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https://www.readbyqxmd.com/read/29152468/dual-mechanical-thrombectomy-for-recanalization-of-a-resistant-acute-posterior-circulation-stroke
#1
Ahmet Peker, Ayça Akgoz, Ethem Murat Arsava, Mehmet Akif Topçuoglu, Anil Arat
A 71-year-old man with acute basilar artery occlusion was referred for endovascular treatment 6 hours after the onset of stroke with a Glasgow Coma Score of 3 and National Institutes of Health Stroke Scale of 27. A cerebral arteriogram revealed occlusion of the left vertebral artery proximally and thromboembolic occlusion of the basilar tip. Direct aspiration and mechanical thrombectomy with various stent retrievers failed to reconstitute arterial flow in the basilar artery. Thrombolysis in cerebral infarction 2b recanalization was achieved only after placement of double Catch Mini stent retrievers through 2 microcatheters, on both side branches of the basilar bifurcation in a kissing fashion and retrieving them simultaneously...
June 2017: Journal of Cerebrovascular and Endovascular Neurosurgery
https://www.readbyqxmd.com/read/29151320/effects-of-whole-blood-viscosity-and-plasma-nox-on-cardiac-function-and-cerebral-blood-flow-in-children-with-chronic-kidney-disease
#2
Necla Buyan, Meltem Akçaboy, Tayfun Göktaş, Serdar Kula, Bijen Nazlıel, Nilgün Çakar, Nermin Uncu, Bülent Çelik, Deniz Erbaş
Background/aim: The aim of the study was to investigate the effects of whole blood viscosity and plasma nitric oxide on cerebral and cardiovascular risks associated with chronic kidney disease. Materials and methods: The study group consisted of 40 pediatric patients and 21 healthy control subjects. Hematologic and biochemical variables, viscosity and plasma nitric oxide levels, echocardiographic findings, and middle cerebral artery blood flow velocity were examined. Results: Viscosity values of patients were significantly lower than those of the control group...
November 13, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/29149028/changes-of-cerebral-and-or-peripheral-adenosine-a%C3%A2-receptor-and-igf-i-concentrations-under-extended-sleep-duration-in-rats
#3
Mounir Chennaoui, Pierrick J Arnal, Rodolphe Dorey, Fabien Sauvet, Sylvain Ciret, Thierry Gallopin, Damien Leger, Catherine Drogou, Danielle Gomez-Merino
Extended sleep improves sustained attention and reduces sleep pressure in humans. Downregulation of adenosine A₁ receptor (A₁R) and modulation of the neurotrophic factor insulin growth factor-1 (IGF-I) in brain structures controlling attentional capacities could be involved. In the frontal cortex and hippocampus of rats, we measured adenosine A₁R and IGF-I protein concentrations after photoperiod-induced sleep extension. Two groups of twelve rats were adapted over 14 days to a habitual (CON) 12:12 light-dark (LD) schedule and an extended (EXT) 16:8 LD schedule...
November 17, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29146024/effect-of-serum-albumin-concentration-on-neurological-outcome-after-out-of-hospital-cardiac-arrest-from-the-critical-comprehensive-registry-of-intensive-cares-for-ohca-survival-study-in-osaka-japan
#4
Tasuku Matsuyama, Taku Iwami, Tomoki Yamada, Koichi Hayakawa, Kazuhisa Yoshiya, Taro Irisawa, Yoshio Abe, Tetsuro Nishimura, Toshifumi Uejima, Yasuo Ohishi, Takeyuki Kiguchi, Masashi Kishi, Masafumi Kishimoto, Shota Nakao, Yasuyuki Hayashi, Taku Sogabe, Takaya Morooka, Junichi Izawa, Tomonari Shimamoto, Toshihiro Hatakeyama, Tomoko Fujii, Junya Sado, Takeshi Shimazu, Takashi Kawamura, Tetsuhisa Kitamura
The aim of this study was to assess whether serum albumin concentration upon hospital arrival had prognostic indications on out-of-hospital cardiac arrest (OHCA). This prospective, multicenter observational study conducted in Osaka, Japan (the CRITICAL [Comprehensive Registry of Intensive Cares for OHCA Survival] study), enrolled all patients with consecutive OHCA transported to 14 participating institutions. We included adult patients aged ≥18 years with nontraumatic OHCA who achieved return of spontaneous circulation and whose serum albumin concentration was available from July 2012 to December 2014...
