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Brain arteriovenous malformation

Maxime Bretonnier, Pierre-Louis Henaux, Xavier Morandi, Pierre-Jean Le Reste
Brain arteriovenous malformations (AVM) are complex and highly challenging lesions, for which intra-operative indocyanin green fluorescence video angiography is widely used. Fluorescein video angiography (FVA) recently appeared as an alternative technique but the feasibility and usefulness of this technique is yet uncertain. This short series reports our preliminary experience of FVA in intracranial AVM surgery. We retrospectively studied the cases of seven patients who had FVA for an AVM surgery. The primary objective of this study was to assess the utility of FVA as judged by the surgeon...
March 17, 2018: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
Suresh Giragani, Santhosh Kumar Pavunesan, Anandh Balasubramaniam
Cerebral proliferative angiopathy (CPA) is a rare vascular abnormality and separate from "classical" brain arteriovenous malformations. Haemorrhage due to proliferative angiopathy is rarely reported. We describe the clinical features, imaging findings and targeted endovascular management for a 12-year-old boy having proliferative angiopathy of the posterior fossa presenting with haemorrhage. Targeted endovascular embolisation in CPA is not previously described in the literature. The optimal treatment options for haemorrhagic CPA are debatable, and we wish to highlight the role of targeted treatment for culprit focal lesion demonstrable on imaging...
January 1, 2018: Interventional Neuroradiology
Furkan Diren, Serra Sencer, Tayfun Hakan
Objective: Arteriovenous malformation (AVM) is the most common form of intracranial vascular malformations in adults. Intracranial pediatric AVMs are rare. AVM located in the vicinity of the brain stem in children are even more rare. Case report: This study reports a rare case of acute obstructive hydrocephalus following aqueductal stenosis caused by an unruptured grade IV perimesencephalic arteriovenous malformation. An 11-year-old boy admitted to the hospital with progressive headache, nausea and vomiting throughout a month...
2018: Open Neuroimaging Journal
Michael Kerin Morgan, Mathew Guilfoyle, Ramez Kirollos, Gillian Z Heller
BACKGROUND: Avoiding the risk of postoperative hemorrhage after brain arteriovenous malformation (AVM) resection involves aggressive blood pressure control. Remodeling of the feeding arterial system is critical in reducing this risk. OBJECTIVE: To investigate factors predicting time to return to normal on digital subtraction angiography (DSA) after AVM resection. METHODS: For AVM in which the largest feeding artery (FA) on DSA was in the anterior circulation, the preoperative and postoperative diameter of the FA were compared with the diameter of the internal carotid artery (IC) immediately proximal to the posterior communicating artery...
March 12, 2018: Neurosurgery
Haruhiko Shiiya, Yasuhiro Suzuki, Shigeo Yamazaki, Kichizo Kaga
BACKGROUND: Pulmonary arteriovenous malformations (PAVMs) can be associated with life-threatening complications such as paradoxical embolization, cerebral abscess, and hemothorax. Therefore, all adults with PAVMs should be offered treatment. Percutaneous transcatheter embolization is the first-line treatment, but 5-25% of cases require further treatment due to persistence after embolization. Recently, the role of minimally invasive thoracic surgery as a definitive treatment has been evaluated...
March 12, 2018: Surgical Case Reports
David Yuen Chung Chan, Danny Tat Ming Chan, Cannon Xian Lun Zhu, Patricia Kwok Yee Kan, Amelia Yikjin Ng, Yi-Pin Sonia Hsieh, Jill Abrigo, Wai Sang Poon, George Kwok Chu Wong
Treatment of arteriovenous malformations (AVM) located at the eloquent area has been a challenge. Awake brain mapping allows identification of a non-eloquent gyrus for intervention and can potentially facilitate resection with preservation of functions. An alternative treatment option is stereotactic radiosurgery (SRS). The objective of this study was to perform a qualitative comparison of the treatment outcome of awake AVM excision versus SRS. We conducted a 13-year retrospective review of AVM excision under awake craniotomy performed at Prince of Wales Hospital, Hong Kong, from 2003 to 2016...
