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cerebral revascularization

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https://www.readbyqxmd.com/read/28927214/direct-anastomosis-using-occipital-artery-for-additional-revascularization-in-moyamoya-disease-after-combined-superficial-temporal-artery-middle-cerebral-artery-and-indirect-bypass
#1
Ken Kazumata, Hiroyasu Kamiyama, Hisayasu Saito, Katsuhiko Maruichi, Masaki Ito, Haruto Uchino, Naoki Nakayama, Satoshi Kuroda, Kiyohiro Houkin
BACKGROUND: The posterior cerebral artery (PCA) is involved in approximately 30% of moyamoya disease (MMD) cases. However, there have been insufficient reports describing revascularization techniques in the posterior portion of the brain, particularly of direct anastomosis. OBJECTIVE: To perform a technical assessment in patients with MMD who underwent either occipital artery (OA)-PCA bypass or OA-middle cerebral artery (MCA) bypass. METHODS: A total of 428 revascularization procedures in 368 patients were retrospectively assessed by reviewing clinical charts and radiological data...
April 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28916863/intracerebral-hemorrhage-as-a-manifestation-of-cerebral-hyperperfusion-syndrome-after-carotid-revascularization-systematic-review-and-meta-analysis
#2
REVIEW
Pedro Abreu, Jerina Nogueira, Filipe Brogueira Rodrigues, Ana Nascimento, Mariana Carvalho, Ana Marreiros, Hipólito Nzwalo
BACKGROUND: Intracerebral hemorrhage (ICH) in the context of cerebral hyperperfusion syndrome (CHS) is an uncommon but potentially lethal complication after carotid revascularization for carotid occlusive disease. Information about its incidence, risk factors and fatality is scarce. Therefore, we aimed to perform a systematic review and meta-analysis focusing on the incidence, risk factors and outcomes of ICH in the context of CHS after carotid revascularization. METHODS: We searched the PubMed and EBSCO hosts for all studies published in English about CHS in the context of carotid revascularization...
September 15, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28904450/acute-ischemic-stroke-treatment-using-mechanical-thrombectomy-a-study-of-137-patients
#3
Rakeshsingh K Singh, Vishal Annaji Chafale, Rakesh Shyam Lalla, Keyurkumar Chandrakantbhai Panchal, Anil Pandurang Karapurkar, Satish Vasant Khadilkar, Pawan K Ojha, Yogesh Godge, Rakesh K Singh, Rajesh Benny
BACKGROUND: Mechanical thrombectomy (MT) is the most effective treatment in large vessel occlusion (LVO). We have analyzed our initial experience of MT of 137 patients in anterior circulation (AC) and posterior circulation (PC) LVO using Solitaire stent retriever device. METHODS: Retrospective cohort analysis of 112 AC and 25 PC acute ischemic strokes was done considering various baseline characteristics, risk factors, National Institute of Health Stroke Scale (NIHSS) change, revascularization rate, complications, and functional outcome at 3 months using modified Rankin score...
July 2017: Annals of Indian Academy of Neurology
https://www.readbyqxmd.com/read/28902823/-comparing-the-risks-for-the-development-of-perioperative-complications-in-carotid-endarterectomy-and-carotid-angioplasty
#4
R A Vinogradov, K A Lashevich, V S Pykhteev
The article is a literature review presenting a comparative analysis of 30-day risks of mortality and complications after carotid endarterectomy and carotid angioplasty with stenting. The risks studied were as follows: myocardial infarction, stroke, transitory ischaemic attacks, bradycardia, hypotension, postoperative haematomas, and damages to the craniocerebral nerves. The authors analysed a series of recently published foreign studies and meta-analyses dedicated to the problem concerned. The obtained findings revealed that carotid endarterectomy turned out to be associated with a higher perioperative risk for the development of myocardial infarction, postoperative haematomas and damages to the craniocerebral nerves, whereas carotid angioplasty with stenting appeared to be associated with an increased risk for the development of stroke, bradycardia and hypotension within the first 30 postoperative days...
