keyword
MENU ▼
Read by QxMD icon Read
search

Cerebral avm

keyword
https://www.readbyqxmd.com/read/28711531/transdural-indocyanine-green-videography-for-sta-mca-bypass-technical-note
#1
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
#2
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
#3
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
#4
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
https://www.readbyqxmd.com/read/28669271/lateral-parietal-arteriovenous-malformation-with-feeding-artery-aneurysm
#5
Ashish H Shah, Anthony C Wang, Jacques J Morcos
Superficial arteriovenous malformations (AVMs) with favorable Spetzler-Martin grading are amenable to primary surgical resection. Careful preoperative workup including preoperative angiograms is essential to identify feeding artery aneurysms and deep venous drainage. The authors present a 37-year-old female who presented with a Spetzler-Martin Grade II right parietal superficial AVM with a 5-mm feeding artery aneurysm from the posterior cerebral artery. Given the risk of hemorrhage, the AVM was resected completely without any complications...
July 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/28669268/introduction-to-the-supratentorial-cerebral-arteriovenous-malformation-video-supplement
#6
Robert M Starke, Felipe C Albuquerque, Michael T Lawton
It is with great pleasure that we present this Neurosurgical Focus video supplement on supratentorial cerebral arteriovenous malformations (AVMs). We were privileged to view a remarkable number of outstanding videos demonstrating current state-of-the-art management of brain AVMs using endovascular and microsurgical modalities. Careful and critical review was required to narrow down the submitted videos to a workable volume for this supplement, which reflects the excellent work being done at multiple centers with these lesions...
July 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/28669265/contralateral-transcallosal-resection-of-a-ventricular-body-arteriovenous-malformation-3d-operative-video
#7
Brian P Walcott, Jae Seung Bang, Omar Choudhri, Sirin Gandhi, Halima Tabani, Arnau Benet, Michael T Lawton
A 46-year-old male presented with an incidentally discovered left ventricular body arteriovenous malformation (AVM). It measured 2 cm in diameter and had drainage via an atrial vein into the internal cerebral vein (Spetzler-Martin Grade III, Supplementary Grade 4). Preoperative embolization of the posterior medial choroidal artery reduced nidus size by 50%. Subsequently, he underwent a right-sided craniotomy for a contralateral transcallosal approach to resect the AVM. This case demonstrates strategic circumferential disconnection of feeding arteries (FAs) to the nidus, the use of aneurysm clips to control large FAs, and the use of dynamic retraction and importance of a generous callosotomy...
July 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/28669264/surgical-treatment-of-a-complex-grade-iii-spetzler-martin-posterior-temporal-arteriovenous-malformation
#8
Amrit Chiluwal, Amir R Dehdashti
Grade III Spetzler-Martin arteriovenous malformations (AVMs) are a distinct subgroup of brain AVMs. Their variety in terms of location, type of venous drainage, and size makes them the most heterogenous group in the AVM classification. The surgical risk of treatment is also variable depending on the specifics of a given Grade III AVM. In this video illustration, the authors describe the technical nuances of surgical resection of a very complex Grade III left posterior temporal AVM. According to supplementary grading, the unruptured aspect and patient age give this lesion a Grade III; therefore, the combined grading gives the patient a score of 6, which puts him at moderate risk of morbidity for surgery...
July 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/28669263/microsurgical-treatment-for-arteriovenous-malformation-of-the-corpus-callosum-and-choroidal-fissure
#9
Marcos Devanir Silva da Costa, Bruno Fernandes de O Santos, Felipe Bouchabki de Almeida Guardini, Feres Chaddad-Neto
The management of arteriovenous malformations (AVMs) of the corpus callosum and choroidal fissure is challenging because they commonly receive arterial feeders from the anterior and posterior circulation, and drain to deep veins. In this video the authors present the case of a 20-year-old man who presented with acute onset of headache, loss of consciousness, and nuchal rigidity. Computed tomography, MRI, and cerebral angiography performed in tandem revealed a ruptured, large, Grade IV AVM of the corpus callosum and choroidal fissure with two groups of arterial feeders: one from the pericallosal artery and the other from the medial and lateral posterior choroidal arteries...
