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de Liyis BG, Arini AAIK, Karuniamaya CP, Pramana NAK, Tini K, Widyadharma IPE, Setyopranoto I. Risk of intracranial hemorrhage in brain arteriovenous malformations: a systematic review and meta-analysis. J Neurol 2024; 271:2274-2284. [PMID: 38396103 DOI: 10.1007/s00415-024-12235-1] [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: 01/16/2024] [Revised: 01/28/2024] [Accepted: 01/29/2024] [Indexed: 02/25/2024]
Abstract
BACKGROUND AND OBJECTIVE Brain arteriovenous malformations (bAVMs) carry a risk of hemorrhage. We aim to identify factors associated with subsequent hemorrhages. METHODS Systematic searches were conducted across the ScienceDirect, Medline, and Cochrane databases. Assessed risk factors included bAVM size, bAVM volume, hemorrhage and seizure presentations, presence of deep venous drainage, deep-seated bAVMs, associated aneurysms, and Spetzler-Martin grade. Subgroup analyses were conducted on prior treatments, hemorrhage presentation, AVM size, and type of management. RESULTS The meta-analysis included 8 cohort studies and 2 trials, with 4,240 participants. Initial hemorrhage presentation (HR 2.41; 95% CI 1.94-2.98; p < 0.001), any deep venous drainage (HR 1.52; 95% CI 1.09-2.13; p = 0.01), and associated aneurysms (HR 1.78; 95% CI 1.41-2.23; p < 0.001) increased secondary hemorrhage risk. Conversely, higher Spetzler-Martin grades (HR 0.77; 95% CI 0.68-0.87; p < 0.001) and larger malformation volumes (HR 0.87; 95% CI 0.76-0.99; p = 0.04) reduced risk. Subgroups showed any deep venous drainage in patients without prior treatment (HR 1.64; 95% CI 1.25-2.15; p < 0.001), bAVM > 3 cm (HR 1.79; 95% CI 1.15-2.78; p = 0.01), and multimodal interventions (HR 1.69; 95% CI 1.12-2.53; p = 0.01) increased risk. The reverse effect was found for patients initially presented without hemorrhage (HR 0.79; 95% CI 0.67-0.93; p = 0.01). Deep bAVM was a risk factor in > 3 cm cases (HR 2.72; 95% CI 1.61-4.59; p < 0.001) and multimodal management (HR 2.77; 95% CI 1.66-4.56; p < 0.001). Kaplan-Meier analysis revealed increased hemorrhage risk for initial hemorrhage presentation, while cumulative survival was higher in intervened patients over 72 months. CONCLUSION Significant risk factors for bAVMs hemorrhage include initial hemorrhage, any deep venous drainage, and associated aneurysms. Deep venous drainage involvement is a risk factor in cases without prior treatment, those with bAVM > 3 cm, and cases managed with multimodal interventions. Deep bAVM involvement also emerges as a risk factor in cases > 3 cm and those managed with multimodal approaches.
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Affiliation(s)
- Bryan Gervais de Liyis
- Faculty of Medicine, Prof. I.G.N.G Ngoerah General Hospital, Universitas Udayana, Denpasar, Bali, Indonesia
| | | | | | - Nyoman Angga Krishna Pramana
- Department of Neurology, Faculty of Medicine, Prof. I.G.N.G Ngoerah General Hospital, Universitas Udayana, Denpasar, Bali, Indonesia
| | - Kumara Tini
- Department of Neurology, Faculty of Medicine, Prof. I.G.N.G Ngoerah General Hospital, Universitas Udayana, Denpasar, Bali, Indonesia
| | - I Putu Eka Widyadharma
- Department of Neurology, Faculty of Medicine, Prof. I.G.N.G Ngoerah General Hospital, Universitas Udayana, Denpasar, Bali, Indonesia.
