keyword
MENU ▼
Read by QxMD icon Read
search

Mca stroke

keyword
https://www.readbyqxmd.com/read/28210239/flow-diversion-for-the-treatment-of-mca-bifurcation-aneurysms-a-single-centre-experience
#1
Pervinder Bhogal, Muhammad AlMatter, Hansjörg Bäzner, Oliver Ganslandt, Hans Henkes, Marta Aguilar Pérez
BACKGROUND: Intracranial aneurysms located at the bifurcation of the middle cerebral artery (MCA) can often be challenging for the neurointerventionalist. We aimed to evaluate the efficacy and safety of flow diverting stents (FDS) in the treatment of these aneurysms. MATERIALS AND METHODS: We retrospectively reviewed our prospectively maintained database to collect information for all patients with unruptured saccular bifurcation MCA aneurysms treated with FDS between January 2010 and January 2016...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28208149/distal-middle-cerebral-artery-branch-recanalization-does-not-affect-final-lesion-volume-in-ischemic-stroke
#2
Verena van Ginneken, Daniel Gierhake, Heinrich J Audebert, Jochen B Fiebach
BACKGROUND: Early recanalization in ischemic stroke is associated with favorable outcome. However, limited data are available on the effect of recanalization on infarct growth and functional outcome in stroke with distal middle cerebral artery (MCA) pathology. This study was aimed at determining the effect of recanalization in acute stroke patients with perfusion-diffusion mismatch and occlusion or high-grade stenosis of a distal MCA branch. METHODS: We prospectively examined 34 consecutive stroke patients with perfusion-diffusion mismatch and M3 or M4 pathology within 24 h of symptom onset...
February 17, 2017: Cerebrovascular Diseases
https://www.readbyqxmd.com/read/28208130/factors-related-to-cardioembolism-as-major-predictors-of-poor-survival-after-first-ever-middle-cerebral-artery-stroke-treated-with-thrombolysis
#3
Renata Dal-Prá Ducci, Marcos Christiano Lange, Viviane de Hiroki Flumignan Zétola, Tatjana Rundek
BACKGROUND AND PURPOSE: Prognostic factors related to mortality rates after stroke have been reported; however, most studies included different treatments and did not focus solely on ischemic stroke. The study aimed to report the short- and long-term survival and predictors of death in patients with first-ever ischemic stroke in the middle cerebral artery (MCA) territory, submitted to intravenous thrombolysis (IVT). METHODS: A prospective observational cohort study of patients with first-ever ischemic stroke in the MCA territory treated with IVT from March 2010 to February 2015 was conducted, and patients were followed up until May 2015...
February 17, 2017: Cerebrovascular Diseases
https://www.readbyqxmd.com/read/28192099/role-of-interleukin-10-in-the-neuroprotective-effect-of-the-angiotensin-type-2-receptor-agonist-compound-21-after-ischemia-reperfusion-injury
#4
Abdelrahman Y Fouda, Bindu Pillai, Krishnan M Dhandapani, Adviye Ergul, Susan C Fagan
INTRODUCTION: We and others have shown that the angiotensin type 2 (AT2) receptor agonist, compound 21 (C21), provides neuroprotection and enhances recovery in rodent stroke models yet the mechanism involved is not known. Moreover, C21 treatment is associated with an anti-inflammatory response. Here we tested the hypothesis that C21 mediates neuroprotection by upregulating the neuroprotective and anti-inflammatory cytokine, interleukin (IL)-10. METHODS: Wistar rats were subjected to 3h-middle cerebral artery suture occlusion and treated at reperfusion with C21 (0...
