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cerebral revascularization

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https://www.readbyqxmd.com/read/28717775/impact-of-early-coronary-angiography-on-the-survival-to-discharge-after-out-of-hospital-cardiac-arrest
#1
Jikyoung Shin, Eunsil Ko, Won Chul Cha, Tae Rim Lee, Hee Yoon, Sung Yeon Hwang, Tae Gun Shin, Min Seob Sim, Ik Joon Jo, Keun Jeong Song, Joong Eui Rhee, Yeon Kwon Jeong, Jin-Ho Choi
OBJECTIVE: Acute myocardial infarction is a major cause of out-of-hospital cardiac arrest (OHCA). Coronary angiography (CAG) enables diagnostic confirmation of coronary artery disease and subsequent revascularization, which might improve the prognosis of OHCA survivors. Non-randomized data has shown a favorable impact of CAG on prognosis for this population. However, the optimal timing of CAG has been debated. METHODS: The clinical outcomes of 607 OHCA patients registered in CAPTURES (Cardiac Arrest Pursuit Trial with Unique Registration and Epidemiologic Surveillance), a nationwide multicenter registry performed in 27 hospitals, were analyzed...
June 2017: Clinical and Experimental Emergency Medicine
https://www.readbyqxmd.com/read/28709707/endovascular-treatment-of-acute-ischemic-stroke-with-eric-device
#2
Laurent Pierot, Jean-Yves Gauvrit, Vincent Costalat, Michel Piotin, Charbel Mounayer, Denis Herbreteau, Sophie Gallas, René Anxionnat, Hubert Desal
BACKGROUND AND PURPOSE: After 6 positive randomized trials, mechanical thrombectomy with stent-retriever is now recommended as a first-line treatment for acute ischemic stroke (AIS). The ERIC device is a device with several interlinked cage-like spheres fixed on a pusher wire. Neurothrombectomy France (NTF) is a registry conducted in France to analyze the results of mechanical thrombectomy. In order to analyze its performances, the subgroup of patients treated with the ERIC device was analyzed...
July 11, 2017: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/28708772/successful-laparoscopic-harvesting-of-omental-pedicle-flap-for-salvage-cerebral-revascularization-in-2-adults-with-moyamoya-disease-technique-and-lessons-learned
#3
Max Schumm, Kathleen Simon, Rapheal Sacho, Jon C Gould
Moyamoya is an idiopathic and progressive disease that leads to occlusion of intracranial arteries. When other methods of revascularization fail, omentum can be used as an indirect bypass to improve cerebral perfusion. Laparoscopic mobilization of a pedicled omental flap with subcutaneous tunneling to the brain has been described in small case series in children. We report our techniques and outcomes in 2 adults with Moyamoya to undergo such a procedure. An omental flap based on the right gastroepiploic artery was created and intraoperative fluorescence imaging using indocyanine green was used to assess the viability of the flap and to guide lengthening of the pedicle...
July 13, 2017: Surgical Laparoscopy, Endoscopy & Percutaneous Techniques
https://www.readbyqxmd.com/read/28704454/indocyanine-green-kinetics-with-near-infrared-spectroscopy-predicts-cerebral-hyperperfusion-syndrome-after-carotid-artery-stenting
#4
Ichiro Nakagawa, Hun Soo Park, Shohei Yokoyama, Shuichi Yamada, Yasushi Motoyama, Young Su Park, Takeshi Wada, Kimihiko Kichikawa, Hiroyuki Nakase
BACKGROUND: Cerebral hyperperfusion syndrome (HPS) is a potentially life-threatening complication following carotid artery stenting (CAS) and carotid endoarterectomy (CEA). Early prediction and treatment of patients at risk for HPS are required in patients undergoing CAS because HPS occurs significantly earlier after CAS than CEA. Near-infrared spectroscopy (NIRS) is often used for monitoring, and indocyanine green (ICG) kinetics by NIRS (ICG-NIRS) can detect reductions in cerebral perfusion in patients with acute stroke...
