Results 11 to 20 of about 716,883 (287)

Calculating the work of breathing during mechanical ventilation

Journal of Mechanical Ventilation, 2021
Left figure: Passive patient esophageal pressure (Pes) in cmH2O on x-axis versus tidal volume in ml on y-axis. Green dashed line represents the chest wall compliance Right figure: same patient actively breathing on pressure support ventilation. (Pes) in
Mia Shokry, Melina Simonpietri, Kimiyo Yamasaki, Ehab G. Daoud   +3 more
doaj   +1 more source

Characterizing and Modeling Breathing Dynamics: Flow Rate, Rhythm, Period, and Frequency

Frontiers in Physiology, 2022
The characterization of breathing dynamics provides researchers and clinicians the ability to differentiate respiratory compensation, impairment, disease progression, ventilator assistance, and the onset of respiratory failure.
Nicholas J. Napoli, Nicholas J. Napoli, Nicholas J. Napoli, Victoria R. Rodrigues, Victoria R. Rodrigues, Victoria R. Rodrigues, Paul W. Davenport, Paul W. Davenport   +7 more
doaj   +1 more source

Delivery of high flow oxygen through nasal vs. tracheal cannulas: A bench study

Frontiers in Medicine, 2023
BackgroundThe use of high flow oxygen therapy (HFOT) has significantly escalated during the COVID-19 pandemic. HFOT can be delivered through both dedicated devices and ICU ventilators. HFOT can be administered to a patient via a nasal cannula (NC).
Martin Cour, Martin Cour, Claude Guérin, Claude Guérin, Florian Degivry, Laurent Argaud, Laurent Argaud, Bruno Louis   +7 more
doaj   +1 more source

The effect of proportional assist ventilation on the electrical activity of the human diaphragm during exercise

Experimental Physiology, 2023
We hypothesized that when a proportional assist ventilator (PAV) is applied in order to reduce the pressure generated by the diaphragm, there would be a corresponding reduction in electrical activity of the diaphragm.
Emily A. M. Gerson, Paolo B. Dominelli, Michael G. Leahy, Shalaya Kipp, Jordan A. Guenette, Bruno Archiza, Andrew William Sheel   +6 more
doaj   +1 more source

Physical Properties of Helium and Application in Respiratory Care

Encyclopedia, 2023
Helium is a low-density, inert, monoatomic gas that is widely used in medical applications. In respiratory care, Helium is mainly used as an adjunct therapy for patients with severe upper airway obstruction and asthma.
Eric Chappel
doaj   +1 more source

Components of aircraft life support systems interact with each other and the user

Frontiers in Physiology, 2022
The life support system in a tactical aircraft provides necessary supplemental oxygen to the aircrew. However, interactions among its various components may generate unexpected breathing loads.
F. Eric Robinson, Barbara E. Shykoff, Barbara E. Shykoff, Dan E. Warkander, Dan E. Warkander   +4 more
doaj   +1 more source

Inspiratory threshold loading negatively impacts attentional performance

Frontiers in Psychology, 2022
RationaleThere are growing concerns over the occurrence of adverse physiologic events (PEs) occurring in pilots during operation of United States Air Force and Navy high-performance aircraft. We hypothesize that a heightened inspiratory work of breathing
Eli F. Kelley, Troy J. Cross, Bruce D. Johnson   +2 more
doaj   +1 more source

Physiological effects of high-flow nasal cannula oxygen therapy after extubation: a randomized crossover study

Annals of Intensive Care, 2023
Background Prophylactic high-flow nasal cannula (HFNC) oxygen therapy can decrease the risk of extubation failure. It is frequently used in the postextubation phase alone or in combination with noninvasive ventilation.
Roque Basoalto, L. Felipe Damiani, Yorschua Jalil, María Consuelo Bachmann, Vanessa Oviedo, Leyla Alegría, Emilio Daniel Valenzuela, Maximiliano Rovegno, Pablo Ruiz-Rudolph, Rodrigo Cornejo, Jaime Retamal, Guillermo Bugedo, Arnaud W. Thille, Alejandro Bruhn   +13 more
doaj   +1 more source

An international prospective general population-based study of respiratory work disability [PDF]

, 2009
Background: Previous cross-sectional studies have shown that job change due to breathing problems at the workplace (respiratory work disability) is common among adults of working age.
Antó, J.M., Blanc, P. D., d’Errico, A., Jarvis, D., Kogevinas, M., Kromhout, H., Payo, F., Plana, E., Radon, Katja, Sunyer, J., Torén, K., Zock, J-P   +11 more
core   +1 more source

The role of the central chemoreceptor in causing periodic breathing. [PDF]

, 1999
In a previous publication (Fowler et aL, 1993), we reduced the classical cardiorespiratory control model of (Grodins et aL, 1967) to a much simpler form, which we then used to study the phenomenon of periodic breathing.
Fowler, A. C., Kalamangalam, G. P.
core   +2 more sources