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Dural arteriovenous fistula

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https://www.readbyqxmd.com/read/28803169/stereotactic-radiosurgery-for-dural-arteriovenous-fistulas-without-cortical-venous-reflux
#1
Daniel A Tonetti, Bradley A Gross, Brian T Jankowitz, Kyle M Atcheson, Hideyuki Kano, Edward A Monaco, Ajay Niranjan, L Dade Lunsford
BACKGROUND: The rationale for treatment of dural arteriovenous fistulas (dAVF) without cortical venous reflux is symptomatic resolution. Most studies of dural arteriovenous fistula treatment, including those for stereotactic radiosurgery (SRS), have focused on angiographic obliteration instead of clinical symptomatic outcome. METHODS: The authors evaluated their institutional experience with SRS for cerebral dAVFs without cortical venous reflux from 1991 to 2016, evaluating angiographic and clinical outcomes, focusing on the course of pulsatile tinnitus and/or ocular symptoms after treatment...
August 9, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28802521/midterm-follow-up-of-20-consecutive-patients-with-nonaneurysmal-subarachnoid-hemorrhage-of-unknown-origin-in-a-single-center-two-cases-of-de-novo-development-of-dural-arteriovenous-fistula
#2
Tomotaka Ohshima, Yosuke Tamari, Taiki Yamamoto, Shunsaku Goto, Kojiro Ishikawa
BACKGROUND AND PURPOSE: The mechanisms and prognosis of underlying subarachnoid hemorrhage of unknown origin remain unclear. Previous investigators have suggested a relationship between nonaneurysmal perimesencephalic subarachnoid hemorrhage and venous abnormalities like a primitive venous drainage of the basal vein of Rosenthal. We report the outcome of a midterm follow-up of 20 consecutive patients with nonaneurysmal subarachnoid hemorrhage of unknown origin, and 2 patients in whom the development of new dural arteriovenous fistulas after subarachnoid hemorrhage of unknown origin were detected during follow-up...
August 10, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28801711/safety-of-onyx-transarterial-embolization-of-skull-base-dural-arteriovenous-fistulas-from-meningeal-branches-of-the-external-carotids-also-fed-by-meningeal-branches-of-internal-carotid-or-vertebral-arteries
#3
Thiago G Abud, Emmanuel Houdart, Jean-Pierre Saint-Maurice, Daniel G Abud, Carlos E Baccin, Andrew D Nguyen, Nitamar Abdala
PURPOSE: To analyze the angiographic and clinical results of transarterial embolization with Onyx (Medtronic-Covidien, Irvine, CA) in dural arteriovenous fistulas (DAVFs) partially fed by arteries arising from the carotid siphon or the vertebral arteries. METHODS: We isolated 40 DAVFs supplied by either the tentorial artery of the internal carotid artery (ICA) or the posterior meningeal artery of the vertebral artery. These DAVFs were embolized with Onyx through the middle meningeal artery or the occipital artery...
August 11, 2017: Clinical Neuroradiology
https://www.readbyqxmd.com/read/28790216/-a-case-of-tentorial-dural-arteriovenous-fistula-treated-with-transvenous-embolization-using-nbca
#4
Hirokazu Nishiyama, Hiroyuki Matsumoto, Yoshiaki Tetsuo, Hideki Takemoto, Naoyuki Nakao
We report a case of tentorial dural arteriovenous fistula(dAVF)treated with transarterial and transvenous embolization using n-butyl-2-cyanoacrylate(NBCA). A 70-year-old man presented with dysarthria and trunk ataxia. Computed tomography(CT)on admission revealed right cerebellar hemorrhage. Right external carotid angiography demonstrated a tentorial dAVF fed by the marginal tentorial artery, petrosquamous branch of the middle meningeal artery, ascending pharyngeal artery, and artery of foramen rotundum. Right internal carotid angiography demonstrated a shunt fed by the meningohypophyseal trunk...
August 2017: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/28780588/spontaneous-resolution-of-low-flow-spinal-arteriovenous-fistulas
#5
Joe Kang, Lydia Gregg, Philippe Gailloud
PURPOSE: Spinal vascular anomalies with arteriovenous blood shunting include spinal arteriovenous malformations (SAVMs) and spinal arteriovenous fistulas (SAVFs), which are distinguished by the presence or absence of an interposed nidus. SAVFs can be further characterized based on their location (perimedullary, dural, or extradural) and flow pattern (high-flow versus low-flow shunts). The spontaneous resolution of a spinal vascular malformation, i.e., the complete disappearance-in the absence of therapeutic measures-of a lesion previously identified by angiography, seems to represent an exceptional phenomenon...
