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Intracranial Arteriovenous fistulas

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https://www.readbyqxmd.com/read/29780232/cerebral-arteriovenous-malformations-in-the-era-of-embolization-for-angiographic-cure-a-single-center-experience-in-egypt
#1
Mohamed K Elewa
Background: Embolization for cerebral arteriovenous malformations (AVMs) has evolved in the last decade with evolution in both equipment and material. Embolization targets have expanded to include angiographic cure. Methods: To discuss the technical and management outcomes of our first cerebral AVM case series treated with embolization. The clinical, angiographic, treatment, and outcome variables of consecutive cerebral arteriovenous malformation cases, treated with curative embolization, between January 2011 and June 2017 in one regional center, were retrospectively analyzed...
2018: The Egyptian journal of neurology, psychiatry and neurosurgery
https://www.readbyqxmd.com/read/29777886/stereotactic-radiosurgery-for-high-grade-intracranial-dural-arteriovenous-fistulas
#2
Ching-Jen Chen, Thomas J Buell, Joshua Diamond, Dale Ding, Jeyan S Kumar, Davis G Taylor, Cheng-Chia Lee, Jason P Sheehan
OBJECTIVE: Factors associated with favorable outcome following stereotactic radiosurgery (SRS) for dural arteriovenous fistulas (DAVFs) with cortical venous reflux (CVR) are incompletely understood. The aim of this retrospective cohort study is to assess the outcomes after SRS for high-grade DAVFs and identify predictors. METHODS: We performed a retrospective review of consecutive patients with high-grade DAVFs, defined as the presence of CVR, who underwent SRS between 1989 and 2017...
May 16, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29765395/progressive-neurological-decline-with-deep-bilateral-imaging-changes-a-protean-presentation-of-dural-arteriovenous-fistulae
#3
Rene A Colorado, Marcelo Matiello, Hyun-Sik Yang, James D Rabinov, Aman Patel, Joshua A Hirsch, Ram Chavali, Thabele M Leslie-Mazwi
Intracranial dural arteriovenous fistulae (DAVF) within the deep cerebral vasculature are diagnostically challenging because of their variable clinical presentation and typical bilateral neuroimaging findings mimicking inflammatory, infectious, and metabolic processes. Increasingly, reports have emerged highlighting the diagnostic and treatment challenges of these lesions and their associated high morbidity and rapid clinical deterioration when untreated. We describe here a case series of 4 patients with deep cerebral DAVF who presented with impaired arousal or memory and behavioral changes...
April 2018: Interventional Neurology
https://www.readbyqxmd.com/read/29742722/arterial-spin-labeling-mr-imaging-aids-to-identify-cortical-venous-drainage-of-dural-arteriovenous-fistulas
#4
Ji Hee Kang, Tae Jin Yun, Jong Kook Rhim, Young Dae Cho, Dong Hyun Yoo, Roh-Eul Yoo, Koung Mi Kang, Seung Hong Choi, Ji-Hoon Kim, Chul-Ho Sohn, Moon Hee Han
Cortical venous drainage (CVD) increases the probability of intracranial hemorrhage and mortality rate of dural arteriovenous fistulas (DAVF). Although digital subtraction angiography (DSA) is the most accurate method to determine CVD in DAVFs, this modality has limitations due to its invasive nature and radiation issues. The purpose of this study was to evaluate the diagnostic utility of arterial spin-labeling perfusion-weighted images (ASL-PWI) to identify CVD in patients with DAVF.The Institutional Review Board of our hospital approved this retrospective study...
May 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29729465/the-procedure-related-complications-of-transarterial-onyx-embolization-of-dural-arteriovenous-fistula-using-transvenous-balloon-protection
#5
Feng Guo, Yupeng Zhang, Shikai Liang, Fei Liang, Peng Yan, Chuhan Jiang
OBJECTIVE: Transarterial embolizatioin with transvenous balloon protection has been described as a promising technique for intracranial dural arteriovenous fistula. The aim of our study was to report our preliminary experiences of this technique with regard to its safety and efficacy, emphasize the procedure-related complications. METHODS: Fourteen consecutive patients with DAVF were treated with transvenous balloon assisted technique between March 2014 and November 2017...
