Results 31 to 40 of about 6,175 (231)

Hyperventilation and Hypoxia Hangover During Normobaric Hypoxia Training in Hawk Simulator

Frontiers in Physiology, 2022
Introduction: In military aviation during high-altitude operations, an oxygen or cabin pressure emergency can impair brain function and performance.
Nikke Varis, Antti Leinonen, Kai Parkkola, Kai Parkkola, Tuomo K. Leino, Tuomo K. Leino   +5 more
doaj   +1 more source

Hypocapnia in Neuroanesthesia: Current Situation

Colombian Journal of Anesthesiology, 2012
Abstract Introduction Hyperventilation has been a usual maneuver in the management of anesthesia in neurosurgical procedures. A few years back there used to be some medical skepticism about the potential of cerebral ischemia and today we know that it is detrimental and worsens the patient's condition and prognosis.
C., María E. Solano, B., Ichel Castillo, De Mejía, María C. Niño   +2 more
openaire   +2 more sources

Impact of Hyperoxia and Hypocapnia on Neurological Outcomes in Patients with Aneurysmal Subarachnoid Hemorrhage: A Retrospective Study

Critical Care Research and Practice, 2019
In recent decades, there is increasing evidence suggesting that hyperoxia and hypocapnia are associated with poor outcomes in critically ill patients with cardiac arrest or traumatic brain injury.
Kin Chio Li, Catherine Wing Yan Tam, Hoi-Ping Shum, Wing Wa Yan   +3 more
doaj   +1 more source

Respiratory Support During Pulmonary Artery Thromboembolia (Review)

Общая реаниматология, 2020
Pulmonary artery thromboembolia (PATE) is not a clinical entity as such, but a complication of different diseases and conditions leading to deep thrombosis in the low tension circulation system, right cardiac chambers or causing local thrombosis in the ...
D. A. Ostapchenko, A. I. Gutnikov, D. V. Rubanova, A. A. Losev   +3 more
doaj   +1 more source

Is hyperventilation a common iatrogenic problem in the neonatal intensive care unit?

Zdorovʹe Rebenka
Background. Mechanical ventilation is a critical intervention in neonatal intensive care units (NICUs), but it has been associated with increased mortality and morbidity, particularly through complications like hyperoxemia and hypocapnia. This study aims
Dahlia Bayoumi El Sebaie, Walaa Alsharany Abuelhamd, Ahmed Mohamed Abdelmomen, Amir Fawzy Kamal   +3 more
doaj   +1 more source

Vagal Nerve Stimulation Induces Intermittent Hypocapnia [PDF]

Epilepsia, 2003
Summary:  Purpose: To study whether respiratory alteration caused by vagal nerve stimulation (VNS) can change end‐tidal carbon dioxide (EtCO2) levels. Methods: We performed polygraphic recordings including capnographic monitoring during daytime sleep on adults with VNS therapy.
Mark D, Holmes, John W, Miller, Juha, Voipio, Kai, Kaila, Sampsa, Vanhatalo   +4 more
openaire   +2 more sources

The effect of hypocapnia on systemic perfusion in patients with single ventricle after surgery

Вестник анестезиологии и реаниматологии, 2021
The objective: the aim of the study was to identify the relationship between arterial hypocapnia and systemic hypoperfusion in newborns with single ventricular physiology after hemodynamic correction of congenital heart disease. Subjects and methods. 125
A. В. Naumov, G. G. Khubulava, Yu. S. Аleksandrovich, S. P. Marchenko, К. V. Pshenisnov, N. G. Pilyugov   +5 more
doaj   +1 more source

Effects of Respiratory Muscle Warm-up on High-Intensity Exercise Performance

Sports, 2015
Exercise performance is partially limited by the functionality of the respiratory musculature. Training these muscles improves steady-state exercise performance.
Taylor S. Thurston, Jared W. Coburn, Lee E. Brown, Albert Bartolini, Tori L. Beaudette, Patrick Karg, Kathryn A. McLeland, Jose A. Arevalo, Daniel A. Judelson, Andrew J. Galpin   +9 more
doaj   +1 more source

Regional changes in cerebral blood flow between the upright and supine posture and over 3 days of bed rest

Experimental Physiology, EarlyView.
Abstract A reduction in cerebral blood flow (CBF) has been observed during spaceflight and bed rest. We aimed to examine the magnitude and regional heterogeneity of the decrease in CBF during bed rest compared to posture changes on Earth. Seventeen participants (age, 29 ± 9 years, 7 females) were studied in the upright and supine posture and over 3 ...
Carmen Possnig, Kyohei Marume, Gautam Babu, Sylvan L. J. E. Janssen, Christopher M. Hearon Jr, Katrin A. Dias, Satyam Sarma, Justin S. Lawley, Benjamin D. Levine   +8 more
wiley   +1 more source

Sex differences in loop gain measured via superimposed end‐expiratory breath holds and inspired steady‐state hypoxia

Experimental Physiology, EarlyView.
Abstract Acute low oxygen exposure (hypoxia) elicits a hypoxic ventilatory response (HVR), which increases ventilation and mitigates hypoxaemia. During sustained exposure to hypoxia, ventilatory acclimatization increases peripheral chemoreflex (HVR) sensitivity or chemoreflex loop gain (LG).
Benjamin W. L. MacKenzie, Nicole A. Johnson, Nicholas D. J. Strzalkowski, Trevor A. Day   +3 more
wiley   +1 more source