Results 1 to 10 of about 32,185 (293)
Cerebrovascular Resistance: The Basis of Cerebrovascular Reactivity [PDF]
Frontiers in Neuroscience, 2018 The cerebral vascular network regulates blood flow distribution by adjusting vessel diameters, and consequently resistance to flow, in response to metabolic demands (neurovascular coupling) and changes in perfusion pressure (autoregulation).
James Duffin +14 more
doaj +3 more sources
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 +4 more
openaire +6 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 +6 more
doaj +2 more sources
Evaluation of cerebrovascular reactivity using transcranial Doppler in patients with influenza. [PDF]
PLoS ONEInfluenza is primarily a respiratory disease but can cause a broad spectrum of complications, including those affecting the cerebrovascular system. The aim of this study was to evaluate cerebrovascular reactivity in patients during and after influenza ...
Ana Orsolic Beslic +4 more
doaj +2 more sources
Abnormal Cerebrovascular Reactivity in Parkinson’s Disease [PDF]
Parkinson's Disease, 2015 We read with great interest the recent original article by Camargo et al. [1] titled “Abnormal Cerebrovascular Reactivity in Patients with Parkinson's Disease.” Authors observed that patients with Parkinson's disease (PD) have impaired cerebrovascular reactivity (CVR) as compared to those without orthostatic hypotension (OH) and to the control subjects.
Kiran Prakash
doaj +3 more sources
Impaired Cerebrovascular Reactivity in Huntington’s Disease [PDF]
Frontiers in Physiology, 2021 There is increasing evidence that impairments of cerebrovascular function and/or abnormalities of the cerebral vasculature might contribute to early neuronal cell loss in Huntington’s disease (HD).
Suk Tak Chan +5 more
doaj +3 more sources
Cerebrovascular Reactivity and Central Arterial Stiffness in Habitually Exercising Healthy Adults [PDF]
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 +5 more
doaj +2 more sources
Intensive Care Medicine Experimental, 2023 Background The aim of this study is to evaluate the impact of commonly administered sedatives (Propofol, Alfentanil, Fentanyl, and Midazolam) and vasopressor (Dobutamine, Ephedrine, Noradrenaline and Vasopressin) agents on cerebrovascular reactivity in ...
Logan Froese +8 more
doaj +5 more sources
Measuring Cerebrovascular Reactivity: Sixteen Avoidable Pitfalls [PDF]
Frontiers in Physiology, 2021 An increase in arterial PCO2 is the most common stressor used to increase cerebral blood flow for assessing cerebral vascular reactivity (CVR). That CO2 is readily obtained, inexpensive, easy to administer, and safe to inhale belies the difficulties in ...
Olivia Sobczyk +11 more
doaj +4 more sources
Neckties and Cerebrovascular Reactivity in Young Healthy Males: A Pilot Randomised Crossover Trial [PDF]
Stroke Research and Treatment, 2011 Background. A necktie may elevate intracranial pressure through compression of venous return. We hypothesised that a tight necktie would deleteriously alter cerebrovascular reactivity. Materials and Methods.
Mark Rafferty +3 more
doaj +2 more sources