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https://www.readbyqxmd.com/read/29155706/comprehensive-endovascular-and-open-surgical-management-of-cerebral-arteriovenous-malformations
#1
Robert C Rennert, Jeffrey A Steinberg, Vincent J Cheung, David R Santiago-Dieppa, Jeffrey Scott Pannell, Alexander A Khalessi
Arteriovenious malformations (AVMs) are associated with significant morbidity and mortality, and have a rupture risk of ~3% per year. Treatment of AVMs must be tailored specifically to the lesion, with surgical resection being the gold standard for small, accessible lesions. Pre-operative embolization of AVMs can reduce nidal blood flow and remove high-risk AVM features such as intranidal or venous aneurysms, thereby simplifying a challenging neurosurgical procedure. Herein, we describe our approach for the staged endovascular embolization and open resection of AVMs, and highlight the advantages of having a comprehensively trained neurovascular surgeon leading a multi-disciplinary clinical team...
October 20, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29155066/unruptured-versus-ruptured-avms-outcome-analysis-from-a-multicentric-consecutive-series-of-545-surgically-treated-cases
#2
Marco Cenzato, Fulvio Tartara, Giuseppe D'Aliberti, Carlo Bortolotti, Francesco Cardinale, Gianfranco Ligarotti, Alberto Debernardi, Alessia Fratianni, Edoardo Boccardi, Roberto Stefini, Francesco Zenga, Riccardo Boccaletti, Andrea Lanterna, Giacomo Pavesi, Paolo Ferroli, Carmelo Sturiale, Alessandro Ducati, Andrea Cardia, Maurizio Piparo, Luca Valvassori, Mariangela Piano
Recent literature strongly challenged indications to perform preventive surgery in unruptured AVM. claiming that invasive AVM treatment is associated with a significant risk of complications and thus conservative management may be a preferable alternative in many patients. On the other hand, the recent improvement of surgical instrumentation and treatment strategies (both surgical and interventional) yielded much better outcomes than those achieved only a decade ago. Therefore, even among the specialists, a wide variety of opinions, concerning the treatment of unruptured AVM, can be found...
November 14, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29153848/-maternal-death-by-stroke-results-from-the-french-enquiry-into-maternal-deaths-2010-2012
#3
H Cohen, M Rossignol
Stroke is a rare event during pregnancy (10/100,000) and can be ischemic (24%), hemorrhagic (74%) or both (2%). Pregnancy probably increases the risk even if it is discussed for arteriovenous malformation (AVM), aneurismal subarachnoid hemorrhage (SAH) and cavernomas. Between 2010 and 2012, 31 maternal deaths were associated with stroke. In 22 cases, stroke was the direct cause of death giving a maternal mortality ratio of 0,9/100,000 witch is not different from the former report (2007-2009). There were 2 cerebral thrombophlebitis, 2 ischemic strokes and 18 hemorrhagic strokes (4 SAH, 2 AVM)...
November 15, 2017: Gynecologie, Obstetrique, Fertilite & Senologie
https://www.readbyqxmd.com/read/29142782/massive-left-sided-congestive-colitis-due-to-idiopathic-inferior-mesenteric-arteriovenous-malformation
#4
Laura Martí Gelonch, Jose Maria Enríquez-Navascués, Tania Pastor Bonel, Yolanda Saralegui Ansorena
Arteriovenous malformations (AVM) of the inferior mesenteric artery are rare. They may be primary (congenital or idiopathic) or secondary (acquired) after trauma or of iatrogenic origin. Of the abdominal AVM, the inferior mesenteric trunk is the least commonly involved. Most reported cases are of iatrogenic origin, resulting from colon surgery. Only 17 cases have been described and published in the literature. The objective of this work is to make known a case treated in our center. We present a case of 73-year old male, who came to the emergency service with symptoms of abdominal distension, pain lasting 48 hours along with months of diarrhoea...