2017: Angiologii︠a︡ i Sosudistai︠a︡ Khirurgii︠a︡, Angiology and Vascular Surgery
https://www.readbyqxmd.com/read/28890061/cerebral-protection-with-a-temporary-ascending-aorta-external-carotid-artery-bypass-during-common-carotid-artery-revascularization
#5
Murat Ugurlucan, Yilmaz Onal, Didem Melis Oztas, Cagla Canbay, Ibrahim Demir, Omer Ali Sayin, Ozgur Kilickesmez, Mehmet Semih Cakir, Kubilay Aydin, Ufuk Alpagut
Atherosclerosis is a systemic disease and multi-arterial involvement is common. Involvement of all of the supra-aortic arteries may occur in the same patient making cerebral revascularization challenging. In this report, we present complete supra-aortic revascularization, i.e revascularization of the bilateral common carotid and subclavian arteries in a 51-year-old male patient with occluded brachiocephalic trunk, left subclavian artery and proximally stenotic left common carotid artery. A temporary ascending aorta to left external carotid artery bypass provided meticulous cerebral protection with pulsatile cerebral flow in the presence of a proximal arterial clamp; hence, a neurologicly uneventful procedure during bilateral common carotid artery revascularization...
September 7, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28887285/the-occipital-artery-as-an-alternative-donor-for-low-flow-bypass-to-anterior-circulation-after-ica-occlusion-failure-prior-to-exenteration-for-an-atypical-cavernous-sinus-meningioma-a-technical-case-report
#6
Shunya Hanakita, Stéphanie Lenck, Moujahed Labidi, Kentaro Watanabe, Damien Bresson, Sébastien Froelich
BACKGROUND: and Importance: In skull-base tumors involving the cavernous sinus (CS), indications for aggressive resection are sparse and must be carefully examined because of their invasiveness. With careful evaluation, techniques including internal carotid artery (ICA) sacrifice with or without extracranial-intracranial (EC-IC) bypass may still be an option in some cases. In addition, previous surgery with the sacrifice of potential donor vessels requires adjusting the revascularization strategy...
September 5, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28874779/relation-between-characteristics-of-carotid-atherosclerotic-plaques-and-brain-white-matter-hyperintensities-in-asymptomatic-patients
#7
Enrico Ammirati, Francesco Moroni, Marco Magnoni, Maria A Rocca, Roberta Messina, Nicoletta Anzalone, Costantino De Filippis, Isabella Scotti, Francesca Besana, Pietro Spagnolo, Ornella E Rimoldi, Roberto Chiesa, Andrea Falini, Massimo Filippi, Paolo G Camici
White matter hyperintensities (WMH) can be incidentally found in patients with carotid atherosclerosis on brain magnetic resonance imaging (MRI). We investigated the relationship between WMH and characteristics of carotid plaques in asymptomatic patients without indication for carotid revascularization. We prospectively screened 235 consecutive patients with carotid stenosis <70%. After excluding patients with confounding causes of cerebral damage, 67 asymptomatic patients underwent carotid computed tomography angiography (CTA), contrast-enhanced ultrasound and brain MRI...
September 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28870823/occipital-artery-to-middle-cerebral-artery-bypass-operative-nuances
#8
Toshikazu Kimura, Akio Morita
BACKGROUND: Superficial temporal artery-middle cerebral artery (STA-MCA) anastomosis is a common procedure for vascular neurosurgeons, and it is used in a variety of diseases. However, there are cases in which the STA is absent or is too hypoplastic to be used as a donor for revascularization. Occipital artery-MCA (OA-MCA) bypass may be a treatment option in these cases. METHODS: We encountered four cases of symptomatic cerebral ischemia in which the STA was absent or unavailable...