October 19, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/29145041/transradial-access-for-cerebrovascular-angiography-evaluation-of-palmar-collateral-circulation-with-hand-angiography-and-its-correlation-with-allen-test
#5
Woo-Keun Kwon, Wonki Yoon, Taek-Hyun Kwon, Jong Hyun Kim, Heung-Sub Jung, Jaegeun Ahn, Hanyong Huh, Choel Ji
OBJECTIVES: Transradial cerebral angiography (TRCA) has been introduced as an alternative technique for the transfemoral access, and its use is becoming more common in the field. In this study, we retrospectively analyzed a group of patients who received TRCA, and investigated peri-procedural measurements indicating actual hand circulation, and studied their correlation with the Allen test. PATIENTS AND METHODS: A retrospective review of 168 patients whom underwent TRCA between 2015 July and 2016 July, were included in this study...
October 31, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/29143463/advances-in-chronic-cerebral-circulation-insufficiency
#6
REVIEW
Da Zhou, Ran Meng, Si-Jie Li, Jing-Yuan Ya, Jia-Yue Ding, Shu-Ling Shang, Yu-Chuan Ding, Xun-Ming Ji
Chronic cerebral circulation insufficiency (CCCI) may not be an independent disease; rather, it is a pervasive state of long-term cerebral blood flow insufficiency caused by a variety of etiologies, and considered to be associated with either occurrence or recurrence of ischemic stroke, vascular cognitive impairment, and development of vascular dementia, resulting in disability and mortality worldwide. This review summarizes the features and recent progress of CCCI, mainly focusing on epidemiology, experimental research, pathophysiology, etiology, clinical manifestations, imaging presentation, diagnosis, and potential therapeutic regimens...
November 15, 2017: CNS Neuroscience & Therapeutics
https://www.readbyqxmd.com/read/29143295/posterior-circulation-involvement-in-pediatric-and-adult-patients-with-moyamoya-disease-a-single-center-experience-in-574-patients
#7
Meng Zhao, Dong Zhang, Shuo Wang, Yan Zhang, Rong Wang, Xiaofeng Deng, Jizong Zhao
The importance of the posterior cerebral artery (PCA) involvement in moyamoya disease has been highlighted in recent years. However, few studies compared the impact of PCA lesions in moyamoya disease between pediatric and adult patients. We conducted this study to summarize the clinical features of moyamoya patients with PCA lesions and describe the difference between pediatric and adult patients. We reviewed the records of 696 consecutive moyamoya vasculopathy patients from 2009 to 2015. The Suzuki and the Miyamoto stages were used to evaluate the steno-occlusive lesions of the anterior and posterior arteries...
November 15, 2017: Acta Neurologica Belgica
https://www.readbyqxmd.com/read/29142622/effectiveness-and-safety-of-mechanical-thrombectomy-with-stent-retrievers-in-basilar-artery-occlusion-comparison-with-anterior-circulation-occlusions
#8
Soo Young Hu, Ho Jun Yi, Dong Hoon Lee, Jae Taek Hong, Jae Hoon Sung, Sang Won Lee
Objective: Acute basilar artery occlusion (BAO) is associated with severe neurological dysfunction and high mortality rates. The benefits of mechanical thrombectomy in BAO have not been explored in recent clinical trials. Therefore, we analyzed outcomes of stent retriever mechanical thrombectomy for BAO, and compared with anterior circulation occlusions (ACO). Methods: In total, 161 consecutive patients (24 BAO, 137 ACO) who underwent mechanical thrombectomy with the stent retriever between January 2013 and August 2016 enrolled in our study...
November 2017: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/29140981/wavelet-brain-angiography-suggests-arteriovenous-pulse-wave-phase-locking
#9
William E Butler
When a stroke volume of arterial blood arrives to the brain, the total blood volume in the bony cranium must remain constant as the proportions of arterial and venous blood vary, and by the end of the cardiac cycle an equivalent volume of venous blood must have been ejected. I hypothesize the brain to support this process by an extraluminally mediated exchange of information between its arterial and venous circulations. To test this I introduce wavelet angiography methods to resolve single moving vascular pulse waves (PWs) in the brain while simultaneously measuring brain pulse motion...
2017: PloS One
https://www.readbyqxmd.com/read/29140523/sequential-coiling-assisted-deployment-of-flow-diverter-for-treatment-of-fusiform-middle-cerebral-artery-aneurysms
#10
Abdulrahman Y Alturki, Philip G R Schmalz, Christopher S Ogilvy, Ajith J Thomas
BACKGROUND AND IMPORTANCE: Fusiform intracranial aneurysms remain challenging lesions to treat. These aneurysms have historically required bypass procedures or clip remodeling constructs for cure. Recently, endovascular specialists have reported experience with flow diversion for complex fusiform aneurysms of the vertebrobasilar system, with mixed results. Vascular anatomy for anterior circulation fusiform aneurysms may make these lesions more amenable to flow diversion and embolization procedures; however, published experience with these techniques is lacking...
