keyword
MENU ▼
Read by QxMD icon Read
search

arterial territories brain

keyword
https://www.readbyqxmd.com/read/28095387/mri-of-cerebellar-infarction
#1
Laurens J L De Cocker, Karl-Olof Lövblad, Jeroen Hendrikse
BACKGROUND: MRI is the imaging modality of choice for diagnosing brain infarction. Because of few or atypical clinical symptoms and a relatively low sensitivity of CT scans, many cerebellar infarctions may be detected only with MRI. With adequate recognition of cerebellar infarction on MRI and prompt initiation or optimisation of preventive therapeutic measures, more dramatic strokes may be avoided in selected cases. SUMMARY: We first briefly review the clinical presentation of cerebellar infarctions, followed by a short refresher on cerebellar anatomy and pathophysiological mechanisms of cerebellar infarcts...
January 18, 2017: European Neurology
https://www.readbyqxmd.com/read/28065615/-man-in-the-barrel-syndrome-with-anterior-spinal-artery-infarct-due-to-vertebral-artery-dissection
#2
Carolina Rouanet, Danyelle Reges, Eva Rocha, Vivian Gagliardi, Marcel Ken Uehara, Maramelia Alves Miranda, Gisele Sampaio Silva
BACKGROUND: Man in the barrel syndrome (MBS) is a condition of brachial diplegia initially described after a bilateral watershed cerebral infarct between the anterior and the middle cerebral artery territories. OBJECTIVE: To report a case of MBS as a consequence of anterior spinal artery infarct due to vertebral artery dissection. DISCUSSION: More recently, nonischemic lesions in brain and brain stem have also been described as etiologies of MBS...
January 5, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28064357/ischemic-stroke-experimental-models-and-reality
#3
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...
January 7, 2017: Acta Neuropathologica
https://www.readbyqxmd.com/read/28053539/complex-neurological-symptoms-in-bilateral-thalamic-stroke-due-to-percheron-artery-occlusion
#4
Paola Caruso, Paolo Manganotti, Rita Moretti
The artery of Percheron is a rare anatomical variant where a single thalamic perforating artery arises from the proximal posterior cerebral artery (P1 segment) between the basilar artery and the posterior communicating artery and supplies the rostral mesencephalon and both paramedian territories of the thalami. Almost one-third of human brains present this variant. Occlusion of the artery of Percheron mostly results in a bilateral medial thalamic infarction, which usually manifests with altered consciousness (including coma), vertical gaze paresis, and cognitive disturbance...
2017: Vascular Health and Risk Management
https://www.readbyqxmd.com/read/28043958/fluctuating-drowsiness-following-cardiac-catheterisation-artery-of-percheron-ischaemic-stroke-causing-bilateral-thalamic-infarcts
#5
Daniel Hammersley, Ankur Arora, Madhava Dissanayake, Nabarun Sengupta
An 81-year-old man underwent cardiac catheterisation to investigate breathlessness and left ventricular impairment of unknown cause. He had unobstructed coronary arteries. Immediately following the procedure, he became suddenly unresponsive with vertical gaze palsy, anisocoria and bilateral upgoing plantar responses. He made a rapid recovery to his premorbid state 25 min later with no residual focal neurological signs. He then had multiple unresponsive episodes, interspaced with complete resolution of symptoms and neurological signs...
January 2, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28030893/recent-advances-in-understanding-audiovestibular-loss-of-a-vascular-cause
#6
Hyun-Ah Kim, Hyung Lee
Acute audiovestibular loss is characterized by abrupt onset of prolonged (lasting days) vertigo and hearing loss. Acute ischemic stroke in the distribution of the anterior inferior cerebellar artery (AICA) is known to be the leading cause of acute audiovestibular loss. So far, eight subgroups of AICA territory infarction have been identified according to the patterns of audiovestibular dysfunctions, among which the most common pattern is the combined loss of auditory and vestibular functions. Unlike inner ear dysfunction of a viral cause , which can commonly present as an isolated vestibular (i...
