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Silva AHD, James G. Natural history and clinical manifestation of Pediatric Brain Arteriovenous Malformations. J Korean Neurosurg Soc 2024; 67:280-288. [PMID: 38720544 PMCID: PMC11079564 DOI: 10.3340/jkns.2024.0037] [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] [Received: 02/14/2024] [Revised: 04/04/2024] [Accepted: 04/16/2024] [Indexed: 05/12/2024] Open
Abstract
Brain arteriovenous malformations (bAVMs) are aberrant arteriovenous shunts through a vascular nidus with no intervening capillary beds. They are one of the commonest causes of spontaneous intracranial haemorrhage in children and may be associated with significant morbidity and mortality in cases of rupture. Treatment strategies include microsurgical resection, endovascular embolisation, stereotactic radiosurgery, multimodality treatment with a combination thereof, and particularly in high-grade bAVMs, conservative management. Clinicians involved in treating bAVMs need to have familiarity with the natural history pertaining to bAVMs in terms of risk of rupture, risk factors elevating rupture risk as well as understanding the clinical manifestations of bAVMs. This invited review serves to provide a synthesis on natural history and clinical presentation of bAVMs with particular focus in children to inform decision-making pertaining to management.
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Affiliation(s)
- 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
| | - 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
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2
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Han H, Chen Y, Ma L, Li R, Li Z, Zhang H, Yuan K, Wang K, Jin H, Meng X, Yan D, Zhao Y, Zhang Y, Jin W, Li R, Lin F, Hao Q, Wang H, Ye X, Kang S, Gao D, Sun S, Liu A, Li Y, Chen X, Zhao Y, Wang S. Comparison of conservative management, microsurgery only, and microsurgery with preoperative embolization for unruptured arteriovenous malformations: A propensity score weighted prospective cohort study. CNS Neurosci Ther 2024; 30:e14533. [PMID: 37990420 PMCID: PMC11017441 DOI: 10.1111/cns.14533] [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: 06/01/2023] [Revised: 11/02/2023] [Accepted: 11/07/2023] [Indexed: 11/23/2023] Open
Abstract
AIMS To compare the efficacy and deficiency of conservative management (CM), microsurgery (MS) only, and microsurgery with preoperative embolization (E + MS) for unruptured arteriovenous malformations (AVMs). METHODS We prospectively included unruptured AVMs undergoing CM, MS, and E + MS from our institution between August 2011 and August 2021. The primary outcomes were long-term neurofunctional outcomes and hemorrhagic stroke and death. In addition to the comparisons among CM, MS, and E + MS, E + MS was divided into single-staged hybrid and multi-staged E + MS for further analysis. Stabilized inverse probability of treatment weighting using propensity scores was applied to control for confounders by treatment indication across the three groups. RESULTS Of 3758 consecutive AVMs admitted, 718 patients were included finally (266 CM, 364 MS, and 88 E + MS). The median follow-up duration was 5.4 years. Compared with CM, interventions (MS and E + MS) were associated with neurological deterioration. MS could lower the risk of hemorrhagic stroke and death. Multi-staged E + MS was associated with neurological deterioration and higher hemorrhagic risks compared with MS, but the hybrid E + MS operation significantly reduced the hemorrhage risk. CONCLUSION In this study, unruptured AVMs receiving CM would expect better neurofunctional outcomes but bear higher risks of hemorrhage than MS or E + MS. The single-staged hybrid E + MS might be promising in reducing inter-procedural and subsequent hemorrhage.
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Affiliation(s)
- Heze Han
- Department of Neurosurgery, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
- China National Clinical Research Center for Neurological DiseasesBeijingChina
| | - Yu Chen
- Department of Neurosurgery, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
- China National Clinical Research Center for Neurological DiseasesBeijingChina
| | - Li Ma
- Department of Neurosurgery, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
- China National Clinical Research Center for Neurological DiseasesBeijingChina
| | - Ruinan Li
- Department of Neurosurgery, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
- China National Clinical Research Center for Neurological DiseasesBeijingChina
| | - Zhipeng Li
- Department of Neurosurgery, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
- China National Clinical Research Center for Neurological DiseasesBeijingChina
| | - Haibin Zhang
- Department of Neurosurgery, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
- China National Clinical Research Center for Neurological DiseasesBeijingChina
| | - Kexin Yuan
- Department of Neurosurgery, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
- China National Clinical Research Center for Neurological DiseasesBeijingChina
| | - Ke Wang
- Department of Neurosurgery, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
- China National Clinical Research Center for Neurological DiseasesBeijingChina
| | - Hengwei Jin
- Department of Interventional Neuroradiology, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
| | - Xiangyu Meng
- Department of Neurosurgery, The First Hospital of Hebei Medical UniversityHebei Medical UniversityShijiazhuangChina
| | - Debin Yan
- Department of NeurosurgeryShanxi Provincial People's HospitalTaiyuanShanxiChina
| | - Yang Zhao
- Department of Neurosurgery, Peking University International HospitalPeking UniversityBeijingChina
| | - Yukun Zhang
- Department of Neurosurgery, Peking University International HospitalPeking UniversityBeijingChina
| | - Weitao Jin
- Department of Neurosurgery, Peking University International HospitalPeking UniversityBeijingChina
| | - Runting Li
- Department of Neurosurgery, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
- China National Clinical Research Center for Neurological DiseasesBeijingChina
| | - Fa Lin
- Department of Neurosurgery, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
- China National Clinical Research Center for Neurological DiseasesBeijingChina
| | - Qiang Hao
- Department of Neurosurgery, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
- China National Clinical Research Center for Neurological DiseasesBeijingChina
| | - Hao Wang
- Department of Neurosurgery, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
- China National Clinical Research Center for Neurological DiseasesBeijingChina
| | - Xun Ye
- Department of Neurosurgery, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
- China National Clinical Research Center for Neurological DiseasesBeijingChina
| | - Shuai Kang
- Department of Neurosurgery, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
- China National Clinical Research Center for Neurological DiseasesBeijingChina
| | - Dezhi Gao
- Department of Gamma‐Knife Center, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
| | - Shibin Sun
- Department of Gamma‐Knife Center, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
| | - Ali Liu
- Department of Gamma‐Knife Center, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
| | - Youxiang Li
- Department of Interventional Neuroradiology, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
| | - Xiaolin Chen
- Department of Neurosurgery, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
- China National Clinical Research Center for Neurological DiseasesBeijingChina
| | - Yuanli Zhao
- Department of Neurosurgery, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
- China National Clinical Research Center for Neurological DiseasesBeijingChina
| | - Shuo Wang
- Department of Neurosurgery, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
- China National Clinical Research Center for Neurological DiseasesBeijingChina
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Astudillo Potes MD, Bauman MMJ, Shoushtari A, Winter BM, Singh R, Rahmani R, Catapano J, Lawton MT. Elucidating the pathogenesis behind arteriovenous malformations of the central nervous system: a bibliometric analysis. Neurosurg Rev 2024; 47:133. [PMID: 38556597 DOI: 10.1007/s10143-024-02367-3] [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: 11/18/2023] [Revised: 02/20/2024] [Accepted: 03/20/2024] [Indexed: 04/02/2024]
Abstract
Arteriovenous malformations (AVMs) are vascular malformations of the central nervous system (CNS) with potential for significant consequences. The exact pathophysiologic mechanism of AVM formation is not fully understood. This study aims to evaluate bibliometric parameters and citations of the literature of AVMs to provide an overview of how the field has evolved. We performed an electronic search on Web of Science to identify the top 100 published and indexed articles with the highest number of citations discussing the pathogenesis of AVMs. This study yielded 1863 articles, of which the top 100 were selected based on the highest total citation count. These articles included 24% basic science, 46% clinical, and 30% review articles. The most-cited article was a clinical article from 2003, and the most recent was published in 2022. The median number of authors was 6, with the highest being 46 for a clinical article. The top 5 journals were identified, with the highest impact factor being 20.1. 13 countries were identified, with the US contributing the most articles (approximately 70%). Regarding genes of investigation, VEGF was one of the early genes investigated, while more interested in RAS/MAPK has been garnered since 2015. There is a growing interest in AVM genomics and pathogenesis research. While progress has been made in understanding clinical aspects and risk factors, the exact pathophysiological mechanisms and genetic basis of AVM formation remain incompletely understood. Further investigation of key genes in AVM pathogenesis can allow identification of potential therapeutic targets.
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Affiliation(s)
- Maria D Astudillo Potes
- Mayo Clinic Alix School of Medicine, Rochester, Minnesota, USA
- Department of Neurological Surgery, Rochester, Minnesota, USA
- Mayo Clinic Graduate School of Biomedical Sciences, Rochester, Minnesota, USA
| | - Megan M J Bauman
- Mayo Clinic Alix School of Medicine, Rochester, Minnesota, USA
- Department of Neurological Surgery, Rochester, Minnesota, USA
| | - Ali Shoushtari
- Department of Neurological Surgery, Rochester, Minnesota, USA
| | - Bailey M Winter
- Mayo Clinic Alix School of Medicine, Rochester, Minnesota, USA
- Department of Neurological Surgery, Rochester, Minnesota, USA
- Mayo Clinic Graduate School of Biomedical Sciences, Rochester, Minnesota, USA
| | - Rohin Singh
- Department of Neurosurgery, University of Rochester, Rochester, NY, USA.
| | - Redi Rahmani
- Department of Neurosurgery, University of Rochester, Rochester, NY, USA
- Barrow Neurological Institute, Phoenix, AZ, USA
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Lai LT. Is it time to rethink how we train open cerebrovascular surgery? J Clin Neurosci 2024; 119:149-150. [PMID: 38043177 DOI: 10.1016/j.jocn.2023.11.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2023]
Affiliation(s)
- Leon T Lai
- Department of Neurosurgery, Monash Health, Melbourne, Australia; Department of Surgery, Monash University, Melbourne, Australia.
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Maalim AA, Zhu M, Shu K, Wu Y, Zhang S, Ye F, Zeng Y, Huang Y, Lei T. Microsurgical Treatment of Arteriovenous Malformations: A Single-Center Study Experience. Brain Sci 2023; 13:1183. [PMID: 37626539 PMCID: PMC10452609 DOI: 10.3390/brainsci13081183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 07/28/2023] [Accepted: 08/01/2023] [Indexed: 08/27/2023] Open
Abstract
OBJECTIVE The purpose of the study was to assess the functional outcomes after microsurgical resection of arteriovenous malformations (AVMs) and to compare the results between patients eligible for A Randomized Trial of Unruptured Brain Arteriovenous Malformations in this surgical series to the results reported and the ARUBA study. METHODS We reviewed the records of 169 patients who underwent microsurgical treatment of arteriovenous malformation (AVMs) in our institution between January 2016 and December 2021. These patients' functional status was assessed using modified Rankin Scale (mRS) scores at the last follow-up and before treatment. The mRS scores at the latest follow-up were classified into good outcomes (mRS < 3) and poor outcomes (mRS ≥ 3). Clinical presentation, patients' demographics, AVM characteristics, follow-up time, and obliteration rate were analyzed. Subgroup analyses were performed on the whole cohort, comparing Spetzler-Martin Grade I and Grade II, and ARUBA-eligible AVMs. RESULTS The initial hemorrhagic presentation occurred in 71 (42%) out of 169 patients. The majority of the patients presented with headaches (73%). The AVMs were completely obliterated in 166 (98.2%) patients. The series included 65 Spetzler-Martin Grade I (38.5%), 46 Grade II (27.2%), 32 Grade III (18.9%), 22 Grade IV (13%), and 4 Grade V (2.4%) AVMs. There were 98 unruptured and 79 ARUBA-eligible cases. Also, optimal functional outcome was achieved in 145 (85.8%) patients. The overall mortality rate was 5.3% (9/169). The multivariate analysis illustrated that a poor outcome was significantly associated with presurgical mRS ≥3 (p < 0.013; OR, 0.206; 95% CI 0.059-0.713), increasing age (p < 0.045; odds ratio [OR], 1.022; 95% CI 1.000-0.045), and female gender (p < 0.009; OR, 2.991; 95% CI 1.309-6.832). CONCLUSIONS Our study suggests that better outcomes can be obtained using microsurgical resection in the majority of patients with AVMs. Independent predictors of poor outcomes after surgical resection of AVMs include increasing age at the time of surgery, poor presurgical functional status, and female gender. Supposing that patients are more suitable for microsurgery after presurgical examination, outcomes are normally better in that case than those achieved by multimodal interventions (such as conservative treatment or ARUBA treatment arm). Therefore, we recommend early surgical removal on all surgically accessible AVMs to prevent successive hemorrhages and the consequences of poor neurological outcomes.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Ting Lei
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; (A.A.M.); (M.Z.); (K.S.); (Y.W.); (S.Z.); (F.Y.); (Y.Z.); (Y.H.)
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6
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Li CR, Shen CC, Yang MY, Tsuei YS, Lee CH. Intraoperative Augmented Reality in Microsurgery for Intracranial Arteriovenous Malformation: A Case Report and Literature Review. Brain Sci 2023; 13:brainsci13040653. [PMID: 37190618 DOI: 10.3390/brainsci13040653] [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: 03/20/2023] [Revised: 04/03/2023] [Accepted: 04/12/2023] [Indexed: 05/17/2023] Open
Abstract
BACKGROUND Intracranial arteriovenous malformations (AVMs) are lesions containing complex vessels with a lack of buffering capillary architecture which might result in hemorrhagic cerebrovascular accidents (CVAs). Intraoperative navigation can improve resection rates and functional preservation in patients with lesions in eloquent areas, but current systems have limitations that can distract the operator. Augmented Reality (AR) surgical technology can reduce these distractions and provide real-time information regarding vascular morphology and location. METHODS In this case report, an adult patient was admitted to the emergency department after a fall, and diagnostic imaging revealed a Spetzler-Martin grade I AVM in the right parietal region with evidence of rupture. The patient underwent a stereotactic microsurgical resection with assistance from augmented reality technology, which allowed for a hologram of the angioarchitecture to be projected onto the cortical surface, aiding in the recognition of the angiographic anatomy during surgery. RESULTS The patient's postoperative recovery went smoothly. At 6-month follow-up, the patient had remained in stable condition, experiencing complete relief from his previous symptoms. The follow-up examination also revealed complete obliteration of the AVMs without any remaining pathological vascular structure. CONCLUSIONS AR-assisted microsurgery makes both the dissection and resection steps safer and more delicate. As several innovations are occurring in AR technology today, it is likely that this novel technique will be increasingly adopted in both surgical applications and education. Although certain limitations exist, this technique may still become more efficient and precise as this novel technology its continues to develop further.
