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Intracranial Arteriovenous fistulas

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https://www.readbyqxmd.com/read/28917703/distally-enlarged-feeding-artery-phenomenon-in-intracranial-dural-arteriovenous-fistula-alternative-access-route-to-transarterial-intravenous-embolization-dong
#1
Hyun Shim, Jieun Roh, Jeong A Yeom, Young Soo Kim, Seung Kug Baik
BACKGROUND: Transvenous (TV) embolization is ideal for endovascular treatment of intracranial dural arteriovenous fistulas (DAVF). However, it is not always feasible because of various factors, and transarterial (TA) embolization could then be tried. We aimed to determine the incidence of 'distally enlarged feeding artery phenomenon' and the major feeding artery in DAVF. In case TV approach is difficult and this phenomenon observed, we could use this vessel for transarterial intravenous (TAIV) embolization as an endovascular treatment modality for DAVF...
September 13, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28904465/spectrum-of-visual-impairment-in-cerebral-venous-thrombosis-importance-of-tailoring-therapies-based-on-pathophysiology
#2
Sanjith Aaron, Anupriya Arthur, A T Prabakhar, Pavitra Mannam, N K Shyamkumar, Sunithi Mani, Vivek Mathew, Jeyanthi Peter, Ajith Sivadasan, Anika Alexander, M Karthik, Rohith Ninan Benjamin, Mathew Alexander
Visual impairment can complicate cerebral venous thrombosis (CVT). Here, we describe the various pathophysiological mechanisms and treatments available. A retrospective chart review of all patients treated for CVT in a large quaternary teaching hospital was done, and cases with visual impairment due to CVT were identified. The various mechanisms causing visual impairment in CVT were (1) raised intracranial pressure (ICP) caused by venous thrombosis without venous infarcts resulting in a benign intracranial hypertension-like presentation of CVT, (2) venous infarcts involving the occipital cortex, (3) raised ICP following the development of a secondary dural arteriovenous (AV) fistula, and (4) arterial occipital infarcts due to posterior cerebral artery compression secondary to herniation in large venous infarcts...
July 2017: Annals of Indian Academy of Neurology
https://www.readbyqxmd.com/read/28882716/remote-thoracic-myelopathy-from-a-spinal-dural-arteriovenous-fistula-at-the-cranio-cervical-junction-case-report-and-review-of-literature
#3
Michael J Lang, Stavropoula Tjoumakaris, Robert H Rosenwasser, Pascal Jabbour
BACKGROUND: The cranio-cervical junction is a rare location for spinal dural arteriovenous fistulas (dAVF). Typically, fistulas at this location present with findings related to intracranial cortical venous reflux or with cervical myelopathy. We present a case of cranio-cervical junction dAVF with isolated clinical and radiographic findings of thoracolumbar myelopathy. CASE DESCRIPTION: A 54 year-old male presented with subacute onset of lower extremity weakness, paresthesias and gait dysfunction...
September 4, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28868279/dural-arteriovenous-fistula-presenting-with-purely-contralateral-ophthalmic-manifestations
#4
Brandon J Baartman, Andrew Bauer, Ferdinand Hui, Lisa Lystad, Arun D Singh
PURPOSE: To report a case of dural arteriovenous fistula presenting with purely contralateral ophthalmic manifestations. DESIGN: Interventional case report. RESULTS: A 70-year-old male presenting with right-sided proptosis, injection, and choroidal effusions with a completely quiet fellow eye was found to have a left-sided dural arteriovenous fistula. After recognition on cerebral angiography, successful endovascular embolization was achieved, along with complete resolution of the contralateral ocular signs...
July 2017: Ocular Oncology and Pathology
https://www.readbyqxmd.com/read/28840082/the-potentiality-for-development-of-multiple-dural-arteriovenous-fistulas-after-ligation-of-the-internal-jugular-vein-a-case-report
#5
Hirotaka Fudaba, Takeshi Kubo, Makoto Goda, Kenji Sugita, Masaki Morishige, Kouhei Onishi, Keisuke Ishii, Mitsuhiro Anan, Yasuyuki Nagai, Minoru Fujiki
A 74-year-old male presented with an intracranial hemorrhage caused by multiple dural arteriovenous fistulas (DAVFs) in the left transverse sinus and right sigmoid sinus. Four months previously, the patient underwent tongue cancer removal with lymph node dissection and ligation of the right internal jugular vein. Endovascular embolization (transvenous and transarterial embolization) resulted in the complete disappearance of the fistulas. Follow-up angiography revealed new arteriovenous shunts at the superior sagittal sinus and right transverse sinus, and we treated the patient with staged transarterial embolization...
