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Keywords ischemic infarct left occipita...

ischemic infarct left occipital area

https://read.qxmd.com/read/21675454/reversible-cerebral-vasoconstriction-syndrome-with-increased-intracranial-pressure-probably-related-to-altitude-changes-and-windy-winter-travelling
#21
JOURNAL ARTICLE
Chaitawat Tienviboon, Sompone Punyagupta, Anon Pongtarakulpanit, Surawut Prichanond
Reversible cerebral vasoconstriction syndrome (RCVS) has reversible multifocal narrowing of the cerebral arteries. Respiratory alkalosis in high altitude studies cause impairment of the central nervous system, presumably by cerebral vasoconstriction. A 54 year-old woman presented with a 1-week of throbbing headache around her forehead while travelling in moderately high altitude, during a windy winter. Sudden severe headache had progressed and developed bilateral lower visual fields defect along with mild weakness of her right leg on the next day...
May 2011: Journal of the Medical Association of Thailand
https://read.qxmd.com/read/21559155/multiple-burr-hole-surgery-as-a-treatment-modality-for-pediatric-moyamoya-disease
#22
JOURNAL ARTICLE
Ravindranath Kapu, Nigel Peter Symss, Goutham Cugati, Anil Pande, Chakravarthy M Vasudevan, Ravi Ramamurthi
OBJECTIVE: To re-emphasize that indirect revascularization surgery alone, where multiple burr holes and arachnoid openings are made over both cerebral hemispheres, is beneficial in the treatment of moyamoya disease (MMD) in children. CLINICAL PRESENTATION: We report a 10-year-old boy who presented with complaints of episodic headache for the last 5 years. At the peak of his headache he had visual disturbances and acute onset weakness of left-sided limbs, recovering within a few minutes...
July 2010: Journal of Pediatric Neurosciences
https://read.qxmd.com/read/21458968/-infratentorial-ischemic-stroke-in-children-three-case-reports
#23
JOURNAL ARTICLE
M Ouattara-Doumbia, A-G Le Moing, E Bourel-Ponchel, A Delignières, J Schauvliege, A de Broca, B Chabrol, P Berquin
Ischemic stroke is rare in children, most of which occur in the supratentorial brain, and infratentorial infarcts are very rare. Some clinical manifestations may be similar but others such as ataxia and cranial nerve palsy are more specific. Vertebral artery dissection is the most frequent cause of stroke in the vertebrobasilar territory, but the cause most often remains unknown in children. We report three cases of infratentorial stroke in children. The first observation concerns a 4-year-old boy brought to medical attention because left hemicorporal motor deficit associated with ataxia following a minor cranial traumatism...
May 2011: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://read.qxmd.com/read/21111717/long-term-repeated-measurements-of-mouse-cortical-microflow-at-the-same-region-of-interest-with-high-spatial-resolution
#24
JOURNAL ARTICLE
Yutaka Tomita, Elisabeth Pinard, Alexy Tran-Dinh, Istvan Schiszler, Nathalie Kubis, Minoru Tomita, Norihiro Suzuki, Jacques Seylaz
A method for long-term, repeated, semi-quantitative measurements of cerebral microflow at the same region of interest (ROI) with high spatial resolution was developed and applied to mice subjected to focal arterial occlusion. A closed cranial window was chronically implanted over the left parieto-occipital cortex. The anesthetized mouse was placed several times, e.g., weekly, under a dynamic confocal microscope, and Rhodamine B-isothiocyanate-dextran was each time intravenously injected as a bolus, while microflow images were video recorded...
February 4, 2011: Brain Research
https://read.qxmd.com/read/18782705/transient-bilateral-cortical-visual-loss-after-coronary-artery-bypass-grafting-in-a-normotensive-risk-free-patient
#25
JOURNAL ARTICLE
Jamshid Bagheri, Mohammad-Hossein Mandegar, Mahmood-Reza Sarzaeem, Sam Chitsaz
BACKGROUND: Postoperative blindness has been mentioned as a rare complication of heart surgery. The majority of reported cases are caused by retinal artery occlusion or ischemic optic neuropathy. We report a case of transient visual loss due to cortical ischemia after coronary artery bypass grafting (CABG). CASE REPORT: A 52-year-old nondiabetic man developed complete bilateral visual loss immediately after CABG. He had been normotensive throughout the operation...