December 12, 2016: Journal of Stroke
https://www.readbyqxmd.com/read/28025410/a-case-of-internal-carotid-thrombus-associated-with-brain-infarction
#7
Shota Sakai, Takeshi Uwatoko, Koji Ishitsuka, Hiroshi Sugimori
A 49-year-old man was transferred to our hospital with chief complaint of global aphasia and weakness of right upper and lower limbs. Brain MRI showed ultra-acute cerebral infarction in left anterior cerebral artery and middle cerebral artery territory and MRA showed occlusion of A2 and M2. Although t-PA was administrated intravenously, symptoms didn't improve and giant internal carotid thrombus (size 6 × 7 × 17 mm) was recognized at left internal carotid artery by carotid ultrasonography. After started anticoagulant therapy, thrombus was miniaturized gradually and finally disappeared...
December 23, 2016: Rinshō Shinkeigaku, Clinical Neurology
https://www.readbyqxmd.com/read/27992543/meg-frequency-analysis-depicts-the-impaired-neurophysiological-condition-of-ischemic-brain
#8
Shinichi Sakamoto, Hidetoshi Ikeda, Naohiro Tsuyuguchi, Takehiro Uda, Eiichi Okumura, Takashi Asakawa, Yasuhiro Haruta, Hideki Nishiyama, Toyoji Okada, Hajime Kamada, Kenji Ohata, Yukio Miki
PURPOSE: Quantitative imaging of neuromagnetic fields based on automated region of interest (ROI) setting was analyzed to determine the characteristics of cerebral neural activity in ischemic areas. METHODS: Magnetoencephalography (MEG) was used to evaluate spontaneous neuromagnetic fields in the ischemic areas of 37 patients with unilateral internal carotid artery (ICA) occlusive disease. Voxel-based time-averaged intensity of slow waves was obtained in two frequency bands (0...
2016: PloS One
https://www.readbyqxmd.com/read/27903814/blink-associated-contralateral-eccentric-saccades-as-a-rare-sign-of-unilateral-brain-injury
#9
Ilaria Zivi, Eugenio Bertelli, Giacinta Bilotti, Ignazio Alessandro Clemente, Leopold Saltuari, Giuseppe Frazzitta
OBJECTIVE: To describe a rare sign of unilateral brain injury as a form of unwanted blink-associated contralateral eccentric saccades. METHODS: A 62-year-old patient who underwent an ischemic stroke affecting the entire right middle cerebral artery territory came to our attention 1 year after stroke, manifesting with transient contralateral conjugate gaze deviations associated with spontaneous blinking. We complemented the regular neurologic evaluation with brain MRI, study of evoked potentials, electroneurography of the facial nerve, and infrared video-oculoscopy...
January 10, 2017: Neurology
https://www.readbyqxmd.com/read/27881097/ischaemic-stroke-and-clostridium-septicum-sepsis-and-meningitis-in-a-patient-with-occult-colon-carcinoma-a-case-report-and-review-of-the-literature
#10
REVIEW
Kosmas Macha, Antje Giede-Jeppe, Hannes Lücking, Roland Coras, Hagen B Huttner, Jürgen Held
BACKGROUND: Clostridium septicum is a rare cause of meningitis and brain abscess in children and adults. Gas production by the pathogen can lead to pneumocephalus and the overall mortality rate of Clostridium septicum CNS infection is as high as 74%. The most common entry site of the pathogen is the gastrointestinal tract. CASE PRESENTATION: We describe a 74-year-old man who presented with a left-sided cerebral infarction in the middle cerebral artery territory...
November 24, 2016: BMC Neurology
https://www.readbyqxmd.com/read/27856160/anti-excitotoxic-effects-of-cannabidiol-are-partly-mediated-by-enhancement-of-ncx2-and-ncx3-expression-in-animal-model-of-cerebral-ischemia
#11
Sepideh Khaksar, Mohammad Reza Bigdeli
Excitotoxicity and imbalance of sodium and calcium homeostasis trigger pathophysiologic processes in cerebral ischemia which can accelerate neuronal death. Neuroprotective role of cannabidiol (CBD), one of the main non-psychoactive phytocannabinoids of the cannabis plant, has attracted attention of many researchers in the neurodegenerative diseases studies. The present investigation was designed to determine whether cannabidiol can alleviate the severity of ischemic damages and if it is able to exert its anti-excitotoxic effects through sodium and calcium regulation...
