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https://www.readbyqxmd.com/read/28106525/open-and-endovascular-treatment-of-spinal-dural-arteriovenous-fistulas-a-10-year-experience
#1
Matthew J Koch, Christopher J Stapleton, Pankaj K Agarwalla, Collin Torok, John H Shin, Jean-Valery Coumans, Lawrence F Borges, Christopher S Ogilvy, James D Rabinov, Aman B Patel
OBJECTIVE Vascular malformations of the spine represent rare clinical entities with profound neurological implications. Previously reported studies on management strategies for spinal dural arteriovenous fistulas (sDAVFs) appeared before the advent of modern liquid embolic agents. Authors of the present study review their institutional experience with endovascularly and surgically treated sDAVFs. METHODS The authors performed a retrospective, observational, single-center case series on sDAVFs treated with endovascular embolization, microsurgical occlusion, or both between 2004 and 2013...
January 20, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28050660/new-alcohol-and-onyx-mixture-for-embolization-feasibility-and-proof-of-concept-in-both-in-vitro-and-in-vivo-models
#2
Mohammad Saeed Kilani, Fatemeh Zehtabi, Sophie Lerouge, Gilles Soulez, Jean Michel Bartoli, Vincent Vidal, Mohammad F Badran
INTRODUCTION: Onyx and ethanol are well-known embolic and sclerotic agents that are frequently used in embolization. These agents present advantages and disadvantages regarding visibility, injection control and penetration depth. Mixing both products might yield a new product with different characteristics. The aim of this study is to evaluate the injectability, radiopacity, and mechanical and occlusive properties of different mixtures of Onyx 18 and ethanol in vitro and in vivo (in a swine model)...
January 3, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28050436/symptomatic-granuloma-secondary-to-embolic-agent-a-case-report
#3
Prashant Gunawat, Salman Tehran Shaikh, Vikram Karmarkar, Chandrashekhar Deopujari
Onyx is a liquid embolic agent presently gaining wide acceptance for embolisation of multiple vascular cranial pathologies like Arteriovenous Malformation (AVM) and Arteriovenous Fistula (AVF). Onyx stays in the nidus of vascular pathology and initiates inflammatory response leading to thrombosis and subsequently resulting in occlusion of vascular nidus. However, if onyx spills into the surrounding brain tissue, reaction occurs in the form of foreign body inflammatory reaction. This is one of the very few cases in literature whereby embolisation of AVM with onyx lead to granuloma formation which needed surgical excision...
November 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28031689/the-safety-of-using-large-amount-30-cc-of-onyx-ethylene-vinyl-alcohol-copolymer-for-the-treatment-of-large-type-ii-endoleak-after-endovascular-repair-of-abdominal-aortic-aneurysm
#4
Mohammad Hasan Namazi, Isa Khaheshi, Ali Reza Serati, Mohammad Reza Movahed
Endovascular aneurysm repair (EVAR) is associated with late complications including the development of endoleaks as major complications. Type II endoleak is the consequence of collateral retrograde flow from the aortic branches; generally from the lumbar arteries, inferior mesenteric artery, or middle sacral artery. The method and the ideal timing for the treatment of endoleaks remain controversial. We are presenting a case of successful treatment of a large type II endoleak using embolization with large amount of Onyx copolymer via a percutaneous transfemoral route without any adverse outcome...
December 2016: International Journal of Angiology: Official Publication of the International College of Angiology, Inc
https://www.readbyqxmd.com/read/28011359/detection-of-a-rare-complication-of-endovascular-treatment-for-brain-avm-by-echocardiography
#5
Mozhgan Parsaee, Sedigheh Saedi, Sepideh Emami, Alireza Serati
A brain arteriovenous malformation (AVM) is a congenital malformation of the vascular system, in which an abnormal short circuit (vascular malformation) connects cerebral arteries and veins. When the brain AVMs are diagnosed, the majority of them must be closed with surgical or endovascular treatment; because only a small portion of the brain AVMs remain asymptomatic during the patient's life. Endovascular trans-arterial embolization using Onyx is a suitable method of treating brain AVMs. Previously known complications of onyx usage are bleeding and neurologic deficits...