2008: Heart Surgery Forum
https://read.qxmd.com/read/17697623/-early-diagnostic-significance-and-dynamic-pattern-of-dwi-compared-with-conventional-mri-in-newborns-with-neonatal-cerebral-infarction
#26
JOURNAL ARTICLE
Jian-hua Fu, Jian Mao, Xin-dong Xue, Kai You
OBJECTIVE: To evaluate the early diagnostic significance of diffusion weighted imaging (DWI) compared with conventional magnetic resonance imaging (MRI) and to find the dynamic pattern of DWI and conventional MRI in newborn infants with neonatal cerebral infarction (NCI). METHODS: The imaging studies and clinical records of six newborn infants with NCI admitted to our ward between April 2004 and October 2005 were reviewed. All examinations were performed on a 3...
May 2007: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
https://read.qxmd.com/read/16119837/-prolonged-headache-six-weeks-before-ischemic-symptoms-due-to-vertebral-artery-dissection-a-case-report
#27
JOURNAL ARTICLE
Masahiro Oomura, Takemori Yamawaki, Tadashi Terai, Koji Shigeno
A 43-year-old woman presented with weakness in her left arm and leg. She had noticed headache persisting for 2 weeks in her right occipital area 6 weeks prior to the onset of the weakness. Cranial diffusion-weighted MR image demonstrated acute infarction in the right medial part of medulla oblongata. Cerebral angiography revealed pearl and string sign in the right intracranial vertebral artery. Magnetic resonance T1-weighted image obtained when the patient complained of left-sided weakness showed a high intensity area in right vertebral artery corresponding to intramural hematoma...
July 2005: Rinshō Shinkeigaku, Clinical Neurology
https://read.qxmd.com/read/15758950/long-term-in-vivo-investigation-of-mouse-cerebral-microcirculation-by-fluorescence-confocal-microscopy-in-the-area-of-focal-ischemia
#28
JOURNAL ARTICLE
Yutaka Tomita, Nathalie Kubis, Yolande Calando, Alexy Tran Dinh, Philippe Méric, Jacques Seylaz, Elisabeth Pinard
This study was designed to assess that mouse pial and cortical microcirculation can be monitored in the long term directly in the area of focal ischemia, using in vivo fluorescence microscopy. A closed cranial window was placed over the left parieto-occipital cortex of C57BL/6J mice. Local microcirculation was recorded in real time through the window using laser-scanning confocal fluorescence microscopy after intravenous injection of fluorescent erythrocytes and dextran. The basal velocity of erythrocytes through intraparenchymal capillaries was 0...
July 2005: Journal of Cerebral Blood Flow and Metabolism
https://read.qxmd.com/read/15590538/occipital-lobe-infarction-following-cardiac-ablation
#29
JOURNAL ARTICLE
Rukhsana G Mirza, Jose Biller, Walter M Jay
A 60-year-old man presented with the chief complaint of seeing a blurred area just up and to the left of the center of his vision. The patient noted this visual field defect immediately after he awoke from a cardiac electrophysiologic study with a catheter ablation procedure. On neuro-ophthalmologic testing, a small scotoma was present superior and left of fixation in both eyes. MRI showed a small irregular area of abnormal signal in the right occipital lobe consistent with an ischemic lesion. To the best of our knowledge, this represents the first case report of a homonymous visual field defect secondary to an occipital lobe infarction following a cardiac catheter ablation procedure...
September 2004: Seminars in Ophthalmology
https://read.qxmd.com/read/10967650/-a-case-of-non-convulsive-status-epilepticus-worsened-wernicke-s-aphasia-reversely
#30
REVIEW
Y Ueki, K Terada, A Otsuka, M Kanda, I Akiguchi
A 62-year-old right-handed woman had presented progressive speech impediment over 4 months. She was alert without any convulsions or involuntary movements. Neurological examination showed Wernicke's aphasia, constructional apraxia. Her magnetic resonance imaging (MRI) showed an old cerebral infarction in the left parieto-occipital area, in addition to ischemic changes in the bilateral deep white matter. Electroencephalography (EEG) revealed periodic lateralized epileptiform discharges (PLEDs) predominant in the posterior left hemisphere...
