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thalamic stroke

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https://www.readbyqxmd.com/read/28208139/mri-based-neuroanatomical-predictors-of-dysphagia-dysarthria-and-aphasia-in-patients-with-first-acute-ischemic-stroke%C3%A2
#1
Heather L Flowers, Mohammed A AlHarbi, David Mikulis, Frank L Silver, Elizabeth Rochon, David Streiner, Rosemary Martino
BACKGROUND: Due to the high post-stroke frequency of dysphagia, dysarthria, and aphasia, we developed comprehensive neuroanatomical, clinical, and demographic models to predict their presence after acute ischemic stroke. METHODS: The sample included 160 randomly selected first-ever stroke patients with confirmed infarction on magnetic resonance imaging from 1 tertiary stroke center. We documented acute lesions within 12 neuroanatomical regions and their associated volumes...
February 16, 2017: Cerebrovascular Diseases Extra
https://www.readbyqxmd.com/read/28202067/acupuncture-for-acute-moderate-thalamic-hemorrhage-randomized-controlled-trial-study-protocol
#2
Chengwei Wang, Chao You, Lu Ma, Mengyue Liu, Meng Tian, Ning Li
BACKGROUND: Thalamic hemorrhage (TH) is a neurological insult with a high rate of morbidity and mortality. Moderate TH (10-30 ml) accounts for more than half of all TH. Treatment remains controversial. The role of acupuncture in patients with moderate TH is not clear. METHODS: We will conduct a single-center, randomized, parallel group, and assessor-blinded clinical trial. A total of 488 patients with moderate TH will be randomly assigned to one of eight groups: 10-15 cc left sided TH study group (N = 61) and a corresponding control group (N = 61), 10-15 cc right sided TH study group (N = 61) and a corresponding control group, 15-30 cc left sided TH study group (N = 61) and a corresponding control group (N = 61), and 15-30 cc right sided TH study group (N = 61) and a corresponding control group...
February 15, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28167284/isolated-pseudoabducens-palsy-in-acute-thalamic-stroke
#3
Mehdi Ghasemi, Nazish Riaz, Anna Bjornsdottir, David Paydarfar
Oculomotor abnormalities are rarely noted in thalamic strokes. We describe isolated right pseudoabducens palsy in a young patient with acute left thalamic infarction revealed by diffusion-weighted magnetic resonance imaging. The patient's horizontal diplopia and oculomotor palsy resolved within 3days. This case supports the hypothesis that a lesion can cause isolated esotropia by interrupting descending inhibitory convergence pathways that traverse the paramedian thalamus and decussate in the subthalamic region to innervate the contralateral third oculomotor nucleus...
February 1, 2017: Clinical Imaging
https://www.readbyqxmd.com/read/28153639/parkinson-s-disease-alters-multisensory-perception-insights-from-the-rubber-hand-illusion
#4
Catherine Ding, Colin J Palmer, Jakob Hohwy, George J Youssef, Bryan Paton, Naotsugu Tsuchiya, Julie C Stout, Dominic Thyagarajan
BACKGROUND: Manipulation of multisensory integration induces illusory perceptions of body ownership. Patients with Parkinson's disease (PD), a neurodegenerative disorder characterised by striatal dopamine deficiency, are prone to illusions and hallucinations and have sensory deficits. Dopaminergic treatment also aggravates hallucinations in PD. Whether multisensory integration in body ownership is altered by PD is unexplored. OBJECTIVE: To study the effect of dopamine neurotransmission on illusory perceptions of body ownership...
January 31, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28151918/thalamic-pain-alleviated-by-stellate-ganglion-block-a-case-report
#5
Chenlong Liao, Min Yang, Pengfei Liu, Wenxiang Zhong, Wenchuan Zhang
RATIONALE: Thalamic pain is a distressing and treatment-resistant type of central post-stroke pain. Although stellate ganglion block is an established intervention used in pain management, its use in the treatment of thalamic pain has never been reported. PATIENT CONCERNS: A 66-year-old woman presented with a 3-year history of severe intermittent lancinating pain on the right side of the face and the right hand. The pain started from the ulnar side of the right forearm after a mild ischemic stroke in bilateral basal ganglia and left thalamus...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28127679/motion-illusion-evidence-towards-human-vestibulo-thalamic-projections
#6
Aasef G Shaikh, Dominik Straumann, Antonella Palla
Contemporary studies speculated that cerebellar network responsible for motion perception projects to the cerebral cortex via vestibulo-thalamus. Here, we sought for the physiological properties of vestibulo-thalamic pathway responsible for the motion perception. Healthy subjects and the patient with focal vestibulo-thalamic lacunar stroke spun a hand-held rheostat to approximate the value of perceived angular velocity during whole-body passive earth-vertical axis rotations in yaw plane. Vestibulo-ocular reflex was simultaneously measured with high-resolution search coils (paradigm 1)...