| | - Ismail Setyopranoto
- Department of Neurology, Faculty of Medicine, Sardjito General Hospital, Universitas Gadjah Mada, Yogyakarta, Indonesia
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Abbas R, Al-Saiegh F, Atallah E, Naamani KE, Tjoumakaris S, Gooch MR, Herial NA, Jabbour P, Rosenwasser RH. Treatment of Intracerebral Vascular Malformations: When to Intervene. Curr Treat Options Neurol 2022. [DOI: 10.1007/s11940-022-00739-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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De Leacy R, Ansari SA, Schirmer CM, Cooke DL, Prestigiacomo CJ, Bulsara KR, Hetts SW. Endovascular treatment in the multimodality management of brain arteriovenous malformations: report of the Society of NeuroInterventional Surgery Standards and Guidelines Committee. J Neurointerv Surg 2022; 14:1118-1124. [PMID: 35414599 DOI: 10.1136/neurintsurg-2021-018632] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 03/07/2022] [Indexed: 12/15/2022]
Abstract
BACKGROUND The purpose of this review is to summarize the data available for the role of angiography and embolization in the comprehensive multidisciplinary management of brain arteriovenous malformations (AVMs METHODS: We performed a structured literature review for studies examining the indications, efficacy, and outcomes for patients undergoing endovascular therapy in the context of brain AVM management. We graded the quality of the evidence. Recommendations were arrived at through a consensus conference of the authors, then with additional input from the full Society of NeuroInterventional Surgery (SNIS) Standards and Guidelines Committee and the SNIS Board of Directors. RESULTS The multidisciplinary evaluation and treatment of brain AVMs continues to evolve. Recommendations include: (1) Digital subtraction catheter cerebral angiography (DSA)-including 2D, 3D, and reformatted cross-sectional views when appropriate-is recommended in the pre-treatment assessment of cerebral AVMs. (I, B-NR) . (2) It is recommended that endovascular embolization of cerebral arteriovenous malformations be performed in the context of a complete multidisciplinary treatment plan aiming for obliteration of the AVM and cure. (I, B-NR) . (3) Embolization of brain AVMs before surgical resection can be useful to reduce intraoperative blood loss, morbidity, and surgical complexity. (IIa, B-NR) . (4) The role of primary curative embolization of cerebral arteriovenous malformations is uncertain, particularly as compared with microsurgery and radiosurgery with or without adjunctive embolization. Further research is needed, particularly with regard to risk for AVM recurrence. (III equivocal, C-LD) . (5) Targeted embolization of high-risk features of ruptured brain AVMs may be considered to reduce the risk for recurrent hemorrhage. (IIb, C-LD) . (6) Palliative embolization may be useful to treat symptomatic AVMs in which curative therapy is otherwise not possible. (IIb, B-NR) . (7) The role of AVM embolization as an adjunct to radiosurgery is not well-established. Further research is needed. (III equivocal, C-LD) . (8) Imaging follow-up after apparent cure of brain AVMs is recommended to assess for recurrence. Although non-invasive imaging may be used for longitudinal follow-up, DSA remains the gold standard for residual or recurrent AVM detection in patients with concerning imaging and/or clinical findings. (I, C-LD) . (9) Improved national and international reporting of patients of all ages with brain AVMs, their treatments, side effects from treatment, and their long-term outcomes would enhance the ability to perform clinical trials and improve the rigor of research into this rare condition. (I, C-EO) . CONCLUSIONS Although the quality of evidence is lower than for more common conditions subjected to multiple randomized controlled trials, endovascular therapy has an important role in the management of brain AVMs. Prospective studies are needed to strengthen the data supporting these recommendations.
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Affiliation(s)
- Reade De Leacy
- Neurosurgery, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Sameer A Ansari
- Radiology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | | | - Daniel L Cooke
- Radiology and Biomedical Imaging, University California San Francisco, San Francisco, California, USA
| | | | - Ketan R Bulsara
- Division of Neurosurgery, University of Connecticut, Farmington, Connecticut, USA
| | - Steven W Hetts
- Radiology and Biomedical Imaging, University California San Francisco, San Francisco, California, USA
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Certo F, Altieri R, Grasso G, Barbagallo GMV. Role of i-CT, i-US, and Neuromonitoring in Surgical Management of Brain Cavernous Malformations and Arteriovenous Malformations: A Case Series. World Neurosurg 2022; 159:402-408. [PMID: 35255639 DOI: 10.1016/j.wneu.2021.12.078] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 12/19/2021] [Accepted: 12/20/2021] [Indexed: 11/18/2022]
Abstract
OBJECTIVE We retrospectively reviewed the institutional experience in patients who underwent microsurgical resection of cavernous malformations (CMs) or arteriovenous malformations (AVMs) using a multimodal intraoperative protocol including neuronavigation, intraoperative ultrasound (i-US), computed tomography (i-CT), and neuromonitoring. METHODS Twenty-four patients (14 male), with a mean age of 47.5 years (range 27-73), have been included: 20 of them suffered from CMs and 4 suffered from AVMs. Neuromonitoring was used in 18 cases, when lesions were located in eloquent areas; 2 patients underwent awake craniotomy. First, an i-CT scan with and without contrast was acquired after patient positioning. Navigated B-mode ultrasound acquisition was carried out after dural opening to identify the lesion (CMs or AVMs nidus). Following identification and resection of vascular lesions, postcontrast i-CT (or CT-angio) was performed to detect and localize any small or calcified remnant (in cases of CMs) or residual vessels feeding the nidus (in cases of AVMs). RESULTS In 5 cases of CMs and in 1 case of AVM, i-CT identified small residual lesions. In these cases, new i-CT images were uploaded into the navigation system and used for further resection. i-US was useful before starting transsulcal or transcortical approach to identify the lesions and guide the trajectory of the approach. However, several artifacts were observed during subsequent steps of dissection, making image interpretation difficult. CONCLUSIONS The combination of different intraoperative real-time imaging modalities (i-CT and i-US), coupled with neuromonitoring, in the surgical management of vascular lesions, particularly if located in eloquent areas, has a positive impact on clinical outcome.
