University, China
| | - Yunyu Wen
- Department of neurosurgery, Nanfang Hospital, Southern Medical University, China
| | - Siyuan Chen
- Department of neurosurgery, Nanfang Hospital, Southern Medical University, China
| | - Mingzhou Li
- Department of neurosurgery, Nanfang Hospital, Southern Medical University, China
| | - Guozhong Zhang
- Department of neurosurgery, Nanfang Hospital, Southern Medical University, China
| | - Huiping Yu
- Quanzhou First Hospital, Fujian Medical University, China
| | - Shichao Zhang
- Department of neurosurgery, Nanfang Hospital, Southern Medical University, China
| | - Haiyan Xu
- Department of neurosurgery, Nanfang Hospital, Southern Medical University, China
| | - Songtao Qi
- Department of neurosurgery, Nanfang Hospital, Southern Medical University, China
| | - Wenfeng Feng
- Department of neurosurgery, Nanfang Hospital, Southern Medical University, China.
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Li Y, Wang AR, Steinberg GK. Safety and Efficacy of Induced Hypertension and Hypervolemia in Preventing Neurologic Complications After Combined Direct and Indirect Bypass in Hemorrhagic-Onset Moyamoya Disease. World Neurosurg 2022; 160:e381-e387. [PMID: 35026459 DOI: 10.1016/j.wneu.2022.01.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 01/04/2022] [Accepted: 01/05/2022] [Indexed: 11/19/2022]
Abstract
BACKGROUND Perioperative management of blood pressure in patients undergoing surgical revascularization for moyamoya disease (MMD) remains a controversial topic. We evaluated the safety and efficacy of induced hypertension and hypervolemia (IHH) in preventing neurologic complications during the perioperative period after direct surgical revascularization in a large hemorrhagic-onset moyamoya disease (HOMMD) cohort. METHODS We retrospectively reviewed a prospectively managed departmental database of all HOMMD patients treated between 1987 and 2019. The study included 122 direct surgical revascularization patients. Patients were separated into groups on the basis of the presence or absence of IHH therapy and evaluated for occurrence of 30-day risk of transient neurologic events (TNEs), ischemic, and hemorrhagic complications. RESULTS Two-hundred and three revascularization procedures were performed on 122 patients for HOMMD treatment. Nineteen TNEs (9.4% of procedures) were observed in 18 (14.8%) patients. Two patients (1.6% and 1.0% of procedures) suffered from ischemic complications and 1 (0.8% and 0.5% of procedures) from hemorrhagic complications. No differences between groups in the severity, duration of TNEs, or length of hospital stay were noted. No patient in the IHH therapy group experienced a recurring TNE or readmission after discharge; however, this was not statistically significant owing to the small sample size. There were no differences in the rates of ischemic or hemorrhagic complications between groups with or without IHH therapy (P = 0.46 and 0.54, respectively). CONCLUSIONS Induced hypertension and hypervolemia appear safe in HOMMD. There were no significant differences in complication or TNE rates between the groups with or without IHH therapy. While we believe it is important to employ IHH therapy in MMD patients who present with ischemic symptoms, these findings suggest that prophylactic IHH therapy may not be necessary in MMD patients presenting with hemorrhage.
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Affiliation(s)
- Yiping Li
- Department of Neurosurgery and Stanford Stroke Center, Stanford University School of Medicine and Stanford Health Center, Stanford, California, USA
| | - Allan R Wang
- Department of Neurosurgery and Stanford Stroke Center, Stanford University School of Medicine and Stanford Health Center, Stanford, California, USA
| | - Gary K Steinberg
- Department of Neurosurgery and Stanford Stroke Center, Stanford University School of Medicine and Stanford Health Center, Stanford, California, USA.