January 27, 2017: Cerebellum
https://www.readbyqxmd.com/read/28126035/an-unusual-presentation-of-a-stroke-in-a-developing-country-a-case-report
#7
N D B Ehelepola, T I D M Ranasinghe, B Prashanthi, H M P A G S Bandara
BACKGROUND: Patients often, but not always, present with features that allow easy differentiation between traumatic brain injury and a stroke. Early diagnosis and appropriate treatment are crucial for a good outcome in both. Millions of people worldwide climb coconut and other trees without any protective gear. We present a case of a coconut tree climber found unconscious after a fall, initially misdiagnosed as a traumatic brain injury but later proven to be a hemorrhagic stroke. We discuss how to prevent such incidents and why that deserves more attention...
January 26, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28053539/complex-neurological-symptoms-in-bilateral-thalamic-stroke-due-to-percheron-artery-occlusion
#8
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/28045864/bilateral-central-retinal-vein-occlusions-in-a-young-patient-with-a-history-of-eosinophilic-pneumonia-and-thalamic-stroke
#9
Gina Yu, Peng Sun, Tavé van Zyl, Rachel Tandias, Jorge G Arroyo
PURPOSE: To describe a case of a central retinal vein occlusion in a young patient with a history of eosinophilic pneumonia. METHODS: A retrospective case report of a 45-year-old woman with acute painless vision loss for 9 days after multiple episodes of eosinophilic pneumonia and thalamic stroke. Fluorescein angiography, spectral domain optical coherence tomography, and clinical examination were performed. She was then treated with intravitreal bevacizumab and pan-retinal photocoagulations...
December 29, 2016: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/28043958/fluctuating-drowsiness-following-cardiac-catheterisation-artery-of-percheron-ischaemic-stroke-causing-bilateral-thalamic-infarcts
#10
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/28003494/thalamic-stroke-resulting-in-rheumatoid-appearances-in-the-hand
#11
Ting Zhang, Weihong Xu, Lu Ye, Jing Xue, Huaxiang Wu
No abstract text is available yet for this article.
December 21, 2016: Rheumatology
https://www.readbyqxmd.com/read/27994572/examining-subcortical-infarcts-in-the-era-of-acute-multimodality-ct-imaging
#12
Mindy Y Q Tan, Shaloo Singhal, Henry Ma, Ronil V Chandra, Jamie Cheong, Benjamin B Clissold, John Ly, Velandai Srikanth, Thanh G Phan
BACKGROUND: Lacunar infarct has been characterized as small subcortical infarct. It is postulated to occur from "in situ microatheroma or lipohyalinosis" in small vessel or lacunar mechanism. Based on this idea, such infarcts by lacunar mechanism should not be associated with large area of perfusion deficits that extend beyond the subcortical region to the cortical region. By contrast, selected small subcortical infarcts, as defined by MR imaging in the subacute and chronic stage, may initially have large perfusion deficit or related large vessel occlusions...
2016: Frontiers in Neurology
https://www.readbyqxmd.com/read/27992392/animal-models-for-central-poststroke-pain-a-critical-comprehensive-review
#13
Philippe De Vloo, Bart Morlion, Johannes van Loon, Bart Nuttin
Central poststroke pain (CPSP) is a severe type of neuropathic pain that can develop after stroke and is difficult to treat. Research into its underlying mechanisms and treatment options could benefit from a valid CPSP animal model. Nine different CPSP animal models have been published, but there are relatively few reports on successful reproductions of these models and so far only little advances in the understanding or the management of CPSP have been made relying on these models. In general, the construct validity (similarity in underlying mechanisms) of these CPSP animal models is relatively high, although this cannot be evaluated into depth because of lack of understanding the mechanisms through which thalamic stroke can lead to CPSP...
January 2017: Pain
https://www.readbyqxmd.com/read/27960164/clinical-stroke-syndromes
#14
Jong S Kim, Louis R Caplan
The main mechanism of stroke in patients who have extracranial atherosclerosis is artery to artery embolism, occasionally associated with hemodynamic disturbances. Although these mechanisms are also important in patients with intracranial atherosclerosis, branch occlusion and in-situ thrombotic occlusion play a relatively more important role in these patients. Accordingly, clinical stroke syndromes differ between extracranial atherosclerosis and intracranial atherosclerosis. In anterior circulation, middle cerebral artery atherosclerosis frequently produces subcortical infarction by way of branch occlusion...
