Results 91 to 100 of about 782,046 (314)

Effects of the angle of head‐down tilt on dynamic cerebral autoregulation during combined exposure to cephalad fluid shift and mild hypercapnia

Experimental Physiology, EarlyView.
Abstract Astronauts experience combined exposure to a cephalad fluid shift and mild hypercapnia during space missions, potentially contributing to health problems. Such combined exposure may weaken dynamic cerebral autoregulation. The magnitude of cephalad fluid shift varies between individuals, and dynamic cerebral autoregulation may be affected more ...
Tomokazu Kato, Yojiro Ogawa, Ken‐ichi Iwasaki   +2 more
wiley   +1 more source

Wavelet coherence analysis of dynamic cerebral autoregulation in neonatal hypoxic–ischemic encephalopathy

NeuroImage: Clinical, 2016
Cerebral autoregulation represents the physiological mechanisms that keep brain perfusion relatively constant in the face of changes in blood pressure and thus plays an essential role in normal brain function.
Fenghua Tian, Takashi Tarumi, Hanli Liu, Rong Zhang, Lina Chalak   +4 more
doaj   +1 more source

Non-Invasive and Minimally-Invasive Cerebral Autoregulation Assessment: A Narrative Review of Techniques and Implications for Clinical Research

Frontiers in Neurology, 2022
The process of cerebral vessels regulating constant cerebral blood flow over a wide range of systemic arterial pressures is termed cerebral autoregulation (CA).
Amanjyot Singh Sainbhi, Alwyn Gomez, Alwyn Gomez, Logan Froese, Trevor Slack, Carleen Batson, Kevin Y. Stein, Dean M. Cordingley, Dean M. Cordingley, Arsalan Alizadeh, Frederick A. Zeiler, Frederick A. Zeiler, Frederick A. Zeiler, Frederick A. Zeiler, Frederick A. Zeiler   +14 more
doaj   +1 more source

Worsening of cerebral hyperemia by the administration of terlipressin in acute liver failure with severe hepatic encephalopathy [PDF]

, 2004
There is increasing evidence that terlipressin is useful in patients with cirrhosis and hepatorenal syndrome, but there are no data of its use in patients with acute liver failure (ALF) in whom hepatorenal syndrome is common.
Davies, N.A., Hayes, P.C., Jalan, R., Lee, A., Mookerjee, R.P., Shawcross, D.L., Williams, R.   +6 more
core  

Exercise, cognition and Alzheimer’s disease: More is not necessarily better [PDF]

, 2005
Regional hypoperfusion, associated with a reduction in cerebral metabolism, is a hallmark of Alzheimer’s disease (AD) and contributes to cognitive decline. Cerebral perfusion and hence cognition can be enhanced by exercise.
Adlard, Alessi, Anton, Attwell, Baumbach, Bierman, Carmeliet, Chen, Chen, Churchill, Cohen, Colcombe, Cooke, Corder, Cott, Critchley, Cumming, Daley, De la Torre, Dick Swaab, Diesfeldt, Dubelaar, Eldridge, Endres, Erik Scherder, Farkas, Fedele, Fernández-Vizarra, Folstein, Fratiglioni, Friedman, Graham, Guigoz, Hamel, Harkany, Hayward, Hellström, Herrmann, Herrmann, Hoffman, Huang, Hönigfeld, Iadecola, Ide, Ide, Ide, Jagust, Johnson, Jørgensen, Katz, Keller, Kivipelto, Koike, Koistinaho, Kubes, Kurosawa, Launer, Laura Eggermont, Lawton, Lazowski, Lehtovirta, Liesi, Lijnen, Lindenmuth, MacRae, Martel, Matsuda, Matsuda, Maxwell, Melchor, Meltzer, Meyer, Miklossy, Monji, Morgan, Moro, Mulder, Muldowney, Nagahama, Nagai, Nakajima, Namazi, Naso, Palleschi, Palmer, Parihar, Paul Luiten, Petersen, Plutchik, Pober, Pott, Powell, Prager, Prunell, Raven, Reiman, Reitan, Rolland, Roth, Salehi, Scherder, Schini-Kerth, Selley, Skoog, Smith, Sobel, Spinler, Srikiatkhachorn, Suzuki, Swaab, Swaab, Swaab, Swain, Tappen, Tappen, Teri, Tinetti, Tong, Tong, Tsolaki, Tucker, Tucker, Ueda, Ushijima, Van de Winckel, Van Dyck, Van Gelder, Wang, Warkentin, Wechsler, Wechsler, Weller, Wenk, Whelton, White, Wilson, Wolf, Zarit   +137 more
core   +1 more source

Cerebral Perfusion and Cerebral Autoregulation after Cardiac Arrest

BioMed Research International, 2018
Out of hospital cardiac arrest is the leading cause of death in industrialized countries. Recovery of hemodynamics does not necessarily lead to recovery of cerebral perfusion.
J.M.D. van den Brule, J. V. D. Hoeven, C. Hoedemaekers   +2 more
semanticscholar   +1 more source

Regional changes in cerebral blood flow between the upright and supine posture and over 3 days of bed rest

Experimental Physiology, EarlyView.
Abstract A reduction in cerebral blood flow (CBF) has been observed during spaceflight and bed rest. We aimed to examine the magnitude and regional heterogeneity of the decrease in CBF during bed rest compared to posture changes on Earth. Seventeen participants (age, 29 ± 9 years, 7 females) were studied in the upright and supine posture and over 3 ...
Carmen Possnig, Kyohei Marume, Gautam Babu, Sylvan L. J. E. Janssen, Christopher M. Hearon Jr, Katrin A. Dias, Satyam Sarma, Justin S. Lawley, Benjamin D. Levine   +8 more
wiley   +1 more source

Dynamic Cerebral Autoregulation and Monitoring Cerebral Perfusion [PDF]

Hypertension, 2010
Cerebral autoregulation (CA) describes the capability of the brain to maintain its flow as relatively stable over a wide rage of mean arterial pressures (MAPs), for example, from 60 to 150 mm Hg. Because the brain is encompassed in the skull, CA is vital for preventing cerebral edema and hemorrhage, as illustrated in some patients experiencing acute ...
Secher, Niels H, van Lieshout, Johannes J   +1 more
openaire   +3 more sources

Cerebral pressure autoregulation and carbon dioxide reactivity during propofol-induced EEG suppression [PDF]

, 2017
We studied cerebral pressure autoregulation and carbon dioxide reactivity during propofol-induced electrical silence of the electroencephalogram (EEG) in 10 patients.
LAM, A. M., MATTA, B. F., MAYBERG, T. S., STREBEL, S.   +3 more
core  

Sport-Related Concussion Alters Indices of Dynamic Cerebral Autoregulation

Frontiers in Neurology, 2018
Sport-related concussion is known to affect a variety of brain functions. However, the impact of this brain injury on cerebral autoregulation (CA) is poorly understood. Thus, the goal of the current study was to determine the acute and cumulative effects
A. Wright, J. Smirl, K. Bryk, Sarah Fraser, M. Jakovac, P. van Donkelaar   +5 more
semanticscholar   +1 more source