May 2, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29726736/dural-arteriovenous-fistula-of-the-lateral-foramen-magnum-region-a-review
#6
Chao Li, Jing Yu, Kailing Li, Kun Hou, Jinlu Yu
The lateral foramen magnum region is defined as the bilateral occipital area that runs laterally up to the jugular foramen. The critical vasculatures of this region are not completely understood. Dural arteriovenous fistulas that occur in this region are rare and difficult to treat. Therefore, we searched PubMed to identify all relevant previously published English language articles about lateral foramen magnum dural arteriovenous fistulas, and we performed a review of this literature to increase understanding about these fistulas...
January 1, 2018: Interventional Neuroradiology
https://www.readbyqxmd.com/read/29686166/-percutaneous-transluminal-sinus-stenting-for-sigmoid-sinus-stenosis-associated-with-transverse-sigmoid-sinus-dural-arteriovenous-fistula-a-case-report
#7
Yoshiaki Tetsuo, Hiroyuki Matsumoto, Hirokazu Nishiyama, Hideki Takemoto, Naoyuki Nakao
We report a case of transverse sinus-sigmoid sinus dural arteriovenous fistula(T-S dAVF)with venous flow congestion, which was accompanied by sigmoid sinus stenosis and treated with percutaneous transluminal sinus stenting. A 76-year-old woman presented with dementia and disturbance of consciousness. Magnetic resonance imaging(MRI)on admission revealed subcortical edema in the left occipital lobe and angiography demonstrated a left T-S dAVF with right transverse sinus occlusion and sigmoid sinus stenosis. Hemodynamics of the shunt flow from several feeders demonstrated retrograde flow to the straight sinus and superior sagittal sinus, and antegrade flow into the left internal jugular vein...
April 2018: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/29674324/indications-for-the-performance-of-intracranial-endovascular-neurointerventional-procedures-a-scientific-statement-from-the-american-heart-association
#8
REVIEW
Clifford J Eskey, Philip M Meyers, Thanh N Nguyen, Sameer A Ansari, Mahesh Jayaraman, Cameron G McDougall, J Kevin DeMarco, William A Gray, David C Hess, Randall T Higashida, Dilip K Pandey, Constantino Peña, Hermann C Schumacher
Intracranial endovascular interventions provide effective and minimally invasive treatment of a broad spectrum of diseases. This area of expertise has continued to gain both wider application and greater depth as new and better techniques are developed and as landmark clinical studies are performed to guide their use. Some of the greatest advances since the last American Heart Association scientific statement on this topic have been made in the treatment of ischemic stroke from large intracranial vessel occlusion, with more effective devices and large randomized clinical trials showing striking therapeutic benefit...
April 19, 2018: Circulation
https://www.readbyqxmd.com/read/29660065/in-reply-angio-architectural-features-of-high-grade-intracranial-dural-arteriovenous-fistulas-correlation-with-aggressive-clinical-presentation-and-hemorrhagic-risk
#9
https://www.readbyqxmd.com/read/29660030/letter-angio-architectural-features-of-high-grade-intracranial-dural-arteriovenous-fistulas-correlation-with-aggressive-clinical-presentation-and-hemorrhagic-risk
#10
Sandra A Cornelissen, Leonard L L Yeo, Michael Söderman
No abstract text is available yet for this article.
April 11, 2018: Neurosurgery
https://www.readbyqxmd.com/read/29624150/frequency-and-characteristics-associated-with-inherited-thrombophilia-in-patients-with-intracranial-dural-arteriovenous-fistula
#11
Sara C LaHue, Helen Kim, Ludmila Pawlikowska, Jeffrey Nelson, Daniel L Cooke, Steven W Hetts, Vineeta Singh
OBJECTIVE The pathogenesis of dural arteriovenous fistulas (DAVFs) remains poorly defined. Prior studies on thrombophilia as a risk factor for DAVF development are limited by small sample sizes and poor generalizability. METHODS In this longitudinal observational study, all patients with intracranial DAVFs evaluated at the University of California, San Francisco from December 1994 through April 2014 were identified. After obtaining patient consent, 3 thrombophilic mutations, factor V Leiden (rs6025), MTHFR (rs1801133), and prothrombin G20210A, were genotyped...