August 5, 2017: Neuroradiology
https://www.readbyqxmd.com/read/28780402/correlation-of-aggressive-intracranial-lesions-and-venous-reflux-patterns-in-dural-arteriovenous-fistulas
#6
Lei Huang, Liang Ge, Gang Lu, Daoying Geng, Xiaolong Zhang, Wenjie Cao
OBJECTIVE: The association between venous reflux patterns with aggressive intracranial lesions (AILs) including intracranial edema (IE), intraparenphymal hemorrhage (IPH) and subarachnoid hemorrhage (SAH) has not been well established in cranial dural arteriovenous fistulas (DAVFs). We aimed to propose an updated classification system using venous drainage. MATERIALS AND METHODS: We retrospectively assessed the catheter angiographic findings of venous drainage patterns...
August 2, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28774761/degree-and-duration-of-functional-improvement-on-long-term-follow-up-of-spinal-dural-arteriovenous-fistulae-occluded-by-endovascular-and-surgical-treatment
#7
Andrew J Durnford, Jonathan Hempenstall, Ahmed R Sadek, Jonathan Duffill, Nijaguna Mathad, John Millar, Owen C Sparrow, Diederik O Bulters
BACKGROUND: Long-term outcome following occlusion of spinal dural arteriovenous fistulas (SDAVF) is poorly understood and based on small series reporting predominantly short-term outcome. It is unclear what degree of improvement occurs and is sustained. We describe long-term outcome following occlusion. METHODS: Single centre cohort study of SDAVF patients identified from a prospective database. Outcome assessed by modified Aminoff and Logue disability scales, modified Rankin scale (mRS) and patient reported outcomes at presentation and long-term follow-up...
July 31, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28768818/sofia-intermediate-catheter-and-the-snake-technique-safety-and-efficacy-of-the-sofia-catheter-without-guidewire-or-microcatheter-construct
#8
Jeremy J Heit, Johnny Hy Wong, Adrienne M Mofaff, Nicholas A Telischak, Robert L Dodd, Michael P Marks, Huy M Do
BACKGROUND: Neurointerventional surgeries (NIS) benefit from supportive endovascular constructs. Sofia is a soft-tipped, flexible, braided single lumen intermediate catheter designed for NIS. Sofia advancement from the cervical to the intracranial circulation without a luminal guidewire or microcatheter construct has not been described. OBJECTIVE: To evaluate the efficacy and safety of the new Sofia Non-wire Advancement techniKE (SNAKE) for advancement of the Sofia into the cerebral circulation...
August 2, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28757759/treating-intracranial-dural-arteriovenous-fistulas-with-gamma-knife-radiosurgery-a-single-center-experience
#9
Guan-Chyuan Wang, Kuan-Pin Chen, Tsung-Lang Chiu, Chain-Fa Su
OBJECTIVE: We evaluated the effectiveness and safety of gamma knife radiosurgery (GKRS) for the treatment of intracranial dural arteriovenous fistulas (dural AVFs) over the past 10 years. MATERIALS AND METHODS: The records of 21 patients diagnosed with dural AVFs between 2004 and 2014 and treated with GKRS were reviewed retrospectively. Complete obliteration (CO) was defined as total symptom relief plus confirmation through magnetic resonance imaging or conventional angiography...
January 2017: Ci Ji Yi Xue za Zhi, Tzu-chi Medical Journal
https://www.readbyqxmd.com/read/28739568/posterior-meningeal-artery-dmso-injection-resulting-in-reproducible-asystole-prior-to-onyx-therapy-of-a-dural-arteriovenous-fistula-a-previously-undescribed-variant-of-the-trigeminocardiac-reflex-or-a-new-phenomenon
#10
Matthew Thomas Crockett, Anthony Ernest Robinson, Harmeet Aneja, Timothy John Phillips
We describe a case of reproducible asystole during endovascular treatment of a posterior fossa dural arteriovenous fistula. Catheterisation of the posterior meningeal artery, a branch of the vertebral artery in this patient, followed by dimethyl sulfoxide injection prior to Onyx administration resulted in two episodes of asystole.To the best of our knowledge, this is the first reported case of asystole occurring during endovascular intervention in the posterior meningeal artery. This may represent a previously undescribed variant of the trigemino-cardiac reflex (TGCR) caused by chemical stimulation of small areas of trigeminally innervated posterior fossa dura...