February 10, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28178170/use-of-susceptibility-weighted-imaging-in-assessing-ischemic-penumbra-a-case-report
#5
Xiujuan Wu, Song Luo, Ying Wang, Yang Chen, Jun Liu, Jing Bai, Jiachun Feng, Hongliang Zhang
RATIONALE: The ischemic penumbra assessment is essential for the subsequent therapy and prediction of evolution in patients with acute ischemic infraction. Although controversial as a perfect equivalence to penumbra, perfusion-weighted imaging (PWI)-diffusion-weighted imaging (DWI) mismatch may predict the response to thrombolysis. Due to the reliance of PWI on contrast agents, noninvasive alternatives remain an unmet need. PATIENT CONCERNS: We reported a 65-year-old man complained of paroxysmal hemiplegia of his right limbs and anepia for 2 days, whereas the symptoms lasted for about 12 hours when he admitted to the hospital...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28165757/cerebral-regions-preserved-by-successful-endovascular-recanalization-of-acute-m1-segment-occlusions-a-voxel-based-analysis
#6
Seyedmehdi Payabvash, Shayandokht Taleb, Adnan I Qureshi
OBJECTIVES: To identify cerebral regions preserved by successful recanalization of middle cerebral artery (MCA) M1 segment, and their association with early clinical outcome. METHODS: Forty-seven patients who underwent endovascular treatment for acute unilateral M1 segment occlusion were included. Successful recanalization was defined by a modified Thrombolysis in Cerebral Infarction (mTICI) score of 2b/3. Final infarct volumes were segmented on follow-up MRI/CT, 2-7 days post symptom onset...
February 6, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28163065/a-standardized-method-to-measure-brain-shifts-with-decompressive-hemicraniectomy
#7
Askiel Bruno, Abdurrehman Zahran, Nina Paletta, Laith Maali, Fenwick T Nichols, Ramon Figueroa
BACKGROUND: A standardized, reliable, and practical method for measuring decompressive hemicraniectomy (DHC) defects and brain shifts in malignant middle cerebral artery (MCA) territory infarction is needed for reliable comparisons between computed tomography (CT) scans. Such a method could facilitate further studies on the effects of DHC. NEW METHOD: We describe and apply a method for measuring DHC defects and brain shifts on CT scans in 25 patients with malignant MCA territory infarction...
February 2, 2017: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/28150524/akinetic-mutism-and-the-story-of-david
#8
Rebecca Sinden, Barbara A Wilson, Anita Rose, Nimisha Mistry
Following a description about the characteristics of akinetic mutism (AM) and how it differs from locked-in syndrome (LIS) and a disorder of consciousness (DOC), we present the case of David, a 71-year-old man with AM. David sustained a stroke following a middle cerebral artery (MCA) thrombus. A CT scan at the time detected old ischaemic infarcts affecting the right frontal lobe, the left occipital lobe and the left parietal lobe so David had bilateral brain damage. Initially thought to have a DOC, further neuropsychological assessments administered when David had improved a little, resulted in the diagnosis of AM...
February 2, 2017: Neuropsychological Rehabilitation
https://www.readbyqxmd.com/read/28136710/atherosclerotic-plaque-burden-of-middle-cerebral-artery-and-extracranial-carotid-artery-characterized-by-mri-in-patients-with-acute-ischemic-stroke-in-china-association-and-clinical-relevance
#9
Ye Cao, Yi Sun, Bin Zhou, Huilin Zhao, Ying Zhu, Jianrong Xu, Xiaosheng Liu
OBJECTIVES: This study sought to compare the atherosclerotic plaque burden between middle cerebral artery (MCA) and extracranial carotid artery (ECA) in ischemic stroke patients using high-resolution, black-blood (HR BB) MRI and to investigate the relationship between plaque burden found in both arteries and stroke severity. METHODS: All subjects with recent ischemic stroke underwent MCA and ECA HR BB MRI at 3.0 Tesla. For each artery segment, the thickness, area and signal intensities of plaques were recorded...
January 30, 2017: Neurological Research
https://www.readbyqxmd.com/read/28126752/cerebral-temperature-dysregulation-mr-thermographic-monitoring-in-a-nonhuman-primate-study-of-acute-ischemic-stroke
#10
S Dehkharghani, C C Fleischer, D Qiu, M Yepes, F Tong
BACKGROUND AND PURPOSE: Cerebral thermoregulation remains poorly understood. Temperature dysregulation is deeply implicated in the potentiation of cerebrovascular ischemia. We present a multiphasic, MR thermographic study in a nonhuman primate model of MCA infarction, hypothesizing detectable brain temperature disturbances and brain-systemic temperature decoupling. MATERIALS AND METHODS: Three Rhesus Macaque nonhuman primates were sourced for 3-phase MR imaging: 1) baseline MR imaging, 2) 7-hour continuous MR imaging following minimally invasive, endovascular MCA stroke induction, and 3) poststroke day 1 MR imaging follow-up...
