Results 281 to 290 of about 259,881 (379)

Evaluation of Cerebral Perfusion Pressure, Cerebral Blood Flow, and Cerebral Oxygenation at Different Head of Bed Positions Using Transcranial Doppler and Near-Infrared Spectroscopy in Postoperative Neurosurgical Patients. [PDF]

Cureus
Baskar N, Sethuraman M, Praveen R, Hrishi AP, Vimala S, Prathapadas U, Abraham M.   +6 more
europepmc   +1 more source

A Comparison of Clinical and Research Practices in Measuring Cerebral Perfusion Pressure: A Literature Review and Practitioner Survey

Anesthesia and Analgesia, 2013
J. Kosty, P. Leroux, J. Levine, Soojin Park, Monisha A. Kumar, S. Frangos, E. Maloney-Wilensky, A. Kofke   +7 more
semanticscholar   +1 more source

The role of orexin A in the pathogenesis of ischaemic stroke at high altitude

Experimental Physiology, EarlyView.
Schematic illustration of the experimental design. This study investigated the role of Orexin A in the pathogenesis of ischemic stroke at high altitude. Abstract Orexin offers protection against cerebral ischaemia–reperfusion injury, with high altitude playing a key role in modulating its expression.
Minxia Zhu, Xu Guo, Jing Guo, Zhaojun Zhang, Kexin Zhang, Yaqi Lei, Yuhe Wang, Haoshuang Zhan   +7 more
wiley   +1 more source

Upper Limits of Cerebral Perfusion Pressure in Pediatric Traumatic Brain Injury – A STARSHIP Analysis

Bögli SY, Olakorede I, Smith CA, Hutchinson P, Czosnyka M, Smielewski P, Agrawal S.   +6 more
europepmc   +1 more source

Evaluating the Status of the Injured Brain: Cerebrovascular Reserve (CVR) Is Not Equivalent to Induced Cerebrovascular Reactivity (iCVRx) and Induced Pressure Reactivity (iPRx) in Defining the Critical Cerebral Perfusion Pressure (CPP). [PDF]

Adv Exp Med Biol
Nemoto EM, Bragin DE, Yonas H.
europepmc   +1 more source

Quantification of the cerebral pressure–flow relationship directional sensitivity: Reliability of shorter repeated squat–stand durations

Experimental Physiology, EarlyView.
Abstract The magnitude of changes in middle cerebral artery mean blood velocity (MCAv) is attenuated when mean arterial pressure (MAP) increases compared with when MAP decreases. This directional sensitivity has been characterized using a time‐corrected ratio calculated on MCAv and MAP changes induced by repeated squat–stands (RSS) at 0.05 and 0.10 Hz ...
Lawrence Labrecque, Marc‐Antoine Roy, Shahrzad Soleimani Dehnavi, Mahmoudreza Taghizadeh, Joel S. Burma, Jonathan D. Smirl, Patrice Brassard   +6 more
wiley   +1 more source

Effects of positive end-expiratory pressure on intracranial pressure, cerebral perfusion pressure, and brain oxygenation in acute brain injury: Friend or foe? A scoping review. [PDF]

J Intensive Med
Zunino G, Battaglini D, Godoy DA.
europepmc   +1 more source

Uncovering the impact of the cardiovascular system on cerebrovascular health using MRI

Experimental Physiology, EarlyView.
Abstract Human cerebrovasculature is finely tuned to enable local changes in blood flow to meet the brain's demands, whilst protecting the brain from systemic changes in blood pressure, both acutely during a heartbeat and chronically over time. This review summarises cerebrovascular structure and function, their role in disease and neurodegeneration ...
Ian D. Driver, Kevin Murphy
wiley   +1 more source

Cerebral perfusion measured by dynamic susceptibility contrast MRI is reduced in patients with idiopathic normal pressure hydrocephalus

Journal of Magnetic Resonance Imaging, 2014
D. Ziegelitz, G. Starck, D. Kristiansen, Martin Jakobsson, Maria Hultenmo, I. Mikkelsen, P. Hellström, M. Tullberg, C. Wikkelsø   +8 more
semanticscholar   +1 more source

Nitrite supplementation alleviates cerebrovascular dysfunction in chronically stressed mice, but cognitive decline remains

Experimental Physiology, EarlyView.
Abstract This study aimed to determine whether sodium nitrite supplementation prevented chronic stress‐induced cerebrovascular dysfunction and cognitive decline. We hypothesize that nitrite supplementation will prevent the oxidative environment and cerebrovascular dysfunction associated with chronic stress and maintain cognitive health.
Emily Burrage, Tyler Coblentz, Saina S. Prabhu, Nicole M. Eminhizer, Ryan Childers, Randall W. Bryner, Sara E. Lewis, Brooke A. Maxwell, Evan R. DeVallance, Eric E. Kelley, Paul D. Chantler   +10 more
wiley   +1 more source