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Affiliation(s)
- Chi-Ruei Li
- Department of Neurosurgery, Neurological Institute, Taichung Veterans General Hospital, Taichung 40705, Taiwan
| | - Chiung-Chyi Shen
- Department of Neurosurgery, Neurological Institute, Taichung Veterans General Hospital, Taichung 40705, Taiwan
| | - Meng-Yin Yang
- Department of Neurosurgery, Neurological Institute, Taichung Veterans General Hospital, Taichung 40705, Taiwan
| | - Yuang-Seng Tsuei
- Department of Neurosurgery, Neurological Institute, Taichung Veterans General Hospital, Taichung 40705, Taiwan
| | - Chung-Hsin Lee
- Department of Neurosurgery, Neurological Institute, Taichung Veterans General Hospital, Taichung 40705, Taiwan
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Netliukh A, Kobyletskyi O, Salo V, Prokopenko N, Sukhanov A. A complex approach to the treatment of arteriovenous IV-V degree malformations according to Spetzler‒Martin scale. Clinical case. UKRAINIAN INTERVENTIONAL NEURORADIOLOGY AND SURGERY 2023. [DOI: 10.26683/2786-4855-2022-3(41)-46-58] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
Four therapeutic approaches have been developed for the treatment of arteriovenous malformations (AVMs): microsurgery, radiosurgery, embolization, and conservative treatment. The lack of consensus regarding the choice of treatment method and the different specializations of the doctor who are onvolved to the patient with AVM often determine the wrong treatment strategy. We performed a prospective analysis of the results of AVM of the IV degree according to Spetzler‒Martin scale, 4–5 points on the Buffalo scale complex treatment, based on clinical and tomographic data after the use of partial endovascular embolization and radical microsurgical removal of the AVM node assisted by cell saving technology. According to cerebral angiography 4 months follow-up there is no visible AVM vessels, the malformation was completely resected.Treatment of large and giant AVMs (IV and V degrees according to the Spetzler‒Martin scale) requires tailored surgical treatment approache using endovascular, microsurgical and radiosurgical techniques, but in many cases without achieving a radical result. The use of cell saver technology is necessary to reduce the risks of intraoperative complications associated with blood loss during microsurgical intervention, and enables radical removal of the AVM and recovery of the patient. The role of cell saver technology is crucial in vascular microsurgical interventions, which are often accompanied by a significant volume of blood loss, ensuring rapid autologous hemotransfusion and restoration of circulating blood volume. Endovascular embolization is a necessary step to reduce the risks of intraoperative complications during microsurgical intervention, which, together with the use of cell saver technology, makes it possible to achieve radical AVM removal and patient recovery.
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Muacevic A, Adler JR. Management of Brain Arteriovenous Malformations: A Review. Cureus 2023; 15:e34053. [PMID: 36824547 PMCID: PMC9942537 DOI: 10.7759/cureus.34053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/22/2023] [Indexed: 01/23/2023] Open
Abstract
Brain arteriovenous malformations (bAVM) are vascular malformations of the brain affecting all ages. The optimum management strategy is essentially devoid of high-quality evidence and is highly nuanced and embedded in local customs. This study summarizes the frequently employed management strategies, drawing conclusions on the utility of each method of treatment and delving into controversies surrounding them. A literature search on PubMed and Medline was done on January 3rd, 2022. 11,767 articles were found, and abstracts were reviewed. Full-text review of 153 articles led to chapters from three books and 71 articles incorporated into a summative discussion. Spetzler-Ponce (S-P) Class A patients may be offered surgery if they are good surgical candidates and have a good number of high-quality years of life left. The exception is diffuse Spetzler-Martin (S-M) grade 2 in a patient older than 40 years: radiosurgery for unruptured and embolization for ruptured. S-P Class B may be offered surgery if a compact nidus or if younger than 40 years. If diffuse or age greater than 40, radiosurgery may be preferred if the Pollock-Flickinger score is less than 2.5. For the remainder of S-P Class B, conservative management may be preferred. S-P Class C is generally not treated unless young or those patients with poorly controlled seizures affecting their quality of life are willing to risk permanent neurological deficits. While the quality of studies is generally high, the level of evidence is concerning with only one randomized controlled trial (RCT). Most research output hails from high-income countries, i.e., perhaps not universally applicable to all settings owing to possible genetic, environmental, and resource differences. More research is needed: large volume studies in the pregnant population, validation of scoring systems in pediatric age groups, clinical trials focused on combination multi-staged treatment modalities, and studies originating from the developing world.
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Fang W, Yang Z, Liu Y, Yu J, Sun P, Zhao Z, He Y, Zhang T, Deng J. Peri-procedure efficacy and safety of one-stop hybrid surgery for the treatment of brain arteriovenous malformations: A single-center preliminary experience. Front Neurol 2022; 13:1052882. [PMID: 36408526 PMCID: PMC9671923 DOI: 10.3389/fneur.2022.1052882] [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: 09/24/2022] [Accepted: 10/19/2022] [Indexed: 11/06/2022] Open
Abstract
Background Some deficiencies and shortcomings in treatment strategies of brain arteriovenous malformation (bAVM) remain. It is worth exploring whether the one-stop hybrid surgical platform can play a positive role in the treatment of bAVM. Objective This study investigated short clinical and angiographic results of one-stop hybrid surgery for the treatment of bAVM. Methods All patients with bAVM treated with one-stop hybrid surgery were reviewed from February 2017 to December 2021. Data including demographic information, clinical conditions, characteristics of AVM, procedure details, and clinical and angiographic results were collected. Result In total, 150 cerebral bAVM patients received one-stop hybrid surgery; among them, 122 received surgical resection assisted by intraoperative DSA, and 28 were treated with combination surgical resection and endovascular embolization. Complete angiographic obliteration of the AVM was achieved in 136 patients (90.7%), and procedure-related death and neurological deficit rates were 7.3%. Of all relevant variables, logistic regression analysis showed that the Spetzler & Martin (S&M) score was the only factor related to the cure rate (P < 0.001) and endpoint complication rate (P = 0.007). Conclusions In our preliminary experience, one-stop hybrid surgery for the treatment of brain AVMs achieves a high angiographic total occlusion rate, with acceptable peri-procedure morbidity and mortality. For S&M 4 and 5 lesions, more cases and further study are needed to investigate the effects and safety of hybrid surgery.
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Affiliation(s)
- Wei Fang
- Department of Neurosurgery, Tangdu Hospital, Air Force Medical University, Xi'an, China
| | - Zijian Yang
- Department of Neurosurgery, Tangdu Hospital, Air Force Medical University, Xi'an, China
| | - Yufeng Liu
- Department of Neurosurgery, Tangdu Hospital, Air Force Medical University, Xi'an, China
| | - Jia Yu
- Department of Neurosurgery, Tangdu Hospital, Air Force Medical University, Xi'an, China
| | - Peng Sun
- Department of Neurosurgery, Tangdu Hospital, Air Force Medical University, Xi'an, China
| | - Zhenwei Zhao
- Department of Neurosurgery, Tangdu Hospital, Air Force Medical University, Xi'an, China
| | - Yue He
- Tongji Medical College, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, China
| | - Tao Zhang
- Department of Neurosurgery, Tangdu Hospital, Air Force Medical University, Xi'an, China
- Tao Zhang
| | - Jianping Deng
- Department of Neurosurgery, Tangdu Hospital, Air Force Medical University, Xi'an, China
- *Correspondence: Jianping Deng
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Darsaut TE, Magro E, Bojanowski MW, Chaalala C, Nico L, Bacchus E, Klink R, Iancu D, Weill A, Roy D, Sabatier JF, Cognard C, Januel AC, Pelissou-Guyotat I, Eker O, Roche PH, Graillon T, Brunel H, Proust F, Beaujeux R, Aldea S, Piotin M, Cornu P, Shotar E, Gaberel T, Barbier C, Corre ML, Costalat V, Jecko V, Barreau X, Morandi X, Gauvrit JY, Derrey S, Papagiannaki C, Nguyen TN, Abdalkader M, Tawk RG, Huynh T, Viard G, Gevry G, Gentric JC, Raymond J. Surgical treatment of brain arteriovenous malformations: clinical outcomes of patients included in the registry of a pragmatic randomized trial. J Neurosurg 2022; 138:891-899. [PMID: 36087316 DOI: 10.3171/2022.7.jns22813] [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: 04/07/2022] [Accepted: 07/15/2022] [Indexed: 11/06/2022]
Abstract
OBJECTIVE The Treatment of Brain Arteriovenous Malformations Study (TOBAS) is a pragmatic study that includes 2 randomized trials and registries of treated or conservatively managed patients. The authors report the results of the surgical registry. METHODS TOBAS patients are managed according to an algorithm that combines clinical judgment and randomized allocation. For patients considered for curative treatment, clinicians selected from surgery, endovascular therapy, or radiation therapy as the primary curative method, and whether observation was a reasonable alternative. When surgery was selected and observation was deemed unreasonable, the patient was not included in the randomized controlled trial but placed in the surgical registry. The primary outcome of the trial was mRS score > 2 at 10 years (at last follow-up for the current report). Secondary outcomes include angiographic results, perioperative serious adverse events, and permanent treatment-related complications leading to mRS score > 2. RESULTS From June 2014 to May 2021, 1010 patients were recruited at 30 TOBAS centers. Surgery was selected for 229/512 patients (44%) considered for curative treatment; 77 (34%) were included in the surgery versus observation randomized trial and 152 (66%) were placed in the surgical registry. Surgical registry patients had 124/152 (82%) ruptured and 28/152 (18%) unruptured arteriovenous malformations (AVMs), with the majority categorized as low-grade Spetzler-Martin grade I-II AVM (118/152 [78%]). Thirteen patients were excluded, leaving 139 patients for analysis. Embolization was performed prior to surgery in 78/139 (56%) patients. Surgical angiographic cure was obtained in 123/139 all-grade (89%, 95% CI 82%-93%) and 105/110 low-grade (95%, 95% CI 90%-98%) AVM patients. At the mean follow-up of 18.1 months, 16 patients (12%, 95% CI 7%-18%) had reached the primary safety outcome of mRS score > 2, including 11/16 who had a baseline mRS score ≥ 3 due to previous AVM rupture. Serious adverse events occurred in 29 patients (21%, 95% CI 15%-28%). Permanent treatment-related complications leading to mRS score > 2 occurred in 6/139 patients (4%, 95% CI 2%-9%), 5 (83%) of whom had complications due to preoperative embolization. CONCLUSIONS The surgical treatment of brain AVMs in the TOBAS registry was curative in 88% of patients. The participation of more patients, surgeons, and centers in randomized trials is needed to definitively establish the role of surgery in the treatment of unruptured brain AVMs. Clinical trial registration no.: NCT02098252 (ClinicalTrials.gov).
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Affiliation(s)
- Tim E Darsaut
- 1Division of Neurosurgery, Department of Surgery, University of Alberta Hospital, Mackenzie Health Sciences Centre, Edmonton, Alberta, Canada
| | - Elsa Magro
- 2Department of Neurosurgery, CHU Cavale Blanche, INSERM UMR 1101 LaTIM, Brest, France
| | - Michel W Bojanowski
- 3Department of Surgery, Division of Neurosurgery, University of Montreal Health Centre (CHUM), Montreal, Quebec, Canada
| | - Chiraz Chaalala
- 3Department of Surgery, Division of Neurosurgery, University of Montreal Health Centre (CHUM), Montreal, Quebec, Canada
| | - Lorena Nico
- 4Division of Interventional Neuroradiology, Department of Radiology, CHU Saint-Etienne, North Hospital, Saint-Etienne, France
| | - Emma Bacchus
- 1Division of Neurosurgery, Department of Surgery, University of Alberta Hospital, Mackenzie Health Sciences Centre, Edmonton, Alberta, Canada
| | - Ruby Klink
- 5Research Centre of the University of Montreal Hospital Centre, Interventional Neuroradiology Research Laboratory (NRI), Montreal, Quebec, Canada
| | - Daniela Iancu
- 6Department of Radiology, Service of Neuroradiology, Hospital Centre of the University of Montreal (CHUM), Montreal, Quebec, Canada
| | - Alain Weill
- 6Department of Radiology, Service of Neuroradiology, Hospital Centre of the University of Montreal (CHUM), Montreal, Quebec, Canada
| | - Daniel Roy
- 6Department of Radiology, Service of Neuroradiology, Hospital Centre of the University of Montreal (CHUM), Montreal, Quebec, Canada
| | - Jean-Francois Sabatier
- 7Department of Neurosurgery, Pierre-Paul Riquet Hospital, Toulouse University Hospital, Toulouse, France
| | - Christophe Cognard
- 8Diagnostic and Therapeutic Neuroradiology Department, Pierre-Paul Riquet Hospital, Toulouse University Hospital, Toulouse, France
| | - Anne-Christine Januel
- 8Diagnostic and Therapeutic Neuroradiology Department, Pierre-Paul Riquet Hospital, Toulouse University Hospital, Toulouse, France
| | | | - Omer Eker
- 10Diagnostic and Interventional Neurological Imaging, Pierre Wertheimer Neurological Hospital, Hospices Civils de Lyon, Lyon, France
| | | | - Thomas Graillon
- 12Department of Neurosurgery, Aix Marseille University, INSERM, AP-HM, MMG, UMR1251, Marmara Institute, La Timone Hospital, Marseille, France
| | - Hervé Brunel
- 13Department of Neuroradiology, La Timone Hospital, AP-HM, Marseille, France
| | - Francois Proust
- 14Department of Neurosurgery, Strasbourg University Hospitals, Strasbourg, France
| | - Rémy Beaujeux
- 15Department of Interventional Neuroradiology, University Hospital of Strasbourg, Strasbourg, France
| | | | - Michel Piotin
- 17Interventional Radiology, Adolphe de Rothschild Foundation Hospital, Paris, France
| | | | - Eimad Shotar
- 19Neuroradiology, Mercy Salpetriere Hospital AP-HP, Paris, France
| | | | - Charlotte Barbier
- 21Vascular and Interventional Imaging, CHU Caen Normandie, Caen, France
| | | | | | - Vincent Jecko
- 24Neurosurgery Department A, Pellegrin Hospital Group, CHU Bordeaux, Bordeaux, France
| | - Xavier Barreau
- 25Diagnostic and Therapeutic Neuroradiology Department, Pellegrin Hospital Group, CHU Bordeaux, Bordeaux, France
| | | | - Jean-Yves Gauvrit
- 27Neuroradiology, Pontchaillou Hospital, Rennes University Hospital, Rennes, France
| | | | | | - Thanh N Nguyen
- Departments of30Radiology.,31Neurology, and.,32Neurosurgery, Boston Medical Center, Boston University School of Medicine, Boston, Massachusetts
| | | | | | - Thien Huynh
- 34Radiology, Mayo Clinic, Jacksonville, Florida
| | - Geraldine Viard
- 35Clinical Investigation Center, CHU Brest, Brest, France; and
| | - Guylaine Gevry
- 5Research Centre of the University of Montreal Hospital Centre, Interventional Neuroradiology Research Laboratory (NRI), Montreal, Quebec, Canada
| | - Jean-Christophe Gentric
- 36Department of Interventional Neuroradiology, Cavale Blanche Hospital, Brest University Hospital, Brest, France
| | - Jean Raymond
- 5Research Centre of the University of Montreal Hospital Centre, Interventional Neuroradiology Research Laboratory (NRI), Montreal, Quebec, Canada.,6Department of Radiology, Service of Neuroradiology, Hospital Centre of the University of Montreal (CHUM), Montreal, Quebec, Canada
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11
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Li N, Yan D, Li Z, Chen Y, Ma L, Li R, Han H, Meng X, Jin H, Zhao Y, Chen X, Wang H, Zhao Y. Long-term outcomes of Spetzler-Martin grade IV and V arteriovenous malformations: a single-center experience. Neurosurg Focus 2022; 53:E12. [PMID: 35901717 DOI: 10.3171/2022.4.focus21648] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 04/11/2022] [Indexed: 11/06/2022]
Abstract
OBJECTIVE This study aimed to explore whether intervention can benefit Spetzler-Martin (SM) grade IV-V arteriovenous malformations (AVMs). METHODS Eighty-two patients with SM grade IV-V AVMs were retrospectively reviewed from 2015 to 2018. Patients were divided into two groups: those who received conservative management (22 cases [26.8%]) and intervention (60 cases [73.2%], including 21 cases of microsurgery, 19 embolization, and 20 hybrid surgery). Neurofunctional outcomes were assessed with the modified Rankin Scale (mRS). The primary outcome was long-term neurofunctional status, and the secondary outcomes were short-term neurofunctional status, long-term obliteration rate, seizure control, and risk of subsequent hemorrhage. RESULTS Regarding the primary outcome, after an average of 4.7 years of clinical follow-up, long-term neurofunctional outcomes were similar after conservative management or intervention (absolute difference -0.4 [95% CI -1.5 to 0.7], OR 0.709 [95% CI 0.461-1.090], p = 0.106), whereas intervention had an advantage over conservative management for avoidance of severe disability (defined as mRS score > 3) (1.7% vs 18.2%, absolute difference 16.5% [95% CI -23.6% to 56.6%], OR 0.076 [95% CI 0.008-0.727], p = 0.025). Regarding the secondary outcomes, intervention was conducive to better seizure control (Engel class I-II) (70.0% vs 0.0%, absolute difference 70.0% [95% CI 8.6%-131.4%], p = 0.010) and avoidance of subsequent hemorrhage (1.4% vs 6.0%, absolute difference 4.6% [95% CI -0.4% to 9.6%], p = 0.030). In the subgroup analysis based on different intervention modalities, microsurgery and hybrid surgery achieved higher complete obliteration rates than embolization (p < 0.001), and hybrid surgery resulted in significantly less intraoperative blood loss than microsurgery (p = 0.041). CONCLUSIONS Intervention is reasonable for properly indicated SM grade IV-V AVMs because it provides satisfactory seizure control with decreased risks of severe disability and subsequent hemorrhage than conservative management. Clinical trial registration no.: NCT04572568 (ClinicalTrials.gov).