January 26, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28121918/intracranial-dermoid-cyst-rupture-related-brain-ischemia-case-report-and-hemodynamic-study
#11
Hang Jin, Zhen-Ni Guo, Yun Luo, Ren Zhao, Ming-Shuo Sun, Yi Yang
RATIONALE: Spontaneous rupture of intracranial dermoid cyst is a rare but serious clinical event that can result in cerebral ischemia. Cerebral vasospasm and vasculitis are considered as potential mechanisms of dermoid cyst rupture-related cerebral ischemia. However, the hemodynamic mechanisms between cerebral ischemia and dermoid cyst rupture are not well known. PATIENT CONCERNS: A 55-year-old, right-handed man was admitted to our hospital with sudden receptive aphasia and right-sided hypoalgesia...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28118025/inter-rater-variability-for-ct-angiography-evaluation-between-neurologists-and-neuroradiologist-in-acute-stroke-patients
#12
Michal Bar, Jir Kra, Tomas Jonszta, Vaclav Marcian, Martin Kuliha, Robert Mikulík
OBJECTIVES: The diagnosis of arterial occlusion has a considerable impact on the indication of mechanical thrombectomy, and computed tomography angiography (CTA) is recommended in management of acute stroke. The goal of present study is to assess the inter-rater agreement in the diagnosis of occlusion of intracranial arteries on CTA between a neuroradiologist and neurologists. METHODS: CTA images of 75 acute-stroke patients were evaluated for occlusion of intracranial arteries by an experienced interventional neuroradiologist, stroke and general neurologist...
January 24, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28112023/cerebral-collateral-therapeutics-in-acute-ischemic-stroke-a-randomized-preclinical-trial-of-four-modulation-strategies
#13
Simone Beretta, Alessandro Versace, Davide Carone, Matteo Riva, Valentina Dell'Era, Elisa Cuccione, Ruiyao Cai, Laura Monza, Silvia Pirovano, Giada Padovano, Fabio Stiro, Luca Presotto, Giovanni Paternò, Emanuela Rossi, Carlo Giussani, Erik P Sganzerla, Carlo Ferrarese
Cerebral collaterals are dynamically recruited after arterial occlusion and highly affect tissue outcome in acute ischemic stroke. We investigated the efficacy and safety of four pathophysiologically distinct strategies for acute modulation of collateral flow (collateral therapeutics) in the rat stroke model of transient middle cerebral artery (MCA) occlusion. A composed randomization design was used to assign rats (n = 118) to receive phenylephrine (induced hypertension), polygeline (intravascular volume load), acetazolamide (cerebral arteriolar vasodilation), head down tilt (HDT) 15° (cerebral blood flow diversion), or no treatment, starting 30 min after MCA occlusion...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28111255/delayed-treatment-of-6-bromoindirubin-3-oxime-stimulates-neurogenesis-and-functional-recovery-after-focal-ischemic-stroke-in-mice
#14
Li-Li Wang, Jimei Li, Xiaohuan Gu, Ling Wei, Shan Ping Yu
Glycogen synthase kinase 3β (GSK3β) was originally identified as a regulator for glycogen metabolism and is now an important therapeutic target for a variety of brain disorders including neurodegenerative diseases due to it's pivotal role in cellular metabolism, proliferation and differentiation. In the development of stroke therapies focusing on tissue repair and functional recovery, promoting neurogenesis is a main approach in regenerative medicine. In the present investigation, we explored the effects of a GSK3β specific inhibitor, 6-Bromoindirubin-3'-oxime (BIO), on regenerative activities of neuroblasts in the subventricular zone (SVZ) and functional recovery after focal cerebral ischemia...
January 19, 2017: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28081270/outcome-and-treatment-effects-in-stroke-associated-with-acute-cervical-ica-occlusion
#15
Michael Gliem, John-Ih Lee, Aurica Barckhan, Bernd Turowski, Hans-Peter Hartung, Sebastian Jander
BACKGROUND: Endovascular therapy (EVT) with stent retrievers in addition to i.v. thrombolysis (IVT) has proven effective in acute stroke patients with middle cerebral artery (MCA, M1 segment) and distal internal carotid artery (ICA) occlusion. Limited data exist concerning acute cervical ICA occlusion, either alone or in combination with intracranial ICA occlusion (tandem occlusion). Therefore we analyzed outcome and treatment effects in stroke associated with cervical ICA occlusion, with specific focus on the impact of intracranial ICA or M1 patency...