July 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/28669262/the-paramedian-supracerebellar-transtentorial-approach-to-remove-a-posterior-fusiform-gyrus-arteriovenous-malformation
#10
Mehmet Volkan Harput, Uğur Türe
This is the case of a 14-year-old female who presented with headache and seizures. Cranial magnetic resonance imaging revealed an arteriovenous malformation (AVM) located at the posterior portion of the right-sided fusiform gyrus. Cerebral angiography showed that the AVM was fed mainly by branches from the inferior temporal trunk of the posterior cerebral artery. The main venous drainage was to the right transverse sinus through the tentorial vein. The AVM was totally excised through the paramedian supracerebellar-transtentorial approach with the patient in a semisitting position...
July 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/28652950/highlights-on-cerebral-arteriovenous-malformation-treatment-using-combined-embolization-and-stereotactic-radiosurgery-why-outcomes-are-controversial
#11
REVIEW
Faustina N A Sackey, Nathaneal R Pinsker, Benjamin N Baako
Cerebral arteriovenous malformations (AVMs) are abnormal tangling between brain arteries and veins causing an arteriovenous shunt called nidus with an intervening network of vessels from the region of formation and spans through the brain. AVM effect is debilitating to the affected individual due to associated persistent intracerebral hemorrhage, resulting in significant occurrences of seizures and neurological damage. Recent innovative treatments involve a combination of embolization (Embo) procedures followed by stereotactic radiosurgery (SRS), designed to optimize less-invasive practice for the obliteration of the AVMs...
May 22, 2017: Curēus
https://www.readbyqxmd.com/read/28635415/known-and-unknown-cerebral-arteriovenous-malformations-in-pregnancies-haemorrhage-risk-and-influence-on-obstetric-management
#12
Xianli Lv, Wei Li, Hongwei He, Chuhan Jiang, Youxiang Li
Objective The objective of this study was to evaluate the haemorrhage risk of known and unknown cerebral arteriovenous malformations and their obstetric management. Methods A retrospective review was performed and analysed 67 consecutive cases of arteriovenous malformation with pregnancy history. Results Sixty-seven cases of arteriovenous malformation with pregnancy histories were identified. In 14 cases (20.9%) of arteriovenous malformation diagnosed before pregnancy, 11 cases were treated (10 embolisation and one surgery), there was no haemorrhage in 14 pregnancies, 14 healthy babies were delivered by caesarean section in 12 pregnancies (85...
January 1, 2017: Neuroradiology Journal
https://www.readbyqxmd.com/read/28610468/analysis-of-preventability-of-stroke-related-maternal-death-from-the-nationwide-registration-system-of-maternal-deaths-in-japan
#13
Shinji Katsuragi, Hiroaki Tanaka, Junichi Hasegawa, Masamitsu Nakamura, Naohiro Kanayama, Masahiko Nakata, Takeshi Murakoshi, Jun Yoshimatsu, Kazuhiro Osato, Kayo Tanaka, Akihiko Sekizawa, Isamu Ishiwata, Tomoaki Ikeda
OBJECTIVE: The number of stroke-related maternal deaths is increasing in Japan. We investigated methods to reduce maternal death from stroke. METHODS: We analyzed stroke-related maternal deaths in Japan reported to the Committee of the Ministry of Health, Labor, and Welfare from 2010 to 2014 inclusive. RESULTS: A total of 35 cases were identified. The median maternal age was 35 years (range 22-45) and the incidence of stoke in women ≥40 was seven-fold higher than in <34...
June 14, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28605551/abc-2-method-does-not-accurately-predict-cerebral-arteriovenous-malformation-volume
#14
Christopher Roark, Venu Vadlamudi, Neeraj Chaudhary, Joseph J Gemmete, Joshua Seinfeld, B Gregory Thompson, Aditya S Pandey
BACKGROUND: Stereotactic radiosurgery (SRS) is a treatment option for cerebral arteriovenous malformations (AVMs) to prevent intracranial hemorrhage. The decision to proceed with SRS is usually based on calculated nidal volume. Physicians commonly use the ABC/2 formula, based on digital subtraction angiography (DSA), when counseling patients for SRS. OBJECTIVE: To determine whether AVM volume calculated using the ABC/2 method on DSA is accurate when compared to the exact volume calculated from thin-cut axial sections used for SRS planning...
June 10, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28604186/mechanical-removal-of-a-refluxed-onyx-piece-from-the-middle-cerebral-artery-using-the-solitaire-stent-technical-report
#15
Dilara Gungor, Şükrü Oğuz, Hasan Dinc
Onyx reflux into the parent artery is a rare and sometimes significant complication in the treatment of cerebral arteriovenous malformations (AVMs). We report a patient who presented with Onyx reflux into the M1 segment of the middle cerebral artery (MCA) during embolization of a right temporal AVM. The refluxed Onyx cast was successfully removed by a mechanical thrombectomy device using a self-expandable and fully retrievable Solitaire AB stent.