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Xu J, Zhang Q, Rajah GB, Zhao W, Wu F, Ding Y, Zhang B, Guo W, Yang Q, Xing X, Li S, Ji X. Daily Remote Ischemic Conditioning Can Improve Cerebral Perfusion and Slow Arterial Progression of Adult Moyamoya Disease—A Randomized Controlled Study. Front Neurol 2022; 12:811854. [PMID: 35185755 PMCID: PMC8850829 DOI: 10.3389/fneur.2021.811854] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 12/20/2021] [Indexed: 11/13/2022] Open
Abstract
Background and PurposeMoyamoya disease (MMD) is a complicated cerebrovascular disease with recurrent ischemic or hemorrhagic events. This study aimed to prove the safety and efficacy of remote ischemic conditioning (RIC) on MMD.MethodsIn total, 34 patients with MMD participated in this pilot, prospective randomized controlled study for 1 year. 18 patients were allocated into the RIC group, and 16 patients accepted routine medical treatment only. RIC-related adverse events were recorded. The primary outcome was the improvement ratio of mean cerebral blood flow (mCBF) in middle cerebral artery territory measured by multidelay pseudocontinuous arterial spin labeling, and the secondary outcomes were the cumulative incidence of major adverse cerebrovascular events (MACEs), the prevalence of stenotic-occlusive progression, and periventricular anastomosis at 1-year follow-up.ResultsIn total, 30 of the 34 patients with MMD completed the final follow-up (17 in the RIC group and 13 in the control group). No adverse events of RIC were observed. The mCBF improvement ratio of the RIC group was distinctively higher compared with the control group (mCBF−whole-brain: 0.16 ± 0.15 vs. −0.03 ± 0.13, p = 0.001). Stenotic-occlusive progression occurred in 11.8% hemispheres in the RIC group and 38.5% in the control group (p = 0.021). The incidence of MACE was 5.9% in the RIC group and 30.8% in the control group (hazard ratio with RIC, 0.174; 95% CI, 0.019–1.557; p = 0.118). No statistical difference was documented in the periventricular anastomosis between the two groups after treatment.ConclusionsRemote ischemic conditioning has the potential to be a safe and effective adjunctive therapy for patients with MMD largely due to improving cerebral blood flow and slowing the arterial progression of the stenotic-occlusive lesions. These findings warrant future studies in larger trials.
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Affiliation(s)
- Jiali Xu
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China
- Laboratory of Brain Disorders, Beijing Institute of Brain Disorders, Capital Medical University, Beijing, China
| | - Qian Zhang
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Gary B. Rajah
- Department of Neurosurgery, Wayne State University, Detroit, MI, United States
- Department of Neurosurgery, Munson Medical Center, Traverse City, MI, United States
| | - Wenbo Zhao
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China
- Laboratory of Brain Disorders, Beijing Institute of Brain Disorders, Capital Medical University, Beijing, China
| | - Fang Wu
- Department of Radiology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Yuchuan Ding
- Department of Neurosurgery, Wayne State University, Detroit, MI, United States
| | - Bowei Zhang
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Wenting Guo
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Qi Yang
- Department of Radiology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Xiurong Xing
- Beijing Key Laboratory of Hypoxic Conditioning Translational Medicine, Xuanwu Hospital, Capital Medical University, Beijing, China
- Department of Emergency, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Sijie Li
- Laboratory of Brain Disorders, Beijing Institute of Brain Disorders, Capital Medical University, Beijing, China
- Beijing Key Laboratory of Hypoxic Conditioning Translational Medicine, Xuanwu Hospital, Capital Medical University, Beijing, China
- Department of Emergency, Xuanwu Hospital, Capital Medical University, Beijing, China
- *Correspondence: Sijie Li
| | - Xunming Ji
- Laboratory of Brain Disorders, Beijing Institute of Brain Disorders, Capital Medical University, Beijing, China
- Beijing Key Laboratory of Hypoxic Conditioning Translational Medicine, Xuanwu Hospital, Capital Medical University, Beijing, China
- Xunming Ji
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Xu R, Xie ME, Feghali J, Yang W, Kim J, Lee R, Liew J, Tamargo RJ, Huang J. Revascularization of Hemorrhagic Moyamoya Disease in a North American Cohort: The Role of Timing in Perioperative and Long-Term Outcomes. Neurosurgery 2022; 90:434-440. [DOI: 10.1227/neu.0000000000001850] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 11/03/2021] [Indexed: 01/08/2023] Open
