keyword
MENU ▼
Read by QxMD icon Read
search

Cerebral arteriovenous malformation

keyword
https://www.readbyqxmd.com/read/29307022/fluorescein-videoangiography-during-extracranial-to-intracranial-bypass-surgery-preliminary-results
#1
Alessandro Narducci, Julia Onken, Marcus Czabanka, Nils Hecht, Peter Vajkoczy
BACKGROUND: Over the last years, intraoperative use of fluorescein is gaining ground in the field of neurosurgery, due to development of a microscope-integrated YELLOW 560 module, with reported experiences in brain malignancies, aneurysms, and arteriovenous malformation surgery. The aim of this study is to determine the feasibility and value of fluorescein videoangiography during bypass procedures. METHODS: The authors enrolled 11 patients who underwent extracranial-to-intracranial bypass for moyamoya disease, atherosclerotic steno-occlusive cerebrovascular disease, and flow replacement during a giant middle cerebral artery (MCA) aneurysm treatment...
January 6, 2018: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29298459/embolisation-for-pulmonary-arteriovenous-malformation
#2
REVIEW
Charlie C-T Hsu, Gigi Nc Kwan, Hannah Evans-Barns, Mieke L van Driel
BACKGROUND: Pulmonary arteriovenous malformations are abnormal direct connections between the pulmonary artery and pulmonary vein which result in a right-to-left shunt. They are associated with substantial morbidity and mortality mainly from the effects of paradoxical emboli. Potential complications include stroke, cerebral abscess, pulmonary haemorrhage and hypoxaemia. Embolisation is an endovascular intervention based on the occlusion of the feeding arteries the pulmonary arteriovenous malformations thus eliminating the abnormal right-to-left-shunting...
January 4, 2018: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29291536/skeletonization-method-for-vessel-delineation-of-arteriovenous-malformation
#3
D Babin, A Pižurica, L Velicki, V Matić, I Galić, H Leventić, V Zlokolica, W Philips
Cerebral arteriovenous malformation (AVM) presents a great health threat due to its high probability of rupture that can cause severe brain damage. Image segmentation alone is not sufficient to support AVM embolization procedure. In order to successfully navigate the catheter and perform embolization, the segmented blood vessels need to be classified into feeding arteries, draining veins and the AVM nidus. For this reason we address here the AVM localization and vessel decomposition problem. We propose in this paper a novel AVM localization and vessel delineation method using ordered thinning-based skeletonization...
December 19, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/29281075/transvenous-curative-embolization-of-cerebral-arteriovenous-malformations-a-prospective-cohort-study
#4
George A C Mendes, M Yashar S Kalani, Christina Iosif, Adson F Lucena, Rui Carvalho, Suzana Saleme, Charbel Mounayer
BACKGROUND: Curative transvenous embolization is an emerging strategy for treatment of cerebral arteriovenous malformations (AVMs). OBJECTIVE: To assess contemporary outcomes of transvenous embolization as a stand-alone therapy for cerebral AVMs. METHODS: We prospectively followed 40 patients with 41 AVMs who underwent transvenous endovascular therapy between January 2008 and January 2015. Patient demographics, AVM characteristics, endovascular techniques used, angiographic results, clinical outcomes, and complications were assessed independently...
December 21, 2017: Neurosurgery
https://www.readbyqxmd.com/read/29274362/a-new-time-resolved-3d-angiographic-technique-4d-dsa-description-and-assessment-of-its-reliability-in-spetzler-martin-grading-of-cerebral-arteriovenous-malformations
#5
Julien Ognard, Elsa Magro, Jildaz Caroff, Douraied Ben Salem, Sebastien Andouard, Michel Nonent, Jean-Christophe Gentric
BACKGROUND AND PURPOSE: The Spetzler and Martin (SM) cerebral arteriovenous malformation (AVM) classification is a widely used 5-tier classification. This common language allows specialists to exchange about AVMs and must be reliably characterized by the imaging methods. We presented an agreement study on a new method of digital subtracted 3D rotational angiography resolved in time (four-dimensional DSA: 4D DSA) compared to the gold standard (two-dimensional digital DSA: 2D DSA) in AVM grading using the SM classification...
December 20, 2017: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/29258932/rupture-risk-of-cerebral-arteriovenous-malformations-during-pregnancy-and-puerperium-a-single-center-experience-and-pooled-data-analysis
#6
Deyuan Zhu, Puyuan Zhao, Nan Lv, Qiang Li, Yibin Fang, Zhe Li, Hongjian Zhang, Guoli Duan, Bo Hong, Yi Xu, Jianmin Liu, Qinghai Huang
BACKGROUND AND PURPOSE: Whether the rupture risk of cerebral arteriovenous malformation (AVM) is higher during pregnancy and puerperium remains controversial. This study aimed to compare the risk of rupture in pregnant and non-pregnant female patients with AVM in a singer-center series and assess current evidence regarding the rupture risk of AVM during pregnancy and puerperium by pooled data analysis. METHODS: We retrospectively reviewed female patients with AVM in our center from January 2006 to August 2017...
