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https://www.readbyqxmd.com/read/29284599/spinal-arteriovenous-vascular-malformations-in-patients-with-neural-tube-defects
#1
E Giordan, C Bortolotti, G Lanzino, W Brinjikji
BACKGROUND AND PURPOSE: Neural tube defects, such as tethered cord, intradural lipoma, or myelomeningocele may coexist with spinal vascular malformations. The coexistence of these 2 rare entities is suggestive of a causal relationship between them, which may lead to further understanding of their pathogenesis. We present a series of 6 patients with epidural spinal arteriovenous fistulas associated with neural tube defects. MATERIALS AND METHODS: We retrieved cases of spinal vascular malformations associated with neural tube defects seen at our institution...
December 28, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/29282438/management-of-unruptured-traumatic-middle-meningeal-artery-pseudoaneurysms-through-onyx-embolization
#2
Nicolas K Khattar, Andrew C White, Enzo M Fortuny, Rob T Hruska, Robert F James
Traumatic pseudoaneurysms of the middle meningeal artery (MMA) represent less than 1% of all intracranial aneurysms, and occur mostly in association with temporal bone fractures following head trauma. Given the unknown natural history, it is unclear whether they should be treated. We present two cases of MMA pseudoaneurysms discovered during trauma workups. The first patient is a 44-year-old male with severe traumatic brain injury (TBI) following a motor vehicle accident. The patient was found to have two right-sided middle meningeal artery pseudoaneurysms that were treated successfully with Onyx® (Medtronic, Minneapolis, MN) embolization...
October 23, 2017: Curēus
https://www.readbyqxmd.com/read/29278350/combined-use-of-coils-and-onyx-for-transcatheter-closure-of-coronary-artery-fistula
#3
Pan Li, Xudong Xu, Zheng Zhang, Feiyu Wang, Zhongkai Wang, Feng Chen, Bili Zhang, Yongwen Qin, Shaoping Chen, Xianxian Zhao
AIMS: To evaluate the safety and efficacy of combined of endovascular coiling as well as Onyx embolization in patients with coronary artery fistula (CAF). METHODS AND RESULTS: Between September 2014 and September 2016, 26 patients with CAFs were enrolled in our study for attempted combined therapy using coil and Onyx. The mean age of patients was 64.0±9.5 years (range, 44-78 years). CAFs were large in 10 and medium in 16 patients. The mean number of coils used was 3...
December 26, 2017: EuroIntervention
https://www.readbyqxmd.com/read/29243076/pta-stent-of-dural-sinuses-in-brain-davf-a%C3%A2-report-of-4-cases
#4
Leonardo Renieri, Caterina Michelozzi, Waleed Brinjikji, Jean Darcout, Adrien Guenego, Ivan Vukasinovic, Philippe Tall, Fabrice Bonneville, Anne-Christine Januel, Christophe Cognard
BACKGROUND AND PURPOSE: Type I and IIa dural arteriovenous fistulas (DAVFs) have a low hemorrhagic risk, but are often the cause of debilitating tinnitus that requires treatment. While Onyx® and PHIL™ (Precipitating hydrophobic injectable liquid) transarterial embolization represent the first endovascular option, there are occasional cases where performing angioplasty and stenting of the affected sinus may lead to satisfactory results. MATERIAL AND METHODS: We retrospectively analyzed four consecutive cases of patients with DAVF-induced pulsatile tinnitus secondary to type I and II DAVFs who were treated with angioplasty and stenting of the sinus only...
December 14, 2017: Clinical Neuroradiology
https://www.readbyqxmd.com/read/29237317/a-new-embolic-liquid-agent-comprised-of-amino-acid
#5
Yasutaka Baba, Michiyo Higashi, Kazuo Awai
Transcatheter arterial or venous embolization has been widely used to address solid tumors by occluding the tumor-feeding vessels. It is also performed to treat portosystemic shunts and to stop bleeding by repair of the site of trauma. Commonly used embolic materials are gelatin sponges, coils, beads, and liquid agents such as absolute ethanol, histoacyryl, and onyx. In the field of interventional radiology, embolotherapy is performed routinely. Liquid embolization agents have different characteristics. Their coagulation time, the inflammatory reaction of the vascular wall or surrounding tissue, and their adhesion to the vascular wall vary...