2017: PloS One
https://www.readbyqxmd.com/read/28701298/carotid-stenting-for-unilateral-stenosis-can-increase-contralateral-hemispheric-cerebral-blood-flow
#5
Akiyo Sadato, Shingo Maeda, Motoharu Hayakawa, Kazuhide Adachi, Hiroshi Toyama, Ichiro Nakahara, Yuichi Hirose
BACKGROUND: The revascularization of carotid stenosis can increase ipsilateral cerebral blood flow (CBF). Occasionally, elevated CBF is also evident on the contralateral side, but this phenomenon is poorly understood. OBJECTIVE: To analyze retrospectively the relationship between a contralateral CBF increase and several clinical and radiologic features. MATERIALS AND METHODS: We retrospectively analyzed 40 patients with unilateral cervical carotid stenosis treated by carotid artery stenting (CAS)...
July 12, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28690222/-curative-effect-of-surgery-on-moyamoya-disease-an-analysis-of-47-patients
#6
Fenghua Chen, Yuanbing Chen, Ming Zeng, Zeming Tan, Jun Huang, Junyu Wang, Yinhua Liang
To evaluate the effect of surgery on 47 patients with moyamoya disease by retrospective analysis.
 Methods: A total of 47 patients with moyamoya disease were enrolled from August, 2010 to According to the improved treatment in August, 2013, all cases were divided into two groups: a pre-improved group and a post-improved group. According to different surgical methods, they were divided into two subgroups: an indirect revascularization subgroup and a combined revascularization subgroup.
 Results: The cerebral ischemia in 77...
June 28, 2017: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/28686113/effects-of-different-surgical-modalities-on-the-clinical-outcome-of-patients-with-moyamoya-disease-a-prospective-cohort-study
#7
Xiaofeng Deng, Faliang Gao, Dong Zhang, Yan Zhang, Rong Wang, Shuo Wang, Yong Cao, Yuanli Zhao, Yuesong Pan, Xun Ye, Xingju Liu, Qian Zhang, Jia Wang, Ziwen Yang, Meng Zhao, Jizong Zhao
OBJECTIVE Bypass surgery is the most common treatment for moyamoya disease (MMD), but there is controversy over which surgical modality is best. The objective of this study was to evaluate the clinical outcome of patients with MMD after undergoing different surgical modalities. METHODS A series of 696 consecutive MMD patients treated between June 2009 and May 2015 were screened in this prospective cohort study. Patients who did not undergo revascularization surgeries and those who underwent different surgical modalities in bilateral hemispheres were excluded...
July 7, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28678794/ammonium-tetrathiomolybdate-following-ischemia-reperfusion-injury-chemistry-pharmacology-and-impact-of-a-new-class-of-sulfide-donor-in-preclinical-injury-models
#8
Alex Dyson, Felipe Dal-Pizzol, Giovanni Sabbatini, Anna B Lach, Federica Galfo, Juliano Dos Santos Cardoso, Bruna Pescador Mendonça, Iain Hargreaves, Bernardo Bollen Pinto, Daniel I Bromage, John F Martin, Kevin P Moore, Martin Feelisch, Mervyn Singer
BACKGROUND: Early revascularization of ischemic organs is key to improving outcomes, yet consequent reperfusion injury may be harmful. Reperfusion injury is largely attributed to excess mitochondrial production of reactive oxygen species (ROS). Sulfide inhibits mitochondria and reduces ROS production. Ammonium tetrathiomolybdate (ATTM), a copper chelator, releases sulfide in a controlled and novel manner, and may offer potential therapeutic utility. METHODS AND FINDINGS: In vitro, ATTM releases sulfide in a time-, pH-, temperature-, and thiol-dependent manner...
July 2017: PLoS Medicine
https://www.readbyqxmd.com/read/28676978/intracranial-artery-to-artery-spontaneous-revascularization-in-a-child
#9
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/28666915/dr-norman-chater-and-chater-s-point-a-historical-vignette
#10
REVIEW
Lauren E Rotman, Mark R Harrigan
Dr. Norman Chater, a University of California, San Francisco-trained microvascular neurosurgeon, dedicated his career to the development of surgical bypass techniques. His work contributed to advancements in microvascular anatomy and the development of cerebral revascularization techniques. He identified Chater's point, an extracranial landmark that marks the posterior extent of the Sylvian fissure, which upon craniectomy reliably exposes vessels of the angular gyrus, vasculature found to be most appropriate for bypass procedures due to their accessibility and vascular diameter...
