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Cerebral arteriovenous malformation

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https://www.readbyqxmd.com/read/28914868/-combination-treatment-of-cerebral-arteriovenous-malformations-using-endovascular-and-microsurgical-techniques
#1
D M Galaktionov, A V Dubovoy, V S Kiselev, A O Sosnov, K S Ovsyannikov, A M Perfil'ev, A V Cherepanov
MATERIAL AND METHODS: The study included 40 patients with cerebral AVMs. In the study group, 14 (35%) patients underwent microsurgical resection without preliminary embolization (1st group), and 26 (65%) patients underwent combined treatment (endovascular embolization and microsurgical intervention, 2nd group). The first group included patients with S&M grade I-III AVMs, and the second group included patients with S&M grade II-V AVMs. Treatment outcomes were evaluated with allowance for completeness of AVM resection, operative blood loss, duration of surgery, changes in clinical and neurological impairments according to the modified Rankin scale, and rate of neurological and surgical complications...
2017: Zhurnal Voprosy Neĭrokhirurgii Imeni N. N. Burdenko
https://www.readbyqxmd.com/read/28904828/usefulness-of-dural-surface-tracing-of-the-cortical-vessels-with-indocyanine-green-videoangiography-just-prior-to-dural-opening-for-various-cerebrovascular-diseases
#2
Naoki Otani, Kojiro Wada, Terushige Toyooka, Satoru Takeuchi, Arata Tomiyama, Kentaro Mori
BACKGROUND: Indocyanine green (ICG) videoangiography can be used to delineate the locations of the cortical vessels just prior to dural opening, allowing safe and optimal dural opening. The present clinical series demonstrates the adjunct use of ICG videoangiography to optimize dural opening for the treatment of various cerebrovascular diseases. METHODS: A total of 45 patients underwent surgery for superficial temporal artery-middle cerebral artery bypass (40), arteriovenous malformation (2), and dural arteriovenous fistula (3) between January 2012 and December 2016...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28893127/successful-presurgical-endovascular-management-of-venous-sinus-thrombosis-associated-with-high-grade-cerebral-arteriovenous-malformation-a-case-report
#3
Yoshinari Osada, Hidenori Endo, Kenichi Sato, Yasushi Matsumoto, Toshiki Endo, Miki Fujimura, Teiji Tominaga
We report a case of a 39-year-old man presenting with a high-grade left parieto-occipital arteriovenous malformation (AVM) complicated by superior sagittal sinus (SSS) stenosis, seven years after the first presentation. Magnetic resonance imaging revealed a newly developed perilesional edema. Venous sinus stenosis acutely progressed to occlusion and induced multiple intracerebral hemorrhages. An emergent balloon venoplasty of the SSS successfully recanalized the thrombosed sinus. Further, multistage transarterial nidus embolization was performed followed by surgical resection, resulting in a complete eradication of the large AVM...
January 1, 2017: Interventional Neuroradiology
https://www.readbyqxmd.com/read/28871374/clinical-outcomes-and-radiosurgical-considerations-for-pediatric-arteriovenous-malformation-influence-of-clinical-features-on-obliteration-rate
#4
Chang Kyu Park, Seok Keun Choi, Sung Ho Lee, Man Kyu Choi, Young Jin Lim
PURPOSE: Gamma knife radiosurgery (GKRS) is an established treatment modality for brain arteriovenous malformation (AVM), but there have been few published studies examining the relationship between clinical features of AVM and successful obliteration with GKRS in pediatric patients. In the current study, we investigate the outcomes of GKRS for pediatric patients with brain AVM and analyze the variables that influence obliteration. METHODS: We analyzed 68 pediatric patients (≤ 18 years) with a mean follow-up period of 61...
September 4, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28860105/ascertaining-the-value-of-noninvasive-measures-obtained-using-color-duplex-ultrasound-and-central-aortic-pressure-monitoring-during-the-management-of-cerebral-arteriovenous-malformation-resection-protocol-for-a-prospective-case-control-pilot-study
#5
Kathryn J Busch, Hosen Kiat
BACKGROUND: Dramatic hemodynamic changes occur upon removal of an arteriovenous malformation of the brain (bAVM) with a number of potentially serious perioperative complications, such as intracranial hemorrhage and venous occlusive hypertensive syndrome. As these complications largely occur in the postoperative inpatient period, a rapid, repeatable noninvasive investigation to serially monitor relevant intracranial hemodynamics may be of benefit. Though, transcranial Doppler (TCD) and transcranial color duplex (TCCD) are techniques used and available to provide hemodynamic measurements postoperatively, the time course of hemodynamic sequences following bAVM resection remains uncertain...