July 2017: NMC Case Rep J
https://www.readbyqxmd.com/read/28840070/embolization-of-a-spinal-dural-arteriovenous-fistula-with-ethylene-vinyl-alcohol-copolymer-onyx-using-a-dual-lumen-microballoon-catheter-and-buddy-wire-technique
#6
Ryuta Nakae, Masaya Nagaishi, Akio Hyodo, Kensuke Suzuki
BACKGROUND: N-butyl 2-cyanoacrylate (NBCA) remains the standard embolic agent for spinal dural arteriovenous fistula (SDAVF) treatment. Treatment of SDAVF with ethylene-vinyl alcohol copolymer (Onyx, ev3-Covidien, Irvine CA, USA) is currently not well established. Although several cases have reported the use of Onyx to embolize an intracranial dural arteriovenous fistula using a dual-lumen microballoon catheter, Onyx embolization of an SDAVF using a dual-lumen microballoon catheter has not been reported...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28830738/mastoid-epidermoid-tumor-and-associated-dural-arteriovenous-fistula-with-venous-sinus-occlusion
#7
Jang W Yoon, Youssef J Hamade, Ramon Navarro, Benjamin L Brown, Larry Lundy, Rabih G Tawk
BACKGROUND: Dural arteriovenous fistula (DAVF) is an abnormal vascular connection between arterial and venous channels within dura mater. Although DAVFs have been linked to other types of intracranial tumors, this is the first case reporting the association between DAVF and an epidermoid tumor. CASE DESCRIPTION: A middle aged patient with chronic headache presented with Borden type II DAVF draining into the right transverse sigmoid junction, and was also found to have an epidermoid tumor over the right mastoid...
August 19, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28780402/correlation-of-aggressive-intracranial-lesions-and-venous-reflux-patterns-in-dural-arteriovenous-fistulas
#8
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/28768818/sofia-intermediate-catheter-and-the-snake-technique-safety-and-efficacy-of-the-sofia-catheter-without-guidewire-or-microcatheter-construct
#9
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
#10
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/28720740/-tentorial-dural-arteriovenous-fistula-successfully-treated-with-transvenous-embolization-using-a-double-catheterization-technique-through-venous-drainage-a-case-report
#11
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/28676463/pial-dural-intracranial-arteriovenous-fistula-with-flow-associated-aneurysmal-rupture-case-report-with-review-of-literature-and-proposal-on-the-mechanism-of-hemorrhage-and-treatment-options
#12
Christopher Elia, Tanya Minasian, Mazen Noufal, Vaninder Chhabra
BACKGROUND: Vascular anomalies in the form of dural arteriovenous fistulas (DAVFs), arteriovenous malformations, and aneurysms are well described in the literature. Pial arteriovenous fistulas (PAVFs) are described to a lesser extent in the literature. When these anomalies are combined, diagnosis and treatment become complex. CASE DESCRIPTION: A 55-year-old man presented with PAVF/DAVF with a ruptured flow-related aneurysm in the distal left posterior inferior cerebellar artery, which required surgical clipping and disconnection...
September 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28645600/newly-detected-cervical-spinal-dural-arteriovenous-fistula-on-magnetic-resonance-angiography-causing-intracranial-subarachnoid-hemorrhage
#13
Hiroaki Matsumoto, Hiroaki Minami, Ikuya Yamaura, Yasuhisa Yoshida, Yutaka Hirata
BACKGROUND: Although an asymptomatic spinal dural arteriovenous fistula (SDAVF) can sometimes be incidentally detected on magnetic resonance imaging (MRI), there are no previous reports showing the development of an SDAVF on MRI or magnetic resonance angiography (MRA). CASE DESCRIPTION: A 64-year old man with unruptured vertebral artery dissection (VAD) developed a subarachnoid hemorrhage (SAH) during regular follow-up. Emergent endovascular coil internal trapping for the VAD was performed; however, angiography after the endovascular treatment showed a lower cervical SDAVF...
September 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28621628/gamma-knife-surgery-for-clival-epidural-osseous-dural-arteriovenous-fistulas
#14
Cheng-Chia Lee, Ching-Jen Chen, Shao-Ching Chen, Huai-Che Yang, Chung Jung Lin, Chih-Chun Wu, Wen-Yuh Chung, Wan-Yuo Guo, David Hung-Chi Pan, Cheng-Ying Shiau, Hsiu-Mei Wu
OBJECTIVE Clival epidural-osseous dural arteriovenous fistula (DAVF) is often associated with a large nidus, multiple arterial feeders, and complex venous drainage. In this study the authors report the outcomes of clival epidural-osseous DAVFs treated using Gamma Knife surgery (GKS). METHODS Thirteen patients with 13 clival epidural-osseous DAVFs were treated with GKS at the authors' institution between 1993 and 2015. Patient age at the time of GKS ranged from 38 to 76 years (median 55 years). Eight DAVFs were classified as Cognard Type I, 4 as Type IIa, and 1 as Type IIa+b...