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Affiliation(s)
- Nan Li
- 1Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing
| | - Debin Yan
- 1Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing
| | - Zhipeng Li
- 1Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing
| | - Yu Chen
- 1Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing
| | - Li Ma
- 1Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing
| | - Ruinan Li
- 1Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing
| | - Heze Han
- 1Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing
| | - Xiangyu Meng
- 2Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing
| | - Hengwei Jin
- 2Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing
| | - Yang Zhao
- 3Department of Neurosurgery, Peking University International Hospital, Peking University, Beijing
| | - Xiaolin Chen
- 1Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing
| | - Hao Wang
- 1Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing.,4China National Clinical Research Center for Neurological Diseases, Beijing; and.,5Beijing Translational Engineering Center for 3D Printer in Clinical Neuroscience, Beijing, China
| | - Yuanli Zhao
- 1Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing.,3Department of Neurosurgery, Peking University International Hospital, Peking University, Beijing.,4China National Clinical Research Center for Neurological Diseases, Beijing; and.,5Beijing Translational Engineering Center for 3D Printer in Clinical Neuroscience, Beijing, China
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12
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Uzunoglu I, Kızmazoglu C, Husemoglu RB, Gurkan G, Uzunoglu C, Atar M, Cakır V, Aydın HE, Sayın M, Yuceer N. Three-Dimensional Printing Assisted Preoperative Surgical Planning for Cerebral Arteriovenous Malformation. J Korean Neurosurg Soc 2021; 64:882-890. [PMID: 34689475 PMCID: PMC8590920 DOI: 10.3340/jkns.2021.0016] [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] [Received: 01/20/2021] [Accepted: 03/19/2021] [Indexed: 11/27/2022] Open
Abstract
Objective The aim of this study to investigate the benefits of patient-based 3-dimensional (3D) cerebral arteriovenous malformation (AVM) models for preoperative surgical planning and education.
Methods Fifteen patients were operated on for AVMs between 2015 and 2019 with patient-based 3D models. Ten patients’ preoperative cranial angiogram screenings were evaluated preoperatively or perioperatively via patient-based 3D models. Two patients needed emergent surgical intervention; their models were solely designed based on their AVMs and used during the operation. However, the other patients who underwent elective surgery had the modeling starting from the skull base. These models were used both preoperatively and perioperatively. The benefits of patients arising from treatment with these models were evaluated via patient files and radiological data.
Results Fifteen patients (10 males and five females) between 16 and 66 years underwent surgery. The mean age of the patients was 40.0±14.72. The most frequent symptom patients observed were headaches. Four patients had intracranial bleeding; the symptom of admission was a loss of consciousness. Two patients (13.3%) belonged to Spetzler-Martin (SM) grade I, four (26.7%) belonged to SM grade II, eight (53.3%) belonged to SM grade III, and one (6.7%) belonged to SM grade IV. The mean operation duration was 3.44±0.47 hours. Three patients (20%) developed transient neurologic deficits postoperatively, whereas three other patients died (20%).
Conclusion Several technological innovations have emerged in recent years to reduce undesired outcomes and support the surgical team. For example, 3D models have been employed in various surgical procedures in the last decade. The routine usage of patient-based 3D models will not only support better surgical planning and practice, but it will also be useful in educating assistants and explaining the situation to the patient as well.
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Affiliation(s)
- Inan Uzunoglu
- Department of Neurosurgery, Katip Celebi Unıversity Ataturk Training and Research Hospital, Izmir, Turkey
| | - Ceren Kızmazoglu
- Department of Neurosurgery, Dokuz Eylül University School of Medicine, Izmir, Turkey
| | | | - Gokhan Gurkan
- Department of Neurosurgery, Katip Celebi Unıversity Ataturk Training and Research Hospital, Izmir, Turkey
| | - Cansu Uzunoglu
- Department of Neurological Intensive Care, Ege University School of Medicine, Izmir, Turkey
| | - Murat Atar
- Department of Neurosurgery, Sultan Abdulhamid Han Training and Research Hospital, Istanbul, Turkey
| | - Volkan Cakır
- Department of Interventional Radiology, Tinaztepe University Galen Hospital, Izmir, Turkey
| | - Hasan Emre Aydın
- Department of Neurosurgery, Dumlupinar University Kutahya Evliya Celebi Training and Research Hospital, Kutahya, Turkey
| | - Murat Sayın
- Department of Neurosurgery, Katip Celebi Unıversity Ataturk Training and Research Hospital, Izmir, Turkey
| | - Nurullah Yuceer
- Department of Neurosurgery, Katip Celebi Unıversity Ataturk Training and Research Hospital, Izmir, Turkey
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13
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O'Donnell JM, Morgan MK, Manuguerra M, Bervini D, Assaad N. Patient functional outcomes and quality of life after surgery for unruptured brain arteriovenous malformation. Acta Neurochir (Wien) 2021; 163:2047-2054. [PMID: 33830340 DOI: 10.1007/s00701-021-04827-x] [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: 11/02/2020] [Accepted: 03/23/2021] [Indexed: 11/25/2022]
Abstract
BACKGROUND Studies have questioned the effectiveness of surgery for the management of unruptured brain arteriovenous malformation (ubAVM). Few studies have examined functional outcomes and quality of life (QOL) prior and 12 months after surgical repair of ubAVM. OBJECTIVE This study examined the effectiveness of surgical management of ubAVM by measuring patients' perceived QOL and their ability to perform everyday activities. METHODS Between 2011 and 2016, patients diagnosed with an unbAVM were assessed using the Quality Metric Short Form 36 (SF36), the DriveSafe component of the off-road driver screening tool DriveSafeDriveAware (DSDA), the modified Barthel Index (mBI) and the modified Rankin Scale (mRS). Reassessments were conducted at the 6-week post-operative follow-up for surgical patients and at 12-month follow-up for surgical and conservatively managed patients. RESULTS Forty-five patients enrolled in the study, of which 35 (78%) had their ubAVM surgically treated. Patients undergoing surgery had a significantly lower ubAVM Spetzler-Ponce Class (SPC). There was no significant difference 12 months after presentation in function or QOL for either the conservative or surgical group. The surgical group had significantly higher QOL of life scores from pre-surgery to 12 months post-surgery (PCS p < 0.01; MCS p = 0.02). Higher SP grade ubAVM was significantly related to poorer function in the surgical group (SP C compared with SP A; p = 0.04, mean difference - 12.4, 95%CI - 24.3 to - 0.4). CONCLUSION Function and QOL are not diminished after surgical treatment of low Spetzler-Ponce Class unruptured brain arteriovenous malformations. QOL is higher 12 months after surgery for ubAVM than for those who do not have treatment for their ubAVM.
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Affiliation(s)
- Joan Margaret O'Donnell
- Department of Clinical Medicine, Macquarie University, Sydney, NSW, 2113, Australia.
- Faculty of Medicine and Health, School of Health Sciences, The University of Sydney, Camperdown, NSW, 2006, Australia.
| | - Michael Kerin Morgan
- Department of Clinical Medicine, Macquarie University, Sydney, NSW, 2113, Australia
| | - Maurizio Manuguerra
- Department of Mathematics and Statistics, Macquarie University, Sydney, NSW, 2113, Australia
| | - David Bervini
- Department of Neurosurgery, Bern University Hospital and University of Bern, Freiburgstrasse, 3010, Bern, Switzerland
| | - Nazih Assaad
- Department of Clinical Medicine, Macquarie University, Sydney, NSW, 2113, Australia
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14
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Kim BS, Yeon JY, Shin HS, Kim JS, Hong SC, Shin HJ, Hwang YS, Lee JI. Gamma Knife Radiosurgery for Incidental, Symptomatic Unruptured, and Ruptured Brain Arteriovenous Malformations. Cerebrovasc Dis 2021; 50:222-230. [PMID: 33652439 DOI: 10.1159/000513280] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Accepted: 11/13/2020] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND This study was performed to investigate clinical characteristics and outcome after gamma knife radiosurgery (GKS) in patients with incidental, symptomatic unruptured, or ruptured arteriovenous malformations (AVMs). METHODS A total of 491 patients with brain AVMs treated with GKS from June 2002 to September 2017 were retrospectively reviewed. All patients were classified into the incidental (n = 105), symptomatic unruptured (n = 216), or ruptured AVM (n = 170) groups. RESULTS The mean age at diagnosis of incidental, symptomatic unruptured, and ruptured AVMs was 40.3, 36.7, and 27.6 years, respectively. The mean nidus volume was 3.9, 5.7, and 2.4 cm3, respectively. Deep venous drainage was identified in 34, 54, and 76% patients, respectively. There were no significant differences in obliteration rates after GKS between the 3 groups (64.8, 61.1, and 65.9%, respectively) after a mean follow-up period of 60.5 months; however, patients with incidental AVM had a significantly lower post-GKS hemorrhage rate than patients with symptomatic unruptured or ruptured AVMs (annual hemorrhage rate of 1.07, 2.87, and 2.69%; p = 0.028 and p = 0.049, respectively). CONCLUSIONS There is a significant difference in clinical and anatomical characteristics between incidental, symptomatic unruptured, and ruptured AVMs. The obliteration rate after GKS is not significantly different between the 3 groups. Meanwhile, an older age at diagnosis and lower hemorrhage rate after GKS in incidental AVMs suggest that they have a more indolent natural course with a lower life-long risk of hemorrhage.
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Affiliation(s)
- Byung Sup Kim
- Department of Neurosurgery, Sanggye Paik Hospital, Inje University College of Medicine, Seoul, Republic of Korea
| | - Je Young Yeon
- Department of Neurosurgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Hyung Shik Shin
- Department of Neurosurgery, Sanggye Paik Hospital, Inje University College of Medicine, Seoul, Republic of Korea
| | - Jong-Soo Kim
- Department of Neurosurgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Seung-Chyul Hong
- Department of Neurosurgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Hyung Jin Shin
- Department of Neurosurgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Yong Soon Hwang
- Department of Neurosurgery, Sanggye Paik Hospital, Inje University College of Medicine, Seoul, Republic of Korea
| | - Jung-Il Lee
- Department of Neurosurgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea,
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15
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Abstract
BACKGROUND AND PURPOSE Brain arteriovenous malformations (AVM) are uncommon vascular lesions with the risk of hemorrhage, epileptic seizures, neurological deficits, and headache. Comparing the risks of the natural history and that of preventive treatment, a recent study has found observation more beneficial than treatment for unruptured AVMs. This study, however, did not consider the long-term impact of carrying a brain AVM on everyday activities. In this study we analyzed the Quality Of Life (QOL) of patients with untreated AVMs, a measure increasingly used in clinical trials to asses this kind of impact. METHODS We enrolled 36 patients with unruptured, untreated brain AVM from our hospital database and measured their QOL retrospectively using the EQ-5D-5L questionnaire. As a control group we used the results of the Research Report, a nationwide study based on the quality of life of 5534 healthy Hungarians in 2002. Due to the low number of cases, statistical analysis could not be made. RESULTS Headache proved to be the most common AVM-related sign in our cohort (40%, n = 17), with a female predominance; neurological deficit was detected in 33% (n = 14), while epileptic seizures occurred in 26% (n = 11), more commonly affecting male subjects. Anxiety and discomfort seemed to be the most prevalent influencing factors on QOL, especially in the youngest age group (18-34 years). Female subjects showed a greater dependence than men in all age groups, though males had a more significant impairment in their usual activities. Older patients were affected more significantly in their self-care and usual activities compared with the younger population. CONCLUSIONS Untreated AVMs have a significant negative impact on patients carrying unruptured brain AVMs, as proved by QOL assessment. Beside neurological deficits, this impact should also be considered in the therapeutic decision.
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16
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Graffeo CS, Sahgal A, De Salles A, Fariselli L, Levivier M, Ma L, Paddick I, Regis JM, Sheehan J, Suh J, Yomo S, Pollock BE. Stereotactic Radiosurgery for Spetzler-Martin Grade I and II Arteriovenous Malformations: International Society of Stereotactic Radiosurgery (ISRS) Practice Guideline. Neurosurgery 2020; 87:442-452. [PMID: 32065836 PMCID: PMC7426190 DOI: 10.1093/neuros/nyaa004] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Accepted: 11/30/2019] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND No guidelines have been published regarding stereotactic radiosurgery (SRS) in the management of Spetzler-Martin grade I and II arteriovenous malformations (AVMs). OBJECTIVE To establish SRS practice guidelines for grade I-II AVMs on the basis of a systematic literature review. METHODS Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA)-compliant search of Medline, Embase, and Scopus, 1986-2018, for publications reporting post-SRS outcomes in ≥10 grade I-II AVMs with a follow-up of ≥24 mo. Primary endpoints were obliteration and hemorrhage; secondary outcomes included Spetzler-Martin parameters, dosimetric variables, and “excellent” outcomes (defined as total obliteration without new post-SRS deficit). RESULTS Of 447 abstracts screened, 8 were included (n = 1, level 2 evidence; n = 7, level 4 evidence), representing 1102 AVMs, of which 836 (76%) were grade II. Obliteration was achieved in 884 (80%) at a median of 37 mo; 66 hemorrhages (6%) occurred during a median follow-up of 68 mo. Total obliteration without hemorrhage was achieved in 78%. Of 836 grade II AVMs, Spetzler-Martin parameters were reported in 680: 377 were eloquent brain and 178 had deep venous drainage, totaling 555/680 (82%) high-risk SRS-treated grade II AVMs. CONCLUSION The literature regarding SRS for grade I-II AVM is low quality, limiting interpretation. Cautiously, we observed that SRS appears to be a safe, effective treatment for grade I-II AVM and may be considered a front-line treatment, particularly for lesions in deep or eloquent locations. Preceding publications may be influenced by selection bias, with favorable AVMs undergoing resection, whereas those at increased risk of complications and nonobliteration are disproportionately referred for SRS.