August 31, 2017: JMIR Research Protocols
https://www.readbyqxmd.com/read/28830640/the-radical-combined-approach-in-cerebral-arteriovenous-malformation-treatment-technical-note
#6
Umit Kocaman, Tayfun Dalbasti, Utku Mahir Yildirim, Hakan Yilmaz
AVMs are vessel anomalies where a connection between arterial and venous systems is present and the capillary bed is absent between the two. AVMs tend to present with seizures, headaches, focal neurological deficits and hemorrhage. Hemorrhage is the most common form of presentation. AVM's have a 2-4% annual risk of hemorrhage. Certain studies report this rate as 1%. The greatest discussion in AVM treatment is whether to use interventional treatment or monitor with medical treatment. There are 3 modalities that can be used for interventional treatment; microsurgical resection, endovascular embolization and stereotactic radiosurgery...
August 12, 2017: Neurologia i Neurochirurgia Polska
https://www.readbyqxmd.com/read/28830253/evaluation-of-obliteration-of-arteriovenous-malformations-after-stereotactic-radiosurgery-with-arterial-spin-labeling-mr-imaging
#7
Toshiaki Kodera, Yoshikazu Arai, Hidetaka Arishima, Yoshifumi Higashino, Makoto Isozaki, Kenzo Tsunetoshi, Ken Matsuda, Ryuhei Kitai, Kazuhiro Shimizu, Nobuyuki Kosaka, Tatsuya Yamamoto, Hiroki Shioura, Hirohiko Kimura, Ken-Ichiro Kikuta
PURPOSE: Complete obliteration of treated arteriovenous malformations (AVMs) can be diagnosed only by confirming the disappearance of arterio-venous (A-V) shunts with invasive catheter angiography. The authors evaluated whether non-invasive arterial spin labeling (ASL) magnetic resonance (MR) imaging can be used to diagnose the obliteration of AVMs facilitate the diagnosis of AVM obliteration after treatment with stereotactic radiosurgery (SRS). MATERIAL AND METHODS: Seven patients with a cerebral AVM treated by SRS were followed up with ASL images taken with a 3T-MR unit, and received digital subtraction angiography (DSA) after the AVM had disappeared on ASL images...
August 22, 2017: British Journal of Neurosurgery
https://www.readbyqxmd.com/read/28820225/bilateral-thalamic-edema-from-coexisting-choroid-plexus-arteriovenous-malformation-and-sinus-thrombosis-case-report
#8
Ryan B Kochanski, Andrew K Johnson, Roham Moftakhar
Bilateral thalamic dysfunction secondary to venous congestion may result from either venous sinus thrombosis or high flow arteriovenous malformations or a combination of both. We present a case of bilateral thalamic edema resulting from concomitant choroid plexus arteriovenous malformation (AVM) and straight sinus thrombosis and describe our treatment approach. The patient presented with several weeks of progressive confusion and memory deficits. Magnetic resonance imaging and venography (MRI/ MRV) showed bilateral thalamic T2 hyperintensities and straight sinus thrombosis...
2017: Turkish Neurosurgery
https://www.readbyqxmd.com/read/28768818/sofia-intermediate-catheter-and-the-snake-technique-safety-and-efficacy-of-the-sofia-catheter-without-guidewire-or-microcatheter-construct
#9
Jeremy J Heit, Johnny Hy Wong, Adrienne M Mofaff, Nicholas A Telischak, Robert L Dodd, Michael P Marks, Huy M Do
BACKGROUND: Neurointerventional surgeries (NIS) benefit from supportive endovascular constructs. Sofia is a soft-tipped, flexible, braided single lumen intermediate catheter designed for NIS. Sofia advancement from the cervical to the intracranial circulation without a luminal guidewire or microcatheter construct has not been described. OBJECTIVE: To evaluate the efficacy and safety of the new Sofia Non-wire Advancement techniKE (SNAKE) for advancement of the Sofia into the cerebral circulation...
