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Intracranial AVM

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https://www.readbyqxmd.com/read/28521439/arteriovenous-malformation-and-thyroid-metastasis-from-underlying-renal-cell-carcinoma-an-unusual-presentation-of-malignancy-a-case-report
#1
H J Albandar, E S Roberto, J R H See, J H Sabiers
Renal Clear Cell Carcinoma (RCC) comprises over 80% of renal malignancies in adults. Thyroid gland metastasis is rare in RCC. Few studies have described cases of RCC mistaken for benign arteriovenous malformation (AVM). To the best of our knowledge, an AVM arising from underlying RCC metastasis to the brain has not yet been reported. The current study presents a case of RCC metastasis to the thyroid gland, with an AVM identified to be a result of metastatic involvement in the brain. A 45-year-old African-American female presented with left-sided weakness, slurred speech, facial droop and seizure...
May 2017: Oncology Letters
https://www.readbyqxmd.com/read/28521353/intraoperative-angiography-for-arteriovenous-malformation-resection-in-the-prone-and-lateral-positions-using-upper-extremity-arterial-access
#2
Erez Nossek, David J Chalif, Razvan Buciuc, Eric J Gandras, Erich G Anderer, Sal Insigna, Amir R Dehdashti, Avi Setton
BACKGROUND: Intraoperative angiography is routinely utilized for aneurysms and arteriovenous malformations (AVMs) to verify complete occlusion and resection. Surgery for spinal and posterior fossa neurovascular lesions is usually performed in prone position. Intraoperative angiography in the prone position is challenging and there is no standardized protocol for this procedure. OBJECTIVE: To describe our experience with intraoperative angiography in the prone and lateral positions, using upper extremity arterial access...
June 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28495425/volume-staged-stereotactic-radiosurgery-for-large-intracranial-arteriovenous-malformations
#3
Adeel Ilyas, Dale Ding, H Robert Hixson, Zhiyuan Xu, Robert M Starke, Jason P Sheehan
Stereotactic radiosurgery (SRS) is an effective treatment option for intracranial arteriovenous malformations (AVM). However, the treatment of large AVMs (nidus volume ≥12cm(3)) with single-session SRS alone yields generally poor outcomes. Volume-staged SRS (VS-SRS) is a therapeutic strategy for large AVMs which seeks to avoid the disadvantages of single-session SRS, but reports regarding its efficacy remain limited. The aim of this retrospective cohort study is to assess the outcomes of VS-SRS for large AVMs...
May 8, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28475722/comparison-of-hemorrhagic-risk-in-intracranial-arteriovenous-malformations-between-conservative-management-and-embolization-as-the-single-treatment-modality
#4
Wuyang Yang, Jose L Porras, Risheng Xu, Maria Braileanu, Syed Khalid, Alice L Hung, Justin M Caplan, Tomas Garzon-Muvdi, Xiaoming Rong, Geoffrey P Colby, Alexander L Coon, Rafael J Tamargo, Judy Huang
BACKGROUND: Embolization has been discussed as a feasible single modality treatment for intracranial arteriovenous malformations (AVMs). OBJECTIVE: To compare hemorrhagic risk between embolization and conservative management in a multivariate survival analysis. METHODS: We retrospectively reviewed records of patients with intracranial AVMs evaluated at our institution from 1990 to 2013. We included patients recommended to undergo embolization without other treatment modalities and patients managed conservatively...
May 5, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28431043/male-gender-associated-with-post-treatment-seizure-risk-of-pediatric-arteriovenous-malformation-patients
#5
Wuyang Yang, Erick M Westbroek, Heather Anderson-Keightly, Justin M Caplan, Xiaoming Rong, Alice L Hung, Maria Braileanu, Joanna Y Wang, Geoffrey P Colby, Alexander L Coon, Rafael J Tamargo, Edward S Ahn, Judy Huang
BACKGROUND: Seizure risk has not been fully characterized in pediatric patients with arteriovenous malformations (AVMs). OBJECTIVE: To describe the progression and risk factors of post-treatment seizure in children with AVMs. METHODS: We retrospectively reviewed pediatric patients diagnosed with intracranial AVMs at our institution between 1990 and 2013. Clinical and angiographic variables were included in univariate and multivariate Cox proportional hazard models to explore risk factors associated with time-related seizure outcomes...