December 13, 2017: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/29205803/septal-reduction-therapy-using-nonalcohol-agent-in-hypertrophic-obstructive-cardiomyopathy-single-center-experience
#6
Serkan Asil, Barış Kaya, Uğur Canpolat, Hikmet Yorgun, Levent Şahiner, Cem Çöteli, Anıl Arat, Kudret Aytemir
AIMS: Percutaneous septal reduction therapy by either alcohol or nonalcohol agents is an alternative approach to surgery in drug-refractory symptomatic patients with hypertrophic obstructive cardiomyopathy (HOCM). Nonalcohol agents have some advantages and disadvantages over alcohol during the procedure. Nowadays, a novel non-alcohol agent, named as Ethylene-vinyl alcohol (EVOH) copolymer (Onyx® and Squid® ), is used during septal ablation. Thus, in this study, we aimed to evaluate both acute and long-term efficacy and safety profile of EVOH during septal ablation in HOCM...
December 5, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/29204306/facial-palsy-after-embolization-of-dural-arteriovenous-fistula-a-case-report-and-literature-review
#7
Luana Antunes Maranha Gatto, Fernando Saurin, Gelson Luis Koppe, Zeferino Demartini
Background: Dural arteriovenous fistulas (DAVF) are unusual intracranial vascular malformations consisting of anomalous connections between meningeal arteries and dural sinuses or the veins that pass through them. They have variable clinical presentation and prognosis, which depend on their location and venous hemodynamics. Treatment is based on the closure of the abnormal connections, which is usually conducted via arterial and/or transvenous endovascular techniques. Case Description: We present a male patient who complained of headaches and left-sided pulsatile tinnitus due to DAVF from the external carotid artery branches draining directly into the ipsilateral sigmoid sinus...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/29180085/transvenous-embolization-of-ethmoidal-dural-arteriovenous-fistulas-case-series-and-review-of-the-literature
#8
Nicola Limbucci, Giuseppe Leone, Sergio Nappini, Andrea Rosi, Leonardo Renieri, Arturo Consoli, Alessandro Pedicelli, Salvatore Mangiafico
BACKGROUND: Ethmoidal dural arterio-venous fistulas (DAVFs) are rare and aggressive lesions, usually treated by microsurgical disconnection of the fistula. Transarterial embolization is rarely performed because of the risk of retinal ischemia. Transvenous embolization has been reported as an alternative approach. We describe our experience in transvenous embolization of ethmoidal DAVFs and review the literature focusing on technical and safety aspects of the procedure. METHODS: We retrospectively identified 4 patients with ethmoidal DAVFs treated by transvenous embolization in a single centre...
November 24, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29159158/transarterial-balloon-assisted-onyx-embolization-of-intracranial-arteriovenous-malformations-using-a-dual-lumen-balloon-microcatheter-two-case-reports
#9
Sang Heum Kim, Tae Gon Kim, Min Ho Kong
The Onyx system has been well established in recent years as a very important material in the treatment of arteriovenous malformations (AVMs). When using the Onyx, it is essential to wait for the creation of a plug around the tip of the catheter, which enables the effective forward penetration of Onyx. Recent reports have shown that the introduction of a dimethyl sulfoxide compatible dual-lumen balloon microcatheter improves the efficiency of AVM embolization. We report our recent experience of two cases of intracranial AVM embolization using Onyx and the transarterial balloon-assisted technique...
September 2017: Journal of Cerebrovascular and Endovascular Neurosurgery
https://www.readbyqxmd.com/read/29159152/cranial-nerve-palsy-after-onyx-embolization-as-a-treatment-for-cerebral-vascular-malformation
#10
Jong Min Lee, Kum Whang, Sung Min Cho, Jong Yeon Kim, Ji Woong Oh, Youn Moo Koo, Chul Hu, Jinsoo Pyen, Jong Wook Choi
The Onyx liquid embolic system is a relatively safe and commonly used treatment for vascular malformations, such as arteriovenous fistulas and arteriovenous malformations. However, studies on possible complications after Onyx embolization in patients with vascular malformations are limited, and the occurrence of cranial nerve palsy is occasionally reported. Here we report the progress of two different types of cranial nerve palsy that can occur after embolization. In both cases, Onyx embolization was performed to treat vascular malformations and ipsilateral oculomotor and facial nerve palsies were observed...