December 21, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27935467/possible-toxicity-following-embolization-of-congenital-giant-vertex-hemangioma-case-report
#6
Ingrid Kieran, Zaitun Zakaria, Chandrasekaran Kaliaperumal, Declan O'Rourke, Alan O'Hare, Eoghan Laffan, John Caird, Mary D King, Dylan J Murray
The authors describe the case of a 3-year-old boy with a giant congenital vertex hemangioma who underwent presurgical embolization with Onyx (ethylene-vinyl alcohol copolymer dissolved in dimethyl sulfoxide) and Glubran (N-butyl-2-cyanoacrylate). This vascular tumor had no intracranial vascular communication as assessed by pre-embolization MRI and catheter angiography. All embolizations were performed by direct percutaneous injection. One week following the last embolization procedure the child presented with a 24-hour history of ataxia and extrapyramidal tremor...
December 9, 2016: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/27932510/embolization-of-intracranial-dural-arteriovenous-fistulas-using-phil-liquid-embolic-agent-in-26-patients-a-multicenter-study
#7
S Lamin, H S Chew, S Chavda, A Thomas, M Piano, L Quilici, G Pero, M Holtmannspolter, M E Cronqvist, A Casasco, L Guimaraens, L Paul, A Gil Garcia, A Aleu, R Chapot
BACKGROUND AND PURPOSE: The introduction of liquid embolic agents has revolutionized endovascular approach to cranial vascular malformations. The aim of the study was to retrospectively assess the efficacy and safety of Precipitating Hydrophobic Injectable Liquid (PHIL), a new nonadhesive liquid embolic agent, in the treatment of patients with cranial dural arteriovenous fistulas. The primary end point was the rate of complete occlusion of dural arteriovenous fistulas. Secondary end points included the incidence of adverse events and clinical status at 3-month follow-up...
December 8, 2016: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/27923749/spinal-glomus-arteriovenous-malformation-manifesting-with-a-subarachnoid-hemorrhage
#8
Badih Daou, Elias Atallah, Fadi Al-Saiegh, Kenan Alkhalili, Stavropoula Tjoumakaris, Robert H Rosenwasser, Pascal Jabbour
BACKGROUND: Spinal arteriovenous malformations (AVMs) are rare lesions that may cause serious neurologic morbidity. With developments in endovascular technology and embolic materials, endovascular management of spinal AVMs has gained popularity. CASE DESCRIPTION: A 61-year-old woman presented with the worst headache of her life and an acute onset of nausea and vomiting and was shown to have a grade 2 subarachnoid hemorrhage (SAH) on computed tomography scan. A 6-vessel cerebral angiogram was negative for any vascular abnormalities...
December 3, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27908450/the-learning-curve-effect-on-embolization-of-cerebral-dural-arteriovenous-fistula-single-center-experience-in-48%C3%A2-consecutive-patients
#9
D Le Foll, H Raoult, J C Ferré, F Naudet, D Trystram, J Y Gauvrit
BACKGROUND: Cerebral dural arteriovenous fistulas (DAVFs) are rare intracranial vascular lesions but can cause significant morbidity and mortality. OBJECTIVES: To analyze the effect of the center's experience on DAVF embolization efficacy and safety. METHODS: From May 2008 to October 2014, 57 embolization procedures were attempted on 48 patients (37 men and 11 women; median age: 63.9 years) for DAVF in a single center. DAVF presented with cortical venous reflux in 44/48 cases (91...
November 28, 2016: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/27903925/onyx-extravasation-during-embolization-of-a-brain-arteriovenous-malformation
#10
Hiroyuki Ikeda, Hirotoshi Imamura, Yuji Agawa, Yukihiro Imai, Shoichi Tani, Hidemitsu Adachi, Tatsuya Ishikawa, Yohei Mineharu, Nobuyuki Sakai
During Onyx embolization to treat brain arteriovenous malformation (AVM), carefully observing the penetration of Onyx to the nidus is important in order to avoid complications such as hemorrhage, ischemia, and difficulty with microcatheter removal. We encountered a case of Onyx extravasation during embolization of a cerebellar AVM confirmed by surgical resection and pathological analysis. The patient was a 44-year-old man with Spetzler-Martin grade I cerebellar AVM who underwent Onyx embolization prior to resection of the brain AVM...