March 9, 2018: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
Elias Oulasvirta, Päivi Koroknay-Pál, Ahmad Hafez, Ahmed Abou Elseoud, Hanna Lehto, Aki Laakso
BACKGROUND: Population-based long-term data on pediatric patients with cerebral arteriovenous malformations (AVMs) are limited. OBJECTIVE: To clarify the characteristics and long-term outcome of pediatric patients with AVM. METHODS: A retrospective analysis was performed on 805 consecutive brain AVM patients admitted to a single center between 1942 and 2014. The patients were defined as children if they were under 18 yr at admission. Children were compared to an adult cohort...
March 5, 2018: Neurosurgery
Jing Yu, Ning Xu, Ying Zhao, Jinlu Yu
The anterior choroidal artery (AChA) is a critical artery in brain physiology and function. The AChA is involved in many diseases, including aneurysm, brain infarct, Moyamoya disease (MMD), brain tumor, arteriovenous malformation (AVM), etc. The AChA is vulnerable to damage during the treatment of these diseases and is thus a very important vessel. However, a comprehensive systematic review of the importance of the AChA is currently lacking. In this study, we used the PUBMED database to perform a literature review of the AChA to increase our understanding of its role in neurophysiology...
2018: International Journal of Medical Sciences
Mengqi Dong, Guangzhong Chen, Jianyi Li, Kun Qin, Xiaowen Ding, Chao Peng, Dong Zhou, Xiaofeng Lin
BACKGROUND: To fabricate three-dimensional (3D) models of brain arteriovenous malformation (bAVM) and report our experience with customized 3D printed models of patients with bAVM as an educational and clinical tool for patients, doctors, and surgical residents. METHODS: Using computerized tomography angiography (CTA) or digital subtraction angiography (DSA) images, the rapid prototyping process was completed with specialized software and "in-house" 3D printing service...
January 2018: Medicine (Baltimore)
Biljana Milatović, Jovica Saponjski, Haris Huseinagić, Mirza Moranjkić, Svetlana Milošević Medenica, Ivan Marinković, Igor Nikolić, Slobodan Marinkovic
BACKGROUND: Identification and anatomic features of the feeding arteries of the arteriovenous malformations (AVMs) is very important due to neurologic, radiologic, and surgical reasons. MATERIALS AND METHODS: Seventy-seven patients with AVMs were examined by using a digital subtraction angiographic (DSA) and computerized tomographic (CT) examination, including 3D reconstruction of the brain vessels. In addition, the arteries of 4 human brain stems and 8 cerebral hemispheres were microdissected...
March 3, 2018: Folia Morphologica (Warsz)
(no author information available yet)
No abstract text is available yet for this article.
January 1, 2018: International Journal of Stroke: Official Journal of the International Stroke Society
Nicholas T Gamboa, Evan J Joyce, Ilyas Eli, Min S Park, Philipp Taussky, Richard H Schmidt, Jamie McDonald, Kevin J Whitehead, M Yashar S Kalani
Hereditary hemorrhagic telangiectasia (HHT) is characterized by recurrent spontaneous epistaxis, mucocutaneous telangiectases, and multisystem arteriovenous malformations (AVMs). Brain AVMs typically present at birth and are identified in approximately 10-20% of patients with HHT. A retrospective review was undertaken of all HHT patients with known single or multiple brain AVMs treated at our institution. Thirty-nine patients with brain AVM(s) were diagnosed with HHT. Most patients presented with at least one Curaçao criterion...
February 23, 2018: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
Eugen Boltshauser
No abstract text is available yet for this article.