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Affiliation(s)
- Francesco Certo
- Department of Medical, Surgical Sciences and Advanced Technologies "G. F. Ingrassia," Neurological Surgery, Policlinico "Rodolico-San Marco" University Hospital, University of Catania, Catania, Italy.
| | - Roberto Altieri
- Department of Medical, Surgical Sciences and Advanced Technologies "G. F. Ingrassia," Neurological Surgery, Policlinico "Rodolico-San Marco" University Hospital, University of Catania, Catania, Italy
| | - Giovanni Grasso
- Department of Biomedicine, Neurosciences and Advanced Diagnostics (BiND), Neurosurgical Unit, Surgical Neuro-oncology Section, University of Palermo, Palermo, Italy
| | - Giuseppe M V Barbagallo
- Department of Medical, Surgical Sciences and Advanced Technologies "G. F. Ingrassia," Neurological Surgery, Policlinico "Rodolico-San Marco" University Hospital, University of Catania, Catania, Italy
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Hafez A, Koroknay-Pál P, Oulasvirta E, Elseoud AA, Lawton MT, Niemelä M, Laakso A. The Application of the Novel Grading Scale (Lawton-Young Grading System) to Predict the Outcome of Brain Arteriovenous Malformation. Neurosurgery 2019; 84:529-536. [PMID: 29733392 PMCID: PMC6331307 DOI: 10.1093/neuros/nyy153] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Accepted: 03/28/2018] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND A supplementary grading scale (Supplemented Spetzler-Martin grade, Supp-SM) was introduced in 2010 as a refinement of the SM system to improve preoperative risk prediction of brain arteriovenous malformations (AVMs). OBJECTIVE To determine the ability to predict surgical outcomes using the Supp-SM grading scale. METHODS This retrospective study was conducted on 200 patients admitted to the Helsinki University Hospital between 2000 and 2014. The validity of the Supp-SM and SM grading systems was compared using the area under the receiver operating characteristic (AUROC) curves, with respect to the change between preoperative and early (3-4 mo) as well as final postoperative modified Rankin Scale (mRS) scores. RESULTS The performance of the Supp-SM was superior to that of the SM grading scale in the early follow-up (3-4 mo): AUROC = 0.57 (95% confidence interval [CI]: 0.49-0.65) for SM and AUROC = 0.67 (95% CI: 0.60-0.75) for Supp-SM. The Supp-SM performance continued improving over SM at the late follow-up: AUROC = 0.63 (95% CI: 0.55-0.71) for SM and AUROC = 0.70 (95% CI: 0.62-0.77) for Supp-SM. The perforating artery supply, which is not part of either grading system, plays an important role in the early follow-up outcome (P = .008; odds ratio: 2.95; 95% CI: 1.32-6.55) and in the late follow-up outcome (P < .001; odds ratio: 5.89; 95% CI: 2.49-13.91). CONCLUSION The Supp-SM grading system improves the outcome prediction accuracy and is a feasible alternative to the SMS, even for series with higher proportion of high-grade AVMs. However, perforators play important role on the outcome.
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Affiliation(s)
- Ahmad Hafez
- Department of Neurosurgery, Helsinki University Hospital, Helsinki, Finland
| | - Päivi Koroknay-Pál
- Department of Neurosurgery, Helsinki University Hospital, Helsinki, Finland
| | - Elias Oulasvirta
- Department of Neurosurgery, Helsinki University Hospital, Helsinki, Finland
| | - Ahmed Abou Elseoud
- Department of Diagnostic Radiology, Helsinki University Hospital, Helsinki, Finland
| | - Michael T Lawton
- Department of Neurosurgery, Barrow Neurological Institute, Phoenix, Arizona
| | - Mika Niemelä
- Department of Neurosurgery, Helsinki University Hospital, Helsinki, Finland
| | - Aki Laakso
- Department of Neurosurgery, Helsinki University Hospital, Helsinki, Finland
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