Results 41 to 50 of about 7,708 (187)

Hyperventilation Therapy for Control of Posttraumatic Intracranial Hypertension

open access: yesFrontiers in Neurology, 2017
During traumatic brain injury, intracranial hypertension (ICH) can become a life-threatening condition if it is not managed quickly and adequately. Physicians use therapeutic hyperventilation to reduce elevated intracranial pressure (ICP) by manipulating
Daniel Agustín Godoy   +5 more
doaj   +1 more source

SPONTANEOUS HYPOCAPNIA AFTER CARDIAC ARREST IS ASSOCIATED WITH 60-DAY MORTALITY

open access: yes, 2018
Background: Hypocapnia exposure after successful resuscitation from cardiac arrest has been previously demonstrated to be associated with poor clinical outcomes.
Roberts, Brian
core   +1 more source

pH of soul: how does acid-base balance affect our cognition? [PDF]

open access: yesBioImpacts, 2014
Respiratory Alkalosis due to changes in sympathetic hyperarousal during pathological emotional states can change our cognitive abilities. This occurs through the effects of Alkalosis upon cerebral vasoconstriction and the amount of ionized calcium in ...
Farnam Alireza
doaj   +1 more source

Myocardial oxygen supply during hypocapnia and hypercapnia in the dog

open access: yes, 1986
It has been postulated that a coronary vasoconstriction during hypocapnia might be opposed by a compensating coronary vasodilatation due to impaired myocardial oxygen supply.
Jan C. Wexels
core   +1 more source

End-Tidal Hypocapnia Under Anesthesia Predicts Postoperative Delirium

open access: yesFrontiers in Neurology, 2018
Background: Postoperative delirium (POD) might be associated with anesthetic management, but research has focused on choice or dosage of anesthetic drugs. We examined potential contributions of intraoperative ventilatory and hemodynamic management to POD.
W. Alan C. Mutch   +6 more
doaj   +1 more source

Hypocapnia does not alter collateral ventilation in sheep

open access: yes, 1990
Hypocapnic constriction has been proposed as a mechanism by which collateral pathways might rapidly alter ventilation to match perfusion. We studied the changes in response to hypocapnia with age in sheep, a species with collateral resistance (Rcoll ...
R. J. Traystman   +4 more
core   +1 more source

Effect of hypocapnia on ventral medullary blood flow and pH during hypoxia in cats

open access: yes, 1986
Ventral medullary blood flow was measured in 33 chloralose-urethan anesthetized cats during 60 min of isocapnia-hypoxia, mild hypocapnia-hypoxia, or severe hypocapnia-hypoxia.
J. A. Sexton, D. G. Davies, W. F. Nolan
core   +1 more source

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

Effects of hypocapnia and hypocapnic alkalosis on cardiovascular function

open access: yes, 1976
Cardiovascular effects of hypocapnia and hypocapnic alkalosis with and without a fluid load were studied in four groups of dogs (group I: fluid load control; group II: fluid load-isolated hypocapnia; group III: fluid load-hypocapnic alkalosis; group IV:
E. M. Creagh   +3 more
core   +1 more source

Hypocapnia-induced constriction of the canine peripheral airways exhibits tachyphylaxis

open access: yes, 1987
Hypocapnia-induced constriction of peripheral airways may be important in regulating the distribution of ventilation in pathological conditions. We studied the response of the peripheral lung to hypocapnia in anesthetized, paralyzed, mechanically ...
J. Kolbe   +3 more
core   +1 more source

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