June 1, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28424268/favorable-outcome-in-patients-with-intracranial-hemorrhage-due-to-ruptured-brain-avm
#6
EDITORIAL
Dennis R Buis
No abstract text is available yet for this article.
April 19, 2017: Neurology
https://www.readbyqxmd.com/read/28421824/thrombosis-of-the-draining-vein-causes-intracranial-haemorrhage-in-the-natural-history-of-brain-arteriovenous-malformation-case-report
#7
Raita Fukaya, Katsuhiro Mizutani, Masahito Fukuchi, Koji Fujii
Rupture of arteriovenous malformations (AVM) may be caused by venous outflow restriction, but there is no radiographic evidence of this. We report a case showing only a venous thrombus preceding intracranial haemorrhage from AVM. This is the first evidence that venous thrombus results in AVM rupture in its natural history.
April 19, 2017: British Journal of Neurosurgery
https://www.readbyqxmd.com/read/28413072/progressive-regression-of-intracranial-arteriovenous-malformations-after-onyx-embolization
#8
Damian Kocur, Nikodem Przybyłko, Mariusz Hofman, Tomasz Jamróz, Hanna Doleżych, Jan Baron, Stanisław Kwiek
Progressive regression of cerebral arteriovenous malformations (AVMs) is a rare phenomenon that may occur spontaneously or after previous surgical or endovascular incomplete obliteration. We present two cases of AVMs occluded partially with Onyx followed by the unexpected cure of the lesions with the angiographic evidences as well as multiannual follow-up.
April 4, 2017: Neurologia i Neurochirurgia Polska
https://www.readbyqxmd.com/read/28377246/awake-surgery-for-brain-vascular-malformations-and-moyamoya-disease
#9
Rami James N Aoun, Mithun G Sattur, Chandan Krishna, Amen Gupta, Matthew E Welz, Allan D Nanney, Antoun H Koht, Matthew C Tate, Katherine H Noe, Joseph I Sirven, Barrett J Anderies, Patrick B Bolton, Terry L Trentman, Richard S Zimmerman, Kristin R Swanson, Bernard R Bendok
OBJECTIVE: While a significant amount of experience has accumulated for awake procedures for brain tumor, epilepsy and carotid surgery, its utility for intracranial neurovascular indications remains largely undefined. Awake surgery, for select neurovascular cases, offers the advantage of precise brain mapping and robust neurological monitoring during surgery for lesions in eloquent areas, avoidance of potential hemodynamic instability, and possible faster recovery. Additionally, it opens the window for perilesional epileptogenic tissue resection with potentially less risk for iatrogenic injury...
April 1, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28362923/volume-staged-stereotactic-radiosurgery-for-intracranial-arteriovenous-malformations-outcomes-based-on-an-18-year-experience
#10
Bruce E Pollock, Michael J Link, Scott L Stafford, Giuseppe Lanzino, Yolanda I Garces, Robert L Foote
BACKGROUND: Radiation-based treatment options of large intracranial arteriovenous malformations (AVM) must balance the likelihood of obliteration with the risk of adverse radiation effects (ARE). OBJECTIVE: To analyze the efficacy and risks of volume-staged stereotactic radiosurgery (VS-SRS) for AVM. METHODS: Retrospective study of 34 AVM patients having VS-SRS between 1997 and 2012. A median of 2 stages (range, 2-4) was used to treat a median AVM volume of 22...