April 2000: Rinshō Shinkeigaku, Clinical Neurology
https://read.qxmd.com/read/10809980/cutaneous-manifestations-of-marantic-endocarditis
#31
JOURNAL ARTICLE
A Kimyai-Asadi, A Usman, F Milani
A 70-year-old patient with a history of hypertension and hypercholesterolemia was referred for evaluation of necrotic toes. The patient had a history of several cerebrovascular accidents during the previous month. Initially, she developed sudden-onset left upper extremity weakness which, over the ensuing 4 days, progressed to complete left-sided weakness. This was followed by the development of acute dysarthria. A transesophageal echocardiogram revealed moderate left ventricular hypertrophy, several vegetations on her tri-leaflet aortic valve associated with moderate aortic regurgitation, and a large right atrial thrombus with a mobile component...
April 2000: International Journal of Dermatology
https://read.qxmd.com/read/9394602/-moyamoya-disease-presenting-initially-with-mental-disturbance
#32
JOURNAL ARTICLE
M Hosoya
Moyamoya disease usually presents itself in children as recurrent episodes of transient cerebral ischemia, such as acute motor and sensory deficits, speech disturbance, headache and seizures. Its initial symptoms rarely include mental disturbance. We experienced a nine-year-old girl with Moyamoya disease who showed choreic involuntary movements of the left upper and lower limbs. In spite of mental disturbance which began around the age of four, she had never visited hospital. CT and MRI detected multiple ischemic lesions in the frontal, parietal and occipital areas...
November 1997: No to Hattatsu. Brain and Development
https://read.qxmd.com/read/7781232/-an-autopsy-case-of-intravascular-malignant-lymphomatosis-with-intracranial-lymphomatous-mass-lesions
#33
JOURNAL ARTICLE
Y Takeuchi, Y Hashizume, M Hoshiyama, Y Hirose, A Takahashi
A 50-year-old man was admitted to our hospital, because of weakness in his right leg. On admission, he had generalized hyperreflexia and positive Babinski signs bilaterally. After admission, weakness in his left leg and confusion developed. A cerebrospinal fluid examination revealed increases in cell counts and protein but was negative for malignant cells. Blood chemistry was normal except for elevated LDH. A bone marrow biopsy yielded lymphoma cells. Successive T2-weighted cranial MRI showed a progressively expanding high signal area in the right parieto-occipital lobe...
February 1995: Rinshō Shinkeigaku, Clinical Neurology
https://read.qxmd.com/read/7481377/-isolated-angiitis-of-the-central-nervous-system-clinical-and-neuropathological-study-of-2-cases
#34
JOURNAL ARTICLE
A Pou Serradell, E Masó, J Roquer, C Oliveras, J Herraiz, F Alameda
Isolated angiitis of the central nervous system (IAC) is an idiopatic, recurrent vasculitis confined to the CNS involving small blood vessels. We describe the clinical, angiographic, and neuropathological data in two patients with IAC and delineate the main clinical and neuropathological features in both cases as well as the importance of a complete autopsy for discovering subclinical vasculitic lesions outside the CNS. Patient 1 concerned a 40 year-old-man that evolved for the last three years, initially with focal seizures, headache, and neurological focal deficits, later on the left sided hemihyposthesia and preferentially left parieto-occipital dysfunctions...
April 1995: Revue Neurologique
https://read.qxmd.com/read/6966087/migrainous-cerebral-infarction-a-tomographic-study-of-cerebral-blood-flow-and-oxygen-extraction-fraction-with-the-oxygen-15-inhalation-technique
#35
JOURNAL ARTICLE
M G Bousser, J C Baron, M T Iba-Zizen, D Comar, E Cabanis, P Castaigne
A patient with migraine who had a permanent visual field defect was studied by angiography and CT scan. He also had a tomographic study of cerebral blood flow (CBF) and oxygen extraction fraction (EO2) using the non-invasive continuous oxygen-15 (15O) inhalation technique. Angiography was normal. CT scan revealed an area of decreased density with contrast enhancement suggestive of a recent infarct in the left occipital lobe. The 15O inhalation technique showed a decrease in CBF and EO2, typical of recent infarcts, in the corresponding area, an increase in CBF with normal EO2 in the left temporal lobe, and a decrease in CBF with increased EO2 in the right occipital cortex...