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10
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Yu S, Zhang N, Liu J, Li C, Qian S, Xu Y, Yang T, Li N, Zeng M, Li D, Xia C. Surgical revascularization vs. conservative treatment for adult hemorrhagic moyamoya disease: analysis of rebleeding in 322 consecutive patients. Neurosurg Rev 2021; 45:1709-1720. [PMID: 34859335 DOI: 10.1007/s10143-021-01689-w] [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: 08/04/2021] [Revised: 10/06/2021] [Accepted: 11/04/2021] [Indexed: 11/30/2022]
Abstract
Whether surgical revascularization can prevent recurrent hemorrhage in hemorrhagic moyamoya disease (HMD) patients remains a matter of debate. This study mainly aims at the comparison of treatment effect between surgical revascularization and conservative treatment of adult HMD patients. We retrospectively enrolled 322 adult HMD patients, including 133 in revascularization group and 189 in conservative group. The revascularization group included patients who underwent combined (n = 97) or indirect revascularization alone (n = 36). Ninety-two and forty-one patients underwent unilateral and bilateral revascularization respectively. The modified Rankin scale (mRS) was used to assess the functional status. The comparison was made based on initial treatment paradigm among two categories: (1) revascularization vs. conservative, (2) unilateral vs. bilateral revascularization. The rebleeding rate was significantly lower in revascularization group than that in conservative group (14.3% vs. 27.0%, P = 0.007). As for the functional outcomes, the average mRS was significantly better in revascularization group (1.7 ± 1.5) than that in conservative group (2.8 ± 1.9) (P < 0.001). The death rate in revascularization group was 8.3% (11/133), comparing to 20.1% (38/189) in conservative group (P = 0.004). While comparing between unilateral and bilateral revascularization within the revascularization group, the result demonstrated lower annual rebleeding rate in bilateral group (0.5%/side-year) than that in unilateral group (3.3%/side-year) (P = 0.001). This study proved the better treatment efficacy of surgical revascularization than that of conservative treatment in HMD patients, regarding both in rebleeding rate and mortality rate. Furthermore, bilateral revascularization seems more effective in preventing rebleeding than unilateral revascularization.
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Affiliation(s)
- Shaojie Yu
- Department of Neurosurgery, Anhui Provincial Hospital Affiliated to Anhui Medical University, 17 Lujiang Road, 230036, Hefei, Anhui, People's Republic of China.,Department of Neurosurgery, The First Affiliated Hospital of USTC, Division of Life Science and Medicine, University of Science and Technology of China, Hefei, Anhui, People's Republic of China
| | - Nan Zhang
- Department of Neurosurgery, The First Affiliated Hospital of USTC, Division of Life Science and Medicine, University of Science and Technology of China, Hefei, Anhui, People's Republic of China
| | - Jian Liu
- Department of Neurosurgery, Anhui Provincial Hospital Affiliated to Anhui Medical University, 17 Lujiang Road, 230036, Hefei, Anhui, People's Republic of China.,Department of Neurosurgery, The First Affiliated Hospital of USTC, Division of Life Science and Medicine, University of Science and Technology of China, Hefei, Anhui, People's Republic of China
| | - Changwen Li
- Department of Neurosurgery, Anhui Provincial Hospital Affiliated to Anhui Medical University, 17 Lujiang Road, 230036, Hefei, Anhui, People's Republic of China.,Department of Neurosurgery, The First Affiliated Hospital of USTC, Division of Life Science and Medicine, University of Science and Technology of China, Hefei, Anhui, People's Republic of China
| | - Sheng Qian
- Department of Neurosurgery, Anhui Provincial Hospital Affiliated to Anhui Medical University, 17 Lujiang Road, 230036, Hefei, Anhui, People's Republic of China.,Department of Neurosurgery, The First Affiliated Hospital of USTC, Division of Life Science and Medicine, University of Science and Technology of China, Hefei, Anhui, People's Republic of China
| | - Yong Xu
- Department of Neurosurgery, The First Affiliated Hospital of USTC, Division of Life Science and Medicine, University of Science and Technology of China, Hefei, Anhui, People's Republic of China
| | - Tao Yang
- Department of Neurosurgery, The First Affiliated Hospital of USTC, Division of Life Science and Medicine, University of Science and Technology of China, Hefei, Anhui, People's Republic of China