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Affiliation(s)
| | - Arjun Sahgal
- Department of Radiation Oncology, Sunnybrook Health Sciences Center, University of Toronto, Toronto, Canada
| | - Antonio De Salles
- Department of Neurosurgery, University of California, Los Angeles, Los Angeles, California
| | - Laura Fariselli
- Fondazione IRCCS Istituto Neurologico Carlo Besta Milano, Unità di Radioterapia, Milan, Italy
| | - Marc Levivier
- Neurosurgery Service and Gamma Knife Center, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
| | - Lijun Ma
- Department of Radiation Oncology, University of California San Francisco, San Francisco, California
| | - Ian Paddick
- National Hospital for Neurology and Neurosurgery, London, United Kingdom
| | - Jean Marie Regis
- Department of Functional Neurosurgery, Timone University Hospital, Aix-Marseille University, Marseille, France
| | - Jason Sheehan
- Department of Neurological Surgery, University of Virginia, Charlottesville, Virginia
| | - John Suh
- Department of Radiation Oncology, Taussig Cancer Institute, Cleveland Clinic, Cleveland, Ohio
| | - Shoji Yomo
- Division of Radiation Oncology, Aizawa Comprehensive Cancer Center, Aizawa Hospital, Matsumoto, Japan
| | - Bruce E Pollock
- Department of Neurological Surgery, Mayo Clinic, Rochester, Minnesota.,Department Radiation Oncology, Mayo Clinic, Rochester, Minnesota
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17
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Ruigrok YM. Management of Unruptured Cerebral Aneurysms and Arteriovenous Malformations. Continuum (Minneap Minn) 2020; 26:478-498. [PMID: 32224762 DOI: 10.1212/con.0000000000000835] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
PURPOSE OF REVIEW Unruptured intracranial aneurysms and brain arteriovenous malformations (AVMs) may be detected as incidental findings on cranial imaging. This article provides a practical approach to the management of unruptured intracranial aneurysms and unruptured brain AVMs and reviews the risk of rupture, risk factors for rupture, preventive treatment options with their associated risks, and the approach of treatment versus observation for both types of vascular malformations. RECENT FINDINGS For unruptured intracranial aneurysms, scoring systems on the risk of rupture can help with choosing preventive treatment or observation with follow-up imaging. Although the literature provides detailed information on the complication risks of preventive treatment of unruptured intracranial aneurysms, individualized predictions of these procedural complication risks are not yet available. With observation with imaging, growth of unruptured intracranial aneurysms can be monitored, and prediction scores for growth can help determine the optimal timing of monitoring. The past years have revealed more about the risk of complications of the different treatment modalities for brain AVMs. A randomized clinical trial and prospective follow-up data have shown that preventive interventional therapy in patients with brain AVMs is associated with a higher rate of neurologic morbidity and mortality compared with observation. SUMMARY The risk of hemorrhage from both unruptured intracranial aneurysms and brain AVMs varies depending on the number of risk factors associated with hemorrhage. For both types of vascular malformations, different preventive treatment options are available, and all carry risks of complications. For unruptured intracranial aneurysms, the consideration of preventive treatment versus observation is complex, and several factors should be included in the decision making. Overall, it is recommended that patients with unruptured asymptomatic brain AVMs should be observed.
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18
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Mueller O, Kasper E, Droege F, Goericke S, Stein KP, Sure U. Cerebral Arteriovenous Malformations in Pediatric Patients with Hereditary Hemorrhagic Telangiectasia: Re-evaluating Appearance, Bleeding Risk, and Treatment Necessity in a Selective Meta-analysis. JOURNAL OF PEDIATRIC NEUROLOGY 2020. [DOI: 10.1055/s-0040-1715499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
AbstractPediatric patients suffering from cerebral nidal arteriovenous malformations are a unique population due to the rare occurrence of the disease. Diagnosis of hereditary hemorrhagic telangiectasia (HHT) in children is a rare event and mainly restricted to coincidental detection from screening of possibly afflicted family members. In patients with HHT, it is well known that the incidence of cerebral vascular malformations (CVMs) is higher than expected when compared with the nonafflicted population. Even though CVMs comprise a variety of different distinct anatomical and radiographic entities (e.g., capillary telangiectasia, nidal arteriovenous malformation [AVM], cavernous malformation, dural or pial as well as mixed fistula, and vein of Galen malformation), they are mostly summarized and analyzed all in one category due to the low number of individual cases identified in single centers. Nevertheless, the best treatment algorithm will likely vary significantly between different CVMs as does the clinical presentation and the natural course of the CVM. It is therefore the objective of this article to focus on nidal AVMs in pediatric patients suffering from HHT. To this end, we performed a systematic selective literature research to estimate incidence, clinical and radiological appearance, as well as classification according to established grading system, and to evaluate the necessity of treatment of these lesions in light of their respective outcomes. Our line of arguments explains why we recommend to follow these lesions expectantly and suggest to keep pediatric patients under surveillance with sequential scans until they reach adulthood.
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Affiliation(s)
- Oliver Mueller
- Department of Neurosurgery, University of Essen, Essen, Germany
- Department of Neurosurgery, Dortmund Hospital, Dortmund, Germany
| | - Ekkehard Kasper
- Division of Neurosurgery, Hamilton General Hospital, Hamilton, Canada
| | - Freya Droege
- Department of Oto-Rhino-Laryngology, University of Essen, Essen, Germany
| | - Sophia Goericke
- Institute of Radiology, Neuroradiology and Interventional Radiology, University of Essen, Essen, Germany
| | - Klaus-Peter Stein
- Department of Neurosurgery, University of Essen, Essen, Germany
- Department of Neurosurgery, University Hospital Magdeburg, Magdeburg, Germany
| | - Ulrich Sure
- Department of Neurosurgery, University of Essen, Essen, Germany
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19
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Chen Y, Li R, Ma L, Zhao Y, Yu T, Wang H, Ye X, Wang R, Chen X, Zhao Y. Single-Stage Combined Embolization and Resection for Spetzler-Martin Grade III/IV/V Arteriovenous Malformations: A Single-Center Experience and Literature Review. Front Neurol 2020; 11:570198. [PMID: 33193013 PMCID: PMC7658368 DOI: 10.3389/fneur.2020.570198] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Accepted: 09/08/2020] [Indexed: 12/02/2022] Open
Abstract
Background and Purpose: This study sought to identify the efficacy and intraoperative operational details of single-stage combined embolization and microsurgery strategy for Spetzler-Martin (SM) grade III/IV/V arteriovenous malformations (AVMs). Methods: The authors retrospectively reviewed consecutive SM grade III/IV/V AVMs who underwent hybrid procedures and surgical resection alone procedures from January 2016 to February 2018. Outcomes [modified Rankin Scale (mRS)] were compared between hybrid group and surgical resection alone group in ruptured or unruptured subgroup. Factors associated with long-term disability were assessed using multivariable logistic regression analyses. Results: A total of 100 AVM patients (47 corrected using hybrid procedures whereas 53 by surgical resection alone) were evaluated. After a mean follow-up of 2.3 ± 0.6 years, we found no difference in long-term prognosis and incidences of disability rates between these two strategies. However, the hybrid strategy offers significant advantage in accelerating the resection process [ruptured (P = 0.000); unruptured (P = 0.002)]. In the analysis of risk factors, excessive embolization (Grade C, 60–100%) was significantly associated with long-term disability in the hybrid cohorts (P = 0.041; odds ratio, 24.000; 95% CI, 1.140–505.194), and involvement of deep perforating arteries was the significant predictor of long-term disability in the surgical resection alone cohort (P = 0.025; odds ratio, 15.389; 95% CI, 1.412–167.66). In the subgroup analysis of the hybrid cohort, moderate embolization (Grade B, 30–60%) was recommended because of the low risk ratio of major intraoperative bleeding (P = 0.033). Conclusions: Single-stage combined embolization and resection is an efficient strategy for the treatment of SM grade III/IV/V AVMs. Although the long-term outcomes were similar to surgical resection alone, the hybrid strategy had obvious advantages of shorter resection. In the hybrid technique, moderate embolization was recommended, and excessive embolization might be detrimental to the subsequent microsurgical resection. Clinical Trial Registration:http://www.clinicaltrials.gov. Unique identifier: NCT04136860.
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Affiliation(s)
- Yu Chen
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Ruinan Li
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Li Ma
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.,China National Clinical Research Center for Neurological Diseases, Beijing, China.,Stroke Center, Beijing Institute for Brain Disorders, Beijing, China.,Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, Beijing, China
| | - Yang Zhao
- Department of Neurosurgery, Peking University International Hospital, Peking University, Beijing, China
| | - Tengfei Yu
- Department of Neurosurgery, Peking University International Hospital, Peking University, Beijing, China
| | - Hao Wang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.,China National Clinical Research Center for Neurological Diseases, Beijing, China.,Stroke Center, Beijing Institute for Brain Disorders, Beijing, China.,Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, Beijing, China
| | - Xun Ye
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.,China National Clinical Research Center for Neurological Diseases, Beijing, China.,Stroke Center, Beijing Institute for Brain Disorders, Beijing, China.,Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, Beijing, China.,Department of Neurosurgery, Peking University International Hospital, Peking University, Beijing, China
| | - Rong Wang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.,Stroke Center, Beijing Institute for Brain Disorders, Beijing, China.,Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, Beijing, China.,Department of Neurosurgery, Peking University International Hospital, Peking University, Beijing, China
| | - Xiaolin Chen
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.,China National Clinical Research Center for Neurological Diseases, Beijing, China.,Stroke Center, Beijing Institute for Brain Disorders, Beijing, China.,Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, Beijing, China
| | - Yuanli Zhao
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.,China National Clinical Research Center for Neurological Diseases, Beijing, China.,Stroke Center, Beijing Institute for Brain Disorders, Beijing, China.,Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, Beijing, China.,Department of Neurosurgery, Peking University International Hospital, Peking University, Beijing, China.,Beijing Translational Engineering Enter for 3D Printer in Clinical Neuroscience, Beijing, China
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20
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Chen Y, Meng X, Ma L, Zhao Y, Gu Y, Jin H, Gao D, Li Y, Sun S, Liu A, Zhao Y, Chen X, Wang S. Contemporary management of brain arteriovenous malformations in mainland China: a web-based nationwide questionnaire survey. Chin Neurosurg J 2020; 6:26. [PMID: 32922955 PMCID: PMC7461270 DOI: 10.1186/s41016-020-00206-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Accepted: 07/03/2020] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND In the benefit of the large population and rapid economic growth, the interventional techniques and equipment for brain arteriovenous malformations (bAVMs) in mainland China have been rapidly improved. Chinese neurosurgical cerebrovascular physicians have accumulated rich experience and made pioneering explorations. This study aims to summarize the experience and treatment progress of bAVMs in mainland China. METHODS We performed a web-based nationwide questionnaire survey among 67 tertiary neurosurgical institutions that had acknowledged treating bAVMs in the primary survey. Our questionnaire included clinical characteristics, radiological findings, intervention indications/contraindications, intervention timing, and intraoperative management of different treatment modalities. RESULTS A total of 63 participants from 49 (73.1%) tertiary neurosurgical institutions responded to our questionnaire. Forty-two (66.7%) were neurosurgeons, 13 (20.6%) were neurointerventionists, and 8 (12.7%) were radiosurgeons. Approximately 3500 to 4000 cases of bAVMs were treated annually in these 49 departments. All participants agreed that the conclusions of ARUBA are debatable. Flow-related aneurysms, deep venous drainage, and arteriovenous fistula were considered as common hemorrhagic risk factors. Unruptured SM IV-V bAVMs, giant bAVMs, pediatric bAVMs, elderly bAVMs, and eloquent bAVMs were not absolute contraindications to intervention. Maximum lesion occlusion and minimal functional impairment were the principles of intervention management. Most of the neurosurgeons and neurointerventionists recommended early intervention (< 30 days) for ruptured bAVMs, and the radiosurgeons suggested intervention in the chronic phase or recovery phase (P < 0.01) and preferably 3 months after bleeding. Multi-modality strategies were thought effective for complex bAVMs, and more exploration of individualized intraoperative management was necessary. CONCLUSIONS Intervention was acceptable for specific selected unruptured bAVMs in mainland China, especially in patients with hemorrhagic risk factors. The application of multidisciplinary cerebrovascular team and multicenter large-sample international registry study might be the next work for Chinese neurosurgical cerebrovascular physicians.
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Affiliation(s)
- Yu Chen
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070 China
| | - Xiangyu Meng
- Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Li Ma
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070 China
| | - Yang Zhao
- Department of Neurosurgery, Peking University International Hospital, Peking University, Beijing, China
| | - Ye Gu
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070 China
| | - Hengwei Jin
- Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Dezhi Gao
- Department of Gamma-Knife Center, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Youxiang Li
- Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Shibin Sun
- Department of Gamma-Knife Center, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Ali Liu
- Department of Gamma-Knife Center, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Yuanli Zhao
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070 China
| | - Xiaolin Chen
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070 China
| | - Shuo Wang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070 China
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21
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Niini T, Laakso A, Tanskanen P, Niemelä M, Luostarinen T. Perioperative Treatment of Brain Arteriovenous Malformations Between 2006 and 2014: The Helsinki Protocol. Neurocrit Care 2020; 31:346-356. [PMID: 30767121 PMCID: PMC6757016 DOI: 10.1007/s12028-019-00674-y] [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] [Indexed: 12/03/2022]
Abstract
Objective We reviewed retrospectively the perioperative treatment of microsurgically resected brain arteriovenous malformations (bAVMs) at the neurosurgical department of Helsinki University Hospital between the years 2006 and 2014. We examined the performance of the treatment protocol and the incidence of delayed postoperative hemorrhage (DPH). Methods The Helsinki protocol for postoperative treatment of bAVMs was used for the whole patient cohort of 121. The patients who had subsequent DPH were reviewed in more detail. Results Five out of 121 (4.1%) patients had DPH. These patients had a higher Spetzler–Martin grade (SMG) (p = 0.043) and a more complex venous drainage pattern (p = 0.003) as compared to those who had no postoperative bleed. Patients with DPH had 43% larger intravenous fluid intake in the neurosurgical intensive care unit (p = 0.052); they were all male (p = 0.040) and had longer stay in the intensive care unit (p = 0.022). Conclusions The Helsinki protocol for postoperative treatment of bAVMs was found to produce comparable results to a more complex treatment algorithm. DPH was associated with high SMG, complex venous drainage pattern, male gender and high intravenous fluid intake. Our findings support the use of SMG in defining patient’s postoperative treatment as the DPHs in our study occurred in patients with grade 2–5.