2016: Frontiers of Neurology and Neuroscience
https://www.readbyqxmd.com/read/27930506/change-of-ascending-reticular-activating-system-with-recovery-from-vegetative-state-to-minimally-conscious-state-in-a-stroke-patient
#15
Sung Ho Jang, Chul Hoon Chang, Young Jin Jung, You Sung Seo
RATIONALE: We report on a stroke patient who showed change of the ascending reticular activating system (ARAS) concurrent with recovery from a vegetative state (VS) to a minimally conscious state (MCS), which was demonstrated on diffusion tensor tractography (DTT). PATIENT CONCERNS: A 59-year-old male patient underwent CT-guided stereotactic drainage 3 times for management of intracerebral hemorrhage and intraventricular hemorrhage. DIAGNOSIS: After 4 months from onset, when starting rehabilitation, the patient showed impaired consciousness, with a Glasgow Coma Scale (GCS) score of 6 and a Coma Recovery Scale-Revised score of 2...
December 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27895449/cadasil-presenting-with-spontaneous-intracerebral-hemorrhage-report-of-a-case-and-description-of-the-first-family-in-northern-greece
#16
I Koutroulou, T Karapanayiotides, N Grigoriadis, D Karacostas
INTRODUCTION: CADASIL (cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy), the most common inherited cause of stroke and dementia in adults, has been described in six Greek families. Common presenting manifestations include migraine with aura, brain ischemia, mood disorders and cognitive decline. Spontaneous intracerebral hemorrhage (SICH) rarely occurs in CADASIL and only exceptionally as the first clinical manifestation. CASE DESCRIPTION: We have previously reported the sixth Greek family with CADASIL and in particular, two brothers in whom the genetic testing documented a classic mutation of the NOTCH3 gene (Arg169Cys)...
January 2016: Hippokratia
https://www.readbyqxmd.com/read/27801766/cessation-of-smoking-and-alcohol-addiction-following-thalamic-hemorrhage
#17
Fatima Najeeb, Brian Silver, Muhib Khan
INTRODUCTION: We describe a case of thalamic intracerebral hemorrhage leading to cessation of smoking. CASE REPORT: A 53-year-old female presented to the emergency department with right-sided weakness and dysarthria. Initial systolic blood pressure was 220 mm Hg. Computed tomography scan showed a left thalamic hemorrhage with associated edema and hemorrhage extending into the left lateral and third ventricle. She recovered uneventfully and was discharged to inpatient rehabilitation and eventually transitioned home...
November 2016: Neurologist
https://www.readbyqxmd.com/read/27798270/magnetic-resonance-imaging-of-local-and-remote-vascular-remodelling-after-experimental-stroke
#18
Pavel Yanev, Peter R Seevinck, Umesh S Rudrapatna, Mark Jrj Bouts, Annette van der Toorn, Karen Gertz, Golo Kronenberg, Matthias Endres, Geralda A van Tilborg, Rick M Dijkhuizen
The pattern of vascular remodelling in relation to recovery after stroke remains largely unclear. We used steady-state contrast-enhanced magnetic resonance imaging to assess the development of cerebral blood volume and microvascular density in perilesional and exofocal areas from (sub)acutely to chronically after transient stroke in rats. Microvascular density was verified histologically after infusion with Evans Blue dye. At day 1, microvascular cerebral blood volume and microvascular density were reduced in and around the ischemic lesion (intralesional borderzone: microvascular cerebral blood volume = 72 ± 8%; microvascular density = 76 ± 8%) (P < 0...
October 19, 2016: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/27777349/teaching-neuroimages-stroke-mimicking-thalamotomy-cessation-of-tremor-following-ventrolateral-thalamic-ischemia
#19
Andreas Horn, Laura Kipp, Antonio Meola, Andrea A Kühn, Christoph Leithner
No abstract text is available yet for this article.
October 25, 2016: Neurology
https://www.readbyqxmd.com/read/27758775/acute-ischemic-stroke-infarct-topology-association-with-lesion-volume-and-severity-of-symptoms-at-admission-and-discharge
#20
S Payabvash, S Taleb, J C Benson, A M McKinney
BACKGROUND AND PURPOSE: Acute stroke presentation and outcome depend on both ischemic infarct volume and location. We aimed to determine the association between acute ischemic infarct topology and lesion volume and stroke severity at presentation and discharge. MATERIALS AND METHODS: Patients with acute ischemic stroke who underwent MR imaging within 24 hours of symptom onset or last seen well were included. Infarcts were segmented and coregistered on the Montreal Neurological Institute-152 brain map...
October 6, 2016: AJNR. American Journal of Neuroradiology
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