Results 11 to 20 of about 28,548 (239)

Statistical properties of cerebral near infrared and intracranial pressure-based cerebrovascular reactivity metrics in moderate and severe neural injury: a machine learning and time-series analysis

Intensive Care Medicine Experimental, 2023
Background Cerebrovascular reactivity has been identified as a key contributor to secondary injury following traumatic brain injury (TBI). Prevalent intracranial pressure (ICP) based indices of cerebrovascular reactivity are limited by their invasive ...
Alwyn Gomez, Amanjyot Singh Sainbhi, Kevin Y. Stein, Nuray Vakitbilir, Logan Froese, Frederick A. Zeiler   +5 more
doaj   +1 more source

Practical Considerations for Continuous Time-Domain Cerebrovascular Reactivity Indices in Traumatic Brain Injury: Do Scaling Errors in Parent Signals Matter?

Frontiers in Neurology, 2022
Literature pertaining to traumatic brain injury care involves the mediation and control of secondary brain injury mechanisms, chief among these is cerebral autoregulation.
Logan Froese, Alwyn Gomez, Alwyn Gomez, Amanjyot Singh Sainbhi, Trevor Slack, Frederick A. Zeiler, Frederick A. Zeiler, Frederick A. Zeiler, Frederick A. Zeiler, Frederick A. Zeiler   +9 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, DIOMEDI, MARINA, PLACIDI, FABIO, SILVESTRINI, MAURO, GIACOMINI, PIERGIORGIO   +4 more
openaire   +5 more sources

The Impact of Vasopressor and Sedative Agents on Cerebrovascular Reactivity and Compensatory Reserve in Traumatic Brain Injury: An Exploratory Analysis

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 ...
Logan Froese, Joshua Dian, Carleen Batson, Alwyn Gomez, Norah Alarifi, Bertram Unger, Frederick A. Zeiler   +6 more
doaj   +1 more source

NIRS-based cerebrovascular regulation assessment: exercise and cerebrovascular reactivity [PDF]

Neurophotonics, 2017
Alterations to cerebral blood flow (CBF) have been implicated in diverse neurological conditions. Near-infrared spectroscopy (NIRS)-measured regional cerebral tissue oxygen saturation ([Formula: see text]) provides an estimate of oxygenation of interrogated cerebral volume useful in identifying variations in oxygen supply to cerebral tissue and in ...
Stephanie, Miller, Kunal, Mitra
openaire   +2 more sources

Cerebrovascular Reactivity Following Spinal Cord Injury

Topics in Spinal Cord Injury Rehabilitation, 2022
AbstractCervical and upper-thoracic spinal cord injury (SCI) commonly results in autonomic cardiovascular impairments. These impairments can lead to alterations in blood flow, cerebral perfusion pressure and ultimately tissue perfusion, which can lead to an elevated risk of stroke and global cognitive deficits.
Alexander Mark Weber, Tom E. Nightingale, Michael Jarrett, Amanda H. X. Lee, Olivia Campbell, Matthias Walter, Samuel J.E. Lucas, Aaron Phillips, Alexander Rauscher, Andrei Krassioukov   +9 more
openaire   +2 more sources

Transcranial Doppler Based Cerebrovascular Reactivity Indices in Adult Traumatic Brain Injury: A Scoping Review of Associations With Patient Oriented Outcomes

Frontiers in Pharmacology, 2021
Background: Disruption in cerebrovascular reactivity following traumatic brain injury (TBI) is a known phenomenon that may hold prognostic value and clinical relevance.
Alwyn Gomez, Alwyn Gomez, Logan Froese, Amanjyot Singh Sainbhi, Carleen Batson, Frederick A. Zeiler, Frederick A. Zeiler, Frederick A. Zeiler, Frederick A. Zeiler, Frederick A. Zeiler   +9 more
doaj   +1 more source

Neuroimaging assessment of cerebrovascular reactivity in concussion: current concepts, methodological considerations and review of the literature

Frontiers in Neurology, 2016
Concussion is a form of traumatic brain injury (TBI) that presents with a wide spectrum of subjective symptoms and few objective clinical findings. Emerging research suggests that one of the processes that may contribute to concussion pathophysiology is ...
Michael John Ellis, Michael John Ellis, Lawrence eRyner, Lawrence eRyner, Olivia eSobczyk, Olivia eSobczyk, Jorn eFierstra, David eMikulis, David eMikulis, Joseph Arnold Fisher, Joseph Arnold Fisher, James eDuffin, James eDuffin, W. Alan C. Mutch, W. Alan C. Mutch   +14 more
doaj   +1 more source

Intraoperative BOLD-fMRI Cerebrovascular Reactivity Assessment [PDF]

, 2021
AbstractBlood oxygenation-level dependent cerebrovascular reactivity (BOLD-CVR) has gained attention in recent years as an effective way to investigate CVR, a measure of the hemodynamic state of the brain, with high spatial and temporal resolution. An association between impaired CVR and diverse pathologies has been observed, especially in ischemic ...
Muscas, Giovanni, van Niftrik, Christiaan Hendrik Bas, Sebök, Martina, Esposito, Giuseppe, Regli, Luca, Fierstra, Jorn   +5 more
openaire   +2 more sources

Cerebrovascular Reactivity and Central Arterial Stiffness in Habitually Exercising Healthy Adults

Frontiers in Physiology, 2018
Reduced cerebrovascular reactivity to a vasoactive stimulus is associated with age-related diseases such as stroke and cognitive decline. Habitual exercise is protective against cognitive decline and is associated with reduced stiffness of the large ...
Kathleen B. Miller, Anna J. Howery, Ronée E. Harvey, Marlowe W. Eldridge, Marlowe W. Eldridge, Jill N. Barnes   +5 more
doaj   +1 more source