Results 181 to 190 of about 6,175 (231)
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Dependence of csf on plasma bicarbonate during hypocapnia and hypoxemic hypocapnia
Respiration Physiology, 1976We have previoulsy shown pH compensation to be similar in CSF and arterial blood during chronic hypoxemic hypocapnia in man and pony, and postulated that the compensatory reduction in CSF [HCO3] was dependent upon corresponding changes in [HCO3]a. We tested this hypothesis in anesthetized, paralyzed dogs by determining the effects of 7 or 14 hours of ...
D A, Pelligrino, J A, Dempsey
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Hyperventilation-Induced Hypocapnia in an Aviator
Aerospace Medicine and Human Performance, 2022BACKGROUND: Physiological episodes are a top safety concern for aviators across the United States military. While many cases and a variety of causes for physiological episodes have been described, few cases, if any, have been reported of hyperventilation-induced hypocapnia and transient loss of consciousness.
Kathleen E P, Kramer, Eric E, Anderson
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Hypercapnia and hypocapnia in neonates
World Journal of Pediatrics, 2008The arterial partial pressure of carbon dioxide (PaCO2) represents the balance between CO2 production and consumption. Abnormal increase or decrease in PaCO2 can affect the body's internal environment and function. Permissive hypercapnia has aroused more attention as a novel ventilatory therapy.
Wei, Zhou, Wen, Liu
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Association Between Hypocapnia and Febrile Seizures
Journal of Child Neurology, 2014The purpose of this study is to determine whether hyperthermia-induced hyperventilation with subsequent hypocapnia is relevant to febrile seizures in children. This is only the second study to measure pCO2 and pH values in children with febrile seizures.
Buket, Kilicaslan +4 more
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Lactate and pyruvate accumulation during hypocapnia
Respiration Physiology, 1971Abstract Dogs anesthetized with sodium pentobarbital and passively hyperventilated to Pa CO 2 of 15 torr developed an increase in blood lactate plus pyruvate of approximately 2 mM/L m 2 hr. When the same procedure was carried out with animals breathing 5% CO 2 there was no increase in lactate or pyruvate.
A C, Garcia +3 more
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Central respiratory CO2 sensitivity at extreme hypocapnia
Respiration Physiology, 1984In 7 cats anaesthetized with chloralose-urethane the ponto-medullary region was artificially perfused with blood having PaCO2 values (central PaCO2) in the range of 0.3-4.5 kPa. The ventilatory response to changes in central PaCO2 was measured at constant hypercapnic and hypoxic conditions in the systemic circulation.
A, Berkenbosch +4 more
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Hypoxic Respiratory Response during Acute Stable Hypocapnia
American Journal of Respiratory and Critical Care Medicine, 2003The hypoxic ventilatory response during hypocapnia has been studied with divergent results. We used volume-cycled ventilation in spontaneously breathing normal subjects to study their hypoxic ventilatory response under conditions of stable hypocapnia. Subjects were studied at three different levels of end-tidal (partial) carbon dioxide pressure (PETCO2)
Stephen, Corne +2 more
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