September 2017: Journal of Cerebrovascular and Endovascular Neurosurgery
https://www.readbyqxmd.com/read/29148903/an-onyx-tunnel-reconstructive-transvenous-balloon-assisted-onyx-embolization-for-dural-arteriovenous-fistula-of-the-transverse-sigmoid-sinus
#11
Mena G Kerolus, Joonho Chung, Stephen A Munich, Yoshikazu Matsuda, Hideo Okada, Demetrius K Lopes
Transvenous embolization is an effective method for treating dural arteriovenous fistulas (DAVFs) of the transverse-sigmoid sinus (TSS). However, in cases of complicated DAVFs, it is difficult to preserve the patency of the dural sinus. The authors describe the technical details of a new reconstructive technique using transvenous balloon-assisted Onyx embolization as another treatment option in a patient with an extensive and complex DAVF of the left TSS. A microcatheter and compliant balloon catheter were navigated into the left internal jugular vein and placed at the distal end of the DAVF in the transverse sinus...
November 17, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29130853/endovascular-treatment-of-12-cases-of-renal-arteriovenous-malformations-the-experience-of-1-center-and-an-overview-of-the-literature
#12
Zhen-Yu Jia, Chun-Gao Zhou, Jin-Guo Xia, Lin-Bo Zhao, Wen Zhang, Sheng Liu, Hai-Bin Shi
OBJECTIVES: Congenital renal arteriovenous malformations (rAVMs) represent rare vascular diseases. The heterogeneous vascular architecture of each rAVM determines the endovascular treatment techniques employed. We reported our experience with the endovascular treatment of a series of rAVMs. MATERIALS: This retrospective study consisted of 12 patients with 12 rAVMs who underwent renal arterial embolization (RAE) in our hospital. Embolic materials, including particles, liquid embolic agents (n-butyl 2-cyanoacrylate, Onyx, and ethanol), and coils, were selectively used based on the decisions of interventional radiologists...
January 1, 2017: Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/29125026/delayed-and-incomplete-treatment-may-result-in-dural-fistula-development-in-children-with-vein-of-galen-malformation
#13
Dan Meila, Cynthia Schmidt, Katharina Melber, Dominik Grieb, Cornelius Jacobs, Collin Jacobs, Heinrich Lanfermann, Friedhelm Brassel
The association of dural arteriovenous fistulas (DAVF) in children with Vein of Galen malformation (VGM) has recently been reported for the first time. In a larger series of cases treated with transarterial NBCA embolization, 30% had DAVF. We wanted to analyze the development of DAVF in our cohort of children with VGM and to evaluate whether their occurrence depends on different treatment timing and embolic materials. We analyzed 43 VGM cases treated with a combined transarterial and transvenous approach between 2003 and 2016...
January 1, 2017: Interventional Neuroradiology
https://www.readbyqxmd.com/read/29123452/mechanical-extraction-of-a-refluxed-onyx-piece-from-the-sigmoid-sinus-using-a-solitaire-ab-stent-for-treating-a-dural-arteriovenous-fistula-technical-report
#14
Erdem Cayli, Sukru Oguz, Hasan Dinc
No abstract text is available yet for this article.
October 2017: Eurasian Journal of Medicine
https://www.readbyqxmd.com/read/29119877/direct-puncture-onyx-embolization-of-a-large-calvarial-metastasis-with-intracranial-extension-case-report
#15
Minerva H Zhou, Gavin P Dunn, Joshua W Osbun, DeWitte T Cross, Christopher J Moran, Ralph G Dacey, Akash P Kansagra
We report a case of renal cell carcinoma (RCC) metastasis to the calvarium and describe a strategy for percutaneous embolization of hypervascular calvarial tumors with intracranial extension. An elderly patient with history of RCC presented with left-sided weakness. Imaging studies showed a large right frontoparietal calvarial mass with intra- and extracranial extension. The tumor was devascularized by direct puncture tumor embolization using Onyx 18, allowing subsequent operative resection without significant blood loss or the need for flap reconstruction of the scalp...