August 2, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28746188/antenatal-diagnosis-and-prognostic-factors-of-aneurysmal-malformation-of-the-vein-of-galen-a-case-report-and-literature-review
#10
REVIEW
Doru Herghelegiu, Cringu A Ionescu, Irina Pacu, Roxana Bohiltea, Catalin Herghelegiu, Simona Vladareanu
RATIONALE: Vein of Galen aneurysmal malformation (VGAM) is a rare complex malformation of the cerebral vascular system consisting of arteriovenous shunts between the vein of Galen and the cerebral arteries. PATIENT CONCERNS: We present the case of a 31-year-old pregnant woman, para 1, gravida 1. DIAGNOSES: At 26 weeks' gestation who was examined for an anechoic mass on the cerebral median midline with color and pulsed Doppler. She presented with positive flow on the color and pulsed Doppler test, associated with hydrocephalus, cortical hypoplasia, cardiomegaly, jugular vein distension...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28744689/pediatric-cerebellar-giant-cavernous-malformation-case-report-and-review-of-literature
#11
Javier Villaseñor-Ledezma, Marcelo Budke, Juan-Antonio Alvarez-Salgado, María-Angeles Cañizares, Luis Moreno, Francisco Villarejo
BACKGROUND AND IMPORTANCE: Giant cavernous malformations (GCM) are low flow, angiographically occult vascular lesions, with a diameter >4 cm. Cerebellar GCMs are extremely rare, with only seven cases reported based on English literature. These lesions are most commonly seen in the pediatric age group, which is known to have an increased risk of hemorrhage, being surgery clearly recommended. CLINICAL PRESENTATION: An 18-month-old girl presented with a 6-month history of cervical torticollis and upper extremities clumsiness...
July 25, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28740770/versatility-of-the-latissimus-dorsi-free-flap-during-the-treatment-of-complex-postcraniotomy-surgical-site-infections
#12
Nobutaka Yoshioka
BACKGROUND: Some intractable cases of postcraniotomy infection, which can involve compromised skin, an open frontal air sinus, and residual epidural dead space, have been reported. In such cases, reconstructing the scalp and skull is challenging. METHODS: Between 2009 and 2016, the author treated 12 patients with recalcitrant postcraniotomy surgical site infections with latissimus dorsi (LD) free flaps. The patients' ages ranged from 37 to 79 years (mean, 63.5 years), and their underlying diseases included subarachnoid hemorrhaging (n = 5), brain tumors (n = 4), and cerebral arteriovenous malformations (n = 3)...
June 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28735438/adenosine-assisted-neurovascular-surgery-initial-case-series-and-review-of-literature
#13
REVIEW
Alaa Al-Mousa, Gahan Bose, Katharine Hunt, Ahmed K Toma
Cerebral aneurysms in complex anatomical locations and intraoperative rupture of aneurysms are challenging for neurosurgeons and anaesthetists alike. Mechanical and non-mechanical methods to reduce blood flow into aneurysms are well-recognised techniques to facilitate aneurysm exclusion from the circulation. Mechanical methods like temporary clipping of parent arteries, carotid artery ligation and endovascular balloon occlusion are commonly used in clinical practice. However, non-mechanical techniques such as rapid ventricular pacing and adenosine-induced cardiac standstill with hypotension are still emerging strategies...
July 22, 2017: Neurosurgical Review
https://www.readbyqxmd.com/read/28735125/management-of-arteriovenous-malformations-associated-with-developmental-venous-anomalies-a-literature-review-and-report-of-two-cases
#14
Michael Zhang, Ian D Connolly, Mario K Teo, George Yang, Robert Dodd, Michael Marks, Mario Zuccarello, Gary K Steinberg
OBJECTIVE: Cerebrovascular malformation classification has revealed intermediary lesions that warrant further review due to their unusual presentation and management. We present two cases of arteriovenous malformations (AVMs) associated with a developmental venous anomaly (DVA), and discuss the efficacy of previously published management strategies. METHODS: Two cases of AVMs associated with DVA were identified and a literature search for published cases between 1980 and 2016 was conducted...
July 19, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28731396/contralateral-posterior-interhemispheric-approach-to-deep-medial-parietooccipital-vascular-malformations-surgical-technique-and-results
#15
Jan-Karl Burkhardt, Ethan A Winkler, Michael T Lawton
OBJECTIVE Deep medial parietooccipital arteriovenous malformations (AVMs) and cerebral cavernous malformations (CCMs) are traditionally resected through an ipsilateral posterior interhemispheric approach (IPIA), which creates a deep, perpendicular perspective with limited access to the lateral margins of the lesion. The contralateral posterior interhemispheric approach (CPIA) flips the positioning, with the midline positioned horizontally for retraction due to gravity, but with the AVM on the upper side and the approach from the contralateral, lower side...