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Affiliation(s)
- Tarmo Niini
- Division of Anesthesiology, Department of Anesthesiology, Intensive Care and Pain Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.
| | - Aki Laakso
- Department of Neurosurgery, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Päivi Tanskanen
- Division of Anesthesiology, Department of Anesthesiology, Intensive Care and Pain Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Mika Niemelä
- Department of Neurosurgery, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Teemu Luostarinen
- Division of Anesthesiology, Department of Anesthesiology, Intensive Care and Pain Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.
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22
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Graffeo CS, Link MJ, Stafford SL, Garces YI, Foote RL, Pollock BE. More II It than Meets the Eye: Outcomes After Single-Fraction Stereotactic Radiosurgery in a Case Series of Low-Grade Arteriovenous Malformations. Oper Neurosurg (Hagerstown) 2020; 18:136-144. [PMID: 31250901 DOI: 10.1093/ons/opz153] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Accepted: 01/21/2019] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Surgical resection is typically cited as the optimal treatment of patients with Spetzler-Martin Grade I-II arteriovenous malformation (AVM). OBJECTIVE To report our experience with single-fraction stereotactic radiosurgery (SRS) for Spetzler-Martin Grade I-II AVM. METHODS A prospectively maintained registry was reviewed for patients with nonsyndromic Spetzler-Martin Grade I-II AVM having SRS from 1990 to 2011. Patients with <24 mo of follow-up or prior radiotherapy/SRS were excluded, resulting in a study population of 173 patients. Actuarial analysis was performed using the Kaplan-Meier method, and Cox proportional hazards modeling was performed with excellent outcomes (obliteration without new deficits) as the dependent variable. RESULTS Median post-SRS follow-up was 68 mo (range, 24-275). AVM obliteration was achieved in 132 (76%) after initial SRS. Eleven additional patients achieved obliteration after repeat SRS for an overall obliteration rate of 83%. The rate of obliteration was 60% at 4 yr and 78% at 8 yr. Post-SRS hemorrhage occurred in 7 patients (4%), resulting in 3 minor deficits (2%) and 1 death (<1%). Radiation-induced complications occurred in 5 patients (3%), resulting in minor deficits only. One hundred and thirty-seven patients (79%) had excellent outcomes at last follow-up. CONCLUSION SRS is a safe and effective treatment for patients with Spetzler-Martin Grade I-II AVM. Selection bias is likely a contributing factor to explain the superior outcomes generally noted in reported series of microsurgery for patients with low grade AVM.
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Affiliation(s)
- Christopher S Graffeo
- Department of Neurological Surgery, Mayo Clinic College of Medicine and Science, Rochester, Minnesota
| | - Michael J Link
- Department of Neurological Surgery, Mayo Clinic College of Medicine and Science, Rochester, Minnesota.,Department of Otorhinolaryngology, Mayo Clinic College of Medicine and Science, Rochester, Minnesota
| | - Scott L Stafford
- Department of Radiation Oncology, Mayo Clinic College of Medicine and Science, Rochester, Minnesota
| | - Yolanda I Garces
- Department of Radiation Oncology, Mayo Clinic College of Medicine and Science, Rochester, Minnesota
| | - Robert L Foote
- Department of Radiation Oncology, Mayo Clinic College of Medicine and Science, Rochester, Minnesota
| | - Bruce E Pollock
- Department of Neurological Surgery, Mayo Clinic College of Medicine and Science, Rochester, Minnesota.,Department of Radiation Oncology, Mayo Clinic College of Medicine and Science, Rochester, Minnesota
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23
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Patel NJ, Bervini D, Eftekhar B, Davidson AS, Walsh DC, Assaad NN, Morgan MK. Results of Surgery for Low-Grade Brain Arteriovenous Malformation Resection by Early Career Neurosurgeons: An Observational Study. Neurosurgery 2020; 84:655-661. [PMID: 29608734 DOI: 10.1093/neuros/nyy088] [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: 09/12/2017] [Accepted: 02/22/2018] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND For sustainability of arteriovenous malformation (AVM) surgery, results from early career cerebrovascular neurosurgeons (ECCNs) must be acceptably safe. OBJECTIVE To determine whether ECCNs performance of Spetzler-Ponce Class A AVM (SPC A) resection can be acceptably safe. METHODS ECCNs completing a cerebrovascular fellowship (2004-2015) with the last author were included. Inclusion of the ECCN cases occurred if they: had a prospective database of all AVM cases since commencing independent practice; were the primary surgeon on SPC A; and had made the significant management decisions. All SPC A surgical cases from the beginning of the ECCN's independent surgical practice to a maximum of 8 yr were included. An adverse outcome was considered a complication of surgery leading to a new permanent neurological deficit with a last modified Rankin Scale score >1. A cumulative summation (Cusum) plot examined the performance of each surgery. The highest acceptable level of adverse outcomes for the Cusum was 3.3%, derived from the upper 95% confidence interval of the last author's reported series. RESULTS Six ECCNs contributed 110 cases for analysis. The median number of SPC A cases operated by each ECCN was 16.5 (range 4-40). Preoperative embolization was performed in 5 (4.5%). The incidence of adverse outcomes was 1.8% (95% confidence interval: <0.01%-6.8%). At no point during the accumulated series did the combined cohort become unacceptable by the Cusum plot. CONCLUSION ECCNs with appropriate training appointed to large-volume cerebrovascular centers can achieve results for surgery for SPC A that are not appreciably worse than those published from high-volume neurosurgeons.
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Affiliation(s)
- Nirav J Patel
- Department of Neurosurgery, Brigham and Women's Hospital, Boston, Massachusetts
| | - David Bervini
- Department of Neurosurgery, University Hospital Inselspital and University of Bern, Bern, Switzerland
| | - Behzad Eftekhar
- Department of Clinical Medicine, Macquarie University, New South Wales, Australia.,Department of Neurosurgery, Nepean Hospital, Kingswood, New South Wales, Australia
| | - Andrew Stewart Davidson
- Department of Clinical Medicine, Macquarie University, New South Wales, Australia.,Department of Neurosurgery, Nepean Hospital, Kingswood, New South Wales, Australia
| | - Daniel C Walsh
- Department of Neurosurgery, Kings College Hospital NHS Foundation Trust, Denmark Hill, London, United Kingdom.,Department of Clinical Neuroscience, Institute of Psychiatry, King's College London, 1st floor, Maurice Wohl Clinical Neuroscience Institute, London, United Kingdom
| | - Nazih N Assaad
- Department of Clinical Medicine, Macquarie University, New South Wales, Australia.,Department of Neurosurgery, Royal North Shore Hospital, St Leonards, New South Wales, Australia
| | - Michael Kerin Morgan
- Department of Clinical Medicine, Macquarie University, New South Wales, Australia
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24
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Kato Y, Dong VH, Chaddad F, Takizawa K, Izumo T, Fukuda H, Hara T, Kikuta K, Nakai Y, Endo T, Kurita H, Xu B, Beneš V, Christian R, Pavesi G, Hodaie M, Sharma RK, Agarwal H, Mohan K, Liew BS. Expert Consensus on the Management of Brain Arteriovenous Malformations. Asian J Neurosurg 2019; 14:1074-1081. [PMID: 31903343 PMCID: PMC6896626 DOI: 10.4103/ajns.ajns_234_19] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Brain arteriovenous malformations (bAVMs) are complex, heterogeneous, and uncommon intracranial lesions. They can be treated by one or a combination of the following treatment modalities, namely embolization, radiosurgery, or microsurgical resection. In Spetzler-Martin Grade 4 and 5 arteriovenous malformations (AVMs), conservative management may be the best option. A group of experts in the management of AVMs of different disciplines gathered in January 2019 in Hanoi to compile the “Expert Consensus on the Management of Brain Arteriovenous Malformations”.
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Affiliation(s)
- Yoko Kato
- Department of Neurosurgery, Fujita Health University Bantane Hospital, Nagoya, Japan
| | - Van He Dong
- Department of Neurosurgery, VietDuc University Hospital, Hoan Kiem, Hanoi, Vietnam
| | - Feres Chaddad
- Department of Neurosurgery, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Katsumi Takizawa
- Department of Neurosurgery, Japanese Red Cross Asahikawa Hospital, Asahikawa, Japan
| | - Tsuyoshi Izumo
- Department of Neurosurgery, Nagasaki University Graduate School of Biomedical Sciences, Sakamoto, Nagasaki, Japan
| | - Hitoshi Fukuda
- Department of Neurosurgery, Kochi University Hospital, Nankoku, Kochi, Japan
| | - Takayuki Hara
- Department of Neurosurgery, Toranomon Hospital, MinatoKu, Tokyo, Japan
| | | | - Yasunobu Nakai
- Department of Neurosurgery, Tsukuba Medical Center Hospital, Tsukuba, Ibaraki, Japan
| | - Toshiki Endo
- Department of Neurosurgery, Graduate School of Medicine, Tohoku University, 1-1 Seiryo Aoba, Sendai, Japan
| | - Hiroki Kurita
- Department of Cerebrovascular Surgery, International Medical Center, Saitama Medical University, Hidaka, Japan
| | - Bin Xu
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, China
| | - Vladimír Beneš
- Department of Neurosurgery and Neurooncology, First Faculty of Medicine, Charles University, Military University Hospital, Prague, Czech Republic
| | - Raftopoulos Christian
- Department of Neurosurgery, Cliniques Universitaires SaintLuc Bruxelles, Brussels, Belgium
| | - Giacomo Pavesi
- Department of Neurosurgery, Sant'Agostino Estense Hospital, Modena, Italy
| | - Mojgan Hodaie
- Department of Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Rajan Kumar Sharma
- Department of Neurosurgery, Bir Hospital, National Academy of Medical Sciences, Kathmandu, Nepal
| | | | - Krishna Mohan
- Department of Neurosurgery, SVIMS, Tirupathi, Andhra Pradesh, India
| | - Boon Seng Liew
- Department of Neurosurgery, Hospital Sungai Buloh, Selangor, Malaysia
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25
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Kim BS, Yeon JY, Kim JS, Hong SC, Shin HJ, Lee JI. Gamma Knife Radiosurgery for ARUBA-Eligible Patients with Unruptured Brain Arteriovenous Malformations. J Korean Med Sci 2019; 34:e232. [PMID: 31538418 PMCID: PMC6753365 DOI: 10.3346/jkms.2019.34.e232] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Accepted: 08/07/2019] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND A randomized trial of unruptured brain arteriovenous malformations (ARUBA) reported superior outcomes in conservative management compared to interventional treatment. There were numerous limitations to the study. This study aimed to investigate the efficacy of gamma knife radiosurgery (GKS) for patients with brain arteriovenous malformations (AVMs) by comparing its outcomes to those of the ARUBA study. METHODS We retrospectively reviewed ARUBA-eligible patients treated with GKS from June 2002 to September 2017 and compared against those in the ARUBA study. AVM obliteration and hemorrhage rates, and clinical outcomes following GKS were also evaluated. RESULTS The ARUBA-eligible cohort comprised 264 patients. The Spetzler-Martin grade was Grade I to II in 52.7% and III to IV in 47.3% of the patients. The mean AVM nidus volume, marginal dose, and follow-up period were 4.8 cm³, 20.8 Gy, and 55.5 months, respectively. AVM obliteration was achieved in 62.1%. The annual hemorrhage rate after GKS was 3.4%. A stroke or death occurred in 14.0%. The overall stroke or death rate of the ARUBA-eligible cohort was significantly lower than that of the interventional arm of the ARUBA study (P < 0.001) and did not significantly differ from that of the medical arm in the ARUBA study (P = 0.601). CONCLUSION GKS was shown to achieve a favorable outcome with low procedure-related morbidity in majority of the ARUBA-eligible patients. The outcome after GKS in our patients was not inferior to that of medical care alone in the ARUBA study. It is suggested that GKS is rather superior to medical care considering the short follow-up duration of the ARUBA study.
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Affiliation(s)
- Byung Sup Kim
- Department of Neurosurgery, Kosin University Gospel Hospital, Kosin University College of Medicine, Busan, Korea
| | - Je Young Yeon
- Department of Neurosurgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Jong Soo Kim
- Department of Neurosurgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Seung Chyul Hong
- Department of Neurosurgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Hyung Jin Shin
- Department of Neurosurgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Jung Il Lee
- Department of Neurosurgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
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26
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Feghali J, Huang J. Updates in arteriovenous malformation management: the post-ARUBA era. Stroke Vasc Neurol 2019; 5:34-39. [PMID: 32411406 PMCID: PMC7213498 DOI: 10.1136/svn-2019-000248] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Revised: 05/31/2019] [Accepted: 09/03/2019] [Indexed: 11/04/2022] Open
Abstract
Brain arteriovenous malformations (AVMs) are complex and heterogeneous lesions that can rupture, causing significant morbidity and mortality. While ruptured lesions are usually treated, the management of unruptured AVMs remains unclear. A Randomized trial of Unruptured Brain Arteriovenous Malformations (ARUBA) was the first trial conducted to compare the effects of medical and interventional therapy. Although it concluded that medical therapy was superior in preventing stroke and death over a follow-up period of 33 months, the findings were met with intense criticism regarding several aspects of study design, progression, and analysis/conclusion. Namely, the increased use of stand-alone embolisation relative to microsurgery in a cohort with predominantly low-grade lesions combined with a short follow-up period amplified treatment risk. Subsequently, several observational studies were conducted on ARUBA-eligible patients to investigate the safety and efficacy of microsurgery, radiosurgery, and endovascular embolisation over longer follow-up periods. These reports showed that favourable safety profiles and cure rates can be achieved with appropriate patient selection and judicious use of different treatment modalities in multidisciplinary centres. Since large prospective randomised trials on AVMs may not be feasible, it is important to make use of practice-based data beyond the flawed ARUBA study to optimise patients' lifetime outcomes.
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Affiliation(s)
- James Feghali
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Judy Huang
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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27
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Ding D, Chen CJ, Starke RM, Kano H, Lee JY, Mathieu D, Feliciano C, Rodriguez-Mercado R, Almodovar L, Grills IS, Kondziolka D, Barnett GH, Lunsford LD, Sheehan JP. Risk of Brain Arteriovenous Malformation Hemorrhage Before and After Stereotactic Radiosurgery. Stroke 2019; 50:1384-1391. [DOI: 10.1161/strokeaha.118.024230] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Dale Ding
- From the Department of Neurosurgery, University of Louisville, KY (D.D.)
| | - Ching-Jen Chen
- From the Department of Neurosurgery, University of Louisville, KY (D.D.)
| | - Robert M. Starke
- Department of Neurological Surgery, University of Miami, FL (R.M.S.)
| | - Hideyuki Kano
- Department of Neurological Surgery, University of Pittsburgh, PA (H.K., L.D.L.)
| | - John Y.K. Lee
- Department of Neurosurgery, University of Pennsylvania, Philadelphia (J.Y.K.L.)
| | - David Mathieu
- Division of Neurosurgery, Centre de recherché du CHUS, University of Sherbrooke, QC, Canada (D.M.)
| | - Caleb Feliciano
- Section of Neurological Surgery, University of Puerto Rico, San Juan (C.F., R.R.-M., L.A.)
| | | | - Luis Almodovar
- Section of Neurological Surgery, University of Puerto Rico, San Juan (C.F., R.R.-M., L.A.)
| | | | - Douglas Kondziolka
- Department of Neurosurgery, New York University Langone Medical Center (D.K.)
| | - Gene H. Barnett
- Department of Neurosurgery, Cleveland Clinic Foundation, OH (G.H.B.)
| | - L. Dade Lunsford
- Department of Neurological Surgery, University of Pittsburgh, PA (H.K., L.D.L.)
| | - Jason P. Sheehan
- From the Department of Neurosurgery, University of Louisville, KY (D.D.)
