hyperoxia


Also found in: Encyclopedia.

hyperoxia

 [hi″per-ok´se-ah]
an abnormally increased supply or concentration of oxygen.

hy·per·ox·i·a

(hī'pĕr-ok'sē-ă),
1. An increased amount of oxygen in tissues and organs.
2. A greater oxygen tension than normal, such as that produced by breathing air or oxygen at pressures greater than 1 atmosphere.

hyperoxia

/hy·per·ox·ia/ (-ok´se-ah) an excess of oxygen in the system.hyperox´ic

hyperoxia

(hī′pər-ŏk′sē-ə)
n.
1. An excess of oxygen in tissues and organs.
2. A higher than normal oxygen tension, such as that produced by breathing air or oxygen at greater than atmospheric pressures.

hyperoxia

[-ok′sē·ə]
abnormally high oxygen tension in the blood.

hy·per·ox·i·a

(hī'pĕr-ok'sē-ă)
1. An increased amount of oxygen in tissues and organs.
2. A greater oxygen tension than normal.

hy·per·ox·i·a

(hī'pĕr-ok'sē-ă)
1. An increased amount of oxygen in tissues and organs.
2. A greater oxygen tension than normal.

hyperoxia (hī´pərok´sēə),

n an excess of oxygen in the system.

hyperoxia

an abnormally increased supply or concentration of oxygen.
References in periodicals archive ?
Hyperoxia stimulates an Nrf2-ARE transcriptional response via ROS-EGFR-PI3K-Akt/ERK MAP kinase signaling in pulmonary epithelial cells.
Formation of syncytial knots is increased by hyperoxia, hypoxia and reactive oxygen species.
During supplemental oxygen administration, clinicians often use the partial pressure of oxygen (PaO2), which is intermittent and delayed, to monitor levels of hyperoxia (higher than normal oxygenation).
A prospective, randomized clinical trial to compare the effect of hyperbaric to normobaric hyperoxia on cerebral metabolism, intracranial pressure, and oxygen toxicity in severe traumatic brain injury.
Association between arterial hyperoxia following resuscitation from cardiac arrest and in-hospital mortality.
Effects of hyperoxia on ventilatory limitation during exercise in advanced chronic obstructive pulmonary disease.
2000) Response of choroidal blood flow in the foveal region to hyperoxia and hyperoxia-hypercapnia.
Their study found that curcumin provided protection against bronchopulmonary dysplasia (BDP), a condition characterized by scarring and inflammation, and against hyperoxia, in which too much oxygen enters the body through the lungs, for up to 21 days after birth.
The altered regulation of vascular endothelial growth factor from repeated episodes of hyperoxia and hypoxia is one important factor in ROP pathogenesis.
Hypercarbia (too much carbon dioxide) and hyperoxia (excess oxygen), which can frequently occur during anesthesia and ICU care, are knownto alter pulmonary and systemic vascular resistance.
Normally, retinal blood vessels respond to changes in oxygen by expanding during hypoxia and constricting during hyperoxia.