September 1, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28862519/novel-insights-into-symptomatology-of-moyamoya-disease-in-pediatric-patients-survey-of-symptoms-suggestive-of-orthostatic-intolerance
#9
Haruto Uchino, Ken Kazumata, Masaki Ito, Naoki Nakayama, Kiyohiro Houkin
OBJECTIVE A specific population of young patients with moyamoya disease (MMD) persistently experience physical symptoms not attributable to focal ischemia. These symptoms, highly suggestive of orthostatic intolerance (also termed "orthostatic dysregulation"), were investigated and reported as potential determinants of quality of life in young MMD patients. METHODS Forty-six patients (6-30 years of age) were selected from a group of 122 patients who were diagnosed with MMD before 18 years of age. The authors administered a structured questionnaire consisting of 11 items based on screening checklists published in the Japanese clinical guidelines for juvenile orthostatic dysregulation in young patients...
September 1, 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/28855347/prolonged-cerebral-circulation-time-is-more-associated-with-symptomatic-carotid-stenosis-than-stenosis-degree-or-collateral-circulation
#10
Yong-Sin Hu, Wan-Yuo Guo, I-Hui Lee, Feng-Chi Chang, Chung-Jung Lin, Chun-Jen Lin, Chao-Bao Luo, Chih-Chun Wu, Han-Jui Lee
BACKGROUND AND PURPOSE: Current practice of revascularization for carotid stenosis (CS) primarily relies on symptoms and degree of stenosis. Other parameters, such as collateral circulation and cerebral circulation time (CCT), might influence the stroke risk in CS. This study was conducted to (1) investigate whether CCT is more associated with symptomatic CS than degree of stenosis and (2) elucidate the associations among the degree of stenosis, collateral status, and CCT. METHODS: From 2010 to 2016, 82 patients with unilateral CS were enrolled for DSA and divided into symptomatic and asymptomatic groups based on clinical presentation...
August 30, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28844915/moyamoya-disease-in-a-8-year-old-boy-direct-bypass-surgery-in-a-province-of-peru
#11
Joham Choque-Velasquez, Roberto Colasanti, Danil A Kozirev, Juha Hernesniemi, Akitsugu Kawashima
BACKGROUND: Pediatric moyamoya cases may be very arduous, even more in a developing country where the access to specialized centers may be prevented by different factors. CASE DESCRIPTION: Herein, we report a challenging case, which was managed in the new Neurosurgical Center of Trujillo, regarding the direct anastomosis between the left superficial temporal artery and a cortical branch of the left middle cerebral artery in a 8-year-old Peruvian boy with moyamoya disease...
August 24, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28841118/treatment-of-aneurysms-in-patients-with-moyamoya-disease-a-10-year-single-center-experience
#12
Wei Ni, Hanqiang Jiang, Bin Xu, Yu Lei, Heng Yang, Jiabin Su, Yuxiang Gu, Ying Mao
OBJECTIVE Moyamoya disease (MMD) is occasionally accompanied by intracranial aneurysms. The purpose of this study was to delineate the efficacy of the authors' current surgical strategy in the management of MMD-associated aneurysms of different types. METHODS Between January 2007 and March 2016, a consecutive cohort of 34 patients with 36 MMD-associated aneurysms was enrolled in this prospective single-center cohort study. The lesions were classified as peripheral (17 aneurysms) or main trunk aneurysms (13 in the anterior circulation and 6 in the posterior circulation)...
August 25, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28838358/coronary-artery-disease-in-patients-with%C3%A2-out-of-hospital-refractory-ventricular-fibrillation-cardiac-arrest
#13
MULTICENTER STUDY
Demetris Yannopoulos, Jason A Bartos, Ganesh Raveendran, Marc Conterato, Ralph J Frascone, Alexander Trembley, Ranjit John, John Connett, David G Benditt, Keith G Lurie, Robert F Wilson, Tom P Aufderheide
BACKGROUND: The prevalence of coronary artery disease (CAD) among patients with refractory out-of-hospital (OH) ventricular fibrillation (VF)/ventricular tachycardia (VT) cardiac arrest is unknown. OBJECTIVES: The goal of this study was to describe the prevalence and complexity of CAD and report survival to hospital discharge in patients experiencing refractory VF/VT cardiac arrest treated with a novel protocol of early transport to a cardiac catheterization laboratory (CCL) for extracorporeal life support (ECLS) and revascularization...