2017: Journal of Clinical Imaging Science
https://www.readbyqxmd.com/read/29142484/contemporary-management-of-pulmonary-arteriovenous-malformations
#5
REVIEW
Nicholas Rauh, John Gurley, Sibu Saha
Pulmonary arteriovenous malformations (PAVMs) are atypical vascular structures involving a direct connection between the pulmonary arterial and venous circulations. While PAVMs are a relatively uncommon disorder, unmanaged cases are at risk for the development of serious complications including embolization and infection. Since their first description in 1897, PAVMs have been identified and treated in a variety of ways. Advancements in diagnostic methods and operative techniques have allowed for more effective treatment of the disease...
December 2017: International Journal of Angiology: Official Publication of the International College of Angiology, Inc
https://www.readbyqxmd.com/read/29141890/british-thoracic-society-clinical-statement-on-pulmonary-arteriovenous-malformations
#6
Claire L Shovlin, Robin Condliffe, James W Donaldson, David G Kiely, Stephen J Wort
Pulmonary arteriovenous malformations (PAVMs) are structurally abnormal vascular communications that provide a continuous right-to-left shunt between pulmonary arteries and veins. Their importance stems from the risks they pose (>1 in 4 patients will have a paradoxical embolic stroke, abscess or myocardial infarction while life-threatening haemorrhage affects 1 in 100 women in pregnancy), opportunities for risk prevention, surprisingly high prevalence and under-appreciation, thus representing a challenging condition for practising healthcare professionals...
December 2017: Thorax
https://www.readbyqxmd.com/read/29139152/giant-intracranial-arteriovenous-malformation-as-the-focus-of-epileptic-seizures
#7
Mio Takayama, Kenji Hara, Aya Matsusue, Brian Waters, Natsuki Ikematsu, Masayuki Kashiwagi, Shin-Ichi Kubo
A man in his late thirties was found in a supine position in the hallway of his house. He had been diagnosed with epilepsy at approximately 20 years old. Since stopping treatment, epileptic events occurred more frequently and his condition deteriorated in the past 2 years. Autopsy revealed that head injuries were found on the left side of his head. A fracture from the left parietal bone to the anterior cranial fossa was also detected. A subdural hemorrhage (hematoma) spanned a wide range. A subarachnoid hemorrhage was also identified in the left parietal region...
November 14, 2017: Neuropathology: Official Journal of the Japanese Society of Neuropathology
https://www.readbyqxmd.com/read/29137094/a-novel-non-contrast-enhanced-mra-using-silent-scan-for-evaluation-of-brain-arteriovenous-malformation-a-case-report-and-review-of-literature
#8
Jin Il Moon, Hye Jin Baek, Kyeong Hwa Ryu, Hyun Park
RATIONALE: Brain arteriovenous malformations (AVMs) are congenital vascular abnormalities involving abnormal connections between arteries and veins. In clinical practice, imaging studies help evaluate feeding arteries, niduses, draining venous systems, and coexisting complications in patients with brain AVM. They also have an impact on decision-making regarding clinical management. We applied a novel non-contrast-enhanced MR angiography (MRA) technique, termed "silent MRA," for evaluating an incidental brain AVM...
November 2017: Medicine (Baltimore)
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
#9
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/29124818/diagnosis-and-management-of-patients-with-enhanced-myometrial-vascularity-associated-with-retained-products-of-conception
#10
Yvette S Groszmann, Amie Lynn Healy Murphy, Beryl R Benacerraf
OBJECTIVES: We performed this study to assess the complication rate, including the estimated amount of blood loss, in patients who underwent dilation and curettage for treatment of retained products of conception with markedly enhanced myometrial vascularity mimicking arteriovenous malformations. METHODS: This is a retrospective medical records review study of patients with retained products of conception with enhanced myometrial vascularity presenting to our ultrasound unit between August 1, 2015 and August 1, 2017...
