Impact of transient hypotension on regional cerebral blood flow in humans
We examined the impact of progressive hypotension with and without hypocapnia on
regional extracranial cerebral blood flow (CBF) and intracranial velocities. Participants …
regional extracranial cerebral blood flow (CBF) and intracranial velocities. Participants …
Effect of acute hypoxia on regional cerebral blood flow: effect of sympathetic nerve activity
NCS Lewis, L Messinger… - Journal of applied …, 2014 - journals.physiology.org
We examined 1) whether global cerebral blood flow (CBF) would increase across a 6-h bout
of normobaric poikilocapnic hypoxia and be mediated by a larger increase in blood flow in …
of normobaric poikilocapnic hypoxia and be mediated by a larger increase in blood flow in …
Characterization of cerebral macro-and microvascular hemodynamics during transient hypotension
LN Shoemaker, D Milej, A Sajid… - Journal of Applied …, 2023 - journals.physiology.org
The aim of the current study was to establish the interplay between blood flow patterns
within a large cerebral artery and a downstream microvascular segment under conditions of …
within a large cerebral artery and a downstream microvascular segment under conditions of …
Cerebrovascular dynamics of autoregulation and hypoperfusion: an MRI study of CBF and changes in total and microvascular cerebral blood volume during …
G Zaharchuk, JB Mandeville, AA Bogdanov Jr… - Stroke, 1999 - Am Heart Assoc
Background and Purpose—To determine how cerebral blood flow (CBF), total and
microvascular cerebral blood volume (CBV), and blood oxygenation level–dependent …
microvascular cerebral blood volume (CBV), and blood oxygenation level–dependent …
Cerebral blood flow velocity underestimates cerebral blood flow during modest hypercapnia and hypocapnia
NS Coverdale, JS Gati, O Opalevych… - Journal of applied …, 2014 - journals.physiology.org
To establish the accuracy of transcranial Doppler ultrasound (TCD) measures of middle
cerebral artery (MCA) cerebral blood flow velocity (CBFV) as a surrogate of cerebral blood …
cerebral artery (MCA) cerebral blood flow velocity (CBFV) as a surrogate of cerebral blood …
Cerebral blood flow response to simulated hypovolemia in essential hypertension: a magnetic resonance imaging study
S Neumann, AE Burchell, JCL Rodrigues… - …, 2019 - Am Heart Assoc
Hypertension is associated with raised cerebral vascular resistance and cerebrovascular
remodeling. It is currently unclear whether the cerebral circulation can maintain cerebral …
remodeling. It is currently unclear whether the cerebral circulation can maintain cerebral …
Induced response to hypercapnia in the two-compartment total cerebral blood volume: influence on brain vascular reserve and flow efficiency
A Keyeux… - Journal of Cerebral …, 1995 - journals.sagepub.com
This study was undertaken to investigate the mechanisms of CBF increase as induced by
hypercapnia. It was achieved in anesthetized rats by determining total cerebral blood …
hypercapnia. It was achieved in anesthetized rats by determining total cerebral blood …
The role of cerebral oxygenation and regional cerebral blood flow on tolerance to central hypovolemia
VL Kay, CA Rickards - American Journal of Physiology …, 2016 - journals.physiology.org
Tolerance to central hypovolemia is highly variable, and accumulating evidence suggests
that protection of anterior cerebral blood flow (CBF) is not an underlying mechanism. We …
that protection of anterior cerebral blood flow (CBF) is not an underlying mechanism. We …
Impact of age on cerebrovascular dilation versus reactivity to hypercapnia
NS Coverdale, MB Badrov… - Journal of Cerebral …, 2017 - journals.sagepub.com
This study quantified the effect of age on cerebrovascular reactivity and cerebrovascular
conductance while accounting for differences in grey matter volume in younger (YA: n= 12; …
conductance while accounting for differences in grey matter volume in younger (YA: n= 12; …
The effect of hypercapnia on static cerebral autoregulation
Hypercapnia impairs cerebrovascular control during rapid changes in blood pressure (BP);
however, data concerning the effect of hypercapnia on steady state, nonpharmacological …
however, data concerning the effect of hypercapnia on steady state, nonpharmacological …