January 1, 2017: Interventional Neuroradiology
https://www.readbyqxmd.com/read/29114088/unruptured-brain-arteriovenous-malformations-primary-onyx-embolization-in-aruba-a-randomized-trial-of-unruptured-brain-arteriovenous-malformations-eligible-patients
#16
Uri Singfer, Dimitri Hemelsoet, Peter Vanlangenhove, Frederic Martens, Luc Verbeke, Dirk Van Roost, Luc Defreyne
BACKGROUND AND PURPOSE: In light of evidence from ARUBA (A Randomized Trial of Unruptured Brain Arteriovenous Malformations), neurovascular specialists had to reconsider deliberate treatment of unruptured brain arteriovenous malformations (uBAVMs). Our objective was to determine the outcomes of uBAVM treated with primary embolization using ethylene vinyl alcohol (ONYX). METHODS: Patients with uBAVM who met the inclusion criteria of ARUBA and were treated with primary Onyx embolization were assigned to this retrospective study...
November 7, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/29107898/negative-effects-of-microplastic-exposure-on-growth-and-development-of-crepidula-onyx
#17
Hau Kwan Abby Lo, Kit Yu Karen Chan
Microplastics exposure could be detrimental to marine organisms especially under high concentrations. However, few studies have considered the multiphasic nature of marine invertebrates' life history and investigated the impact of experiencing microplastics during early development on post-metamorphic stages (legacy effect). Many planktonic larvae can feed selectively and it is unclear whether such selectivity could modulate the impact of algal food-sized microplastic. In this two-stage experiment, veligers of Crepidula onyx were first exposed to additions of algae-sized micro-polystyrene (micro-PS) beads at different concentrations, including ones that were comparable their algal diet...
November 3, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/29107165/transarterial-onyx-%C3%A2-embolization-of-bilateral-transverse-sigmoid-dural-arteriovenous-malformation-with-transvenous-balloon-assist-initial-us-experience-with-the-copernic-rc-venous-remodeling-balloon
#18
Abdulrahman Alturki, Alejandro Enriquez-Marulanda, Philip Schmalz, Christopher S Ogilvy, Ajith J Thomas
No abstract text is available yet for this article.
October 26, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29084067/a-randomized-control-trial-of-cardiopulmonary-feedback-devices-and-their-impact-on-infant-chest-compression-quality-a-simulation-study
#19
Andrea L Austin, Carmen N Spalding, Katrina N Landa, Brian R Myer, Cure Donald, Jason E Smith, Gerald Platt, Heather C King
OBJECTIVES: In effort to improve chest compression quality among health care providers, numerous feedback devices have been developed. Few studies, however, have focused on the use of cardiopulmonary resuscitation feedback devices for infants and children. This study evaluated the quality of chest compressions with standard team-leader coaching, a metronome (MetroTimer by ONYX Apps), and visual feedback (SkillGuide Cardiopulmonary Feedback Device) during simulated infant cardiopulmonary resuscitation...
October 27, 2017: Pediatric Emergency Care
https://www.readbyqxmd.com/read/29056193/laser-assisted-transgraft-embolization-a%C3%A2-technique-for-the-treatment-of-type-ii-endoleaks
#20
Mark W Mewissen, M Fuad Jan, David Kuten, Zvonimir Krajcer
A transgraft embolization (TGE) technique was performed in a patient to treat a type II endoleak. Using a transfemoral arterial approach, the endograft was punctured using a coronary laser catheter aimed toward the type II endoleak nidus, which was treated with Onyx (Medtronic, Minneapolis, Minnesota). TGE resulted in successful embolization, as demonstrated on 1-year follow-up CT angiography, which showed complete elimination of the type II endoleak and shrinkage of the aneurysmal sac. TGE is an alternative to transarterial embolization, translumbar embolization, and transcaval embolization...
November 2017: Journal of Vascular and Interventional Radiology: JVIR
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