Hyperperfusion
Mostrando 1-12 de 19 artigos, teses e dissertações.
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1. Changes in diffusion and perfusion weighted magnetic resonance imaging in carotid angioplasty with stenting under cerebral protection by filters / Alterações de difusão e perfusão cerebral por RM em angioplastia carotídea com "stent" sob proteção cerebral por filtros
INTRODUÇÃO: A angioplastia carotídea com stent (ACS) sob proteção cerebral é opção terapêutica em pacientes com estenose carotídea. Existe o risco de embolia apesar da utilização do filtro e as modificações na perfusão cerebral após tratamento da estenose carotídea não são claras. O propósito deste estudo é avaliar, após ACS sob proteç
Publicado em: 2009
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2. Brain SPECT imaging in Sydenham's chorea
The objective of the present study was to determine whether brain single-photon emission computed tomography (SPECT) imaging is capable of detecting perfusional abnormalities. Ten Sydenham's chorea (SC) patients, eight females and two males, 8 to 25 years of age (mean 13.4), with a clinical diagnosis of SC were submitted to brain SPECT imaging. We used HMPAO
Brazilian Journal of Medical and Biological Research. Publicado em: 2002-04
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3. Pontine hyperperfusion in sporadic hyperekplexia
BMJ Group.
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4. Post-carotid endarterectomy cerebral hyperperfusion syndrome
The Royal Society of Medicine.
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5. Reversible hyperperfusion of the right medial temporal lobe in transient global amnesia.
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6. Ictal/postictal SPECT in the pre-surgical localisation of complex partial seizures.
Single photon emission computed tomography (SPECT) used in conjunction with HM-PAO (Ceretec-Amersham International) was used to image regional cerebral blood flow (rCBF) in 28 patients with medically intractable complex partial seizures during or soon after a seizure, and interictally. Changes from interictal rCBF were seen in 26/28 (93%) patients. The main
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7. Ictal cerebral perfusion related to EEG in drug resistant focal epilepsy of childhood.
OBJECTIVES: To evaluate the EEG changes during seizures in children with drug resistant focal epilepsy who demonstrate hypoperfusion at the "seizure focus" interictally, but no perfusion change during the seizure. METHODS: Ictal EEG findings of six children with focal epilepsy who demonstrated hypoperfusion on rCBF SPECT after an interictal injection of (99)
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8. Involvement of nitric oxide system in experimental muscle crush injury.
Muscle crush injury is often complicated by hemodynamic shock, electrolyte disorders, and myoglobinuric renal failure. In this study, we examined the involvement of the nitric oxide (NO) system in the development of muscle damage in an experimental model of crush injury induced by exertion of standardized mechanical pressure on tibialis muscle of rat. The in
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9. Diffuse cerebrospinal gliomatosis presenting as motor neuron disease for two years.
A patient with symptoms and signs of motor neuron disease for 2 years finally developed sensory disturbances and increased intracranial pressure. MRI and CT showed enlargement of the right side of the cerebellum, the brainstem and parts of the cerebral hemisphere with focal hyperperfusion demonstrated by SPECT. Necropsy revealed a diffuse cerebrospinal gliom
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10. Dietary protein restriction in established renal injury in the rat. Selective role of glomerular capillary pressure in progressive glomerular dysfunction.
Dietary protein restriction imposed before renal injury is established in the remnant kidney model in the rat reduces glomerular hypertension and hyperperfusion and renal injury. We demonstrate that dietary protein restriction (6% vs. 20%) imposed on a background of established renal injury in the remnant model leads to a greater preservation of renal functi
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11. Inhibition of thromboxane synthesis ameliorates the progressive kidney disease of rats with subtotal renal ablation.
Ablation of greater than 70% of renal mass in the rat results in hypertension, proteinuria, and glomerular sclerosis of the remnant kidney. Rats with a remnant kidney have increased excretion of thromboxane in the urine when compared with normal rats. Chronic oral administration of OKY 1581, an inhibitor of thromboxane synthesis, in rats with a remnant kidne
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12. Chronic glucocorticoid therapy amplifies glomerular injury in rats with renal ablation.
Functional and/or structural measurements were performed in eight groups of Munich-Wistar rats after five-sixths nephrectomy. Groups 1 and 5 received no therapy. Groups 2 and 6 received daily doses of methylprednisolone (MP). Groups 3 and 7 received MP plus the angiotensin I converting enzyme inhibitor (CEI), benzazepril. Groups 4 and 8 received CEI alone. G