November 11, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29135347/relative-cerebral-blood-volume-is-associated-with-collateral-status-and-infarct-growth-in-stroke-patients-in-swift-prime
#11
Juan F Arenillas, Elisa Cortijo, Pablo García-Bermejo, Elad I Levy, Reza Jahan, Mayank Goyal, Jeffrey L Saver, Gregory W Albers
We aimed to evaluate how predefined candidate cerebral perfusion parameters correlate with collateral circulation status and to assess their capacity to predict infarct growth in patients with acute ischemic stroke (AIS) eligible for endovascular therapy. Patients enrolled in the SWIFT PRIME trial with baseline computed tomography perfusion (CTP) scans were included. RAPID software was used to calculate mean relative cerebral blood volume (rCBV) in hypoperfused regions, and hypoperfusion index ratio (HIR). Blind assessments of collaterals were performed using CT angiography in the whole sample and cerebral angiogram in the endovascular group...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/29132407/frequency-and-determinants-for-hemorrhagic-transformation-of-posterior-cerebral-stroke-posterior-ischemic-stroke-and-hemorrhagic-transformation
#12
Francesca Valentino, Luana Gentile, Valeria Terruso, Sergio Mastrilli, Paolo Aridon, Paolo Ragonese, Caterina Sarno, Giovanni Savettieri, Marco D'Amelio
BACKGROUND: hemorrhagic transformation is a threatening ischemic stroke complication. Frequency of hemorrhagic transformation differs greatly among studies, and its risk factors have been usually studied in patients with anterior ischemic stroke who received thrombolytic therapy. We evaluated, in a hospital-based series of patients with posterior ischemic stroke not treated with thrombolysis, frequency and risk factors of hemorrhagic transformation. Patients with posterior circulation stroke were seen in our Department during the period January 2004 to December 2009...
November 13, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/29130477/transcranial-doppler-and-lower-extremity-function-in-older-adults-einstein-aging-study
#13
Ali Ezzati, Tatjana Rundek, Joe Verghese, Carol A Derby
OBJECTIVES: To determine whether transcranial Doppler ultrasound (TCD) measures of mean blood flow velocity (MBFV) in the major cerebral arteries are associated with measures of lower extremity function in community-dwelling older adults. DESIGN: Cross-sectional study. SETTING: Community sample. PARTICIPANTS: Individuals aged 70 and older (mean 79.5, 54% female) without dementia participating in the Einstein Aging Study (N = 200)...
November 11, 2017: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/29129249/association-between-hospital-rates-of-early-do-not-resuscitate-orders-and-favorable-neurological-survival-among-survivors-of-inhospital-cardiac-arrest
#14
Timothy J Fendler, John A Spertus, Kevin F Kennedy, Paul S Chan
BACKGROUND: Current guidelines recommend deferring prognostication for 48 to 72 hours after resuscitation from inhospital cardiac arrest. It is unknown whether hospitals vary in making patients who survive an arrest Do-Not-Resuscitate (DNR) early after resuscitation and whether a hospital's rate of early DNR is associated with its rate of favorable neurological survival. METHODS: Within Get With the Guidelines-Resuscitation, we identified 24,899 patients from 236 hospitals who achieved return of spontaneous circulation (ROSC) after inhospital cardiac arrest between 2006 and 2012...
November 2017: American Heart Journal
https://www.readbyqxmd.com/read/29121743/profiling-of-cardiovascular-and-cerebrovascular-disease-associated-microrna-expression-in-umbilical-cord-blood-in-gestational-hypertension-preeclampsia-and-fetal-growth-restriction
#15
Ilona Hromadnikova, Katerina Kotlabova, Katarina Ivankova, Yulia Vedmetskaya, Ladislav Krofta
BACKGROUND AND METHODS: Gene expression of 29 cardiovascular and cerebrovascular disease associated microRNAs was assessed in whole umbilical cord blood, compared between groups [47 gestational hypertension (GH), 56 preeclampsia (PE), 37 fetal growth restriction (FGR) and 44 normal pregnancies] and correlated with the severity of the disease with respect to clinical signs (mild PE vs. severe PE), delivery date (before and after 34weeks of gestation), and Doppler ultrasound parameters [pulsatility index (PI) in the umbilical artery, PI in the middle cerebral artery and the cerebroplacental ratio]...
