Results 11 to 20 of about 29,744 (154)
Cerebrovascular Resistance: The Basis of Cerebrovascular Reactivity [PDF]
Frontiers in Neuroscience, 2018 The cerebral vascular network regulates blood flow distribution by adjusting vessel diameters, and consequently resistance to flow, in response to metabolic demands (neurovascular coupling) and changes in perfusion pressure (autoregulation).
Julien Poublanc, , Olivia Sobczyk
exaly +5 more sources
Measuring Cerebrovascular Reactivity: Sixteen Avoidable Pitfalls [PDF]
Frontiers in Physiology, 2021 An increase in arterial PCO2 is the most common stressor used to increase cerebral blood flow for assessing cerebral vascular reactivity (CVR). That CO2 is readily obtained, inexpensive, easy to administer, and safe to inhale belies the difficulties in ...
Jorn Fierstra, Julien Poublanc
exaly +6 more sources
Evaluation of cerebrovascular reactivity using transcranial Doppler in patients with influenza. [PDF]
PLoS ONEInfluenza is primarily a respiratory disease but can cause a broad spectrum of complications, including those affecting the cerebrovascular system. The aim of this study was to evaluate cerebrovascular reactivity in patients during and after influenza ...
Ana Orsolic Beslic +4 more
doaj +2 more sources
Neurotrauma Reports, 2020 The impact of vasopressor and sedative drugs on cerebrovascular reactivity in traumatic brain injury (TBI) remains unclear. The aim of this study was to evaluate the impact of changes of doses of commonly administered sedation (i.e., propofol, fentanyl ...
Joshua Dian +2 more
exaly +3 more sources
Cerebrovascular Pressure Reactivity in Children with TBI
Pediatric Neurology Briefs, 2015 Investigators from University of Melbourne, Australia, studied Pressure-Reactivity Index (PRx) and optimal Cerebral Perfusion Pressure (CPP) in 36 children aged between 6 months and 16 years treated for traumatic brain injury (TBI) at the Royal Children ...
Laurence Ducharme-Crevier
doaj +5 more sources
Abnormal Cerebrovascular Reactivity in Patients with Parkinson’s Disease [PDF]
Parkinson's Disease, 2015 Background. Orthostatic hypotension (OH) is an important nonmotor manifestation of Parkinson’s disease (PD). Changes in cerebrovascular reactivity may contribute to this manifestation and can be monitored using transcranial Doppler. Objective.
Carlos Henrique Ferreira Camargo +8 more
doaj +3 more sources
Incomplete circle of Willis and cerebrovascular reactivity in asymptomatic patients before and after carotid endarterectomy [PDF]
Srpski Arhiv za Celokupno Lekarstvo, 2021 Introduction/Objective. Circle of Willis (CoW) provides the most significant collateral flow in the presence of significant stenosis or occlusion of internal carotid artery.
Manojlović Vladimir +3 more
doaj +1 more source
Abnormal Cerebrovascular Reactivity in Parkinson’s Disease [PDF]
Parkinson's Disease, 2015 We read with great interest the recent original article by Camargo et al. [1] titled “Abnormal Cerebrovascular Reactivity in Patients with Parkinson's Disease.” Authors observed that patients with Parkinson's disease (PD) have impaired cerebrovascular reactivity (CVR) as compared to those without orthostatic hypotension (OH) and to the control subjects.
Kiran Prakash
doaj +3 more sources
Neurotrauma Reports, 2021 Age and biological sex are two potential important modifiers of cerebrovascular reactivity post-traumatic brain injury (TBI) requiring close evaluation for potential subgroup responses.
Carleen Batson +6 more
doaj +1 more source
Cerebrovascular Reactivity and Subcortical Infarctions [PDF]
Archives of Neurology, 2001 To investigate the association between different kinds of ischemic lesions and cerebrovascular reactivity (CR) and to evaluate their relationships with the major risk factors for stroke.We evaluated CR using the breath-holding index technique during bilateral transcranial Doppler monitoring of flow velocity in the middle cerebral arteries of 41 ...
Cupini, L +4 more
openaire +5 more sources