April 1, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28345540/epidemiological-features-of-nontraumatic-spontaneous-subarachnoid-hemorrhage-in-china-a-nationwide-hospital-based-multicenter-study
#11
Jian-Ping Song, Wei Ni, Yu-Xiang Gu, Wei Zhu, Liang Chen, Bin Xu, Bin Leng, Yan-Long Tian, Ying Mao
BACKGROUND: Nontraumatic spontaneous subarachnoid hemorrhage (SAH) is associated with a high mortality. This study was conducted to investigate the epidemiological features of nontraumatic spontaneous SAH in China. METHODS: From January 2006 to December 2008, the clinical data of patients with nontraumatic SAH from 32 major neurosurgical centers of China were evaluated. Emergent digital subtraction angiography (DSA) was performed for the diagnosis of SAH sources in the acute stage of SAH (≤3 days)...
April 5, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28328006/clinical-experience-and-results-of-microsurgical-resection-of-arterioveonous-malformation-in-the-presence-of-space-occupying-intracerebral-hematoma
#12
Damiano G Barone, Hani J Marcus, Mathew R Guilfoyle, J Nicholas P Higgins, Nagui Antoun, Thomas Santarius, Rikin A Trivedi, Ramez W Kirollos
BACKGROUND: Management of ruptured arteriovenous malformations (AVMs) with a mass-producing intracerebral hematoma (ICH) represents a surgical dilemma. OBJECTIVE: To evaluate the clinical outcome and obliteration rates of microsurgical resection of AVM when performed concomitantly with evacuation of an associated space-occupying ICH. METHODS: Data of patients with AVM were collected prospectively. Cases were identified in which an AVM was resected and an associated space-occupying ICH was evacuated at the same time, and divided into "group 1," in which the surgery was performed acutely within 48 h of presentation (secondary to elevated intracranial pressure); and "group 2," in which selected patients were operated upon in the presence of a liquefying ICH in the "subacute" stage...
March 15, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28328005/incidence-and-management-of-late-adverse-radiation-effects-after-arteriovenous-malformation-radiosurgery
#13
Bruce E Pollock, Michael J Link, Megan E Branda, Curtis B Storlie
BACKGROUND: Late adverse radiation effects (ARE) typically occur many years after stereotactic radiosurgery (SRS) of intracranial arteriovenous malformations (AVM). They are characterized by perilesional edema or cyst formation and are distinct from radiation-induced changes (RIC) noted in the first 1 to 2 years after AVM SRS and radiation necrosis. OBJECTIVE: To determine the incidence of late ARE after AVM SRS. METHODS: Retrospective review of 233 AVM patients having SRS from 1990 to 2009...
February 23, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28324183/multimodality-management-and-outcomes-of-brain-arterio-venous-malformations-avms-in-children-personal-experience-and-review-of-the-literature-with-specific-emphasis-on-age-at-first-avm-bleed
#14
REVIEW
Anan Shtaya, John Millar, Owen Sparrow
PURPOSE: The purpose of this paper is to study the presentation and analyse the results of multimodality treatment of brain arterio-venous malformations (AVMs) in children at our centre and review age at first AVM rupture in the literature. METHODS: Of 52 patients aged <18 years, 47 with brain AVMs (27 males and 20 females) aged 4-17 years (mean 12.2) were retrospectively reviewed. PubMed search revealed five additional studies including 267 patients where the prevalence of age-related AVMs rupture was analysed...
April 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28323878/microsurgery-for-intracranial-arteriovenous-malformation-long-term-outcomes-in-445-patients
#15
Qingqing Ren, Min He, Yunhui Zeng, Zhiyong Liu, Hao Liu, Jianguo Xu
BACKGROUND: The management of intracranial arteriovenous malformations(AVMs) poses challenges to the cerebrovascular specialists. OBJECTIVE: To review the long-term outcomes of intracranial AVMs treated with microsurgical resections. METHODS: We performed a retrospective review of 445 patients with intracranial AVMs treated in our hospital from January 1st, 2008 to December 31st, 2014. The extracted data included demographic characteristics, clinical presentations, Spetzler-Martin (SM) grades, Supplemented Spetzler-Martin (SM-Supp) Grades, treatment modalities, long-term outcomes, and obliteration rates...