July 24, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28729296/analysis-of-30-spinal-angiograms-falsely-reported-as-normal-in-18-patients-with-subsequently-documented-spinal-vascular-malformations
#11
P Barreras, D Heck, B Greenberg, J-P Wolinsky, C A Pardo, P Gailloud
BACKGROUND AND PURPOSE: The early diagnosis of spinal vascular malformations suffers from the nonspecificity of their clinical and radiologic presentations. Spinal angiography requires a methodical approach to offer a high diagnostic yield. The prospect of false-negative studies is particularly distressing when addressing conditions with a narrow therapeutic window. The purpose of this study was to identify factors leading to missed findings or inadequate studies in patients with spinal vascular malformations...
July 20, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28720741/-transvenous-embolization-by-direct-puncture-of-the-superior-sagittal-sinus-using-indocyanine-green-icg-videoangiography-for-treatment-of-dural-arteriovenous-fistula-of-the-transverse-sigmoid-sinus-a-case-report
#12
Jo Matsuzaki, Kenichi Kono, Arisa Umesaki, Yojiro Kashimura, Hiroaki Matsumoto, Tomoaki Terada
We report a case of dural arteriovenous fistula at the left transverse sinus and sigmoid sinus(TS-dAVF), which was treated with transvenous embolization(TVE)by direct puncture of the superior sagittal sinus(SSS)under indocyanine green(ICG)fluoroscopic guidance. A 71-year-old woman presented with pulsatile tinnitus and progressive dementia. A left TS-dAVF with retrograde SSS and cortical venous reflux(Cognard type IIb)was demonstrated on cerebral angiography. The left internal jugular vein and distal portion of the right transverse sinus were occluded...
July 2017: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/28720740/-tentorial-dural-arteriovenous-fistula-successfully-treated-with-transvenous-embolization-using-a-double-catheterization-technique-through-venous-drainage-a-case-report
#13
Akira Yamakawa, Atsushi Fujita, Hirotomo Tanaka, Mitsuru Ikeda, Masashi Morikawa, Eiji Kohmura
BACKGROUND: Tentorial dural arteriovenous fistulas(dAVFs)are a rare clinical entity accounting for less than 10% of all intracranial dAVFs. Because these lesions are characterized by high hemorrhagic risk, aggressive treatment should be considered. Although the number of reported cases treated with endovascular transarterial embolization(TAE)using glue has been increasing, little is known about the transvenous approach. Here, we report the case of a patient with a tentorial dAVF who was successfully treated with transvenous embolization(TVE)through venous drainage using a double catheterization technique...
July 2017: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/28716281/-black-butterfly-sign-on-t2-weighted-and-susceptibility-weighted-imaging-a-novel-finding-of-chronic-venous-congestion-of-the-brain-stem-and-spinal-cord-associated-with-dural-arteriovenous-fistulas
#14
Mikako Enokizono, Noriko Sato, Minoru Morikawa, Yukio Kimura, Atsuhiko Sugiyama, Tomoko Maekawa, Daichi Sone, Daiki Takewaki, Tomoko Okamoto, Yuji Takahashi, Nobutaka Horie, Takayuki Matsuo
A dural arteriovenous fistula (DAVF) with spinal perimedullary venous drainage can cause progressive myelopathy, and it is sometimes incorrectly diagnosed as another spinal cord disease. Here we report the cases of three individuals with a DAVF (one craniocervical junction DAVF and two tentorial DAVFs) with progressive myelopathy showing unique magnetic resonance (MR) imaging findings. MR T2*WI or susceptibility-weighted imaging (SWI) demonstrated symmetrical dark signal intensity lesions predominantly in the dorsal aspect of medulla and the central gray matter of cervical spinal cord that showed the "black butterfly" silhouette...