August 29, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28838085/long-term-survival-and-fate-of-the-leg-in-de-novo-intermittent-claudication
#14
Hisao Kumakura, Hiroyoshi Kanai, Yoshiaki Hojo, Toshiya Iwasaki, Shuichi Ichikawa
Aims: The long-term life expectancy and fate of the leg, including progression rate to critical limb ischaemia (CLI), were analysed in de novo patients with intermittent claudication (IC). Methods and results: A prospective cohort study was performed in 1107 patients with de novo IC. The endpoints were overall survival (OS), freedom from major adverse cardiovascular events (MACE), freedom from major adverse cardiovascular and limb events (MACLE), and fate of the leg...
July 1, 2017: European Heart Journal. Quality of Care & Clinical Outcomes
https://www.readbyqxmd.com/read/28830971/systematic-evaluation-of-patients-treated-with-neurothrombectomy-devices-for-acute-ischemic-stroke-primary-results-of-the-stratis-registry
#15
Nils H Mueller-Kronast, Osama O Zaidat, Michael T Froehler, Reza Jahan, Mohammad Ali Aziz-Sultan, Richard P Klucznik, Jeffrey L Saver, Frank R Hellinger, Dileep R Yavagal, Tom L Yao, David S Liebeskind, Ashutosh P Jadhav, Rishi Gupta, Ameer E Hassan, Coleman O Martin, Hormozd Bozorgchami, Ritesh Kaushal, Raul G Nogueira, Ravi H Gandhi, Eric C Peterson, Shervin R Dashti, Curtis A Given, Brijesh P Mehta, Vivek Deshmukh, Sidney Starkman, Italo Linfante, Scott H McPherson, Peter Kvamme, Thomas J Grobelny, Muhammad S Hussain, Ike Thacker, Nirav Vora, Peng Roc Chen, Stephen J Monteith, Robert D Ecker, Clemens M Schirmer, Eric Sauvageau, Alex Abou-Chebl, Colin P Derdeyn, Lucian Maidan, Aamir Badruddin, Adnan H Siddiqui, Travis M Dumont, Abdulnasser Alhajeri, M Asif Taqi, Khaled Asi, Jeffrey Carpenter, Alan Boulos, Gaurav Jindal, Ajit S Puri, Rohan Chitale, Eric M Deshaies, David H Robinson, David F Kallmes, Blaise W Baxter, Mouhammad A Jumaa, Peter Sunenshine, Aniel Majjhoo, Joey D English, Shuichi Suzuki, Richard D Fessler, Josser E Delgado Almandoz, Jerry C Martin, Diogo C Haussen
BACKGROUND AND PURPOSE: Mechanical thrombectomy with stent retrievers has become standard of care for treatment of acute ischemic stroke patients because of large vessel occlusion. The STRATIS registry (Systematic Evaluation of Patients Treated With Neurothrombectomy Devices for Acute Ischemic Stroke) aimed to assess whether similar process timelines, technical, and functional outcomes could be achieved in a large real world cohort as in the randomized trials. METHODS: STRATIS was designed to prospectively enroll patients treated in the United States with a Solitaire Revascularization Device and Mindframe Capture Low Profile Revascularization Device within 8 hours from symptom onset...