February 26, 2018: Neuropediatrics
Ali Tayebi Meybodi, Michael T Lawton
Brain arteriovenous malformations (bAVM) are challenging lesions. Part of this challenge stems from the infinite diversity of these lesions regarding shape, location, anatomy, and physiology. This diversity has called on a variety of treatment modalities for these lesions, of which microsurgical resection prevails as the mainstay of treatment. As such, outcome prediction and managing strategy mainly rely on unraveling the nature of these complex tangles and ways each lesion responds to various therapeutic modalities...
February 23, 2018: Journal of Neurosurgical Sciences
Michael K Morgan, Gillian Z Heller
BACKGROUND: There is uncertainty of the benefit of preoperative embolization for Spetzler- Ponce Class (SPC) B and C arteriovenous malformations of the brain (bAVM). We examined whether or not preoperative embolization reduces the risk of permanent neurological deficits in SPC B and C bAVM surgery. METHODS: A prospective bAVM database (between1989 and 2015) was analyzed by regression for factors associated with a new permanent neurological deficit arising as a consequence of surgery or preoperative embolization with a modified Rankin Scale (mRS) score >1 at 12 months after surgery (adverse outcome)...
February 23, 2018: Journal of Neurosurgical Sciences
Steven Kroon, Repke J Snijder, Marie E Faughnan, Hans-Jurgen Mager
PURPOSE OF REVIEW: Hereditary hemorrhagic telangiectasia (HHT) is an autosomal dominant inherited disease characterized by telangiectasia and arteriovenous malformations (AVMs). To date, five genetic types of HHT and one combined juvenile polyposis syndrome and HHT are known. Clinical and genetic screening of patients suspected with HHT is recommended to confirm the diagnosis and to prevent complications associated with HHT. The aim of this article is to give an overview of the evidence and to formulate a recommendation for clinicians concerning screening for HHT...
February 20, 2018: Current Opinion in Pulmonary Medicine
Xianli Lv, Guihuai Wang
Objective A small number of patients has been reported to develop a completely new or de novo arteriovenous malformation (AVM) after brain surgery, haemorrhage, head trauma or ischaemic stroke. The natural history of these lesions is unknown. In this review, both ruptured and unruptured de novo AVMs and their treatments were reviewed. Methods Published literature in the PubMed database citing 'de novo cerebral arteriovenous malformation' was reviewed. Additional studies were identified through reference searches in each reviewed article...
January 1, 2018: Neuroradiology Journal
Ramon Torné, Luis Reyes, Ana Rodríguez-Hernández, Xabier Urra, Luís Sanroman, Joaquim Enseñat
No abstract text is available yet for this article.
February 17, 2018: World Neurosurgery
Xiang Zou, Zehan Wu, Jun Huang, Peixi Liu, Xuanfeng Qin, Liang Chen, Wei Zhu, Yao Zhao, Peiliang Li, Jianping Song, Guo-Yuan Yang, Ying Mao
BACKGROUND: The molecular mechanism of brain arteriovenous malformation (BAVM) is largely unknown. Intracranial venous hypertension (VH) may enhance focal angiogenesis and promote BAVM development and progression. A rat VH model effectively simulates the hemodynamic microenvironment of this disease. OBJECTIVE: To explore the effect of doxycycline in VH-related angiogenesis, as well as the role of matrix metalloproteinase-3 (MMP-3) and other molecular factors. METHODS: A rat VH model was generated by common carotid artery and distal external jugular vein anastomosis...
February 16, 2018: Neurosurgery
Michela Lupo, Giusy Olivito, Libera Siciliano, Marcella Masciullo, Marco Bozzali, Marco Molinari, Maria Leggio
Cerebellar dysfunction plays a critical role in neurodevelopmental disorders with long-term behavioral and neuropsychiatric symptoms. A 43-year-old woman with a cerebellum arteriovenous malformation and history of behavioral dysregulation since childhood is described. After the rupture of the cerebellar malformation in adulthood, her behavior morphed into specific psychiatric symptoms and cognitive deficits occurred. The neuropsychological assessment evidenced impaired performance in attention, visuospatial, memory, and language domains...
February 19, 2018: Cerebellum
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