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28
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Bazarde HA, Wenz F, Hänggi D, Etminan N. Radiosurgery of Brain Arteriovenous and Cavernous Malformations. Radiat Oncol 2019. [DOI: 10.1007/978-3-319-52619-5_10-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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29
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Ding D, Ilyas A, Sheehan JP. Contemporary Management of High-Grade Brain Arteriovenous Malformations. Neurosurgery 2018; 65:24-33. [DOI: 10.1093/neuros/nyy107] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Accepted: 04/03/2018] [Indexed: 11/13/2022] Open
Affiliation(s)
- Dale Ding
- Department of Neurosurgery, Barrow Neurological Institute, Phoenix, Arizona
| | - Adeel Ilyas
- Department of Neurosurgery, University of Alabama at Birmingham, Birmingham, Alabama
| | - Jason P Sheehan
- Department of Neurosurgery, University of Virginia, Charlottesville, Virginia
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30
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Meybodi AT, Kim H, Nelson J, Hetts SW, Krings T, terBrugge KG, Faughnan ME, Lawton MT. Surgical Treatment vs Nonsurgical Treatment for Brain Arteriovenous Malformations in Patients with Hereditary Hemorrhagic Telangiectasia: A Retrospective Multicenter Consortium Study. Neurosurgery 2018; 82:35-47. [PMID: 28973426 DOI: 10.1093/neuros/nyx168] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Accepted: 05/24/2017] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Cerebral arteriovenous malformations (AVMs) are common in patients with hereditary hemorrhagic telangiectasia (HHT). However, due to the rarity of HHT and little published evidence of outcomes from management of brain AVMs in this disease, current international HHT guidelines recommend an individualized approach. Specifically, the outcomes for surgical vs nonsurgical management of these lesions have not been reported to date. OBJECTIVE To report long-term outcomes of surgical resection of brain AVMs in HHT patients compared to outcomes in nonsurgically treated patients. METHODS From the database of the Brain Vascular Malformation Consortium HHT project, 19 patients with 20 resected AVMs (group 1) and 22 patients with 33 AVMs who received nonsurgical treatment (group 2) were studied. The groups were retrospectively reviewed for changes in functional status (modified Rankin Scale score) during the follow-up period. RESULTS During the follow-up period, 9% of patients in group 1 suffered from worsening of functional status, whereas this figure was 16% for group 2 (P > .05). Functional outcomes were not statistically different between the 2 groups at the latest follow-up (P > .05). CONCLUSION HHT patients treated surgically for brain AVMs appear to have long-term functional outcomes comparable to nonsurgical (including observational) therapy with fewer unfavorable outcomes. It is therefore reasonable to consider surgical resection as a management option in the multidisciplinary team's individualized treatment strategy for HHT patients with brain AVMs.
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Affiliation(s)
- Ali Tayebi Meybodi
- Department of Neurological Surgery, University of California, San Francisco, San Francisco, California
| | - Helen Kim
- Department of Anesthesia and Perioperative Care, University of California, San Francisco, San Francisco, California.,Center for Cerebrovascular Research, University of California, San Francisco, San Francisco, California
| | - Jeffrey Nelson
- Department of Anesthesia and Perioperative Care, University of California, San Francisco, San Francisco, California.,Center for Cerebrovascular Research, University of California, San Francisco, San Francisco, California
| | - Steven W Hetts
- Division of Neurointerventional Radiology, Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, California.,Center for Cerebrovascular Research, University of California, San Francisco, San Francisco, California
| | - Timo Krings
- Division of Neuroradiology, Department of Medical Imaging, Toronto Western Hospital, University of Toronto, Toronto, Ontario, Canada
| | - Karel G terBrugge
- Division of Neuroradiology, Department of Medical Imaging, Toronto Western Hospital, University of Toronto, Toronto, Ontario, Canada
| | - Marie E Faughnan
- Division of Respirology, Keenan Research Centre, and Li Ka Shing Knowledge Institute, St. Michael's Hospital, University of Toronto, Toronto, Ontario, Canada
| | - Michael T Lawton
- Department of Neurological Surgery, University of California, San Francisco, San Francisco, California.,Department of Anesthesia and Perioperative Care, University of California, San Francisco, San Francisco, California.,Center for Cerebrovascular Research, University of California, San Francisco, San Francisco, California
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31
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Morgan MK, Guilfoyle M, Kirollos R, Heller GZ. Remodeling of the Feeding Arterial System After Surgery for Resection of Brain Arteriovenous Malformations: An Observational Study. Neurosurgery 2018. [DOI: 10.1093/neuros/nyy007] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Michael Kerin Morgan
- Department of Clinical Medicine, Macquarie University, New South Wales, Australia
| | - Mathew Guilfoyle
- Department of Neurosurgery, Addenbrooke's Hospital, Cambridge, UK
| | - Ramez Kirollos
- Department of Neurosurgery, Addenbrooke's Hospital, Cambridge, UK
| | - Gillian Z Heller
- Department of Statistics, Macquarie University, New South Wales, Australia
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Quality of life and disability 12 months after surgery vs. conservative management for unruptured brain arteriovenous malformations: Scottish population-based and Australian hospital-based studies. Acta Neurochir (Wien) 2018; 160:559-566. [PMID: 29327142 DOI: 10.1007/s00701-017-3451-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Accepted: 12/21/2017] [Indexed: 10/18/2022]
Abstract
BACKGROUND Few data are available on disability and quality of life (QOL) after surgery versus conservative management for unruptured brain arteriovenous malformations (uAVMs). OBJECTIVE The aim of this study was to test the hypothesis that QOL and disability are worse after surgery ± preoperative embolisation for uAVM compared with conservative management. METHODS We included consecutive patients diagnosed with uAVM from a prospective population-based study in Scotland (1999-2003; 2006-2010) and a prospective hospital-based series in Australia (2011-2015). We assessed outcomes on the modified Rankin Scale (mRS) and the Short Form (SF)-36 at ~ 12 months after surgery or conservative treatment and compared these groups using continuous ordinal regression in the two cohorts separately. RESULTS Surgery was performed for 29% of all uAVM cases diagnosed in Scotland and 84% of all uAVM referred in Australia. There was no statistically significant difference between surgery and conservative management at 12 months among 79 patients in Scotland (mean SF-36 Physical Component Score (PCS) 39 [SD 14] vs. 39 [SD 13]; mean SF-36 Mental Component Score (MCS) 38 [SD 14] vs. 39 [SD 14]; mRS > 1, 24 vs. 9%), nor among 37 patients in Australia (PCS 51 [SD 10] vs. 49 [SD 6]; MCS 48 [SD 12] vs. 49 [SD 10]; mRS > 1, 19 vs. 30%). In the Australian series, there was no statistically significant change in the MCS and PCS between baseline before surgery or conservative management and 12 months. CONCLUSIONS We did not find a statistically significant difference between surgery ± preoperative embolisation and conservative management in disability or QOL at 12 months.
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Yu JF, Nicholson AD, Nelson J, Alexander MD, Tse SH, Hetts SW, Hemphill JC, Kim H, Cooke DL. Predictors of intracranial hemorrhage volume and distribution in brain arteriovenous malformation. Interv Neuroradiol 2018; 24:183-188. [PMID: 29343148 DOI: 10.1177/1591019917749819] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Background and purpose Despite evidence regarding risk factors for brain arteriovenous malformation (bAVM)-associated spontaneous intracranial hemorrhage (ICH), few data exist describing the spectrum of clinical outcomes that bAVM-associated ICH may manifest. This study aimed to identify the demographical, clinical, and bAVM anatomical variables associated with ICH volume and the presence of intraventricular hemorrhage (IVH) of ruptured bAVMs, two indicators of worse clinical outcome, to help better predict outcome for unruptured bAVMs. Methods Computed tomography images ( n = 169) of patients with ruptured bAVM in a prospectively maintained institutional database were retrospectively reviewed to calculate ICH volume and the presence or absence of IVH. Demographic, clinical, and bAVM characteristics information was summarized and analyzed with univariable and multivariable regression models to identify the associations of these features with ICH volume and the presence of IVH. Results Patient sex, exclusively deep venous drainage, and lobar location were associated with ICH volume in univariable analysis; exclusively deep venous drainage remained significant in multivariable analysis (PI = 0.33, 95% CI: 0.21-0.52, p < 0.001). Exclusively deep venous drainage, multiple feeding arteries, and venous stenosis were associated with IVH in univariable analysis; exclusively deep venous drainage (OR = 7.27, 95% CI: 1.94-27.29, p = 0.003) remained significant in multivariable analysis. Conclusions Variables associated with ICH volume and the presence of IVH in ruptured bAVMs were evaluated and identified. They impart information that may help predict the clinical outcome of unruptured bAVM, in turn aiding clinicians in treatment planning.
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Affiliation(s)
- Jay F Yu
- 1 Department of Radiology and Biomedical Imaging, 8785 University of California, San Francisco , CA, USA
| | - Andrew D Nicholson
- 1 Department of Radiology and Biomedical Imaging, 8785 University of California, San Francisco , CA, USA
| | - Jeffrey Nelson
- 2 Center for Cerebrovascular Research, Department of Anesthesia and Perioperative Care, 8785 University of California, San Francisco , CA, USA
| | - Matthew D Alexander
- 1 Department of Radiology and Biomedical Imaging, 8785 University of California, San Francisco , CA, USA
| | - Stephanie H Tse
- 1 Department of Radiology and Biomedical Imaging, 8785 University of California, San Francisco , CA, USA
| | - Steven W Hetts
- 1 Department of Radiology and Biomedical Imaging, 8785 University of California, San Francisco , CA, USA
| | - J Claude Hemphill
- 1 Department of Radiology and Biomedical Imaging, 8785 University of California, San Francisco , CA, USA
| | - Helen Kim
- 2 Center for Cerebrovascular Research, Department of Anesthesia and Perioperative Care, 8785 University of California, San Francisco , CA, USA.,3 Department of Epidemiology and Biostatistics, 8785 University of California, San Francisco , CA, USA
| | - Daniel L Cooke
- 1 Department of Radiology and Biomedical Imaging, 8785 University of California, San Francisco , CA, USA
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Gorozhanin VA, Pilipenko YV, Belousova OB, Eliava SS. [Microsurgical treatment of non-bleeding cerebral arteriovenous malformations]. ZHURNAL VOPROSY NEIROKHIRURGII IMENI N. N. BURDENKO 2018; 82:119-124. [PMID: 30412165 DOI: 10.17116/neiro201882051119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Treatment of non-bleeding cerebral arteriovenous malformations (AVMs) causes a lot of controversy among neurosurgeons around the world. The most discussed issue is choosing the method and indications for a certain treatment option. Despite the accumulated data, including the results of randomized studies, there is no consensus on this issue among experts. The purpose of this review is to analyze current concepts of the management and reasonability of microsurgical treatment of non-bleeding cerebral AVMs based on the latest published studies.
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Affiliation(s)
| | | | | | - Sh Sh Eliava
- Burdenko Neurosurgical Institute, Moscow, Russia
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35
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Mendes GAC, Kalani MYS, Iosif C, Lucena AF, Carvalho R, Saleme S, Mounayer C. Transvenous Curative Embolization of Cerebral Arteriovenous Malformations: A Prospective Cohort Study. Neurosurgery 2017; 83:957-964. [DOI: 10.1093/neuros/nyx581] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2017] [Accepted: 11/14/2017] [Indexed: 11/12/2022] Open
Affiliation(s)
- George A C Mendes
- Department of Interventional Neuro-radiology, Hôpital Dupuytren, Centre Regional Hospitalier Universitaire de Limoges, Limoges, France
| | - M Yashar S Kalani
- Department of Neurosurgery, University of Utah School of Medicine, Salt Lake City, Utah
| | - Christina Iosif
- Department of Interventional Neuro-radiology, Hôpital Dupuytren, Centre Regional Hospitalier Universitaire de Limoges, Limoges, France
| | - Adson F Lucena
- Department of Interventional Neuro-radiology, Hôpital Dupuytren, Centre Regional Hospitalier Universitaire de Limoges, Limoges, France
| | - Rui Carvalho
- Department of Interventional Neuro-radiology, Hôpital Dupuytren, Centre Regional Hospitalier Universitaire de Limoges, Limoges, France
| | - Suzana Saleme
- Department of Interventional Neuro-radiology, Hôpital Dupuytren, Centre Regional Hospitalier Universitaire de Limoges, Limoges, France
| | - Charbel Mounayer
- Department of Interventional Neuro-radiology, Hôpital Dupuytren, Centre Regional Hospitalier Universitaire de Limoges, Limoges, France
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Patibandla MR, Ding D, Kano H, Xu Z, Lee JYK, Mathieu D, Whitesell J, Pierce JT, Huang PP, Kondziolka D, Feliciano C, Rodriguez-Mercado R, Almodovar L, Grills IS, Silva D, Abbassy M, Missios S, Barnett GH, Lunsford LD, Sheehan JP. Stereotactic radiosurgery for Spetzler-Martin Grade IV and V arteriovenous malformations: an international multicenter study. J Neurosurg 2017; 129:498-507. [PMID: 28885118 DOI: 10.3171/2017.3.jns162635] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Due to the complexity of Spetzler-Martin (SM) Grade IV-V arteriovenous malformations (AVMs), the management of these lesions remains controversial. The aims of this multicenter, retrospective cohort study were to evaluate the outcomes after single-session stereotactic radiosurgery (SRS) for SM Grade IV-V AVMs and determine predictive factors. METHODS The authors retrospectively pooled data from 233 patients (mean age 33 years) with SM Grade IV (94.4%) or V AVMs (5.6%) treated with single-session SRS at 8 participating centers in the International Gamma Knife Research Foundation. Pre-SRS embolization was performed in 71 AVMs (30.5%). The mean nidus volume, SRS margin dose, and follow-up duration were 9.7 cm3, 17.3 Gy, and 84.5 months, respectively. Statistical analyses were performed to identify factors associated with post-SRS outcomes. RESULTS At a mean follow-up interval of 84.5 months, favorable outcome was defined as AVM obliteration, no post-SRS hemorrhage, and no permanently symptomatic radiation-induced changes (RIC) and was achieved in 26.2% of patients. The actuarial obliteration rates at 3, 7, 10, and 12 years were 15%, 34%, 37%, and 42%, respectively. The annual post-SRS hemorrhage rate was 3.0%. Symptomatic and permanent RIC occurred in 10.7% and 4% of the patients, respectively. Only larger AVM diameter (p = 0.04) was found to be an independent predictor of unfavorable outcome in the multivariate logistic regression analysis. The rate of favorable outcome was significantly lower for unruptured SM Grade IV-V AVMs compared with ruptured ones (p = 0.042). Prior embolization was a negative independent predictor of AVM obliteration (p = 0.024) and radiologically evident RIC (p = 0.05) in the respective multivariate analyses. CONCLUSIONS In this multi-institutional study, single-session SRS had limited efficacy in the management of SM Grade IV-V AVMs. Favorable outcome was only achieved in a minority of unruptured SM Grade IV-V AVMs, which supports less frequent utilization of SRS for the management of these lesions. A volume-staged SRS approach for large AVMs represents an alternative approach for high-grade AVMs, but it requires further investigation.
