Stimulated Cerebral Blood Flow
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Stimulated Cerebral Blood Flow
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Author : Peter Schmiedek
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Stimulated Cerebral Blood Flow written by Peter Schmiedek and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Medical categories.
Das vorliegende Buch enth{lt die Beitr{ge eines internatio- nalen Symposiumszum Thema "Stimulierte Hirndurchblutung". Vorgestellt werden zun{chst neue Erkenntnisse zur Regulation der Hinrdurchblutung. Im 2. Abschnitt kommen verschiedene Methoden zur Messung der Hirndurchblutung zur Sprache, die sowohl unter experimentellen als auch unter klinischen Be- dingungengetestet wurden. Es folgt ein Abschnitt, der ver- schiedene M|glichkeiten zur Stimulation der Hirndurchblutung aufzeigt. Im letzten Abschnitt wird aufdie Bedeutung der stimulierten Hirndurchblutungsmessung zur Bestimmung der ce- rebrovascul{ren Reservekapazit{ten hingewiesen. Dieser Para- meter hat nach den vorliegenden Untersuchungen klinisch- praktische Bedeutung, beispielsweise f}r die Indikations- stellung bei cerebrovascul{ren Eingriffen zur Isch{mie-Pro- phylaxe.
Stimulated Cerebral Blood Flow
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Author : Peter Schmiedek
language : en
Publisher: Springer
Release Date : 1992-03-20
Stimulated Cerebral Blood Flow written by Peter Schmiedek and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992-03-20 with Medical categories.
Proceedings from a meeting on stimulated cerebral blood flow.
Regional Cerebral Blood Flow During Stimulation Of The Seventh Cranial Nerve
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Author : Virgilio Dizon Salanga
language : en
Publisher:
Release Date : 1972
Regional Cerebral Blood Flow During Stimulation Of The Seventh Cranial Nerve written by Virgilio Dizon Salanga and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1972 with Blood flow categories.
The Cerebral Circulation
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Author : Marilyn J. Cipolla
language : en
Publisher: Biota Publishing
Release Date : 2016-07-28
The Cerebral Circulation written by Marilyn J. Cipolla and has been published by Biota Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-07-28 with Medical categories.
This e-book will review special features of the cerebral circulation and how they contribute to the physiology of the brain. It describes structural and functional properties of the cerebral circulation that are unique to the brain, an organ with high metabolic demands and the need for tight water and ion homeostasis. Autoregulation is pronounced in the brain, with myogenic, metabolic and neurogenic mechanisms contributing to maintain relatively constant blood flow during both increases and decreases in pressure. In addition, unlike peripheral organs where the majority of vascular resistance resides in small arteries and arterioles, large extracranial and intracranial arteries contribute significantly to vascular resistance in the brain. The prominent role of large arteries in cerebrovascular resistance helps maintain blood flow and protect downstream vessels during changes in perfusion pressure. The cerebral endothelium is also unique in that its barrier properties are in some way more like epithelium than endothelium in the periphery. The cerebral endothelium, known as the blood-brain barrier, has specialized tight junctions that do not allow ions to pass freely and has very low hydraulic conductivity and transcellular transport. This special configuration modifies Starling's forces in the brain microcirculation such that ions retained in the vascular lumen oppose water movement due to hydrostatic pressure. Tight water regulation is necessary in the brain because it has limited capacity for expansion within the skull. Increased intracranial pressure due to vasogenic edema can cause severe neurologic complications and death.
Brain S Vessels Diameter And Regional Cerebral Blood Flow Following Stimulation Of The Spheno Palatine Ganglion
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Author : Haviv Levi
language : en
Publisher:
Release Date : 2010
Brain S Vessels Diameter And Regional Cerebral Blood Flow Following Stimulation Of The Spheno Palatine Ganglion written by Haviv Levi and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with Brain categories.
Regional Cerebral Blood Flow During Verbal Auditory Stimulation
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Author : Norma Alice Cooke
language : en
Publisher:
Release Date : 1978
Regional Cerebral Blood Flow During Verbal Auditory Stimulation written by Norma Alice Cooke and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1978 with categories.
Dynamic Changes In Heart Rate And Cerebral Blood Flow During Acute Vagal Nerve Stimulation
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Author : Peter Hillebrand (M.S.)
language : en
Publisher:
Release Date : 2019
Dynamic Changes In Heart Rate And Cerebral Blood Flow During Acute Vagal Nerve Stimulation written by Peter Hillebrand (M.S.) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with Cerebral circulation categories.
Vagal Nerve Stimulation (VNS) has been shown to be a promising therapeutic technique in treating many neurological diseases, including epilepsy, stroke, traumatic brain injury, and migraine headache. The mechanisms by which VNS acts, however, are not fully understood but may involve changes in cerebral blood flow. The vagus nerve plays a significant role in the regulation of heart rate and cerebral blood flow that are altered during VNS. Here, the effects of acute vagal nerve stimulation using varying stimulation parameters on both heart rate and cerebral blood flow were examined. Laser Speckle Contrast Analysis (LASCA) was used to analyze the cerebral blood flow of male Long-Evans rats. In the first experiment, results showed two distinct patterns of responses to 0.8mA of stimulation whereby animals either experienced a mild or severe decrease in heart rate. Further, animals that displayed mild heart rate decreases showed an increase in cerebral blood flow that persisted beyond VNS. Animals that displayed severe decreases showed a transient decrease in cerebral blood flow followed by an increase that was greater than that observed in mild animals but progressively decreased after VNS. The results suggest two distinct patterns of changes in both heart rate and blood flow that may be related to the intensity of VNS. To investigate the effects of lower levels of stimulation, an additional group of animals were stimulated at 0.4mA. The results showed moderate changes in heart rate but no significant changes in cerebral blood flow in these animals. The results demonstrate that VNS alters both heart rate and cerebral blood flow and that these effects are dependent on current intensity.
A Comparative Study Of The Effect Of Cervical Sympathetic Stimulation On Cerebral Blood Flow
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Author :
language : en
Publisher:
Release Date : 1964
A Comparative Study Of The Effect Of Cervical Sympathetic Stimulation On Cerebral Blood Flow written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1964 with categories.
Can Cerebral Blood Flow Be Classically Conditioned
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Author : Theodore Andrew Zabel
language : en
Publisher:
Release Date : 2000
Can Cerebral Blood Flow Be Classically Conditioned written by Theodore Andrew Zabel and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Cerebral circulation categories.
A Comparative Study Of The Effect Of Cervical Sympathetic Stimulation On Cerebral Blood Flow
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Author : John Krog
language : no
Publisher:
Release Date : 1964
A Comparative Study Of The Effect Of Cervical Sympathetic Stimulation On Cerebral Blood Flow written by John Krog and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1964 with categories.