November 10, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/29114275/intraoperative-anatomical-and-hemodynamic-analysis-of-intracerebral-arteriovenous-malformations-by-semi-quantitative-color-coded-indocyanine-green-videoangiography
#11
Yoko Kato, Yasuhiro Yamada, Akiyo Sadato, Mohsen Nouri, Iype Cherian, Teppei Tanaka, Joji Inamasu
Objective and Background: To evaluate possible roles for indocyanine green (ICG)-based FLOW 800 software in surgical treatment of cerebral arteriovenous malformations (AVMs). Methods: We perform ICG videoangiography several times for each step of AVM resection to elucidate feeders, drainers, and cerebral perfusion. Results: Since 2010, 22 AVM surgeries in our department have been conducted using FLOW 800 intraoperatively. We demonstrated ICG angiograms, color-coded images, and semi-quantitative curves for AVMs...
October 2017: Asian Journal of Neurosurgery
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
#12
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/29113859/treatment-decision-for-occipital-arteriovenous-malformations-avms-to-achieve-hemorrhagic-control-while-maximizing-visual-preservation-our-experience-and-review-of-literature
#13
REVIEW
Wuyang Yang, Jose L Porras, Eunice Philadelphia, Jody Law, Tomas Garzon-Muvdi, Justin M Caplan, Geoffrey P Colby, Alexander L Coon, Rafael J Tamargo, Judy Huang
Despite concern of hemorrhagic risk, patients with occipital AVMs are at significant risk for visual disturbances after treatment. We aim to characterize the hemorrhage risk and visual disturbance in occipital AVMs patients from our experience and literature review. We performed retrospective review of occipital AVM patients seen at our institution from 1990 to 2015. Patient characteristics were compared using multivariable logistic regression with follow-up visual disturbance as the outcome. We also systematically reviewed the PubMed database for English literature describing occipital AVMs (with exclusion of case reports)...
November 4, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/29109350/-spontaneous-regression-of-pancreatic-arteriovenous-malformation-under-the-influence-of-severe-acute-pancreatitis-a-case-report
#14
Maho Nagasawa, Kazuhito Kawata, Satoru Yamazaki, Takeshi Chida, Hidenao Noritake, Yoshifumi Morita, Takanori Sakaguchi, Shuhei Yamashita, Mika Kamiya, Yoshimasa Kobayashi
A 49-year-old man was diagnosed with severe acute pancreatitis because of pancreatic arteriovenous malformation (AVM). The pancreatic AVM spontaneously regressed during conservative treatment for severe acute pancreatitis. Transarterial embolization of an aneurysm in an artery branch flowing into the pancreatic AVM was performed using metallic coils, following amelioration of severe acute pancreatitis. The complete elimination of the pancreatic AVM was confirmed 1 year after embolization, and the patient has had no recurrence of pancreatic AVM and pancreatitis for over 6 years...
2017: Nihon Shokakibyo Gakkai Zasshi, the Japanese Journal of Gastro-enterology
https://www.readbyqxmd.com/read/29106647/contrast-time-density-time-on-digital-subtraction-angiography-correlates-with-cerebral-arteriovenous-malformation-flow-measured-by-quantitative-magnetic-resonance-angiography-angioarchitecture-and-hemorrhage
#15
Denise Brunozzi, Ahmed E Hussein, Sophia F Shakur, Andreas Linninger, Chih-Yang Hsu, Fady T Charbel, Ali Alaraj
BACKGROUND: Digital subtraction angiography (DSA) currently provides angioarchitectural features of cerebral arteriovenous malformations (AVMs) but its role in the hemodynamic evaluation of AVMs is poorly understood. OBJECTIVE: To assess contrast time-density time (TT) on DSA relative to AVM flow measured using quantitative magnetic resonance angiography (QMRA). METHODS: Patients seen at our institution between 2007 and 2014 with a supratentorial AVM and DSA and QMRA obtained prior to any treatment were retrospectively reviewed...