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Affiliation(s)
| | - Dale Ding
- 1Department of Neurosurgery, University of Virginia, Charlottesville, Virginia
| | - Hideyuki Kano
- 2Department of Neurosurgery, University of Pittsburgh
| | - Zhiyuan Xu
- 1Department of Neurosurgery, University of Virginia, Charlottesville, Virginia
| | - John Y K Lee
- 3Gamma Knife Center, University of Pennsylvania, Philadelphia, Pennsylvania
| | - David Mathieu
- 4Department of Neurosurgery, University of Sherbrooke, Quebec, Canada
| | - Jamie Whitesell
- 3Gamma Knife Center, University of Pennsylvania, Philadelphia, Pennsylvania
| | - John T Pierce
- 3Gamma Knife Center, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Paul P Huang
- 5Gamma Knife Center, New York University, New York, New York
| | | | - Caleb Feliciano
- 6Department of Neurosurgery, University of Puerto Rico, San Juan, Puerto Rico
| | | | - Luis Almodovar
- 7Gamma Knife Center, Beaumont Health System, Royal Oak, Michigan; and
| | - Inga S Grills
- 7Gamma Knife Center, Beaumont Health System, Royal Oak, Michigan; and
| | - Danilo Silva
- 8Department of Neurosurgery, Cleveland Clinic Foundation, Cleveland, Ohio
| | - Mahmoud Abbassy
- 8Department of Neurosurgery, Cleveland Clinic Foundation, Cleveland, Ohio
| | - Symeon Missios
- 8Department of Neurosurgery, Cleveland Clinic Foundation, Cleveland, Ohio
| | - Gene H Barnett
- 8Department of Neurosurgery, Cleveland Clinic Foundation, Cleveland, Ohio
| | | | - Jason P Sheehan
- 1Department of Neurosurgery, University of Virginia, Charlottesville, Virginia
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Critical review of brain AVM surgery, surgical results and natural history in 2017. Acta Neurochir (Wien) 2017; 159:1457-1478. [PMID: 28555270 DOI: 10.1007/s00701-017-3217-x] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Accepted: 05/09/2017] [Indexed: 10/19/2022]
Abstract
BACKGROUND An understanding of the present standing of surgery, surgical results and the role in altering the future morbidity and mortality of untreated brain arteriovenous malformations (bAVMs) is appropriate considering the myriad alternative management pathways (including radiosurgery, embolization or some combination of treatments), varying risks and selection biases that have contributed to confusion regarding management. The purpose of this review is to clarify the link between the incidence of adverse outcomes that are reported from a management pathway of either surgery or no intervention with the projected risks of surgery or no intervention. METHODS A critical review of the literature was performed on the outcomes of surgery and non-intervention for bAVM. An analysis of the biases and how these may have influenced the outcomes was included to attempt to identify reasonable estimates of risks. RESULTS In the absence of treatment, the cumulative risk of future hemorrhage is approximately 16% and 29% at 10 and 20 years after diagnosis of bAVM without hemorrhage and 35% and 45% at 10 and 20 years when presenting with hemorrhage (annualized, this risk would be approximately 1.8% for unruptured bAVMs and 4.7% for 8 years for bAVMs presenting with hemorrhage followed by the unruptured bAVM rate). The cumulative outcome of these hemorrhages depends upon whether the patient remains untreated and is allowed to have a further hemorrhage or is treated at this time. Overall, approximately 42% will develop a new permanent neurological deficit or death from a hemorrhagic event. The presence of an associated proximal intracranial aneurysm (APIA) and restriction of venous outflow may increase the risk for subsequent hemorrhage. Other risks for increased risk of hemorrhage (age, pregnancy, female) were examined, and their purported association with hemorrhage is difficult to support. Both the Spetzler-Martin grading system (and its compaction into the Spetzler-Ponce tiers) and Lawton-Young supplementary grading system are excellent in predicting the risk of surgery. The 8-year risk of unfavorable outcome from surgery (complication leading to a permanent new neurological deficit with a modified Rankin Scale score of greater than one, residual bAVM or recurrence) is dependent on bAVM size, the presence of deep venous drainage (DVD) and location in critical brain (eloquent location). For patients with bAVMs who have neither a DVD nor eloquent location, the 8-year risk for an unfavorable outcome increases with size (increasing from 1 cm to 6 cm) from 1% to 9%. For patients with bAVM who have either a DVD or eloquent location (but not both), the 8-year risk for an unfavorable outcome increases with the size (increasing from 1 cm to 6 cm) from 4% to 35%. For patients with bAVM who have both a DVD and eloquent location, the 8-year risk for unfavorable outcome increases with size (increasing from 1 cm to 3 cm) from 12% to 38%. CONCLUSION Patients with a Spetzler-Ponce A bAVM expecting a good quality of life for the next 8 years are likely to do better with surgery in expert centers than remaining untreated. Ongoing research is urgently required on the outcome of management pathways for bAVM.
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Schaller K, Steiger HJ. To treat, or not to treat, that is the question: Critical review of brain AVM surgery, surgical results and natural history in 2017 by Michael Morgan et al. Acta Neurochir (Wien) 2017; 159:1455-1456. [PMID: 28526901 DOI: 10.1007/s00701-017-3221-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Accepted: 05/09/2017] [Indexed: 11/29/2022]
Affiliation(s)
- Karl Schaller
- Department of Neurosurgery, Faculty of Medicine, University of Geneva, Geneva, Switzerland.
| | - Hans-Jakob Steiger
- Department of Neurosurgery, Heinrich-Heine University, Düsseldorf, Germany
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39
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Meling TR. To treat or not to treat brain AVMs-that's still the question. Acta Neurochir (Wien) 2017; 159:1451-1454. [PMID: 28523423 DOI: 10.1007/s00701-017-3219-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Accepted: 05/09/2017] [Indexed: 11/30/2022]
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40
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Fahed R, Batista AL, Darsaut TE, Gentric JC, Ducroux C, Chaalala C, Roberge D, Bojanowski MW, Weill A, Roy D, Magro E, Raymond J. The Treatment of Brain Arteriovenous Malformation Study (TOBAS): A preliminary inter- and intra-rater agreement study on patient management. J Neuroradiol 2017; 44:247-253. [DOI: 10.1016/j.neurad.2017.03.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Revised: 12/29/2016] [Accepted: 03/06/2017] [Indexed: 11/29/2022]
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Cenzato M, Boccardi E, Beghi E, Vajkoczy P, Szikora I, Motti E, Regli L, Raabe A, Eliava S, Gruber A, Meling TR, Niemela M, Pasqualin A, Golanov A, Karlsson B, Kemeny A, Liscak R, Lippitz B, Radatz M, La Camera A, Chapot R, Islak C, Spelle L, Debernardi A, Agostoni E, Revay M, Morgan MK. European consensus conference on unruptured brain AVMs treatment (Supported by EANS, ESMINT, EGKS, and SINCH). Acta Neurochir (Wien) 2017; 159:1059-1064. [PMID: 28389875 DOI: 10.1007/s00701-017-3154-8] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Accepted: 03/13/2017] [Indexed: 11/30/2022]
Abstract
In December of 2016, a Consensus Conference on unruptured AVM treatment, involving 24 members of the three European societies dealing with the treatment of cerebral AVMs (EANS, ESMINT, and EGKS) was held in Milan, Italy. The panel made the following statements and general recommendations: (1) Brain arteriovenous malformation (AVM) is a complex disease associated with potentially severe natural history; (2) The results of a randomized trial (ARUBA) cannot be applied equally for all unruptured brain arteriovenous malformation (uBAVM) and for all treatment modalities; (3) Considering the multiple treatment modalities available, patients with uBAVMs should be evaluated by an interdisciplinary neurovascular team consisting of neurosurgeons, neurointerventionalists, radiosurgeons, and neurologists experienced in the diagnosis and treatment of brain AVM; (4) Balancing the risk of hemorrhage and the associated restrictions of everyday activities related to untreated unruptured AVMs against the risk of treatment, there are sufficient indications to treat unruptured AVMs grade 1 and 2 (Spetzler-Martin); (5) There may be indications for treating patients with higher grades, based on a case-to-case consensus decision of the experienced team; (6) If treatment is indicated, the primary strategy should be defined by the multidisciplinary team prior to the beginning of the treatment and should aim at complete eradication of the uBAVM; (7) After having considered the pros and cons of a randomized trial vs. a registry, the panel proposed a prospective European Multidisciplinary Registry.
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Affiliation(s)
- Marco Cenzato
- Neurosurgery, Grande Ospedale Metropolitano Niguarda, Milan, Italy.
| | | | - Ettore Beghi
- Neurology, Methodologist, IRCCS Istituto Mario Negri, Milan, Italy
| | - Peter Vajkoczy
- Neurosurgery, Charitè Universitatetsmedizin, Berlin, Germany
| | - Istvan Szikora
- Neuroradiology, National Institute of NeuroScience, Budapest, Hungary
| | - Enrico Motti
- Radiosurgery, Ospedale Villa Maria di Cotignola, Ravenna, Italy
| | - Luca Regli
- Neurosurgery, UniversitaetsSpital, Zurich, Switzerland
| | | | | | - Andreas Gruber
- Neurosurgery and Neuroradiology, University Hospital, Lintz, Austria
| | | | - Mika Niemela
- Neurosurgery, University Hospital, Helsinki, Finland
| | | | | | - Bengt Karlsson
- Radiosurgery, Singapore Gamma Knife Center, Singapore, Singapore
| | - Andras Kemeny
- Radiosurgery, Thornbury Radiosurgery Centre, Sheffield, UK
| | - Roman Liscak
- Radiosurgery, Na Homolce Hospital, Prague, Czech Republic
| | - Bodo Lippitz
- Radiosurgery, Bupa Cromwell Hospital, London, UK
| | | | | | - René Chapot
- Neuroradiology, Krupp Hospital, Hessen, Germany
| | - Civan Islak
- Neuroradiology, Cerrahpaşa Medical Faculty, İstanbul University, Istanbul, Turkey
| | - Laurent Spelle
- Neuroradiology, Bicetre University Hospital, Paris, France
| | | | - Elio Agostoni
- Neurology, Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - Martina Revay
- Neurosurgery, Grande Ospedale Metropolitano Niguarda, Milan, Italy
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Ding D, Starke RM, Kano H, Mathieu D, Huang PP, Kondziolka D, Feliciano C, Rodriguez-Mercado R, Almodovar L, Grills IS, Silva D, Abbassy M, Missios S, Barnett GH, Lunsford LD, Sheehan JP. Stereotactic Radiosurgery for ARUBA (A Randomized Trial of Unruptured Brain Arteriovenous Malformations)–Eligible Spetzler-Martin Grade I and II Arteriovenous Malformations: A Multicenter Study. World Neurosurg 2017; 102:507-517. [DOI: 10.1016/j.wneu.2017.03.061] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Revised: 03/12/2017] [Accepted: 03/14/2017] [Indexed: 11/12/2022]
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Aboukaïs R, Quidet M, Baroncini M, Bourgeois P, Leclerc X, Vinchon M, Lejeune JP. Grade 1 Spetzler and Martin cerebral ruptured arteriovenous malformations treated by microsurgery: Poor functional outcome is related to injury from haemorrhage. Neurochirurgie 2017; 63:69-73. [PMID: 28502562 DOI: 10.1016/j.neuchi.2016.10.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2016] [Revised: 10/06/2016] [Accepted: 10/14/2016] [Indexed: 11/29/2022]
Abstract
INTRODUCTION Ruptured arteriovenous malformations (rAVM) are life-threatening diseases. OBJECTIVE To evaluate the outcome of patients with grade 1 SPM rAVM after microsurgical treatment. MATERIALS AND METHOD We retrospectively included 64 consecutive operated patients with a grade 1 SPM rAVM in our institution between 2002 and 2012. Complications related to the surgical procedure were recorded. All patients were re-evaluated 3months after treatment using the modified Rankin Scale score (mRS). Persistent neurological disorders were evaluated 1year after bleeding. Conventional cerebral angiography was performed for each patient immediately after surgical treatment and 1year later. RESULTS The mean age at diagnosis was 30.8 years. Initial WFNS score was grade 1 in 25 patients, grade 2 in 11 patients, grade 3 in 10 patients, grade 4 in 9 patients and grade 5 in 9 patients. No remnant was left and a new surgery was performed only in a single patient who was initially operated-on under emergency conditions with limited preoperative investigations due to a poor clinical grade. Early postoperative complications related to the surgical procedure were recorded in 7 patients. The mRS score 3months after treatment was ≤2 in 53 patients (83%). Persistent neurological disorders were recorded in 40 patients (62.5%). High initial WFNS score (>2) and the hydrocephalus were significantly associated (P<0.05) to a bad functional outcome (mRS>2). CONCLUSION Grade 1 rAVM is a life-threatening disease concerning in most cases young patients. Long-term morbidity is often related to the hemorrhagic brain damage and rarely to the AVM resection.
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Affiliation(s)
- R Aboukaïs
- Department of Neurosurgery, Lille University Hospital, rue E. Laine, 59037 Lille cedex, France.
| | - M Quidet
- Department of Neurosurgery, Lille University Hospital, rue E. Laine, 59037 Lille cedex, France
| | - M Baroncini
- Department of Neurosurgery, Lille University Hospital, rue E. Laine, 59037 Lille cedex, France
| | - P Bourgeois
- Department of Neurosurgery, Lille University Hospital, rue E. Laine, 59037 Lille cedex, France
| | - X Leclerc
- Department of Neuroradiology, Lille University Hospital, rue E. Laine, 59037 Lille cedex, France
| | - M Vinchon
- Department of Neurosurgery, Lille University Hospital, rue E. Laine, 59037 Lille cedex, France
| | - J-P Lejeune
- Department of Neurosurgery, Lille University Hospital, rue E. Laine, 59037 Lille cedex, France
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44
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Affiliation(s)
- Robert A Solomon
- From Columbia University College of Physicians and Surgeons and the Department of Neurological Surgery, New York Presbyterian Hospital, New York
| | - E Sander Connolly
- From Columbia University College of Physicians and Surgeons and the Department of Neurological Surgery, New York Presbyterian Hospital, New York
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45
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Ilyas A, Ding D, Robert Hixson H, Xu Z, Starke RM, Sheehan JP. Volume-staged stereotactic radiosurgery for large intracranial arteriovenous malformations. J Clin Neurosci 2017; 43:202-207. [PMID: 28495425 DOI: 10.1016/j.jocn.2017.04.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Revised: 12/07/2016] [Accepted: 04/22/2017] [Indexed: 10/19/2022]
Abstract
Stereotactic radiosurgery (SRS) is an effective treatment option for intracranial arteriovenous malformations (AVM). However, the treatment of large AVMs (nidus volume ≥12cm3) with single-session SRS alone yields generally poor outcomes. Volume-staged SRS (VS-SRS) is a therapeutic strategy for large AVMs which seeks to avoid the disadvantages of single-session SRS, but reports regarding its efficacy remain limited. The aim of this retrospective cohort study is to assess the outcomes of VS-SRS for large AVMs. We identified all AVM patients who underwent VS-SRS at our institution from 2000 to 2015 with ≥12months follow-up. Baseline and outcomes data were analyzed. A total of 12 patients were selected for the study cohort, with a median age of 30years. The median maximum AVM diameter and nidus volume were 4.3cm and 13.6cm3, respectively. The Spetzler-Martin grade was III and IV each in six AVMs (50%). All patients underwent VS-SRS in two stages, and the median margin dose was 17Gy for both VS-SRS procedures. The median time interval between the two procedures was three months. After a median radiologic follow-up duration of 39months, the median degree of AVM volume reduction (evaluable in nine patients) was 87% (range 12-99%). The rates of radiologically evident, symptomatic, and permanent radiation-induced changes were 58%, 25%, and 8%, respectively. There were no cases of post-SRS hemorrhage. VS-SRS substantially reduces the size of large AVMs. A potential role for VS-SRS may be to facilitate subsequent definitive intervention to obliterate a shrunken, residual nidus.
