Results 61 to 70 of about 6,175 (231)

Changes in Optic Nerve Sheath Diameter in Response to Various Levels of End-Tidal Carbon Dioxide in Healthy Patients under General Anesthesia

open access: yesJournal of Neuroanaesthesiology and Critical Care, 2018
Background Intracranial pressure (ICP) monitoring is an essential component in management of traumatic brain-injured (TBI) patients. While invasive techniques are associated with many complications, noninvasive nature of ultrasonographic measurement of ...
Indu Kapoor   +4 more
doaj   +1 more source

Acute ketone monoester ingestion lowers resting cerebral blood flow: a randomized cross‐over trial

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend This double‐blind, placebo‐controlled, randomized cross‐over trial investigated the effects of ketone monoester (KME) ingestion on resting cerebral blood flow (CBF) in young adults. We demonstrate that KME supplementation lowers CBF in a dose‐dependent manner over 2‐houra post‐ingestion, whereas CBF remained unchanged following ...
Aedan J. Rourke   +7 more
wiley   +1 more source

The Value of High Frequency Oscillatory Ventilation Combined with Volume Guarantee in Extremely Preterm Infants with Respiratory Distress Syndrome [PDF]

open access: yesZhongguo quanke yixue
Background Early hypocapnia in extremely preterm infants is associated with intraventricular hemorrhage (IVH) and bronchopulmonary dysplasia (BPD). The results of foreign studies show that high frequency oscillatory ventilation combined with volume ...
LOU Wubin, LI Fang, ZHANG Weixing, SHEN Jie
doaj   +1 more source

The role of acid‐base balance in cerebrovascular and ventilatory responses to CO2 during 10 h normobaric hypoxia

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend During 10 h exposures to normobaric hypoxia exposure there was a selective leftward shift in ventilatory response to hyperoxic hypercapnic rebreathing, but not the cerebrovascular response. The key findings are that the resetting of the central chemoreflex to lower PCO2${P_{{\mathrm{C}}{{\mathrm{O}}_2}}}$ during early hypoxic ...
Holly Barclay   +3 more
wiley   +1 more source

Clinical determinants and prognostic significance of hypocapnia in acute heart failure [PDF]

open access: gold, 2022
Mateusz Garus   +9 more
openalex   +1 more source

Ventilatory and cerebrovascular responses to exercise in lowlander children acclimatizing to high‐altitude

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend To investigate age‐related differences in ventilatory and cerebrovascular responses to exercise at high‐altitude, adults (n = 10, 23–44 years) and children (n = 8, 7–14 years) completed progressive cycling exercise tests at sea‐level and following 6 days of acclimatization at 3800 m.
J. L. Koep   +11 more
wiley   +1 more source

Exercise‐induced potentiation of the acute hypoxic ventilatory response: Neural mechanisms and implications for cerebral blood flow

open access: yesExperimental Physiology
A given dose of hypoxia causes a greater increase in pulmonary ventilation during physical exercise than during rest, representing an exercise‐induced potentiation of the acute hypoxic ventilatory response (HVR). This phenomenon occurs independently from
Diogo M. Oliveira   +3 more
doaj   +1 more source

Heart Rate Variability Biofeedback in the Management of TMD and Bruxism: Case Report

open access: yesJournal of the California Dental Association
Background Sleep bruxism (SB) and temporomandibular dysfunction (TMD) are frequently managed with oral orthotic occlusal devices (OOOD). While these devices protect the teeth, they do not address the underlying autonomic or physiological contributors to ...
David Cheng
doaj   +1 more source

Elevated carotid body tonic activity contributes to ventilatory acclimatization and de‐acclimatization to high altitude at rest and during exercise

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Participants spent 13 days at high altitude (3800 m), where the reduced inspired oxygen pressure (↓PiO2$ \downarrow {P_{{\mathrm{i}}{{\mathrm{O}}_2}}}$) which elicited ventilatory acclimatization and increased inhibition of ventilation by transient hyperoxia (ΔV̇E$\Delta {\dot V_{\mathrm{E}}}$).
Ayechew A. Getu   +6 more
wiley   +1 more source

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