June 27, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28666803/intra-arterial-treatment-for-patients-with-severe-acute-vertebrobasilar-occlusion-a-single-center-retrospective-study
#11
Jie Cao, Jinggang Xuan, Ronghua Chen, Xucheng Zhu, Huaming Shao, Xiaofeng Chao, Feng Zhi, Naiyuan Shao, Ya Peng
BACKGROUND: Recently, favorable outcomes from several randomized controlled trials of rapid endovascular treatment for acute ischemic stroke has emerged. OBJECTIVE: The aim of this retrospective study is to present our clinical experience in severe acute vertebrobasilar occlusion (AVBO) using intra-arterial treatment (IAT). METHODS: Twenty patients with ischemic stroke in the vertebrobasilar circulation treated by IAT between March 2011 and December 2014 were included...
June 27, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28665369/-changes-in-cerebral-perfusion-in-patients-undergoing-revascularization-of-carotid-artery-stenosis
#12
А V Mushba, А А Tsvetkova, Е Т Kankia-Denisenko, O I Vinogradov, M N Vachromeeva
Ischemic stroke is caused by atherosclerotic lesions in extra- and intracranial arteries in about 25% of cases. Revascularization surgery has been long and widely used for secondary prevention of ischemic stroke in patients with atherosclerotic lesions of the carotid arteries. However, currently the changes in cerebral perfusion in patients with atherosclerotic lesions of brachiocephalic arteries, who underwent surgical revascularization, are still not fully understood. This article highlights the issues of changes of cerebral hemodynamics in patients undergoing surgery on the carotid arteries...
2017: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
https://www.readbyqxmd.com/read/28664022/intracerebral-hemorrhage-caused-by-cerebral-hyperperfusion-after-superficial-temporal-artery-to-middle-cerebral-artery-bypass-for-atherosclerotic-occlusive-cerebrovascular-disease
#13
Fumihiro Matano, Yasuo Murai, Takayuki Mizunari, Koji Adachi, Shiro Kobayashi, Akio Morita
Few papers have reported detailed accounts of intracerebral hemorrhage caused by cerebral hyperperfusion after superficial temporal artery to middle cerebral artery bypass (STA-MCA) bypass for atherosclerotic occlusive cerebrovascular disease. We report a case of vasogenic edema and subsequent intracerebral hemorrhage caused by the cerebral hyperperfusion syndrome (CHS) after STA-MCA bypass for atherosclerotic occlusive cerebrovascular disease disease without intense postoperative blood pressure control. A 63-year-old man with repeating left hemiparesis underwent magnetic resonance angiography (MRA), which revealed right internal carotid artery (ICA) occlusion...
January 2017: NMC Case Rep J
https://www.readbyqxmd.com/read/28647036/supra-aortic-interventions-for-endovascular-exclusion-of-the-entire-aortic-arch
#14
REVIEW
Terézia B Andrási, Marius Grossmann, Dieter Zenker, Bernhard C Danner, Friedrich A Schöndube
OBJECTIVE: Our aim was to analyze the outcomes of endovascular exclusion of the entire aortic arch (proximal landing in zone 0, distal landing in zone III or beyond, after Ishimaru) in which complete surgical debranching of the supra-aortic vessels (I), endovascular supra-aortic revascularization (chimney, fenestrated, or branched grafts) with partial surgical debranching (II), or total endovascular supra-aortic revascularization (III) was additionally performed. METHODS: Publications describing endovascular repair of the aortic arch (2000-2016) were systematically searched and reviewed...