June 2017: Interventional Neuroradiology
https://www.readbyqxmd.com/read/28588815/familial-cerebral-abscesses-caused-by-hereditary-hemorrhagic-telangiectasia
#16
Pernille Mathiesen Tørring, Mathilde Faurholdt Lauridsen, Christine I Dali, Poul Erik Andersen, Lillian Bomme Ousager, Klaus Brusgaard, Anette Kjeldsen
In case of a cerebral abscess without known cause, Pulmonary arteriovenous malformations (PAVM) screening should be performed. If PAVM(s) is identified, Hereditary hemorrhagic telangiectasia (HHT) is very likely and should always be considered. This case shows the benefit of familial screening for HHT and PAVM.
June 2017: Clinical Case Reports
https://www.readbyqxmd.com/read/28580336/simulation-study-of-hemodynamic-in-bifurcations-for-cerebral-arteriovenous-malformation-using-electrical-analogy
#17
Y Kiran Kumar, S B Mehta, M Ramachandra
BACKGROUND AND OBJECTIVE: Cerebral Arteriovenous Malformation (CAVM) hemodynamic is disease condition, results changes in the flow and pressure level in cerebral blood vessels. Measuring flow and pressure without catheter intervention along the vessel is big challenge due to vessel bifurcations/complex bifurcations in Arteriovenous Malformation patients. The vessel geometry in CAVM patients are complex, composed of varying diameters, lengths, and bifurcations of various angles. The variations in the vessel diameter and bifurcation angle complicate the measurement and analysis of blood flow features invasively or non-invasively...
June 2017: Journal of Biomedical Physics & Engineering
https://www.readbyqxmd.com/read/28578477/prevalence-of-hereditary-hemorrhagic-telangiectasia-in-patients-operated-for-cerebral-abscess-a-retrospective-cohort-analysis
#18
L Larsen, C R Marker, A D Kjeldsen, F R Poulsen
It is well described that patients with pulmonary arteriovenous malformations (PAVMs) and Hereditary Hemorrhagic Telangiectasia (HHT) have an increased risk of cerebral abscess (CA). However, as both CA and HHT are rare, the proportion of patients with CA who are diagnosed with HHT has not been previously described. A retrospective study was carried out of all patients treated surgically for CA between January 1995 and September 2014 at the Department of Neurosurgery, Odense University Hospital. The cases were then cross-referenced with the Danish HHT database...
June 3, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/28565984/novel-use-of-flow-diversion-for-the-treatment-of-aneurysms-associated-with-arteriovenous-malformations
#19
Craig Kilburg, Philipp Taussky, M Yashar S Kalani, Min S Park
The use of flow-diverting stents for intracranial aneurysms has become more prevalent, and flow diverters are now routinely used beyond their initial scope of approval at the proximal internal carotid artery. Although flow diversion for the treatment of cerebral aneurysms is becoming more commonplace, there have been no reports of its use to treat flow-related cerebral aneurysms associated with arteriovenous malformations (AVMs). The authors report the cases of 2 patients whose AVM-associated aneurysms were managed with flow diversion...
June 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/28559076/prenatal-diagnosis-and-multimodal-neonatal-treatment-of-a-rare-pial-arteriovenous-fistula-case-report-and-review-of-the-literature
#20
Alessandro Pedicelli, Marta Iacobucci, Paolo Frassanito, Emilio Lozupone, Gabriele Masselli, Concezio Di Rocco, Cesare Colosimo
BACKGROUND: Intracranial pial arteriovenous fistulas (PAVFs) are direct communications between the arterial and venous system of the brain, with the characteristic absence of a plexiform nidus, as seen in the classic cerebral arteriovenous malformations. These vascular malformations, usually occurring in the pediatric population, very rarely are diagnosed in utero, because of a lack of understanding of the condition and because they may be hard to visualize. CASE DESCRIPTION: We report a rare case of a mass-effect PAVF diagnosed with fetal magnetic resonance imaging, involving the right cerebral hemisphere, fed by a pericallosal artery and associated with a giant venous dilatation...
May 27, 2017: World Neurosurgery
keyword
keyword
40878
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"