2017: PloS One
https://www.readbyqxmd.com/read/28289757/optimization-of-the-surgical-approach-in-avms-using-mri-and-4d-dsa-fusion-technique-a%C3%A2-technical-note
#16
S Tritt, B Ommer, S Gehrisch, S Klein, V Seifert, J Berkefeld, J Konczalla
PURPOSE: Previously published data demonstrated the possibility of displaying the angioarchitecture of intracranial vascular malformations using time-resolved 3D imaging (4D digital subtraction angiography [DSA]). The purpose of our study was to prove the technical feasibility of creating fused images of time-resolved 3D reconstructions and MPRAGE MRI data sets and to check the reliability of the correct anatomical display of the angioma nidus and the venous drainage in the fused images of patients with intracranial arteriovenous malformations (AVM)...
March 13, 2017: Clinical Neuroradiology
https://www.readbyqxmd.com/read/28283870/-dirty-coagulation-technique-as-an-alternative-to-microclips-for-control-of-bleeding-from-deep-feeders-during-brain-arteriovenous-malformation-surgery
#17
Danil A Kozyrev, Peeraphong Thiarawat, Behnam Rezai Jahromi, Patcharin Intarakhao, Joham Choque-Velasquez, Ferzat Hijazy, Mario K Teo, Juha Hernesniemi
BACKGROUND: Meticulous haemostasis is one of the most important factors during microneurosurgical resection of brain arteriovenous malformation (AVM). Controlling major arterial feeders and draining veins with clips and bipolar coagulation are well-established techniques, while managing with bleeding from deep tiny vessels still proves to be challenging. This technical note describes a technique used by the senior author in AVM surgery for last 20 years in dealing with the issue highlighted...
May 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28246008/compliance-of-systematic-reviews-articles-in-brain-arteriovenous-malformation-with-prisma-statement-guidelines-review-of-literature
#18
REVIEW
T Akhigbe, A Zolnourian, D Bulters
BACKGROUND: The knowledge of reporting compliance of systematic reviews with PRISMA guidelines may assist in improving the quality of secondary research in brain AVM management and subsequently application to patient population and clinical practice. This may allow researchers and clinicians to be equipped to appraise existing literatures based on known deficit to look for or expect. The objective of this study was to assess the compliance of systematic reviews and meta-analysis in the management of brain AVM...
May 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28132013/new-predictive-model-for-microsurgical-outcome-of-intracranial-arteriovenous-malformations-study-protocol
#19
Xianzeng Tong, Jun Wu, Yong Cao, Yuanli Zhao, Shuo Wang
INTRODUCTION: Although microsurgical resection is currently the first-line treatment modality for arteriovenous malformations (AVMs), microsurgery of these lesions is complicated due to the fact that they are very heterogeneous vascular anomalies. The Spetzler-Martin grading system and the supplementary grading system have demonstrated excellent performances in predicting the risk of AVM surgery. However, there are currently no predictive models based on multimodal MRI techniques. The purpose of this study is to propose a predictive model based on multimodal MRI techniques to assess the microsurgical risk of intracranial AVMs...
January 27, 2017: BMJ Open
https://www.readbyqxmd.com/read/28106499/retrospective-study-of-long-term-outcome-after-brain-arteriovenous-malformation-rupture-the-rap-score
#20
Eimad Shotar, Matthieu Debarre, Nader-Antoine Sourour, Federico Di Maria, Joseph Gabrieli, Aurélien Nouet, Jacques Chiras, Vincent Degos, Frédéric Clarençon
OBJECTIVE The authors aimed to design a score for stratifying patients with brain arteriovenous malformation (BAVM) rupture, based on the likelihood of a poor long-term neurological outcome. METHODS The records of consecutive patients with BAVM hemorrhagic events who had been admitted over a period of 11 years were retrospectively reviewed. Independent predictors of a poor long-term outcome (modified Rankin Scale score ≥ 3) beyond 1 year after admission were identified. A risk stratification scale was developed and compared with the intracranial hemorrhage (ICH) score to predict poor outcome and inpatient mortality...
January 20, 2017: Journal of Neurosurgery
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