Results 181 to 190 of about 68,777 (296)

Broad-linewidth sources result in a skin-tone bias in noninvasive optical measurement of oxygen saturation. [PDF]

J Biomed Opt
Blaney G, Fantini S.
europepmc   +1 more source

Pulmonary arterial mechanoreceptors mediate sustained sympathoexcitation during high altitude hypoxia in humans

Experimental Physiology, EarlyView.
Abstract Sympathetic nervous system activation is a hallmark of high‐altitude hypoxia, yet the afferent mechanisms remain incompletely defined. We examined the relative contributions of pulmonary arterial mechanoreceptors and carotid chemoreceptors – two excitatory pathways co‐activated by hypoxia – to sustained sympathoexcitation at altitude.
Michiel T. Ewalts, Lydia L. Simpson, Jack S. Talbot, Elliott J. Jenkins, Travis D. Gibbons, Connor A. Howe, Lauren E. Maier, Emily R. Vanden Berg, Alex M. Williams, Philip N. Ainslie, Samuel J. Oliver, Craig D. Steinback, Mike Stembridge, Jonathan P. Moore   +13 more
wiley   +1 more source

Real-Time Monitoring of Tissue Oxygenation During Hyperbaric Oxygen Exposure Using In Vivo EPR Oximetry. [PDF]

Magn Reson Med
Kmiec MM, Petryakov SV, Kheirollah A, Ubert CS, O'Connell RC, Kuppusamy P.   +5 more
europepmc   +1 more source

Haemodynamic effects of selective venoconstriction with centhaquine in spontaneously breathing patients with mixed hypovolaemic‐vasodilatory shock

Experimental Physiology, EarlyView.
Abstract Circulatory shock remains difficult to manage because fluid resuscitation and catecholamines may exacerbate vascular dysfunction and tissue hypoperfusion. This prospective physiological analysis, embedded within a multicentre phase IV study, examined whether selectively targeting the venous circulation with centhaquine improves circulatory ...
Athanasios Chalkias, Aman Khanna, Krish Vaidya, Dharmesh Shah, Anil Gulati   +4 more
wiley   +1 more source

A retrospective cohort assessing practices of hypoxemia management for inpatients of Rwandan public hospitals. [PDF]

Discov Public Health
Musabirema F, Webster HH, Mushumbamwiza H, Kayitesi C, Tupe A, Sambe N, Chizyuka N, Ngwije A, Kateera B, Rukundo A, Ntihumbya JB, Musafiri S, Subhi R, Burhin M, Graham HR, Lam F, Ntihabose CK.   +16 more
europepmc   +1 more source

The impact of biological sex and stroke volume constituents on heterogeneity in the Q̇$\dot{Q}$–V̇O2${{\dot{V}}_{{{{\mathrm{O}}}_2}}}$ relationship and skeletal muscle saturation during cycling

Experimental Physiology, EarlyView.
Abstract Interindividual variability in the cardiac output (Q̇$\dot{Q}$) to the rate of oxygen consumption (V̇O2${{\dot{V}}_{{{{\mathrm{O}}}_2}}}$) slope (Q̇$\dot{Q}$–V̇O2${{\dot{V}}_{{{{\mathrm{O}}}_2}}}$) in healthy males is related to stroke volume (SV); however, the impact of differences in left ventricular (LV) structure and function as well as ...
Adam N. Di Salvo, Sinan Osman, Jacob L. Schwartz, Nino Nikolovski, Robert F. Bentley   +4 more
wiley   +1 more source

Clinician Perspectives of Oxygen Control in Children With Bronchopulmonary Dysplasia at Home: An International Survey of Clinicians From 44 Countries. [PDF]

J Paediatr Child Health
Pham TAN, Sotiropoulos JX, Rakshasbhuvankar A, Bhandari V, Schmölzer GM, Kumar RK, Kusuda S, Zhang H, Nguyen TT, Kitsommart R, Kim HS, Ma L, Yang F, Ahmad Kamar A, Lusyati SD, Yeo KT, Kong JY, Tooke L, Fitzgerald D, Gonski K, Dekker J, Lim G, Lara-Díaz VJ, Oei JL.   +23 more
europepmc   +1 more source

The contributions of nocturnal hypoxaemia and sleep disturbances to acute mountain sickness

Experimental Physiology, EarlyView.
Abstract Acute mountain sickness (AMS) is common after ascent to altitude, yet individual susceptibility remains difficult to predict and diagnosis relies on subjective report. Sleep disturbances and nocturnal hypoxaemia at altitude may provide insight, but their relationship to AMS is incompletely understood.
D. M. Williamson, M. K. Gudelunas, J. W. Sall   +2 more
wiley   +1 more source

Effect of an acute exercise bout on alveolar–capillary membrane permeability and interstitial fluid accumulation in COPD

Experimental Physiology, EarlyView.
Abstract Exertional dyspnoea is a debilitating symptom in chronic obstructive pulmonary disease (COPD) and often persists after the cessation of exercise. The underlying mechanisms are not fully understood, and a potential contributing factor that has not previously been investigated is alveolar–capillary membrane breaching with extravasation of fluid ...
Rie Skovly Thomsen, Iben Elmerdahl Rasmussen, Stine Buus Nymand, Anna Agnes Lytzen, Jacob Peter Hartmann, Milan Mohammad, Malte Lund Adamsen, Birgitte Hanel, Jann Mortensen, Ronan M. G. Berg   +9 more
wiley   +1 more source

Beyond pulse oximetry: lessons from the AIRE project on translating innovation into improved child survival. [PDF]

BMJ Glob Health
Lamontagne F, Gonzalez IJ, Vignon M.
europepmc   +1 more source