March 1980: Stroke; a Journal of Cerebral Circulation
https://read.qxmd.com/read/6595871/-noninvasive-measurement-of-cerebrovascular-circulation-with-the-scintillation-camera-a-neurologic-nuclear-medicine-study
#36
JOURNAL ARTICLE
I Podreka
Repeated CBF-measurements can be performed after inhalation or intravenous injection of 133Xe. After the development of a bicompartmental model by Obrist et al. in 1975 atraumatic CBF-measurements became widely used but there were still some difficulties concerning the sensitivity of different flow-indices towards CBF changes in normals under test conditions or ischemia in stroke patients. Due to the "slippage phenomenon" mostly noncompartmental flow-indices are used for the detection of ischemic brain areas...
1984: Wiener Klinische Wochenschrift. Supplementum
https://read.qxmd.com/read/2510230/-focal-motor-crises-a-transitory-ischemic-attack
#37
REVIEW
M Demiati, A Rosa, J P Mizon
A 65-year-old man with hypertension and coronary artery disease presented with a history of 6 tonic fits of right upper limb and 2 clonic fits of the right side of the face with language suspension, each lasting for only 2 to 3 minutes. CT with contrast showed a right occipital low density area, a probable old infarct, and left carotid angiography showed an ulcerated cervical stenosis. Based on reported experimental data, it is suggested that these paroxysmal manifestations are related to transient ischemic attacks, are of epileptic nature and due to an ischemic mechanism...
1989: Revue Neurologique
https://read.qxmd.com/read/2294953/-a-case-of-progeria-syndrome-with-cerebral-infarction
#38
JOURNAL ARTICLE
Y Naganuma, T Konishi, K Hongou, M Murakami, M Yamatani, T Okada
Cerebrovascular involvement is rare in progeria syndrome (Hutchinson-Gilford syndrome). A patient with progeria syndrome, who developed cerebral infarction, was reported. At 7 years of age, she suffered from right hemiplegia and transient ischemic attacks. X-ray CT showed multiple low density lesions in left frontal and parieto-occipital areas, which were enhanced with a contrast medium. Cerebral angiography demonstrated complete occlusion of left carotid artery and narrowing of vertebral artery. Brain imaging using 123I-N-isopropyl-p-iodoamphetamine (123I-IMP SPECT), which expressed regional cerebral blood flow, showed extensive perfusion defect over the left cerebral hemisphere in early scans, and redistribution phenomena in late scans...
January 1990: No to Hattatsu. Brain and Development
https://read.qxmd.com/read/1601103/ischemic-penumbra-in-a-model-of-reversible-middle-cerebral-artery-occlusion-in-the-rat
#39
JOURNAL ARTICLE
H Memezawa, H Minamisawa, M L Smith, B K Siesjö
It has become increasingly clear that a stroke lesion usually consists of a densely ischemic focus and of perifocal areas with better upheld flow rates. At least in rats and cats, some of these perifocal ("penumbral") areas subsequently become recruited in the infarction process. The mechanisms may involve an aberrant cellular calcium metabolism and enhanced production of free radicals. In general, though, the metabolic perturbation in the penumbra requires better characterization. The objective of this article was to define flow distribution in a rat model of reversible middle cerebral artery (MCA) occlusion, so as to allow delineation of the metabolic aberrations responsible for the subsequent infarction...
1992: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://read.qxmd.com/read/1528372/-full-symptom-ischemic-stroke-in-the-area-of-the-left-posterior-cerebral-artery
#40
JOURNAL ARTICLE
J Baumritter, M Skrobisz
A case of stroke with amnesia, hemianopsia, alexia without agraphia, colour anomia is reported. CT of the brain demonstrated presence of an ischaemic focus in the temporo-parieto-occipital area. Hemianopsia and colour anomia persisted longer than other symptoms.
January 1992: Neurologia i Neurochirurgia Polska
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