December 15, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/29119953/-the-influence-of-non-invasive-electrical-stimulation-of-the-spinal-cord-on-the-locomotor-function-of-patients-presenting-with-movement-disorders-of-central-genesis
#16
M V Balykin, R N Yakupov, V V Mashin, E Yu Kotova, Yu M Balykin, Yu P Gerasimenko
AIM: The objective of the present study was to evaluate the influence of non-invasive (transcutaneous) electrical spinal cord stimulation on the locomotor function of the patients suffering from movement disorders. PATIENTS AND METHODS: The study involved 10 patients of both sexes at the age from 32 to 70 years (including 40% of men and 60% of women) presenting with the compromised locomotor function of varying severity associated with the disturbances of cerebral blood circulation caused either by an injury to the brain and spinal cord or by stroke...
2017: Voprosy Kurortologii, Fizioterapii, i Lechebnoĭ Fizicheskoĭ Kultury
https://www.readbyqxmd.com/read/29118804/hybrid-retrograde-antegrade-recanalization-of-acute-basilar-artery-occlusion
#17
James D Rossen, Edgar A Samaniego, Mishelle Paullus, Santiago Ortega-Gutierrez
Acute basilar artery (BA) occlusion has a very poor prognosis. Recanalization can be challenged by bilateral vertebral artery (VA) occlusions, arterial dissection, or advanced atherosclerotic disease. We describe a case in whom the BA was accessed and recanalized through a retrograde-antegrade approach from the anterior circulation using a large posterior communicating artery (PCOM). Once the BA had been crossed retrogradely through the PCOM, another microcatheter was advanced antegradely through the VA into the BA and right posterior cerebral artery using the "buddy-wire" technique...
October 2017: Interventional Neurology
https://www.readbyqxmd.com/read/29118798/internal-carotid-artery-and-the-proximal-m1-segment-are-optimal-targets-for-mechanical-thrombectomy
#18
Niko Sillanpää, Sara Protto, Jukka T Saarinen, Juha-Pekka Pienimäki, Janne Seppänen, Heikki Numminen, Harri Rusanen
Background and Purpose: Mechanical thrombectomy (MT) is an established treatment of acute anterior circulation stroke caused by large vessel occlusion (LVO). We compared the clinical outcome (3-month modified Rankin Scale, mRS) in hyperacute (<3h from the onset of symptoms) ischemic stroke between an MT and an intravenous thrombolysis (IVT) cohort in proximal (ICA and the proximal M1 segment of the middle cerebral artery) and distal (the distal M1 and the M2 segment) LVOs. Methods: We prospectively reviewed 67 patients who underwent MT with newer-generation stent retrievers...
October 2017: Interventional Neurology
https://www.readbyqxmd.com/read/29118796/a-comparison-of-mechanical-thrombectomy-in-the-m1-and-m2-segments-of-the-middle-cerebral-artery-a-review-of-585-consecutive-patients
#19
Pervinder Bhogal, Philipp Bücke, Muhammad AlMatter, Oliver Ganslandt, Hansjörg Bäzner, Hans Henkes, Marta Aguilar Pérez
Background: Mechanical thrombectomy for anterior-circulation large-vessel occlusion has shown benefit; however, the question of whether this technique is safe and effective in the distal vasculature remains unanswered. We sought to compare the outcome data from mechanical thrombectomy of the M2 branches of the middle cerebral artery (MCA) with those of the M1 segment. Methods: We performed a retrospective analysis of prospectively collected data of patients with acute ischaemic stroke undergoing mechanical thrombectomy of isolated M1 or M2 branches of the MCA between August 2008 and August 2016...
October 2017: Interventional Neurology
https://www.readbyqxmd.com/read/29117499/preclinical-chorioamnionitis-dysregulates-cxcl1-cxcr2-signaling-throughout-the-placental-fetal-brain-axis
#20
REVIEW
Tracylyn R Yellowhair, Shahani Noor, Jessie R Maxwell, Christopher V Anstine, Akosua Y Oppong, Shenandoah Robinson, Erin D Milligan, Lauren L Jantzie
In the United States, perinatal brain injury (PBI) is a major cause of infant mortality and childhood disability. For a large proportion of infants with PBI, central nervous system (CNS) injury begins in utero with inflammation (chorioamnionitis/CHORIO) and/or hypoxia-ischemia. While studies show CHORIO contributes to preterm CNS injury and is also a common independent risk factor for brain injury in term infants, the molecular mechanisms mediating inflammation in the placental-fetal-brain axis that result in PBI remain a gap in knowledge...
November 5, 2017: Experimental Neurology
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