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Clinical Significance of Cerebral Autoregulation
2002Disturbed cerebral autoregulation is believed to be associated with an unfavourable outcome following head injury. Previously, using ICP monitoring and transcranial Doppler ultrasonography, we investigated whether cerebral response to spontaneous variations in arterial pressure (ABP) or cerebral perfusion pressure (CPP) provide reliable information on ...
Stefan K. Piechnik +3 more
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Influence of nitroprusside on cerebral pressure autoregulation
Neurosurgery, 1979The authors studied 10 cats to assess the question of abolition of cerebral autoregulation attendant on the use of nitroprusside for hypotensive anesthesia. After the establishment of stable base line parameters, a continuous infusion of sodium nitroprusside was begun in a dose sufficient to maintain a mean systemic arterial pressure of 65 mm Hg ...
Heiden Js +5 more
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Cerebrovascular and brain metabolism reviews, 1990
Autoregulation of blood flow denotes the intrinsic ability of an organ or a vascular bed to maintain a constant perfusion in the face of blood pressure changes. Alternatively, autoregulation can be defined in terms of vascular resistance changes or simply arteriolar caliber changes as blood pressure or perfusion pressure varies.
Paulson, O B +2 more
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Autoregulation of blood flow denotes the intrinsic ability of an organ or a vascular bed to maintain a constant perfusion in the face of blood pressure changes. Alternatively, autoregulation can be defined in terms of vascular resistance changes or simply arteriolar caliber changes as blood pressure or perfusion pressure varies.
Paulson, O B +2 more
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Pediatric Critical Care Medicine, 2019
Objectives: To examine cerebral autoregulation in children with complex mild traumatic brain injury. Design: Prospective observational convenience sample. Setting: PICU at a level I trauma center.
A. Lele +8 more
semanticscholar +1 more source
Objectives: To examine cerebral autoregulation in children with complex mild traumatic brain injury. Design: Prospective observational convenience sample. Setting: PICU at a level I trauma center.
A. Lele +8 more
semanticscholar +1 more source
Journal of Neurotrauma, 2019
Traumatic brain injury (TBI) contributes to morbidity in children, and boys are disproportionately represented. Cerebral blood flow (CBF) is reduced and autoregulation is impaired after TBI, contributing to poor outcome. Cerebral perfusion pressure (CPP)
Hugh Hekierski +3 more
semanticscholar +1 more source
Traumatic brain injury (TBI) contributes to morbidity in children, and boys are disproportionately represented. Cerebral blood flow (CBF) is reduced and autoregulation is impaired after TBI, contributing to poor outcome. Cerebral perfusion pressure (CPP)
Hugh Hekierski +3 more
semanticscholar +1 more source
Quantification of dynamic cerebral autoregulation: welcome to the jungle!
Clinical Autonomic Research, 2023Patrice Brassard +4 more
semanticscholar +1 more source
Cerebral Autoregulation in Normal Pregnancy and Preeclampsia
Obstetric Anesthesia Digest, 2013To test the hypothesis that preeclampsia is associated with impaired dynamic cerebral autoregulation.In a prospective cohort analysis, cerebral blood flow velocity of the middle cerebral artery (determined by transcranial Doppler), blood pressure (determined by noninvasive arterial volume clamping), and end-tidal carbon dioxide were simultaneously ...
Ronney B. Panerai +5 more
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Nonstationarity of dynamic cerebral autoregulation
Medical Engineering & Physics, 2014Dynamic cerebral autoregulation (dCA), the transient response of cerebral blood flow (CBF) to rapid changes in arterial blood pressure (BP), is usually quantified by parameters extracted from time- or frequency-domain analysis. Reproducibility studies of dCA parameters and consideration of the physiological determinants of the dynamic BP-CBF ...
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Cerebral Autoregulation in Neonates
Advances in Clinical Medicine, 2023盈欣 庄
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The Frequency-Dependent Behavior of Cerebral Autoregulation
Neurosurgery, 1990Abstract Cerebral autoregulation is a complex physiological process composed of both fast and slow components that may respond differently to different rates and patterns of blood pressure variation. To assess the temporal nature of autoregulation, transcranial Doppler velocity recordings of the middle cerebral artery obtained over ...
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