December 16, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29249075/the-characteristics-of-transcranial-color-coded-duplex-sonography-in-children-with-cerebral-arteriovenous-malformation-presenting-with-headache
#7
Vlasta Duranovic, Katarina Vulin, Ivana Dakovic, Jasna Lenicek Krleza, Sanja Delin, Ivana Galinovic, Josip Marjanovic, Ana Tripalo Batos, Zdenka Plesa Premilovac, Vlatka Mejaski Bosnjak
PURPOSE: Cerebral arteriovenous malformations (AVM) are uncommon lesions. They are most often presented in childhood as intracranial hemorrhage. The aim of this report is to present the use of transcranial color-coded duplex sonography (TCCS) in detection of AVMs in children suffering headache. METHODS: This report describes five pediatric patients with headache and cerebral AVM which were initially discovered by TCCS. Diagnosis was confirmed by magnetic resonance imaging and digital subtraction angiography...
December 16, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/29193609/endogenous-hormone-2-methoxyestradiol-suppresses-venous-hypertension-induced-angiogenesis-through-up-and-down-regulating-p53-and-id-1
#8
Xiang Zou, Li Zhang, Jie Yuan, Chunjie Yang, Zehan Wu, Jianping Song, Wei Zhu, Ying Mao, Liang Chen
Brain arteriovenous malformations (AVMs) which associate with angiogenesis due to local hypertension, chronic cerebral ischaemia and tissue hypoxia usually lead to haemorrhage, however, the therapeutic medicine for the disease is still lacking. 2-methoxyestradiol (2-ME) has been shown effective in the anti-angiogenic treatment. This study was conducted to examine whether and how 2-ME could improve the vascular malformations. Intracranial venous hypertension (VH) model produced in adult male Sprague-Dawley rats and culture of human umbilical vein endothelial cells (HUVECs) at the anoxia condition were used to induce in vivo and in vitro angiogenesis, respectively...
November 29, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29190619/ruptured-de-novo-aneurysm-following-gamma-knife-surgery-for-arteriovenous-malformation-case-report
#9
Yun-Sik Dho, Dong Gyu Kim, Hyun-Tai Chung
Stereotactic radiosurgery is a well-known treatment tool for arteriovenous malformations (AVMs). The method has high validity and minimal invasiveness, but late-onset problems involving tumor formation and vasculopathy induced by radiation have been reported. We present a rare case of a radiation-induced ruptured de novo aneurysm following Gamma Knife surgery (GKS) for an AVM. A 17-year-old, right-handed male underwent GKS for AVM at the left parietal lobe. After 3 years, a follow-up angiogram showed a residual AVM at the angular gyrus...
December 1, 2017: Stereotactic and Functional Neurosurgery
https://www.readbyqxmd.com/read/29188165/diffusion-tensor-imaging-for-ruptured-cerebral-arteriovenous-malformation
#10
Muhammad Waqas, Ayesha Siddiqui, Fatima Mubarak, Syed Ather Enam
Non-ruptured arteriovenous malformations (AVMs) rarely cause tract disruption. Few studies have described how ruptured AVMs influence white matter (WM) tract morphology. We reviewed consecutive AVM cases treated at a tertiary care hospital where diffusion tensor imaging (DTI) tractography was obtained preoperatively. DTI was performed using the Synaptive Plan (Synaptive Medical Inc., Toronto, Canada). Quality control was performed by clinical application specialist. Perinidal fractional anisotropy (FA) value of corticospinal tracts (CST) was obtained...
September 28, 2017: Curēus
https://www.readbyqxmd.com/read/29184045/cerebral-arteriovenous-malformation-draining-vein-stenosis-is-associated-with-atherosclerotic-risk-factors
#11
Nasya Mendoza-Elias, Sophia F Shakur, Fady T Charbel, Ali Alaraj
OBJECTIVE: The pathogenesis of venous outflow stenosis associated with cerebral arteriovenous malformation (AVM) draining veins is poorly understood. We sought to determine the relationship between venous stenosis and atherosclerotic risk factors. MATERIALS AND METHODS: All patients with an AVM seen at our institution between 1990 and 2016 were retrospectively reviewed. Patients <18 years of age were excluded. Patients were classified into two groups based on the presence or absence of venous stenosis...