January 5, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/27836651/magnetic-resonance-imaging-characteristics-of-ischemic-stroke-in-an-afro-caribbean-population-a-1-year-prospective-mri-study-on-534%C3%A2-consecutive-patients
#12
M Mejdoubi, A Signate, S Colombani, A Arrigo, S Olindo
PURPOSES: Few population-based MRI studies on stroke, particularly in African-descent populations, are available. Based on a 1-year Afro-Caribbean population-based study MRI, ischemic stroke characteristics were extensively analyzed. METHODS: All strokes occurring in Martinique (390,371 inhabitants) were prospectively included. Ascertainment was based, whenever possible, on MRI. All patients were categorized as single- (subclassified as cortical, cortical-subcortical, subcortical, lacunar) or multiple-lesion pattern, and vascular (single, multiple or junctional) territory...
November 8, 2016: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/27827330/insulin-resistance-is-a-risk-factor-for-silent-lacunar-infarction
#13
Ji Eun Lee, Dong Wook Shin, Jae Moon Yun, Sang Hyuck Kim, You-Seon Nam, BeLong Cho, Jae-Sung Lim, Han-Yeong Jeong, Hyung-Min Kwon, Jin-Ho Park
BACKGROUND AND PURPOSE: This study aims to investigate the association between insulin resistance (IR) and silent lacunar infarction (SLI) in healthy adults. METHODS: We recruited 2326 healthy Korean adults who took health checkups, including a brain magnetic resonance imaging. SLI was defined as an infarction measuring 0.3 to 1.5 cm in diameter that was localized in the territory of perforating branches of cerebral arteries, as seen in the brain magnetic resonance imaging...
December 2016: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/27816341/stroke-prevention
#14
Clothilde Isabel, David Calvet, Jean-Louis Mas
Patients who have had a stroke are at high risk for recurrent stroke, myocardial infarction, and vascular death. Prevention of these events should be initiated promptly after stroke, because many recurrent events occur early, and should be tailored to the precise cause of stroke, which may require specific treatment. Lifestyle advice including abstinence from smoking, regular exercise, Mediterranean-style diet, and reduction of salt intake and alcohol consumption are recommended for all patients with stroke...
December 2016: La Presse Médicale
https://www.readbyqxmd.com/read/27815101/cerebral-embolic-protection-during-transcatheter-aortic-valve-replacement
#15
Samir R Kapadia, Susheel Kodali, Raj Makkar, Roxana Mehran, Ronald M Lazar, Robert Zivadinov, Michael G Dwyer, Hasan Jilaihawi, Renu Virmani, Saif Anwaruddin, Vinod H Thourani, Tamim Nazif, Norman Mangner, Felix Woitek, Amar Krishnaswamy, Stephanie Mick, Tarun Chakravarty, Mamoo Nakamura, James M McCabe, Lowell Satler, Alan Zajarias, Wilson Y Szeto, Lars Svensson, Maria C Alu, Roseann M White, Carlye Kraemer, Azin Parhizgar, Martin B Leon, Axel Linke
BACKGROUND: Neurological events and brain infarction after transcatheter aortic valve replacement (TAVR) are concerns which may be reduced with transcatheter embolic protection (TEP). OBJECTIVE: Evaluate the safety and efficacy of TEP during TAVR. METHODS: Nineteen centers randomized 363 patients undergoing TAVR to safety (n=123), device imaging (n=121), and control imaging (n=119). The primary safety endpoint was major adverse cardiac and cerebrovascular events (MACCE) at 30 days and the primary efficacy endpoint was reduction in new lesion volume in protected brain territories on MRI scans at 2-7 days...