July 6, 2017: Neurosurgery
https://www.readbyqxmd.com/read/29105011/modern-robot-assisted-radiosurgery-of-cerebral-angiomas-own-experiences-system-comparisons-and-comprehensive-literature-overview
#16
Thomas Feutren, Andres Huertas, Julia Salleron, René Anxionnat, Serge Bracard, Olivier Klein, Didier Peiffert, Valérie Bernier-Chastagner
Cerebral arteriovenous malformations (AVMs) are rare vascular lesions potentially responsible for substantial neurological morbidity and mortality. Over the past four decades, radiosurgery has become a valid therapeutic option for many patients with small intracranial AVMs, but reports describing the use of robotic stereotactic radiosurgery (SRS) are rare. The purposes of this study are to describe the efficacy and toxicity of robotic SRS for AVMs and to review the literature. The reports of 48 consecutive patients treated with SRS were reviewed...
November 5, 2017: Neurosurgical Review
https://www.readbyqxmd.com/read/29098131/percutaneous-vertebral-artery-access-for-embolization-of-cerebrovascular-disease-illustrative-case-and-operative-technique
#17
Ali S Haider, Tijani Osumah, Richa Thakur, Steven Vayalumkal, Mrigank S Shail, Umair Khan, Hasan Sumdani, Joseph Hise, Kennith F Layton
Intracranial arteriovenous malformations can be further complicated by the development of aneurysms, which themselves carry the risk of rupture and hemorrhage. New endovascular techniques allow for more treatment options for these lesions in the setting of arteriovenous malformations. Here we present the case of a patient who developed an aneurysm in the setting of an arteriovenous malformation and subsequently underwent successful endovascular treatment via percutaneous access of the vertebral artery along with reviewing the literature on further treatment options and developments...
August 28, 2017: Curēus
https://www.readbyqxmd.com/read/29096902/-paradoxical-embolism-myth-or-reality
#18
P Aubry, H Demian, E Brochet, J-M Juliard
Paradoxical embolism should be suspected in front of a clinical phenomenon of thromboembolism associated with an anatomical right-to-left shunt. Others potential cardiac sources of thromboembolism must be ruled out. Strokes constitute the most frequent clinical manifestations of paradoxical embolism. Right-to-left left shunts are in connection with intracardiac defects (atrial septal defect and patent foramen ovale) or pulmonary arteriovenous malformations. The probability that a discovered PFO is stroke-related can be evaluated by a score...
October 30, 2017: Annales de Cardiologie et D'angéiologie
https://www.readbyqxmd.com/read/29093495/application-of-multimodal-navigation-together-with-fluorescein-angiography-in-microsurgical-treatment-of-cerebral-arteriovenous-malformations
#19
Shiyu Feng, Yanyang Zhang, Zhenghui Sun, Chen Wu, Zhe Xue, Yudong Ma, Jinli Jiang
This study aimed to explore the clinical applications of multimodal navigation combined with indocyanine green (ICG) fluorescein angiography in microsurgical treatment of cerebral arteriovenous malformations (AVMs). We retrospectively collected 52 patients with AVMs. Assisted by anatomic image, we reestablished three-dimensional structure using preoperative functional magnetic resonance imaging (fMRI) and Diffusion tensor imaging (DTI). The operation for lesion resection was finished under the assistance of neuro-navigation...
November 1, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29076420/antiepileptic-treatment-strategy-in-vascular-malformations
#20
Dimitrios Giakoumettis, Konstantinos Margetis, George Stranjalis, Nikolaos Haliasos, Theodoros G Papaioannou, Marios S Themistocleous
BACKGROUND: Antiepileptic treatment strategy plays an important role in the management of intracranial vascular malformations. The intracranial vascular malformations can be divided into cavernous hemangiomas, arteriovenous malformations, developmental venous anomalies and capillary telangiectasias. Seizures and hemorrhage are among their most common clinical manifestations. OBJECTIVE: The aim of this article is to review the current literature on the antiepileptic treatment in the setting of intracranial vascular malformations and offer an updated view on when antiepileptic drug treatment should be employed for each type of vascular malformation...
October 27, 2017: Current Pharmaceutical Design
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