November 28, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/29159152/cranial-nerve-palsy-after-onyx-embolization-as-a-treatment-for-cerebral-vascular-malformation
#12
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/29158938/orthodeoxia-without-platypnea-in-hereditary-hemorrhagic-telangiectasia-in-the-presence-of-a-cerebral-abscess-and-multiple-pulmonary-arteriovenous-malformations-unusual-complications-and-transcatheter-endovascular-treatment
#13
Carlos Salazar, Jacky Bruce Blank, Veronica Palmero
Hereditary hemorrhagic telangiectasia is a rare autosomal-dominant condition affecting visceral blood vessel development. Cerebral and most commonly pulmonary arteriovenous malformations are found in the majority of symptomatic patients. The most common complications include embolic strokes and cerebral abscesses, which have been attributed to abnormal vessel communications. Platypnea orthodeoxia is a rare condition that presents dyspnea and oxygen desaturation when adopting an upright position and is relieved on decubitus...
2017: Case Reports in Pulmonology
https://www.readbyqxmd.com/read/29155706/comprehensive-endovascular-and-open-surgical-management-of-cerebral-arteriovenous-malformations
#14
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/29154751/the-etiology-of-spontaneous-intracerebralhemorrhage-insights-from-a-neuropathological-series
#15
Luis Ruano, Mariana Branco, Raquel Samões, Ricardo Taipa, Manuel Melo Pires
The etiology of intracerebral hemorrhage (ICH) is frequently undetermined. We aimed to assess the impact of the neuropathological study on the etiologic diagnosis of ICH. Patients with ICH admitted to a tertiary hospital in the last 14 years were identified, and histological samples of surgically-drained ICH were retrieved. Blinded from neuropathological results, a clinical etiology was hypothesized. Pathological samples were reviewed, and immunohistochemistry study for β-amyloid was performed in all the cases where structural abnormalities were not identified...
November 20, 2017: Clinical Neuropathology
https://www.readbyqxmd.com/read/29153848/-maternal-death-by-stroke-results-from-the-french-enquiry-into-maternal-deaths-2010-2012
#16
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/29139152/giant-intracranial-arteriovenous-malformation-as-the-focus-of-epileptic-seizures
#17
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/29137915/first-line-direct-access-for-transarterial-embolization-of-a-dural-arteriovenous-fistula-case-report-and-literature-review
#18
Brent J Doolan, Iddo Paldor, Peter J Mitchell, Andrew P Morokoff
Intracranial dural arteriovenous fistulae (DAVF) are complex vascular malformations consisting of a pathological shunt located between meningeal arteries and drainage to dural venous sinuses and/or cerebral veins. We report an unusual anatomical variation, resulting in a DAVF forming between the superior sagittal sinus and an anomalous origin of the middle meningeal artery (MMA) arising from the left ophthalmic artery. We present an atypical case requiring mini-craniotomy for catheter access, as well as cannulation of extracranial arterial supply prior to embolization of a Cognard type IIa+b fistula...
November 11, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/29133539/validation-of-the-ottawa-subarachnoid-hemorrhage-rule-in-patients-with-acute-headache
#19
MULTICENTER STUDY
Jeffrey J Perry, Marco L A Sivilotti, Jane Sutherland, Corinne M Hohl, Marcel Émond, Lisa A Calder, Christian Vaillancourt, Venkatesh Thirganasambandamoorthy, Howard Lesiuk, George A Wells, Ian G Stiell
BACKGROUND: We previously derived the Ottawa Subarachnoid Hemorrhage Rule to identify subarachnoid hemorrhage (SAH) in patients with acute headache. Our objective was to validate the rule in a new cohort of consecutive patients who visited an emergency department. METHODS: We conducted a multicentre prospective cohort study at 6 university-affiliated tertiary-care hospital emergency departments in Canada from January 2010 to January 2014. We included alert, neurologically intact adult patients with a headache peaking within 1 hour of onset...
November 13, 2017: CMAJ: Canadian Medical Association Journal, Journal de L'Association Medicale Canadienne
https://www.readbyqxmd.com/read/29125025/choroid-plexus-avm-with-anomalous-origin-of-the-capsulothalamic-artery-a-case-report
#20
Shigeru Yamauchi, Taichiro Kawakami, Keiji Murata, Tomoya Ishiguro, Hidetoshi Ikeda, Akimasa Nishio
Background and importance Traditionally, it has been believed that the plexal segment of the anterior choroidal artery (AChoA) can be sacrificed safely. Here, we present a case of choroid plexus arteriovenous malformation (AVM) in which the capsulothalamic artery originated from distal plexal segment of the AChoA. Clinical presentation A 45-year-old man was diagnosed with arteriovenous malformation involving the left inferior horn in screening MRI. Preceding stereotactic radiosurgery, transarterial target embolization was performed...
January 1, 2017: Interventional Neuroradiology
keyword
keyword
48672
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"