October 27, 2016: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/27814740/spatio-temporal-profile-phenotypic-diversity-and-fate-of-recruited-monocytes-into-the-post-ischemic-brain
#16
Lidia Garcia-Bonilla, Giuseppe Faraco, Jamie Moore, Michelle Murphy, Gianfranco Racchumi, Jayashree Srinivasan, David Brea, Costantino Iadecola, Josef Anrather
BACKGROUND: A key feature of the inflammatory response after cerebral ischemia is the brain infiltration of blood monocytes. There are two main monocyte subsets in the mouse blood: CCR2(+)Ly6C(hi) "inflammatory" monocytes involved in acute inflammation, and CX3CR1(+)Ly6C(lo) "patrolling" monocytes, which may play a role in repair processes. We hypothesized that CCR2(+)Ly6C(hi) inflammatory monocytes are recruited in the early phase after ischemia and transdifferentiate into CX3CR1(+)Ly6C(lo) "repair" macrophages in the brain...
November 4, 2016: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/27801767/pontine-warning-syndrome-a-chameleon-of-ischemic-stroke
#17
Alejandro Enriquez-Marulanda, Pablo Amaya-Gonzalez, Jorge L Orozco
INTRODUCTION: Crescendo transient ischemic attacks or "Stroke Warning Syndromes" consist of stereotyped frequent short-lasting episodes of focal neurological deficits. This is explained by intermittent hypoperfusion of the vascular territory of terminal arteries with insufficient collateral flow, presenting a high risk for subsequent infarction. Pontine warning syndrome (PWS) is a subtype of this atypical presentation of stroke/transient ischemic attack and is considered a challenge for diagnosis...
November 2016: Neurologist
https://www.readbyqxmd.com/read/27801401/-perfusion-criteria-of-the-eicma-efficacy-in-patients-with-symptomatic-occlusion-of-the-internal-carotid-artery
#18
V A Lukshin, D Yu Usachev, I N Pronin, A D Akhmedov, E I Shul'ts
AIM: To investigate changes in cerebral perfusion in patients with unilateral internal carotid artery occlusion before and after surgical revascularization of the brain, depending on the clinical efficacy of surgical treatment. MATERIAL AND METHODS: The study included 60 patients with unilateral ICA occlusions who underwent placement of an extra-intracranial microvascular anastomosis (EICMA). All patients underwent a CT perfusion study before and after cerebral revascularization...
2016: Zhurnal Voprosy Neĭrokhirurgii Imeni N. N. Burdenko
https://www.readbyqxmd.com/read/27798274/placing-intracerebral-probes-to-optimise-detection-of-delayed-cerebral-ischemia-and-allow-for-the-prediction-of-patient-outcome-in-aneurysmal-subarachnoid-haemorrhage
#19
Yannick Tholance, Gleicy K Barcelos, Armand Perret-Liaudet, Edris Omar, Romain Carrillon, Sébastien Grousson, Thomas Lieutaud, Frédéric Dailler, Stéphane Marinesco
Cerebral microdialysis could be useful to detect delayed cerebral ischemia in aneurysmal subarachnoid haemorrhage patients. The optimal location of the probes, however, remains controversial. Here, we determined the vascular territories with the highest infarct risk in relation to aneurysm location to define probe implantation guidelines. These guidelines were retrospectively validated by studying the likelihood of probe to fall in a secondary infarct area, and by analysing their influence to predict patient outcome...
October 21, 2016: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/27790405/trans-radial-carotid-artery-stenting-in-a-patient-with-abdominal-aortic-occlusion
#20
Jin Heon Ha, Hoon Kim, Ik Seong Park, Seong-Rim Kim
We report transradial access (TRA) for emergency carotid artery stenting (CAS) as a useful alternative when the femoral artery cannot be accessed. A 63-year-old man arrived at our emergency room 30 minutes after left hemiplegia and loss of consciousness. Brain computed tomography (CT) anigograpy showed occlusion of the right interntal carotid artery (ICA) and CT perfusion revealed delayed time-to-peak in the territory of the middle cerebral artery. For, endovascular treatment, trans-femoral access (TFA) was attempted but failed due to occlusion of the abdominal aorta...
June 2016: Journal of Cerebrovascular and Endovascular Neurosurgery
keyword
keyword
106518
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"