June 16, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28567488/early-rebleeding-of-intracranial-dural-arteriovenous-fistulas-after-an-intracranial-hemorrhage
#15
Jai Ho Choi, Kyung Il Jo, Keon Ha Kim, Pyoung Jeon, Je Young Yeon, Jong Soo Kim, Seung Chyul Hong
BACKGROUND: The aim of this study was to evaluate the clinical and angiographic characteristics of dural arteriovenous fistulas (DAVF) presenting with intracranial hemorrhage (ICH), with a focus on early rebleeding according to the initial hemorrhage type. METHOD: The clinical and radiologic features of 21 dAVFs that presented with intracranial hemorrhage were retrospectively reviewed. The hemorrhage type was classified as pure intraparenchymal hemorrhage (pIPH) and subarachnoid or subdural hemorrhage with IPH (non-pIPH)...
August 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28559076/prenatal-diagnosis-and-multimodal-neonatal-treatment-of-a-rare-pial-arteriovenous-fistula-case-report-and-review-of-the-literature
#16
Alessandro Pedicelli, Marta Iacobucci, Paolo Frassanito, Emilio Lozupone, Gabriele Masselli, Concezio Di Rocco, Cesare Colosimo
BACKGROUND: Intracranial pial arteriovenous fistulas (PAVFs) are direct communications between the arterial and venous system of the brain, with the characteristic absence of a plexiform nidus, as seen in the classic cerebral arteriovenous malformations. These vascular malformations, usually occurring in the pediatric population, very rarely are diagnosed in utero, because of a lack of understanding of the condition and because they may be hard to visualize. CASE DESCRIPTION: We report a rare case of a mass-effect PAVF diagnosed with fetal magnetic resonance imaging, involving the right cerebral hemisphere, fed by a pericallosal artery and associated with a giant venous dilatation...
August 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28558378/pial-arteriovenous-fistula-and-capillary-malformation-arteriovenous-malformation-associated-with-rasa1-mutation-2-pediatric-cases-with-successful-surgical-management
#17
A Jessey Chugh, Asim Shahid, Sunil Manjila, Deepak Gulati, Nicholas C Bambakidis
We present case reports of 2 pediatric patients who were both found to have pial arteriovenous fistulas (AVFs) with subsequent genetic analysis revealing mutations in the RASA1 gene. Considering their family history of distinct cutaneous lesions, these mutations were likely inherited as opposed to de novo mutations. Patient 1 had large capillary malformations on the left side of the face and neck, associated with macrocephaly, and presented at the age of 32 months with speech delay, right-sided weakness, and focal seizures involving the right side of the body...
2017: Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28552162/epidemiology-clinical-presentation-diagnostic-evaluation-and-prognosis-of-cerebral-dural-arteriovenous-fistulas
#18
Mohamed Samy Elhammady, Sudheer Ambekar, Roberto C Heros
Dural arteriovenous fistulas are abnormal communications, within the dural leaflets, between meningeal arteries and dural venous sinuses and/or subarachnoid veins. Although many fistulas remain clinically silent and do not require treatment, presence of cortical venous reflux, intracranial bleed, and intolerable symptoms are the main indications for treatment. A thorough understanding of the natural history is of prime importance in the decision making and management of these lesions. In this chapter we discuss the epidemiology and natural history of intracranial dural arteriovenous fistulae...
2017: Handbook of Clinical Neurology
https://www.readbyqxmd.com/read/28552158/epidemiology-genetics-pathophysiology-and-prognostic-classifications-of-cerebral-arteriovenous-malformations
#19
Alp Ozpinar, Gustavo Mendez, Adib A Abla
Arteriovenous malformations (AVMs) are vascular deformities involving fistula formation of arterial to venous structures without an intervening capillary bed. Such anomalies can prove fatal as the high arterial flow can disrupt the integrity of venous walls, thus leading to dangerous sequelae such as hemorrhage. Diagnosis of these lesions in the central nervous system can often prove challenging as intracranial AVMs represent a heterogeneous vascular pathology with various presentations and symptomatology. The literature suggests that most brain AVMs (bAVMs) are identified following evaluation of the etiology of acute cerebral hemorrhage, or incidentally on imaging associated with seizure or headache workup...
2017: Handbook of Clinical Neurology
https://www.readbyqxmd.com/read/28552133/endovascular-management-of-intracranial-dural-arteriovenous-fistulas
#20
Celene B Mulholland, M Yashar S Kalani, Felipe C Albuquerque
Dural arteriovenous fistulas are a heterogeneous group of lesions that comprise 10-15% of intracranial vascular malformations. The treatment strategy is devised after careful consideration of the arterial supply, venous drainage, clinical presentation, and risk of progression, hemorrhage, or neurologic decline. With recent advancements in endovascular technology, the majority of dural arteriovenous fistulas can be treated with either transarterial or transvenous embolization. Those that cannot be fully treated by endovascular means are approached with either adjuvant surgery or radiotherapy...
2017: Handbook of Clinical Neurology
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