August 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28711532/an-intraoperative-look-at-a-residual-recurrent-tentorial-dural-arteriovenous-fistula
#15
Bradley A Gross, Andrew F Ducruet, Brian T Jankowitz, Paul A Gardner
BACKGROUND: Dural arteriovenous fistulas (dAVFs) often are treated via transarterial or transvenous embolization. Incomplete penetration of the draining vein/occult residual often will become apparent on follow-up angiography, requiring repeat embolization, or at times, surgical resection. CASE DESCRIPTION: A 41-year-old woman presented with cerebellar hemorrhage from a tentorial dAVF treated with transvenous coil embolization. Follow-up angiography disclosed a residual/recurrent fistula treated with transvenous Onyx embolization...
July 12, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28702116/management-of-aggressive-cerebral-dural-arteriovenous-fistulae-experience-using-endovascular-embolization
#16
Rajeev Sivasankar, Raju Augustine George, Rochan Pant, Samresh Sahu, Rohit Aggarwal, Aftab Alam
No abstract text is available yet for this article.
June 2017: Journal of Vascular and Interventional Neurology
https://www.readbyqxmd.com/read/28702115/staged-arterial-and-venous-embolizations-in-treatment-of-type-iv-intraosseous-dural-arteriovenous-fistula
#17
Aleksandra V Betcher, Andrew W Schnure, Paul H Janda, Rajneesh Agrawal, Amandeep Dhillon
OBJECTIVE: This is a case report of an adult male with complex type IV intraosseous DAVF causing severe venous hypertension and bony destruction, presenting with severe hemotympanum, and a novel way of staged arterial and venous embolizations to treat the emergent symptoms. METHODS: First and second stages were direct selective arterial embolizations using Onyx liquid agent. Goal was to reduce flow into the fistula by embolizing the feeder branch and distal penetration of the nidus with Onyx...
June 2017: Journal of Vascular and Interventional Neurology
https://www.readbyqxmd.com/read/28698085/modified-park-bench-position-for-superior-vermian-arteriovenous-malformations-and-dural-fistulas
#18
Rouzbeh Motiei-Langroudi, Christoph J Griessenauer, Abdulrahman Y Alturki, Paul H Chapman, Christopher S Ogilvy, Ajith J Thomas
OBJECTIVES: Arteriovenous malformations (AVMs) of the superior cerebellar vermis and dural arteriovenous fistulas (dAVFs) draining into tentorial venous structures are uncommon lesions. Various surgical approaches and positions have been used to gain access. METHODS: We present our experience with 10 superior vermian AVMs and 3 dAVFs with retrograde transverse sinus or torcular drainage, each resected through a supracerebellar infratentorial approach in park bench position with modification of the neck and head position (vertex tilt-up instead of down)...
July 8, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28690870/spinal-dural-arteriovenous-fistula-a-case-series-and-review-of-imaging-findings
#19
Shandy Fox, Luke Hnenny, Uzair Ahmed, Kotoo Meguro, Michael E Kelly
INTRODUCTION: Spinal dural arteriovenous fistulae (sdAVF) are rare lesions. Patients typically present with slowly progressive myelopathy that is often mistaken for degenerative cervical or lumbar stenosis. On spinal magnetic resonance imaging (MRI), multisegmental T2 hyperintensities along with associated flow voids are pathognomonic of sdAVF. However, diagnosis can be difficult. Definitive diagnosis and localization is achieved with complete spinal angiography. Treatment options include open surgical ligation, endovascular embolization or multimodality treatment...
2017: Spinal Cord Series and Cases
https://www.readbyqxmd.com/read/28684369/concomitant-lumbosacral-perimedullary-arteriovenous-fistula-and-spinal-dural-arteriovenous-fistula
#20
Jingwei Li, Guilin Li, Lisong Bian, Tao Hong, Jiaxing Yu, Hongqi Zhang, Feng Ling
BACKGROUND: Although multifocal spinal arteriovenous malformations (AVMs) have been reported before, the present case is the first case of 2 different types, including 1 perimedullary arteriovenous fistula and 2 spinal dural arteriovenous fistulas of lumbosacral AVMs, coexisting in 1 patient. We also report the use of hybrid techniques in treatment of concomitant lumbosacral spinal AVMs. CASE DESCRIPTION: A 65-year-old man presented with a 4-year history of progressive sensory, motor, and sphincter dysfunction...
July 4, 2017: World Neurosurgery
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