August 22, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28826714/internal-maxillary-artery-to-upper-posterior-circulation-bypass-using-a-superficial-temporal-artery-graft-surgical-anatomy-and-feasibility-assessment
#16
Ali Tayebi Meybodi, Michael T Lawton, Roberto Rodriguez Rubio, Sonia Yousef, Xiaoming Guo, Xuequan Feng, Arnau Benet
BACKGROUND: Revascularization of the upper posterior circulation (UPC), including the superior cerebellar [SCA] and posterior cerebral arteries [PCA], may be necessary as part of the surgical treatment of complex UPC aneurysms or vertebrobasilar insufficiency. The existing bypass options have relative advantages and disadvantages. However, the use of a superficial temporal artery graft (STAg) in a bypass from the internal maxillary artery (IMA) to the UPC has not been previously assessed...
August 4, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28821628/frontline-adapt-therapy-to-treat-patients-with-symptomatic-m2-and-m3-occlusions-in-acute-ischemic-stroke-initial-experience-with-the-penumbra-ace-and-3max-reperfusion-system
#17
Jens Altenbernd, Oliver Kuhnt, Svenja Hennigs, Ruediger Hilker, Christian Loehr
BACKGROUND: After a series of positive studies for mechanical thrombectomy in large vessel occlusion acute ischemic stroke, the question remains, can symptomatic patients with distal vessel occlusion benefit from mechanical thrombectomy? PURPOSE: To assess the safety and efficacy of the 3MAX reperfusion system as frontline therapy for M2 and M3 occlusions. METHODS: This study retrospectively collected data on 58 patients treated for M2 and M3 occlusions between January and September 2016...
August 18, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28807382/association-between-statin-therapy-and-amputation-free-survival-in-patients-with-critical-limb-ischemia-in-the-critisch-registry
#18
Konstantinos Stavroulakis, Matthias Borowski, Giovanni Torsello, Theodosios Bisdas
OBJECTIVE: Secondary prevention in patients with critical limb ischemia (CLI) is crucial for the reduction of cardiovascular morbidity and mortality. Nonetheless, current recommendations are extrapolated from other high-risk populations because of the lack of CLI-dedicated trials. The aim of this explorative study was to evaluate the association of statin therapy with the outcomes of CLI patients. METHODS: The First-Line Treatments in Patients With Critical Limb Ischemia (CRITISCH) registry is a prospective multicenter registry analyzing the effectiveness of all available treatment strategies in 1200 CLI patients...
August 11, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28803773/low-dose-versus-high-dose-tranexamic-acid-reduces-the-risk-of-nonischemic-seizures-after-cardiac-surgery-with-cardiopulmonary-bypass
#19
Pierre Couture, Jean-Sébastien Lebon, Éric Laliberté, Georges Desjardins, Marie-Ève Chamberland, Christian Ayoub, Antoine Rochon, Jennifer Cogan, André Denault, Alain Deschamps
OBJECTIVE: The incidence of postoperative nonischemic seizures associated with the use of tranexamic acid (TXA) and the possibility of prevention with a low-dose regimen of TXA were evaluated. DESIGN: Retrospective study. SETTING: Tertiary care university hospital. PARTICIPANTS: A total of 12,195 patients who underwent cardiac surgical procedures under cardiopulmonary bypass (CPB) were evaluated. INTERVENTIONS: The files of every clinical seizure case diagnosed in the surgical intensive care unit between April 2006 and April 2014 were reviewed...
April 15, 2017: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/28783763/mapping-altered-brain-connectivity-and-its-clinical-associations-in-adult-moyamoya-disease-a-resting-state-functional-mri-study
#20
Ken Kazumata, Khin Khin Tha, Haruto Uchino, Masaki Ito, Naoki Nakayama, Takeo Abumiya
Detection of subtle ischemic injuries in moyamoya disease may enable optimization of timing of revascularization surgery, and could potentially improve functional outcomes. Resting-state functional magnetic resonance imaging (rs-fMRI) is widely used to study functional organization of the brain, but it remains unclear whether rs-fMRI could elucidate distinct characteristics in moyamoya disease. Here, we aimed to determine changes in a conventional rs-fMRI measure and analyze any associations with clinical symptoms and cerebral hemodynamics...
2017: PloS One
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