| | - Nan Li
- Department of Neurosurgery, The First Affiliated Hospital of USTC, Division of Life Science and Medicine, University of Science and Technology of China, Hefei, Anhui, People's Republic of China
| | - Minghui Zeng
- Department of Neurosurgery, The First Affiliated Hospital of USTC, Division of Life Science and Medicine, University of Science and Technology of China, Hefei, Anhui, People's Republic of China
| | - Dongxue Li
- Department of Neurosurgery, The First Affiliated Hospital of USTC, Division of Life Science and Medicine, University of Science and Technology of China, Hefei, Anhui, People's Republic of China
| | - Chengyu Xia
- Department of Neurosurgery, Anhui Provincial Hospital Affiliated to Anhui Medical University, 17 Lujiang Road, 230036, Hefei, Anhui, People's Republic of China. .,Department of Neurosurgery, The First Affiliated Hospital of USTC, Division of Life Science and Medicine, University of Science and Technology of China, Hefei, Anhui, People's Republic of China.
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11
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Clinical Management of Moyamoya Patients. J Clin Med 2021; 10:jcm10163628. [PMID: 34441923 PMCID: PMC8397113 DOI: 10.3390/jcm10163628] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 08/11/2021] [Accepted: 08/13/2021] [Indexed: 01/01/2023] Open
Abstract
Moyamoya angiopathy (MMA) is a peculiar cerebrovascular condition characterized by progressive steno-occlusion of the terminal part of the internal carotid arteries (ICAs) and their proximal branches, associated with the development of a network of fragile collateral vessels at the base of the brain. The diagnosis is essentially made by radiological angiographic techniques. MMA is often idiopathic (moyamoya disease-MMD); conversely, it can be associated with acquired or hereditary conditions (moyamoya Syndrome-MMS); however, the pathophysiology underlying either MMD or MMS has not been fully elucidated to date, and this poor knowledge reflects uncertainties and heterogeneity in patient management. MMD and MMS also have similar clinical expressions, including, above all, ischemic and hemorrhagic strokes, then headaches, seizures, cognitive impairment, and movement disorders. The available treatment strategies are currently shared between idiopathic MMD and MMS, including pharmacological and surgical stroke prevention treatments and symptomatic drugs. No pharmacological treatment able to reverse the progressive disappearance of the ICAs has been found to date in both idiopathic and syndromic cases. Antithrombotic agents are usually prescribed in ischemic MMA, although the coexisting hemorrhagic risk should be considered. Surgical revascularization techniques, which are currently the best available treatment in symptomatic MMA, are associated with good long-term outcomes and reduced ischemic and hemorrhagic risks. Given the lack of dedicated randomized clinical trials, current treatment is mainly based on observational studies and physicians’ and surgeons’ expertise.
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12
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Raper DMS, Rutledge WC, Winkler EA, Meisel K, Callen AL, Cooke DL, Abla AA. Controversies and Advances in Adult Intracranial Bypass Surgery in 2020. Oper Neurosurg (Hagerstown) 2021; 20:1-7. [PMID: 32895706 DOI: 10.1093/ons/opaa276] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 07/11/2020] [Indexed: 02/02/2023] Open
Abstract
Cerebral revascularization utilizing a variety of bypass techniques can provide either flow augmentation or flow replacement in the treatment of a range of intracranial pathologies, including moyamoya disease, intracranial atherosclerotic disease, and complex aneurysms that are not amenable to endovascular or simple surgical techniques. Though once routine, the publication of high-quality prospective evidence, along with the development of flow-diverting stents, has limited the indications for extracranial-to-intracranial (EC-IC) bypass. Nevertheless, advances in imaging, assessment of cerebral hemodynamics, and surgical technique have changed the risk-benefit calculus for EC-IC bypass. New variations of revascularization surgery involving multiple anastomoses, flow preserving solutions, IC-IC constructs, and posterior circulation bypasses have been pioneered for otherwise difficult to treat pathology including giant aneurysms, dolichoectasia, and medically refractory intracranial atherosclerosis. This review provides a practical update on recent advances in adult intracranial bypass surgery.