April 6, 2018: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29598906/posterior-meningeal-artery-origin-patterns-among-300-cases-and-their-clinical-importance
#12
Tomotaka Ohshima, Takashi Handa, Kojiro Ishikawa, Shigeru Miyachi, Naoki Matsuo, Reo Kawaguchi, Masakazu Takayasu
BACKGROUND AND PURPOSE: The posterior meningeal artery (PMA) is known as a dura mater-nourishing vessel. We encountered a patient with Wallenberg syndrome during transarterial embolization of the PMA associated with the dural arteriovenous fistula (DAVF). METHODS: After development of Wallenberg syndrome in the patient, we assessed origins of the PMA patterns in 300 cases and divided them into 3 types. CASE PRESENTATION: A 63-year-old man was incidentally diagnosed as having transverse-sigmoid sinus DAVF with a cortical venous reflux...
March 26, 2018: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/29567872/-tentorial-dural-arteriovenous-fistula-presenting-with-ocular-symptoms-a-case-report
#13
Naotsugu Toki, Osamu Masuo, Hiroki Nishibayashi, Rie Yako, Takumi Kawaguchi, Daisuke Izawa, Naoyuki Nakao
Tentorial dural arteriovenous fistula(dAVF)is classified as Cognard 4 with a high risk of aggressive feature, such as intracranial hemorrhage, venous infarction, and intracranial hypertension. We report a rare case presenting with ocular symptoms caused by tentorial dAVF. A 59-year-old man presented with progressive chemosis and exophthalmos of his left eye. Angiography showed a tentorial dAVF that was primarily fed by the middle meningeal artery and the meningohypophyseal artery. The AVF drained into the superior ophthalmic vein and the cerebellar cortical vein via an enlarged petrosal vein...
March 2018: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/29563208/development-of-an-intracranial-dural-arteriovenous-fistula-after-venous-sinus-stenting-for-idiopathic-intracranial-hypertension
#14
Thomas J Buell, Daniel M Raper, Dale Ding, Ching-Jen Chen, Kenneth C Liu
We report a case in which an intracranial dural arteriovenous fistula (DAVF) developed after endovascular treatment of a patient with idiopathic intracranial hypertension with venous sinus stenting (VSS). The pathogenesis may involve hemodynamic alterations secondary to increased poststenting venous sinus pressure, which may cause new arterial ingrowth into the fistulous sinus wall without capillary interposition. Despite administration of dual antiplatelet therapy, there may also be subclinical cortical vein thrombosis that contributed to DAVF formation...
March 21, 2018: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/29562862/the-role-of-angiogenesis-in-dural-arteriovenous-fistulae-the-story-so-far
#15
Pervinder Bhogal, Leonard L Yeo, Hans Henkes, Timo Krings, Michael Söderman
Intracranial dural arteriovenous fistulae are a commonly encountered pathology that can present with a variety of different clinical symptoms. Although there is a significant body of work relating to the natural history and treatment of dural arteriovenous fistulae the exact underlying pathogenesis remains elusive. Various different pathogenetic models have been put forward but there is now a growing body of evidence implicating angiogenesis and the involvement of angiogenetic factors. In this review we attempt to show how the various animal and human studies performed over the past two decades have contributed to the proposed hypothesis on the development of dural arteriovenous fistulae...