November 30, 2016: Interventional Neuroradiology
https://www.readbyqxmd.com/read/27903195/dosimetric-effects-of-onyx-embolization-on-gamma-knife-arteriovenous-malformation-dose-distributions
#11
David J Schlesinger, Håkan Nordström, Anders Lundin, Zhiyuan Xu, Jason P Sheehan
OBJECTIVE Patients with arteriovenous malformations (AVMs) treated with Gamma Knife radiosurgery (GKRS) subsequent to embolization suffer from elevated local failure rates and differences in adverse radiation effects. Onyx is a common embolic material for AVMs. Onyx is formulated with tantalum, a high atomic number (Z = 73) element that has been investigated as a source of dosimetric uncertainty contributing to the less favorable clinical results. However, prior studies have not modeled the complicated anatomical and beam geometries characteristic of GKRS...
December 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27903193/three-dimensional-assessment-of-the-effects-of-high-density-embolization-material-on-the-absorbed-dose-in-the-target-for-gamma-knife-radiosurgery-of-arteriovenous-malformations
#12
Yoichi Watanabe, Divyajot Sandhu, Leighton Warmington, Sean Moen, Ramachandra Tummala
OBJECTIVE Arteriovenous malformation (AVM) is an intracranial vascular disorder. Gamma Knife radiosurgery (GKRS) is used in conjunction with intraarterial embolization to eradicate the nidus of AVMs. Clinical results indicate that patients with prior embolization tend to gain less benefit from GKRS. The authors hypothesized that this was partly caused by dosimetric deficiency. The actual dose delivered to the target may be smaller than the intended dose because of increased photon attenuation by high-density embolic materials...
December 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27847777/onyx-embolization-of-intracranial-pial-arteriovenous-fistula
#13
Hae-Min Kim, Jae-Hoon Cho, Ki-Hong Kim
Intracranial pial arteriovenous fistulas (AVFs) are rare cerebrovascular lesions consisting of one or more arterial connections to a single venous channel without an intervening nidus. Because of the location and high flow dynamics of these lesions, neurosurgeons may have a difficulty deciding between endovascular treatment and open surgical treatment. We report on a patient who underwent endovascular treatment with liquid embolic agent. A 50-year-old man with a decreased mental state and a tonic seizure event was brought to our hospital...
September 2016: Journal of Cerebrovascular and Endovascular Neurosurgery
https://www.readbyqxmd.com/read/27828804/onyx-embolization-as-single-rescue-treatment-for-ruptured-abdominal-aortic-aneurysm-after-evar
#14
Satoko Fujita, Tal Hörer, Artai Pirouzram, Asko Toivola, Göran Gruber, Thomas Larzon
A 76-year-old man who had undergone endovascular repair for an infrarenal aortic aneurysm, presented with a late type Ia endoleak 3 years after his operation. Deployment of an aortic cuff did not achieve a better seal at the proximal neck, and the aneurysm developed a rupture. We successfully treated the ruptured aneurysm using transcatheter Onyx embolization only. At 6-month and 1-year follow-ups with contrast-enhanced duplex scanning, no endoleak was seen and sac shrinkage was observed. Onyx is a relatively new liquid embolic agent that is slowly transformed into a solid state by contact with blood...
September 2016: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
https://www.readbyqxmd.com/read/27817050/ethylene-vinyl-alcohol-copolymer-as-embolic-agent-for-treatment-of-type-ii-endoleak-our-experience
#15
Anna Maria Ierardi, Camilla Micieli, Salvatore Alessio Angileri, Nicola Rivolta, Gabriele Piffaretti, Massimo Tonolini, Federico Fontana, Vittorio Miele, Luca Brunese, Gianpaolo Carrafiello
AIM: To evaluate safety, technical and clinical success of embolization of type II endoleak (T2 EL) using ethylene-vinyl alcohol copolymer as embolic agent alone or in combination with others materials. MATERIALS AND METHODS: From March 2007 to March 2015, 104 patients presented T2 EL during follow-up. A total of 21 patients met the criteria for treatment. T2 EL was treated with TAE (n = 18), DPSI (n = 10) or laparoscopic ligature of the inferior mesenteric artery (n = 1)...