2017: PloS One
https://www.readbyqxmd.com/read/28068417/preserved-collateral-blood-flow-in-the-endovascular-m2cao-model-allows-for-clinically-relevant-profiling-of-injury-progression-in-acute-ischemic-stroke
#16
Philip Little, Ola Kvist, Rikard Grankvist, Stefan Jonsson, Peter Damberg, Michael Söderman, Fabian Arnberg, Staffan Holmin
Interventional treatment regimens have increased the demand for accurate understanding of the progression of injury in acute ischemic stroke. However, conventional animal models severely inhibit collateral blood flow and mimic the malignant infarction profile not suitable for treatment. The aim of this study was to provide a clinically relevant profile of the emergence and course of ischemic injury in cases suitable for acute intervention, and was achieved by employing a M2 occlusion model (M2CAO) that more accurately simulates middle cerebral artery (MCA) occlusion in humans...
2017: PloS One
https://www.readbyqxmd.com/read/28064357/ischemic-stroke-experimental-models-and-reality
#17
REVIEW
Clemens J Sommer
The vast majority of cerebral stroke cases are caused by transient or permanent occlusion of a cerebral blood vessel ("ischemic stroke") eventually leading to brain infarction. The final infarct size and the neurological outcome depend on a multitude of factors such as the duration and severity of ischemia, the existence of collateral systems and an adequate systemic blood pressure, etiology and localization of the infarct, but also on age, sex, comorbidities with the respective multimedication and genetic background...
February 2017: Acta Neuropathologica
https://www.readbyqxmd.com/read/28060307/lateral-chronic-cranial-window-preparation-enables-in-vivo-observation-following-distal-middle-cerebral-artery-occlusion-in-mice
#18
Simon H Bayerl, Melina Nieminen-Kelhä, Thomas Broggini, Peter Vajkoczy, Vincent Prinz
Focal cerebral ischemia (i.e., ischemic stroke) may cause major brain injury, leading to a severe loss of neuronal function and consequently to a host of motor and cognitive disabilities. Its high prevalence poses a serious health burden, as stroke is among the principal causes of long-term disability and death worldwide(1). Recovery of neuronal function is, in most cases, only partial. So far, treatment options are very limited, in particular due to the narrow time window for thrombolysis(2,3). Determining methods to accelerate recovery from stroke remains a prime medical goal; however, this has been hampered by insufficient mechanistic insights into the recovery process...
December 29, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28056282/-diagnostic-value-of-clot-burden-score-of-susceptibility-vessel-sign-in-arterial-thrombosis-of-acute-ischemic-stroke-and-its-association-with-prognosis
#19
Y Huang, W L Mei, H Q Liu, Y L Li, Z Z Chen, D D Li, J W Zhang
Objective: To analysis the value of susceptibility vessel sign (SVS) in susceptibility weighted imaging (SWI) in detecting thrombogenesis in middle cerebral artery (MCA) and its association with clinical prognosis. Methods: From December 2014 to December 2015 in People's Hospital of Zhengzhou University, we retrospectively examined clinical, imaging and experimental datafrom 104 consecutive patients with acute ischemic strokeand compared the consistency of detecting thrombus between SWI and magnetic resonance angiography (MRA) using Kappa analysis...
January 3, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28028726/predictors-of-in-hospital-mortality-and-dependence-at-discharge-in-patients-with-mca-stroke-with-intravenous-thrombolysis
#20
Renata Dal-Prá Ducci, Marcos Christiano Lange, Viviane de Hiroki Flumignan Zétola
Early risk stratification of mortality and dependence is important for guiding medical decision-making in stroke care. The study aim is to evaluate whether there are any differences between risk factors for in-hospital mortality and dependence at discharge in patients with first-episode ischemic stroke in the middle cerebral artery (MCA) receiving intravenous thrombolysis (IVT) treatment. The study comprised a single-center cohort of patients admitted consecutively for first-episode MCA ischemic stroke. A logistic regression analysis was performed to determine the variables associated with in-hospital mortality and dependence at discharge...
December 27, 2016: Internal and Emergency Medicine
keyword
keyword
106497
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"