July 21, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28730314/spontaneous-thrombosis-of-a-giant-cerebral-varix-in-a-pediatric-patient
#16
Mesut Ozturk, Serdar Aslan, Meltem Ceyhan Bilgici, Aysegul Idil Soylu, Keramettin Aydin
INTRODUCTION: Cerebral cortical venous aneurysm also known as cerebral varix is a rare entity that usually occurs in relation to high-flow draining veins of arteriovenous fistulas, arteriovenous malformations, and venous angioma. Isolated cerebral varix is an extremely rare entity. CASE REPORT: We present a 1-year-old male with isolated cerebral varix. During follow-up, the varix thrombosed spontaneously without causing any neurological deficits. CONCLUSION: To the best of our knowledge, spontaneous asymptomatic thrombosis of an isolated cerebral varix without any clinical finding was reported for the first time in the literature...
July 20, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28711531/transdural-indocyanine-green-videography-for-sta-mca-bypass-technical-note
#17
Hiroshi Yokota, Taiji Yonezawa, Tomonori Yamada, Seisuke Miyamae, Taekyun Kim, Yoshiaki Takamura, Katsuya Masui, Shuta Aketa
BACKGROUND: Neurosurgical application of indocyanine green (ICG) videography prior to performing a dural opening has been reported as transdural ICG videography and used during surgery of meningiomas associated with venous sinuses, as well as cranial and spinal arteriovenous malformations. However, its use for a superficial temporal artery to middle cerebral artery (STA-MCA) bypass has not been reported. METHODS: We performed a retrospective analysis of medical records of patients who underwent a transdural ICG videography technique during STA-MCA bypass procedures performed between January 2012 and March 2015...
July 12, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28691576/time-resolved-computed-tomography-angiography-in-the-evaluation-of-brain-arteriovenous-malformation-a-feasibility-study
#18
Rupinder Singh, Vivek Gupta, Chirag Ahuja, Niranjan Khandelwal
Background and purpose Digital subtraction angiography is the current gold standard for diagnosing as well as the follow-up of cerebral arteriovenous malformations. However, as it is invasive, relatively expensive and time-consuming, a non-invasive alternative is of interest. We aimed to evaluate the feasibility of time resolved computed tomography angiography (TR-CTA) in a series of five diagnosed cranial arteriovenous malformation patients, demonstrated by conventional digital subtraction angiography with respect to acquisition, depiction of angiographic phases and radiation exposure...
January 1, 2017: Neuroradiology Journal
https://www.readbyqxmd.com/read/28681423/multi-stage-stereotactic-radiosurgery-for-large-cerebral-arteriovenous-malformations-using-the-gamma-knife-platform
#19
Chuxiong Ding, Brian Hrycushko, Louis Whitworth, Xiang Li, Lucien Nedzi, Bradley Weprin, Ramzi Abdulrahman, Babu Welch, Steve B Jiang, Zabi Wardak, Robert D Timmerman
PURPOSE: Radiosurgery is an established technique to treat Cerebral Arteriovenous Malformations (AVMs). Obliteration of larger AVMs (>10-15 cm(3) or diameter > 3 cm) in a single session is challenging with current radiosurgery platforms due to toxicity. We present a novel technique of multi-stage stereotactic radiosurgery (SRS) for large intracranial arteriovenous malformations (AVM) using the Gamma Knife system. MATERIALS/METHODS: Eighteen patients with large (>10-15 cm(3) or diameter ⩾3 cm) AVMs, which were previously treated using a staged SRS technique on the Cyberknife platform, were retrospectively selected for this study...
July 6, 2017: Medical Physics
https://www.readbyqxmd.com/read/28676978/intracranial-artery-to-artery-spontaneous-revascularization-in-a-child
#20
Prakash Muthusami, Timo Krings, Charles Raybaud, Peter Dirks, Manohar M Shroff
INTRODUCTION: Intracranial artery-to-artery antegrade revascularization is a poorly recognized entity, more so when it involves main stem arteries. The etiology, appearance, and significance of this condition are not described in the literature. CASE PRESENTATION: We describe a case of spontaneous revascularization of a chronically occluded middle cerebral arterial branch by collaterals from the proximal segment reconstituting distal flow, mimicking a brain arteriovenous malformation in a 9-year old boy...
July 4, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
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