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Affiliation(s)
- Adeel Ilyas
- University of Virginia, School of Medicine, Charlottesville, VA 22908, United States
| | - Dale Ding
- University of Virginia, Department of Neurosurgery, Charlottesville, VA 22908, United States
| | - H Robert Hixson
- University of Virginia, Department of Radiology and Medical Imaging, Charlottesville, VA 22908, United States
| | - Zhiyuan Xu
- University of Virginia, Department of Neurosurgery, Charlottesville, VA 22908, United States
| | - Robert M Starke
- University of Virginia, Department of Neurosurgery, Charlottesville, VA 22908, United States; University of Miami, Department of Neurological Surgery, Miami, FL 33136, United States
| | - Jason P Sheehan
- University of Virginia, Department of Neurosurgery, Charlottesville, VA 22908, United States.
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Yang W, Porras JL, Xu R, Braileanu M, Khalid S, Hung AL, Caplan JM, Garzon-Muvdi T, Rong X, Colby GP, Coon AL, Tamargo RJ, Huang J. Comparison of Hemorrhagic Risk in Intracranial Arteriovenous Malformations Between Conservative Management and Embolization as the Single Treatment Modality. Neurosurgery 2017; 82:481-490. [DOI: 10.1093/neuros/nyx230] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2016] [Accepted: 04/10/2017] [Indexed: 11/14/2022] Open
Abstract
Abstract
BACKGROUND
Embolization has been discussed as a feasible single modality treatment for intracranial arteriovenous malformations (AVMs).
OBJECTIVE
To compare hemorrhagic risk between embolization and conservative management in a multivariate survival analysis.
METHODS
We retrospectively reviewed records of patients with intracranial AVMs evaluated at our institution from 1990 to 2013. We included patients recommended to undergo embolization without other treatment modalities and patients managed conservatively. Multivariate Cox regression analysis of hemorrhage-free survival was performed, with the survival interval right-censored to date of either last follow-up or salvage treatment.
RESULTS
We identified 205 patients matching our inclusion criteria, with 160 patients in the noninterventional group and 45 in the embolization group. The average age of all patients was 40.2 ± 19.5 yr, with younger patients undergoing embolization more often (P = .026). Fifty-one (31.9%) conservatively managed patients and 13 (28.9%) patients treated by embolization (P = .703) presented with hemorrhage. Other baseline characteristics were similar between the 2 management groups. During an average follow-up period of 7.7 yr, 30 patients (14.6%) experienced hemorrhage recurrence. Multivariate Cox regression revealed older age (P = .031) and hemorrhagic presentation (P < .001) to be statistically associated with follow-up hemorrhage. In a subset analysis of unruptured AVMs, embolization was associated with a 4-fold hazard ratio of hemorrhage compared to conservative management (P = .044).
CONCLUSION
Older age and initial presentation with hemorrhage were associated with increased risk of hemorrhage during follow-up. Treatment of AVMs with embolization as the sole modality may increase hemorrhagic risk compared with conservative management, especially in unruptured AVMs.
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Affiliation(s)
- Wuyang Yang
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Jose L Porras
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Risheng Xu
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Maria Braileanu
- Department of Internal Medicine, MedStar Georgetown University Hospital/MedStar Washington Hospital Center, Washington, District of Columbia
| | - Syed Khalid
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Alice L Hung
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Justin M Caplan
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Tomas Garzon-Muvdi
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Xiaoming Rong
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
- Department of Neurology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Geoffrey P Colby
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Alexander L Coon
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Rafael J Tamargo
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Judy Huang
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
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Matsumaru Y, Ishikawa E, Yamamoto T, Matsumura A. Recent Trends in Neuro-endovascular Treatment for Acute Ischemic Stroke, Cerebral Aneurysms, Carotid Stenosis, and Brain Arteriovenous Malformations. Neurol Med Chir (Tokyo) 2017; 57:253-260. [PMID: 28458385 PMCID: PMC5495956 DOI: 10.2176/nmc.ra.2017-0027] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
The efficacy of mechanical thrombectomy with stent retrievers for emergent large vessel occlusion has been proved by randomized trials. Mechanical thrombectomy is increasingly being adopted in Japan since stent retrievers were first approved in 2014. An urgent clinical task is to offer structured systems of care to provide this treatment in a timely fashion to all patients with emergent large vessel occlusion. Treatment with flow-diverting stents is currently a preferred treatment option worldwide for large and giant unruptured aneurysms. Initial studies reported high rates of complete aneurysm occlusion, even in large and giant aneurysms, without delayed aneurysmal recanalization and/or growth. The Pipeline Embolic Device is a flow diverter recently approved in Japan for the treatment of large and giant wide-neck unruptured aneurysms in the internal carotid artery, from the petrous to superior hypophyseal segments. Carotid artery stenting is the preferred treatment approach for carotid stenosis in Japan, whereas it remains an alternative for carotid endarterectomy in Europe and the United States. Carotid artery stenting with embolic protection and plaque imaging is effective in achieving favorable outcomes. The design and conclusions of a randomized trial of unruptured brain arteriovenous malformations (ARUBA) trial, which compared medical management alone and medical management with interventional therapy in patients with an unruptured arteriovenous brain malformation, are controversial. However, the annual bleeding rate (2.2%) of the medical management group obtained from this study is worthy of consideration when deciding treatment strategy.
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Affiliation(s)
- Yuji Matsumaru
- Division for Stroke, Department of Neurosurgery, Faculty of Medicine, University of Tsukuba
| | - Eiichi Ishikawa
- Department of Neurosurgery, Faculty of Medicine, University of Tsukuba
| | - Tetsuya Yamamoto
- Department of Neurosurgery, Faculty of Medicine, University of Tsukuba
| | - Akira Matsumura
- Department of Neurosurgery, Faculty of Medicine, University of Tsukuba
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Ryu B, Ishikawa T, Kawamata T. Multimodal Treatment Strategy for Spetzler-Martin Grade III Arteriovenous Malformations of the Brain. Neurol Med Chir (Tokyo) 2017; 57:73-81. [PMID: 27169498 PMCID: PMC5341343 DOI: 10.2176/nmc.ra.2016-0056] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The Spetzler–Martin (S–M) grading scale was developed to assess the risk of postoperative neurological complications after the surgical treatment of arteriovenous malformations (AVMs) of the brain. Treatment-associated morbidity and poor outcomes are particularly relevant to Grade III AVMs and improving the safety while attaining acceptable cure rates still poses a challenge. A multimodal treatment strategy combining surgery, embolization, and radiosurgery is recommended for S–M Grade III AVMs because of the surgical risk. Grade III AVMs are the heterogeneous group that has been further divided into subgroups according to the size, the location in eloquent cortex, and the presence of deep venous drainage. The risks associated with different treatment modalities vary depending on the subgroup, and the rating scales have been further refined to predict the risk more accurately and help determine the most appropriate treatment choice. Previous results for the treatment of S–M Grade III AVMs vary widely among studies, and the treatment modalities are also different in each study. Being familiar with previous treatment results is essential for improving treatment outcomes.
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Affiliation(s)
- Bikei Ryu
- Department of Neurosurgery, Tokyo Women's Medical University
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49
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Starke RM, Ding D, Kano H, Mathieu D, Huang PP, Feliciano C, Rodriguez-Mercado R, Almodovar L, Grills IS, Silva D, Abbassy M, Missios S, Kondziolka D, Barnett GH, Dade Lunsford L, Sheehan JP. International multicenter cohort study of pediatric brain arteriovenous malformations. Part 2: Outcomes after stereotactic radiosurgery. J Neurosurg Pediatr 2017; 19:136-148. [PMID: 27911249 DOI: 10.3171/2016.9.peds16284] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Pediatric patients (age < 18 years) harboring brain arteriovenous malformations (AVMs) are burdened with a considerably higher cumulative lifetime risk of hemorrhage than adults. Additionally, the pediatric population was excluded from recent prospective comparisons of intervention versus conservative management for unruptured AVMs. The aims of this multicenter, retrospective cohort study are to analyze the outcomes after stereotactic radiosurgery for unruptured and ruptured pediatric AVMs. METHODS We analyzed and pooled AVM radiosurgery data from 7 participating in the International Gamma Knife Research Foundation. Patients younger than 18 years of age who had at least 12 months of follow-up were included in the study cohort. Favorable outcome was defined as AVM obliteration, no post-radiosurgical hemorrhage, and no permanently symptomatic radiation-induced changes (RIC). The post-radiosurgery outcomes of unruptured versus ruptured pediatric AVMs were compared, and statistical analyses were performed to identify predictive factors. RESULTS The overall pediatric AVM cohort comprised 357 patients with a mean age of 12.6 years (range 2.8-17.9 years). AVMs were previously treated with embolization, resection, and fractionated external beam radiation therapy in 22%, 6%, and 13% of patients, respectively. The mean nidus volume was 3.5 cm3, 77% of AVMs were located in eloquent brain areas, and the Spetzler-Martin grade was III or higher in 59%. The mean radiosurgical margin dose was 21 Gy (range 5-35 Gy), and the mean follow-up was 92 months (range 12-266 months). AVM obliteration was achieved in 63%. During a cumulative latency period of 2748 years, the annual post-radiosurgery hemorrhage rate was 1.4%. Symptomatic and permanent radiation-induced changes occurred in 8% and 3%, respectively. Favorable outcome was achieved in 59%. In the multivariate logistic regression analysis, the absence of prior AVM embolization (p = 0.001) and higher margin dose (p < 0.001) were found to be independent predictors of a favorable outcome. The rates of favorable outcome for patients treated with a margin dose ≥ 22 Gy vs < 22 Gy were 78% (110/141 patients) and 47% (101/216 patients), respectively. A margin dose ≥ 22 Gy yielded a significantly higher probability of a favorable outcome (p < 0.001). The unruptured and ruptured pediatric AVM cohorts included 112 and 245 patients, respectively. Ruptured AVMs had significantly higher rates of obliteration (68% vs 53%, p = 0.005) and favorable outcome (63% vs 51%, p = 0.033), with a trend toward a higher incidence of post-radiosurgery hemorrhage (10% vs 4%, p = 0.07). The annual post-radiosurgery hemorrhage rates were 0.8% for unruptured and 1.6% for ruptured AVMs. CONCLUSIONS Radiosurgery is a reasonable treatment option for pediatric AVMs. Obliteration and favorable outcomes are achieved in the majority of patients. The annual rate of latency period hemorrhage after radiosurgery for both ruptured and unruptured pediatric AVM patients conveys a significant risk until the nidus is obliterated.
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Affiliation(s)
- Robert M Starke
- University of Miami, Department of Neurological Surgery, Miami, Florida
| | - Dale Ding
- University of Virginia, Department of Neurosurgery, Charlottesville, Virginia
| | - Hideyuki Kano
- University of Pittsburgh, Department of Neurological Surgery, Pittsburgh, Pennsylvania
| | - David Mathieu
- University of Sherbrooke, Division of Neurosurgery, Sherbrooke, Quebec, Canada; and
| | - Paul P Huang
- New York University Langone Medical Center, Department of Neurosurgery, New York, New York
| | - Caleb Feliciano
- University of Puerto Rico, Section of Neurological Surgery, San Juan, Puerto Rico
| | | | - Luis Almodovar
- University of Puerto Rico, Section of Neurological Surgery, San Juan, Puerto Rico
| | - Inga S Grills
- Beaumont Health System, Department of Radiation Oncology, Royal Oak, Michigan
| | - Danilo Silva
- Cleveland Clinic Foundation, Department of Neurosurgery, Cleveland, Ohio
| | - Mahmoud Abbassy
- Cleveland Clinic Foundation, Department of Neurosurgery, Cleveland, Ohio
| | - Symeon Missios
- Cleveland Clinic Foundation, Department of Neurosurgery, Cleveland, Ohio
| | - Douglas Kondziolka
- New York University Langone Medical Center, Department of Neurosurgery, New York, New York
| | - Gene H Barnett
- Cleveland Clinic Foundation, Department of Neurosurgery, Cleveland, Ohio
| | - L Dade Lunsford
- University of Pittsburgh, Department of Neurological Surgery, Pittsburgh, Pennsylvania
| | - Jason P Sheehan
- University of Virginia, Department of Neurosurgery, Charlottesville, Virginia
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50
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Ding D, Starke RM, Sheehan JP. Radiosurgery for the management of cerebral arteriovenous malformations. HANDBOOK OF CLINICAL NEUROLOGY 2017; 143:69-83. [PMID: 28552160 DOI: 10.1016/b978-0-444-63640-9.00007-2] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Cerebral arteriovenous malformations (AVMs) are rare, unstable vascular lesions which spontaneously rupture at a rate of approximately 2-4% annually. Stereotactic radiosurgery is a minimally invasive treatment for AVMs, with a favorable risk-to-benefit profile in most patients, with respect to obliteration, hemorrhage, and seizure control. Radiosurgery is ideally suited for small to medium-sized AVMs (diameter <3cm or volume <12cm3) located in deep or eloquent brain regions. Obliteration is ultimately achieved in 70-80% of cases and is directly associated with nidus volume and radiosurgical margin dose. Adverse radiation effects, which appear as T2-weighted hyperintensities on magnetic resonance imaging, develop in 30-40% of patients after AVM radiosurgery, are symptomatic in 10%, and fail to clinically resolve in 2-3%. The risk of AVM hemorrhage may be reduced by radiosurgery, but the hemorrhage risk persists during the latency period between treatment and obliteration. Delayed postradiosurgery cyst formation occurs in 2% of cases and may require surgical treatment. Radiosurgery abolishes or ameliorates seizure activity in the majority of patients with AVM-associated epilepsy and induces de novo seizures in 1-2% of those without preoperative seizures. Strategies for the treatment of large-volume AVMs include neoadjuvant embolization and either dose- or volume-staged radiosurgery.
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Affiliation(s)
- Dale Ding
- Department of Neurosurgery, University of Virginia, Charlottesville, VA, USA
| | - Robert M Starke
- Department of Neurosurgery, University of Virginia, Charlottesville, VA, USA
| | - Jason P Sheehan
- Department of Neurosurgery, University of Virginia, Charlottesville, VA, USA.
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