Results 51 to 60 of about 6,175 (231)
Effects of changes in end‐tidal PO2 and PCO2 on neural responses during rest and sustained attention
Physiological Reports, 2021 Impairments of cognitive function during alterations in arterial blood gases (e.g., high‐altitude hypoxia) may result from the disruption of neurovascular coupling; however, the link between changes in arterial blood gases, cognition, and cerebral blood ...
Tom Bullock +4 more
doaj +1 more source
Sodium-Glucose Transporter 2 Inhibitors May Improve the Prognosis of Acute Heart Failure by Correcting Hypocapnia [PDF]
, 2023 Wen‐Jing Tang, Yu Miao
openalex +1 more source
Experimental Physiology, EarlyView.Abstract To test the hypothesis that hot water immersion (HWI) improves cerebrovascular function via shear‐mediated mechanisms, this study determined cerebrovascular reactivity to carbon dioxide (CVRCO2${\mathrm{CV}}{{\mathrm{R}}_{{\mathrm{C}}{{\mathrm{O}}_2}}}$) before and after 60 min of 39°C HWI and a 21°C air control (CON) in 15 healthy ...
Samuel F. Leaney +8 more
wiley +1 more source
Hyperventilation Therapy for Control of Posttraumatic Intracranial Hypertension
Frontiers in Neurology, 2017 During traumatic brain injury, intracranial hypertension (ICH) can become a life-threatening condition if it is not managed quickly and adequately. Physicians use therapeutic hyperventilation to reduce elevated intracranial pressure (ICP) by manipulating
Daniel Agustín Godoy +5 more
doaj +1 more source
Experimental Physiology, EarlyView.Abstract A lack of consensus remains on whether normobaric hypoxia (NH) and hypobaric hypoxia (HH) may differentially impact physiological factors affecting cerebrovascular regulation, particularly with an additional strenuous exercise component. We sought to compare the acute effects of NH and HH on global cerebral blood flow (gCBF) at an altitude ...
Rachel Turner +3 more
wiley +1 more source
pH of soul: how does acid-base balance affect our cognition? [PDF]
BioImpacts, 2014 Respiratory Alkalosis due to changes in sympathetic hyperarousal during pathological emotional states can change our cognitive abilities. This occurs through the effects of Alkalosis upon cerebral vasoconstriction and the amount of ionized calcium in ...
Farnam Alireza
doaj +1 more source
Hypoxia, Hypocapnia and Spirometry at Altitude
Clinical Science, 1997 1. Both hypoxia and hypocapnia can cause broncho-constriction in humans, and this could have a bearing on performance at high altitude or contribute to altitude sickness. We studied the relationship between spirometry, arterial oxygen saturation and end-tidal carbon dioxide (ETCO2) concentration in a group of healthy lowland adults during a stay at ...
Pollard, A +9 more
openaire +3 more sources
Effects of LI11 Acupuncture on CO2 reactivity in the anterior and middle cerebral arteries during hyperventilation-induced hypocapnia in normal subjects: A before and after study [PDF]
, 2021 Gyeongmuk Kim +9 more
openalex +1 more source
Experimental Physiology, EarlyView.Abstract figure legend During cardiopulmonary exercise testing, the decline in oxygenation in the prefrontal cortex of women is striking. This crucial brain area is directly involved in planning motor tasks. The decline is particularly pronounced at higher exercise intensities, especially after reaching the respiratory compensation point or anaerobic ...
Daniel Ramos‐López +12 more
wiley +1 more source
End-Tidal Hypocapnia Under Anesthesia Predicts Postoperative Delirium
Frontiers in Neurology, 2018 Background: Postoperative delirium (POD) might be associated with anesthetic management, but research has focused on choice or dosage of anesthetic drugs. We examined potential contributions of intraoperative ventilatory and hemodynamic management to POD.
W. Alan C. Mutch +6 more
doaj +1 more source