November 5, 2016: La Radiologia Medica
https://www.readbyqxmd.com/read/27812721/assessment-of-facial-soft-tissue-profiles-based-on-lateral-photographs-versus-three-dimensional-face-scans
#16
Martin Fink, Ursula Hirschfelder, Veronika Hirschinger, Matthias Schmid, Caroline Spitzl, Andreas Detterbeck, Elisabeth Hofmann
OBJECTIVES: The purpose of this study was to compare two-dimensional (2D) lateral photographs versus three-dimensional (3D) face scans in analyzing facial profiles using Schwarz's concept of the jaw profile field (JPF) in its original 2D and in a modified 3D version. In addition, the distribution of the facial profile types described by Schwarz were examined. MATERIALS AND METHODS: Of 75 adult volunteers recruited specifically for this study, we obtained both photographs (Nikon D 300S; Nikon, Düsseldorf, Germany) and scans (FaceSCAN(3D) Scientific Photolab 60 Hz; 3D-Shape, Erlangen, Germany) in a standardized setting...
January 2017: Journal of Orofacial Orthopedics, Fortschritte der Kieferorthopädie
https://www.readbyqxmd.com/read/27811496/a-case-report-of-onyx-pulmonary-arterial-embolism-contributing-to-hypoxemia-during-awake-craniotomy-for-arteriovenous-malformation-resection
#17
Brian T Tolly, Jenna L Kosky, Antoun Koht, Laura B Hemmer
A healthy 26-year-old man with cerebral arteriovenous malformation underwent staged endovascular embolization with Onyx followed by awake craniotomy for resection. The perioperative course was complicated by tachycardia and severe intraoperative hypoxemia requiring significant oxygen supplementation. Postoperative chest computed tomography (CT) revealed hyperattenuating Onyx embolization material within the pulmonary vasculature, and an electrocardiogram indicated possible right heart strain, supporting clinically significant embolism...
November 2, 2016: A & A Case Reports
https://www.readbyqxmd.com/read/27798326/traumatic-arteriovenous-fistula-between-the-extracranial-middle-meningeal-artery-and-the-pterygoid-plexus-a-case-report-and-literature-review
#18
Jinlu Yu, Yunbao Guo, Zhongxue Wu, Kan Xu
The formation of a traumatic arteriovenous fistula (AVF) between the extracranial middle meningeal artery (MMA) and the pterygoid plexus (PP) is very rare, and understanding of this condition is limited. This paper reports the case of an 8-year-old who suffered minor injuries after a high fall four months prior to admission and showed good recovery after one month. However, the child gradually developed exophthalmos of the left eye and conjunctival redness one month prior to admission. Auscultation revealed an intracranial murmur near the left side of the face, in the temporal region...
October 26, 2016: Interventional Neuroradiology
https://www.readbyqxmd.com/read/27789619/coil-embolization-through-the-marathon-microcatheter-advantages-and-pitfalls
#19
Joel S Beckett, Gary R Duckwiler, Satoshi Tateshima, Viktor Szeder, Reza Jahan, Nestor Gonzalez, Fernando Vinuela
Due to technical limitations, small, distal, and tortuous intracranial pathology is sometimes out of reach of the current armamentarium of microcatheters designed for intracranial coil embolization. The Marathon microcatheter (Medtronic, Minneapolis, Minnesota, USA), designed specifically for the delivery of Onyx, is longer and more flexible than most coil delivery catheters. We report on nine patients (three with arteriovenous fistula, three with arteriovenous malformation, two with intracranial aneurysm, and one with tumor) where Marathon was used to deliver commercially available platinum coils...
October 27, 2016: Interventional Neuroradiology
https://www.readbyqxmd.com/read/27776896/transcatheter-arterial-embolization-with-ethylene-vinyl-alcohol-copolymer-onyx-for-the-treatment-of-hemorrhage-due-to-uterine-arteriovenous-malformations
#20
P-A Barral, M Saeed-Kilani, F Tradi, A Dabadie, J Izaaryene, J Soussan, J-M Bartoli, V Vidal
PURPOSE: The purpose of this study was to evaluate the effectiveness of ethylene vinyl alcohol copolymer (Onyx) as a single embolic agent for percutaneous arterial treatment of hemorrhage due to uterine arteriovenous malformations (AVMs). MATERIALS AND METHODS: Twelve women (mean age, 33 years) with metrorrhagia due to uterine AVMs who were treated by percutaneous arterial embolization using Onyx as a single embolic agent were retrospectively included. The diagnosis of uterine AVM was suggested by pelvic ultrasound and/or magnetic resonance imaging findings and further confirmed by angiography...
October 21, 2016: Diagnostic and Interventional Imaging
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