January 1, 2018: Interventional Neuroradiology
https://www.readbyqxmd.com/read/29561378/the-incidence-of-cranial-arteriovenous-shunts-in-patients-with-pulsatile-tinnitus-a-prospective-observational-study
#16
Matthijs In 't Veld, R Fronczek, J A de Laat, Henricus P M Kunst, Frederick J A Meijer, Peter W A Willems
OBJECTIVES: Finding the underlying cause for pulsatile tinnitus can be challenging. We aimed to determine the incidence of arteriovenous shunts, i.e., arteriovenous malformations (AVMs) or dural arteriovenous fistulas (dAVFs), in patients referred for catheter angiography (digital subtraction angiography [DSA]). Furthermore, we assessed which clinical features were predictive for the presence of such a lesion. STUDY DESIGN AND METHODS: Fifty-one patients with pulsatile tinnitus, who were referred to us for DSA to exclude an arteriovenous shunt, were enrolled, prospectively...
March 20, 2018: Otology & Neurotology
https://www.readbyqxmd.com/read/29545245/arterial-spin-labeling-improves-detection-of-intracranial-dural-arteriovenous-fistulas-with-mri
#17
S A Amukotuwa, M P Marks, G Zaharchuk, F Calamante, R Bammer, N Fischbein
BACKGROUND AND PURPOSE: Intracranial dural arteriovenous fistulas carry a risk of substantial neurologic complications but can be difficult to detect on structural MR imaging and TOF-MRA. The purpose of this study was to assess the accuracy and added value of 3D pseudocontinuous arterial spin-labeling MR imaging for the detection of these lesions. MATERIALS AND METHODS: This retrospective study included 39 patients with a dural arteriovenous fistula and 117 controls who had undergone both DSA and MR imaging with pseudocontinuous arterial spin-labeling...
April 2018: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/29544172/segmental-neurofibromatosis-type-1-complicated-with-multiple-intracranial-arteriovenous-fistulas-a-case-study
#18
Dian He, Yuan Li, Yunli Yu, Gang Cai, Fu Ouyang, Yuchan Lin, Hongjuan Lu, Lan Chu
Neurofibromatosis type 1 (NF1) is a rare autosomal dominant disorder that primarily affects the skin and the nervous system. This condition is called segmental NF1 (also called neurofibromatosis type V) when clinical features are limited to one area of the body. Segmental NF1 is generally thought to result from somatic mosaicism due to a postzygotic mutation in the NF1 gene, thus a test for NF1 gene abnormalities in peripheral blood is usually negative. Here we report a 31-year-old male presenting with epileptic seizures, who had a history of neurofibromas confirmed by biopsy, but lacked a family history of neurofibromatosis...
May 2018: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/29528432/intracranial-dural-arteriovenous-fistulas-with-pial-arterial-supply
#19
Takahiro Osada, Timo Krings
BACKGROUND: Pial arterial supplies are sometimes found in patients with dural arteriovenous fistulas (DAVFs), though their characteristics have rarely been clarified. OBJECTIVE: To investigate the characteristics of pial arterial supplies in DAVFs and to discuss their pathophysiology and treatment. METHODS: Two hundred four consecutive patients with intracranial DAVFs over 11 yr were retrospectively reviewed. Clinical factors and radiological findings, including the presence of pial arterial supplies, were evaluated...
March 8, 2018: Neurosurgery
https://www.readbyqxmd.com/read/29524720/lessons-to-be-remembered-from-a-dural-arteriovenous-fistula-mimicking-medulla-and-high-cervical-cord-glioma
#20
Florian Bernard, Jean-Michel Lemée, Rogatien Faguer, Henri-Dominique Fournier
The radiological signs of intracranial dural arteriovenous fistulas (ICDAVFs) are heterogenous. While it is commonly accepted that hyper intense T2 wedge magnetic resonance imaging of the brainstem and cervical cord mainly concern gliomas, it is so far uncommon and probably unknown that ICDAVFs can imitate similar radiological pattern, especially with gadolinium contrast enhancement and cord enlargement. Thus the angiography is poorly documented in the diagnostic workup. We report the unusual history of ICDAVFs, revealed by clinical and radiological features that mimicked a medulla or cervical spinal cord glioma...
May 2018: World Neurosurgery
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