July 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28646330/-imaging-of-vessels-supplying-the-brain
#15
REVIEW
S M Schellong, N Abolmaali, B Voigts, C Stelzner
Nowadays, several technically validated modalities are available for imaging both the extracranial and intracranial segments of arteries supplying blood to the brain. In the acute stroke setting, computed tomography (CT) angiography is of utmost importance because it provides the key diagnostic criteria indicative for the use of catheter-based recanalization techniques. Ultrasound imaging of extracranial arteries is most suitable for detecting an underlying stenosis of the internal carotid artery (ICA) in patients with stroke, transient ischemic attacks (TIA), retinal vessel occlusion and amaurosis fugax...
June 23, 2017: Der Internist
https://www.readbyqxmd.com/read/28645592/enlarged-encephalo-duro-myo-synangiosis-treatment-for-moyamoya-disease-in-young-children
#16
Wenjun Shen, Bin Xu, Hao Li, Xiaofeng Gao, Yujun Liao, Wei Shi, Rui Zhao, Yi Zhang
OBJECTIVE: To retrospectively evaluate the mid-term therapeutic effect of enlarged encephalo-duro-myo-synangiosis (EDMS) for moyamoya disease (MMD) in young children. METHODS: Seventy-seven children diagnosed with MMD by digital subtraction angiography (DSA) or magnetic resonance angiography (MRA) were treated between January 2011 and December 2014 in our center. Their clinical features, imaging and operative reports were analyzed. RESULTS: Four patients presented with intracerebral hemorrhage while 73 presented with ischemic symptoms...
June 20, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28642176/microsurgical-bypass-training-rat-model-part-2-anastomosis-configurations
#17
Ali Tayebi Meybodi, Michael T Lawton, Sonia Yousef, Pooneh Mokhtari, Sirin Gandhi, Arnau Benet
BACKGROUND: Mastery of microsurgical anastomosis is key to achieving good outcomes in cerebrovascular bypass procedures. Animal models (especially rodents) provide an optimal pre-clinical bypass training platform. However, the existing models for practicing different anastomosis configurations have several limitations. OBJECTIVE: We sought to optimize the use of the rat's abdominal aorta and common iliac arteries (CIA) for practicing the 3 main anastomosis configurations commonly used in cerebrovascular surgery...
June 19, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28620564/moyamoya-syndrome-in-a-child-with-neurofibromatosis-type-1-magnetic-resonance-imaging-as-a-tool-for-clinical-decision-making
#18
Jonathan Mayl, Hanisha Patel, Tushar Chandra
Moyamoya syndrome is a rare cerebrovasculopathy of unknown etiology which is associated with multiple risk factors. Moyamoya was first discovered in Japan and is reported to have an increased prevalence in the Japanese population. The term "Moyamoya" translates into "puff of smoke" and is named after the finding of the collateral cerebral vasculature that develops secondary to occlusion of an internal carotid artery at the entrance into the circle of Willis. This collateral vasculature characterizes the disease...
May 9, 2017: Curēus
https://www.readbyqxmd.com/read/28615907/successful-revascularization-of-acute-middle-cerebral-artery-occlusion-by-intravenous-thrombolysis-while-on-apixaban
#19
Vivek K Nambiar, T S Dhanya, Amrutha V Ajai
No abstract text is available yet for this article.
April 2017: Annals of Indian Academy of Neurology
https://www.readbyqxmd.com/read/28611829/stent-retriever-mediated-manual-aspiration-thrombectomy-for-acute-ischemic-stroke
#20
Ashutosh P Jadhav, Amin Aghaebrahim, Anat Horev, Dan-Victor Giurgiutiu, Andrew F Ducruet, Brian Jankowitz, Tudor G Jovin
BACKGROUND AND PURPOSE: Stent retriever thrombectomy and manual aspiration thrombectomy (MAT) have each been shown to lead to high rates of recanalization as single-modality endovascular stroke therapy. We sought to describe the safety and efficacy of a multimodal approach combining these two techniques termed 'stent retriever-mediated manual aspiration thrombectomy' (SMAT) and compared them to MAT alone. METHODS: Retrospective review of a prospectively acquired acute endovascular stroke database...
March 2017: Interventional Neurology
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