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Affiliation(s)
- Daniel M S Raper
- Department of Neurological Surgery, University of California, San Francisco, California
| | - W Caleb Rutledge
- Department of Neurological Surgery, University of California, San Francisco, California
| | - Ethan A Winkler
- Department of Neurological Surgery, University of California, San Francisco, California
| | - Karl Meisel
- Department of Neurology, University of California, San Francisco, California
| | - Andrew L Callen
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, California
| | - Daniel L Cooke
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, California
| | - Adib A Abla
- Department of Neurological Surgery, University of California, San Francisco, California
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13
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Delayed Anastomotic Occlusion after Direct Revascularization in Adult Hemorrhagic Moyamoya Disease. Brain Sci 2021; 11:brainsci11050536. [PMID: 33923268 PMCID: PMC8145476 DOI: 10.3390/brainsci11050536] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 04/18/2021] [Accepted: 04/22/2021] [Indexed: 11/16/2022] Open
Abstract
Delayed anastomotic occlusion occurred in a considerable proportion of hemorrhagic moyamoya disease (MMD) patients undergoing direct revascularization. This study aimed to investigate the predictors and outcomes of delayed anastomotic occlusion in adult hemorrhagic MMD. The authors retrospectively reviewed 87 adult hemorrhagic MMD patients. Univariate and multivariate logistic regression analyses were performed. After an average of 9.1 ± 6.9 months of angiographic follow-up, the long-term graft patency rates were 79.8%. The occluded group had significantly worse angiogenesis than the non-occluded group (p < 0.001). However, the improvement of dilated anterior choroidal artery–posterior communicating artery was similar (p = 0.090). After an average of 4.0 ± 2.5 years of clinical follow-up, the neurological statues and postoperative annualized rupture risk were similar between the occluded and non-occluded groups (p = 0.750; p = 0.679; respectively). In the multivariate logistic regression analysis, collateral circulation Grade III (OR, 4.772; 95% CI, 1.184–19.230; p = 0.028) and preoperative computed tomography perfusion (CTP) Grade I–II (OR, 4.129; 95% CI, 1.294–13.175; p = 0.017) were independent predictors of delayed anastomotic occlusion. Delayed anastomotic occlusion in adult hemorrhagic MMD might be a benign phenomenon. Good collateral circulation (Grade III) and compensable preoperative intracranial perfusion (CTP Grade I–II) are independent predictors for this phenomenon. Moreover, the delayed anastomotic occlusion has no significant correlations with the long-term angiographic and neurological outcomes, except neoangiogenesis.
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14
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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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15
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Li Y, Esene I, Mandel M, Bigder M, Steinberg GK. Incidental De Novo Cerebral Microhemorrhages are Predictive of Future Symptomatic Macrohemorrhages After Surgical Revascularization in Moyamoya Disease. Neurosurgery 2020; 88:74-81. [PMID: 32717035 DOI: 10.1093/neuros/nyaa319] [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: 12/18/2019] [Accepted: 05/24/2020] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Patients with moyamoya disease who develop incidental cerebral microhemorrhages (CMHs) on magnetic resonance imaging (MRI) have higher risk of developing subsequent symptomatic repeat macro hemorrhages. OBJECTIVE To evaluate the effect of surgical revascularization on development of de novo CMHs and assess its correlation with repeat hemorrhage rates and functional outcome in hemorrhagic onset moyamoya disease (HOMMD). METHODS We retrospectively reviewed a prospectively managed departmental database of all patients presenting with HOMMD treated between 1987 and 2019. The search yielded 121 patients with adequate MRI follow-up for inclusion into the study. RESULTS In total, 42 preoperative CMHs were identified in 18 patients (15%). Patients presenting with preoperative CMH were more likely to develop de novo CMH after surgical revascularization. 7 de novo CHMs were identified in 6 patients (5%) on routine postoperative MRI at distinct locations from previous sites of hemorrhage or CMH. Symptomatic repeat macro hemorrhage was confirmed radiographically in 15 patients (12%). A total 5 (83%) of 6 patients with de novo CMHs later suffered symptomatic repeat macro hemorrhage with 4 of 5 (80%) hemorrhages occurring at sites of previous CMH. On univariate and multivariate analysis, de novo CMHs was the only significant variable predictive for developing repeat symptomatic hemorrhage. Development of delayed repeat symptomatic hemorrhage was prognostic for higher modified Rankin Score and therefore poorer functional status, whereas preoperative functional status was predictive of final outcome. CONCLUSION De novo CMHs after surgical revascularization might serve as a radiographic biomarker for refractory disease and suggest patients are at risk for future symptomatic macro hemorrhage.
