Results 111 to 120 of about 15,294 (258)

Uncovering the impact of the cardiovascular system on cerebrovascular health using MRI

Experimental Physiology, EarlyView.
Abstract Human cerebrovasculature is finely tuned to enable local changes in blood flow to meet the brain's demands, whilst protecting the brain from systemic changes in blood pressure, both acutely during a heartbeat and chronically over time. This review summarises cerebrovascular structure and function, their role in disease and neurodegeneration ...
Ian D. Driver, Kevin Murphy
wiley   +1 more source

Time‐course analysis of cerebral circulation and cardiorespiratory responses to acute central blood volume reduction in healthy young males

Experimental Physiology, EarlyView.
Abstract Central blood volume (CBV) reduction challenges circulatory and respiratory homeostasis, particularly during the initial compensatory phase (0–2 min), when rapid physiological adaptations occur. In this study, we examined dynamic cardiorespiratory responses to CBV reduction using lower‐body negative pressure (LBNP) in 11 healthy young males ...
Marina Feeley, Tomoki Watada, Go Ito, Ai Shimada, Toru Sawai, Hideomi Nakata, Shingo Otsuki, Tadayoshi Miyamoto   +7 more
wiley   +1 more source

The effect of high frequency oscillatory ventilation combined with tracheal gas insufflation on extravascular lung water in patients with acute respiratory distress syndrome: a randomized, crossover, physiological study. [PDF]

, 2014
Purpose: High frequency oscillation combined with tracheal gas insufflation (HFO-TGI) improves oxygenation in patients with Acute Respiratory Distress Syndrome (ARDS). There is limited physiologic data regarding the effects of HFO-TGI on hemodynamics and
Malachias, Sotirios, Mentzelopoulos, Spyros-D, Vrettou, Charikleia-Spyridon, Zakynthinos, Spyros-G   +3 more
core  

No difference in mean middle cerebral artery blood velocity responses between lower‐ and upper‐body unilateral resistance exercise in untrained individuals

Experimental Physiology, EarlyView.
Abstract Dynamic resistance exercise (RE) produces sinusoidal fluctuations in blood pressure that are mirrored by middle cerebral artery blood velocity (MCAv). However, whether lower‐ or upper‐body RE elicits a differential cerebrovascular response has not yet been examined.
Stephanie Korad, Toby Mündel, Blake G. Perry   +2 more
wiley   +1 more source

Myths and methodologies: Exposure and measurements under normobaric hypoxia

Experimental Physiology, EarlyView.
Abstract Usually, settings of normobaric hypoxia underestimate the environmental hypoxia they are supposed to reproduce. The likely steady state of water vapour pressure within the human airways keeps the partial pressure of inspired oxygen very close to the assumed value, but this does not apply to the calculation of environmental hypoxia or ...
Danilo Bondi
wiley   +1 more source

Pediatric cardiac patients with pulmonary hemorrhage supported on ECMO: An ELSO registry study

The Journal of ExtraCorporeal Technology
Background: Pulmonary Hemorrhage (PH) is a rare but potentially devastating condition and pediatric cardiac patients are at increased risk for. ECMO may be used to safely support these patients, but data is limited.
Anton-Martin Pilar, Young Caroline, Sandhu Hitesh, Vellore Shilpa   +3 more
doaj   +1 more source

The efficacy of high frequency ventilation in severe neonatal respiratory failure [PDF]

, 2005
Hægt er að lesa greinina í heild sinni með því að smella á hlekkinn View/OpenOBJECTIVE: To evaluate the efficacy of high frequency ventilation (HFV) in infants failing conventional ventilator therapy at our institution.
Atli Dagbjartsson, Gestur Pálsson, Hörður Bergsteinsson, Sveinn Kjartansson, Sólrún Björk Rúnarsdóttir, þórður Þórkelsson   +5 more
core  

Cerebrovascular regulation during heat stress

Experimental Physiology, EarlyView.
Abstract Given that the brain is a highly metabolic organ and is enclosed by the skull, effective regulation of cerebral blood flow (CBF), not only for oxygen and nutrients supply but also as a means of convective heat exchange, is critical for preventing excessive elevations in brain temperature.
Kanoko Ito, Manabu Shibasaki
wiley   +1 more source

The effect of budesonide delivered by high-frequency oscillatory ventilation on acute inflammatory response in severe lung injury in adult rabbits. [PDF]

Physiol Res, 2023
Nemcova N, Kosutova P, Kolomaznik M, Mateffy S, Turianikova Z, Calkovska A, Mikolka P.   +6 more
europepmc   +1 more source

Brain strain: Blood flow and metabolism in environmental extremes

Experimental Physiology, EarlyView.
Abstract This narrative review compares and contrasts the most commonly encountered environmental stressors on human cerebrovascular functioning. From high altitude and space, extreme apnoea, heat and cold stress, the impact of these stressors on the regulation of cerebral blood flow (CBF) and oxygen metabolism (CMRO2${\mathrm{CM}}{{\mathrm{R}}_ ...
Dario Vrdoljak, Damian M. Bailey, Travis D. Gibbons, Philip N. Ainslie   +3 more
wiley   +1 more source