Results 21 to 30 of about 762,411 (211)

Critical closing pressure in cerebrovascular circulation [PDF]

Journal of Neurology, Neurosurgery & Psychiatry, 1999
Cerebral critical closing pressure (CCP) has been defined as an arterial pressure threshold below which arterial vessels collapse. Hypothetically this is equal to intracranial pressure (ICP) plus the contribution from the active tone of cerebral arterial smooth muscle.
M, Czosnyka, P, Smielewski, S, Piechnik, P G, Al-Rawi, P J, Kirkpatrick, B F, Matta, J D, Pickard   +6 more
openaire   +2 more sources

Cerebrovascular reactivity to hypercapnia during sevoflurane or desflurane anesthesia in rats [PDF]

Korean Journal of Anesthesiology, 2019
Background Hypercapnia causes dilation of cerebral vessels and increases cerebral blood flow, resulting in increased intracranial pressure. Sevoflurane is reported to preserve cerebrovascular carbon dioxide reactivity.
Koji Sakata, Kazuhiro Kito, Naokazu Fukuoka, Kiyoshi Nagase, Kumiko Tanabe, Hiroki Iida   +5 more
doaj   +1 more source

Cerebral hyperperfusion syndrome after endovascular stent graft reconstruction for postirradiated carotid blowout syndrome: a case report [PDF]

Journal of Neurocritical Care, 2022
Background Cerebral hyperperfusion syndrome (CHS) is a failure of autoregulation after a revascularization procedure. It has rarely been reported in patients with no pre-existing cerebral hypoperfusion. Case Report We present a rare case of a patient who
Yu-Cheng Huang, Yen-Heng Lin, Chung-Wei Lee, Ting-Wei Liao   +3 more
doaj   +1 more source

Melatonin does not attenuate dynamic cardiovascular and cerebrovascular reflex responses to acute hypotension in healthy men [PDF]

Korean Journal of Anesthesiology, 2012
BackgroundMelatonin has been shown to attenuate the reflex sympathetic increases that arise in response to orthostatic challenges. We tested the hypothesis that the attenuated sympathetic increase induced by melatonin premedication may weaken the ...
Jiyoun Bang, Yong Seok Park, Sung-Moon Jeong, Jun-Gol Song, Young-Kug Kim, Gyu-Sam Hwang   +5 more
doaj   +1 more source

Risk of perioperative stroke and cerebral autoregulation monitoring: a systematic review

Arquivos de Neuro-Psiquiatria, 2022
Background Perioperative stroke, delirium, and cognitive impairment could be related to management and to variations in blood pressure control, cerebral hypoperfusion and raised blood volume.
Daniel Paes de Almeida dos Santos, Parthasarathy Deenadayalan Thirumala, Gautama Reddy, Daniel Ferreira de Barros, Vinicius Naves Rezende Faria, Varun Shandal, Pedro Kurtz   +6 more
doaj   +1 more source

Endothelial dysfunction indicators and hemorheological properties in acute ischemic stroke

Анналы клинической и экспериментальной неврологии, 2017
We evaluated endothelial dysfunction and hemorheological indicatorsin acute ischemic stroke. The hemorheological indicators(blood viscosity, plasma viscosity, hematocrit, erythrocyte aggregationand deformability, fibrinogen concentration) were ...
M. N. Azhermacheva, V. M. Alifirova, D. M. Plotnikov, O. I. Aliev, M. A. Solovtsov, K. I. Burkova, M. B. Plotnikov   +6 more
doaj   +1 more source

Cerebrovascular Reservoir and Arterial Transit Time Changes Assessed by Acetazolamide-Challenged Multi-Phase Arterial Spin Labeling Perfusion MRI in Chronic Cerebrovascular Steno-Occlusive Disease

대한영상의학회지, 2021
Purpose To explore cerebrovascular reservoir (CVR) and arterial transit time (ATT) changes using acetazolamide-challenged multi-phase arterial spin labeling (MP-ASL) perfusion-weighted MRI in chronic cerebrovascular steno-occlusive disease.
Inpyeong Hwang, Chul-Ho Sohn, Keun-Hwa Jung, Eung Koo Yeon, Ji Ye Lee, Roh-Eul Yoo, Koung Mi Kang, Tae Jin Yun, Seung Hong Choi, Ji-hoon Kim   +9 more
doaj   +1 more source

The cerebrovascular effects of adrenaline, noradrenaline and dopamine infusions under propofol and isoflurane anaesthesia in sheep [PDF]

, 2002
Publisher's copy made available with the permission of the publisher © Australian Society of AnaesthetistsInfusions of catecholamines are frequently administered to patients receiving propofol or isoflurane anaesthesia.
Grant, C., Upton, R., Martinez, A., Myburgh, J.   +3 more
core   +1 more source

Preliminary study on internal carotid artery perfusion imaging and clinical application based on digital subtraction angiography

Chinese Journal of Contemporary Neurology and Neurosurgery, 2022
Background DSA is an irreplaceable diagnostic method for cerebral vascular disease. It is sensitive to intracranial macrovascular disease, but not to distal blood perfusion. In order to quantitatively assess the perfusion area of the feeding artery, this
HU Zhen , JIN Wei, YIN Dou, DENG Yu⁃lei , LIU Jun , LI Bin⁃yin   +5 more
doaj   +1 more source

The clinical effect analysis of internal maxillary artery⁃radial artery⁃cerebral artery bypass for the treatment of cerebral vascular disease

Chinese Journal of Contemporary Neurology and Neurosurgery, 2022
Objective To investigate the clinical effect of cerebral vascular disease treated by transplantations of the short⁃segment radial artery (RA) using the internal maxillary artery (IMA) as the feeding artery.
TONG Zhi⁃yong , LIU Yuan, WANG Gang, SUN Huai⁃yu, YU Guan⁃dong, ZHANG Jin⁃song , CHU Jin⁃gang   +6 more
doaj   +1 more source