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Affiliation(s)
- Yiping Li
- Stanford Stroke Center, Department of Neurosurgery, Stanford University School of Medicine, Stanford, California
| | - Ignatius Esene
- Stanford Stroke Center, Department of Neurosurgery, Stanford University School of Medicine, Stanford, California
| | - Mauricio Mandel
- Stanford Stroke Center, Department of Neurosurgery, Stanford University School of Medicine, Stanford, California
| | - Mark Bigder
- Stanford Stroke Center, Department of Neurosurgery, Stanford University School of Medicine, Stanford, California
| | - Gary K Steinberg
- Stanford Stroke Center, Department of Neurosurgery, Stanford University School of Medicine, Stanford, California
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16
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Zhang Q, Zhao M, Ge P, Liu X, Wang R, Zhang Y, Zhang D, Zhao J. Hemorrhagic patterns and their risk factors in patients with moyamoya disease. Eur J Neurol 2020; 27:2499-2507. [PMID: 32794313 DOI: 10.1111/ene.14477] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Accepted: 08/10/2020] [Indexed: 11/29/2022]
Abstract
BACKGROUND AND PURPOSE The aim was to describe the profiles of hemorrhagic patterns of moyamoya disease (MMD) and analyze the risk factors in a large population. METHODS A total of 335 conservatively managed MMD patients with hemorrhage in our hospital were included in this cross-sectional study. The correlation between clinical and angiographic characteristics and hemorrhagic patterns (anterior or posterior hemorrhage) was assessed in the hemorrhagic hemisphere by univariate and multivariate logistic regression models. In addition, stratified analysis was performed. RESULTS The 335 hemorrhagic hemispheres (patients) comprised 179 (53.4%) anterior and 156 (46.6%) posterior hemorrhages. For all cases, age at onset [odds ratio (OR) 0.98; 95% confidence interval (CI) 0.96-1.00; P = 0.048] and choroidal anastomosis (OR 1.87; 95% CI 1.19-2.94; P = 0.007) were found by multivariate regression analysis to be negatively and positively associated with a significantly increased risk of posterior hemorrhage, respectively. After stratified analysis, hypertension (OR 0.37; 95% CI 0.14-0.97; P = 0.043) was identified by multivariate regression analysis as a risk factor for anterior hemorrhage in patients without dilation of choroidal anastomosis. On the other hand, choroidal anastomosis (OR 2.62; 95% CI 1.02-6.72; P = 0.045) and involvement of the posterior cerebral artery (OR 3.39; 95% CI 1.20-9.63; P = 0.022) were associated with significantly increased risk of posterior hemorrhage in children and young adults (<30 years of age). CONCLUSIONS A dynamic change in hemorrhagic patterns in MMD patients with increasing age at onset was observed. Choroidal anastomosis is a predictor of posterior hemorrhage. Hypertension is a risk factor for anterior hemorrhage in patients without extreme dilation of choroidal anastomosis.
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Affiliation(s)
- Q 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.,Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, Beijing, China
| | - M 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.,Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, Beijing, China
| | - P Ge
- 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.,Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, Beijing, China
| | - X Liu
- 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.,Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, Beijing, China
| | - R 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.,Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, Beijing, China
| | - Y 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.,Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, Beijing, China
| | - D 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.,Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, Beijing, China
| | - J 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.,Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, Beijing, China
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