Results 31 to 40 of about 51,296 (302)

Cerebrovascular Reactivity to Acetazolamide in Stable COPD Patients. [PDF]

J Clin Med
Background: COPD patients may be prone to cerebral small vessel disease resulting in perivascular white matter lesions and consequent cognitive decline. The pathophysiological background of these observations is not completely understood. It is hypothesized that COPD may involve systemic vascular dysfunction extending to the brain.
Siró P, Szabó-Szűcs R, Dudás V, Horváth I, Fülesdi B, Vaskó A.   +5 more
europepmc   +3 more sources

Comparison of cerebrovascular reactivity tests: a pilot human study

Journal of Electrical Bioimpedance, 2017
In neurosurgery intensive care units, cerebrovascular reactivity tests for neuromonitoring are used to evaluate the status of cerebral blood flow autoregulation; lack of autoregulation indicates a poor patient outcome.
Bodo Michael, Mahon Richard, Razumovsky Alex, Kouperberg Efim, Crimmins Michael, Armonda Rocco, Baruch Martin   +6 more
doaj   +1 more source

Optimal bispectral index level of sedation and cerebral oximetry in traumatic brain injury: a non-invasive individualized approach in critical care?

Intensive Care Medicine Experimental, 2022
Background Impaired cerebral autoregulation has been linked with worse outcomes, with literature suggesting that current therapy guidelines fail to significantly impact cerebrovascular reactivity.
Logan Froese, Alwyn Gomez, Amanjyot Singh Sainbhi, Carleen Batson, Trevor Slack, Kevin Y. Stein, Francois Mathieu, Frederick A. Zeiler   +7 more
doaj   +1 more source

Cerebrovascular pressure reactivity and brain tissue oxygen monitoring provide complementary information regarding the lower and upper limits of cerebral blood flow control in traumatic brain injury: a CAnadian High Resolution-TBI (CAHR-TBI) cohort study

Intensive Care Medicine Experimental, 2022
Background Brain tissue oxygen tension (PbtO2) and cerebrovascular pressure reactivity monitoring have emerged as potential modalities to individualize care in moderate and severe traumatic brain injury (TBI).
Alwyn Gomez, Mypinder Sekhon, Donald Griesdale, Logan Froese, Eleen Yang, Eric P. Thelin, Rahul Raj, Marcel Aries, Clare Gallagher, Francis Bernard, Andreas H. Kramer, Frederick A. Zeiler   +11 more
doaj   +1 more source

Cerebrovascular reactivity and white matter integrity [PDF]

Neurology, 2016
To compare the diffusion and perfusion MRI metrics of normal-appearing white matter (NAWM) with and without impaired cerebrovascular reactivity (CVR).Seventy-five participants with moderate to severe leukoaraiosis underwent blood oxygen level-dependent CVR mapping using a 3T MRI system with precise carbon dioxide stimulus manipulation.
Kevin, Sam, Boris, Peltenburg, John, Conklin, Olivia, Sobczyk, Julien, Poublanc, Adrian P, Crawley, Daniel M, Mandell, Lakshmikumar, Venkatraghavan, James, Duffin, Joseph A, Fisher, Sandra E, Black, David J, Mikulis   +11 more
openaire   +2 more sources

The aging brain and cerebrovascular reactivity

NeuroImage, 2018
Cerebrovascular reactivity (CVR) is a measure of vascular response to a vasoactive stimulus, and can be used to assess the health of the brain vasculature. In this current study we used different analyses of BOLD fMRI responses to CO2 to provide a number of metrics including ramp and step CVR, speed of response and transfer function analysis (TFA).
Larissa McKetton, Olivia Sobczyk, James Duffin, Julien Poublanc, Kevin Sam, Adrian P. Crawley, Lakshmikumar Venkatraghavan, Joseph A. Fisher, David J. Mikulis   +8 more
openaire   +2 more sources

Assessing a 600-mg Loading Dose of Clopidogrel 24 Hours Prior to Pipeline Embolization Device Treatment [PDF]

, 2018
Background: Clopidogrel/aspirin antiplatelet therapy routinely is administered 7-10 days before pipeline aneurysm treatment. Our study assessed the safety and efficacy of a 600-mg loading dose of clopidogrel 24 hours before Pipeline Embolization Device ...
Atallah, MD, Elias, Bekelis, MD, Kimon, Chalouhi, MD, Nohra, Hasan, MD, David, Jabbour, Pascal, MD, Rosenwasser, MD, MBA, FACS, FAHA, Robert H., Saad, MD, Hassan, Smith, MD, Michelle, Tjoumakaris, MD, Stavropoula, Zarzour, MD, Hekmat   +9 more
core   +2 more sources

Time and time-frequency analysis of near-infrared signals for the assessment of ozone autohemotherapy long-term effects in multiple sclerosis [PDF]

, 2013
Ozone autohemotherapy is an emerging therapeutic technique that is gaining increasing importance in treating neurological disorders. A validated and standard methodology to assess the effect of such therapy on brain metabolism and circulation is however ...
Franzini, M., Liboni, William, Lintas, Giangiacomo, Molinari, Filippo, Simonetti, V.   +4 more
core   +1 more source

Cerebrovascular reactivity in migraineurs

Headache Medicine, 2011
Cerebrovascular reactivity (CR) assessed by transcranial Doppler (TCD) has been evaluated among migraineurs with conflicting results. We assessed the CR using the breath holding index (BHI) among 228 migraineurs during ictal or interictal phase and 56 controls.
Arthur de Carvalho Jatobá e Sousa, Ciro Martins Gomes, Rodolfo de Souza Coelho, Ricardo Afonso Teixeira   +3 more
openaire   +1 more source

Evaluation of cerebrovascular reactivity in chronic hepatitis C patients using transcranial color Doppler.

PLoS ONE, 2019
Hepatitis C viral (HCV) infection is associated with systemic inflammation and metabolic complications that might predispose patients to atherosclerosis, including cerebrovascular atherosclerosis.
Mirela Pavicic Ivelja, Ivo Ivic, Kresimir Dolic, Antonio Mestrovic, Nikola Perkovic, Stipan Jankovic   +5 more
doaj   +1 more source