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Hypoxia is a condition in which the body or a region of the body is deprived of adequate oxygen supply at the tissue level. [ 1 ] Hypoxia may be classified as either generalized, affecting the whole body, or local, affecting a region of the body. [ 2 ] Although hypoxia is often a pathological condition, variations in arterial oxygen ...
Hypoxaemia. Blood with higher oxygen content appears bright red. Specialty. Pulmonology. Hypoxemia is an abnormally low level of oxygen in the blood. [1][2] More specifically, it is oxygen deficiency in arterial blood. [3] Hypoxemia has many causes, and often causes hypoxia as the blood is not supplying enough oxygen to the tissues of the body.
Cerebral hypoxia is a form of hypoxia (reduced supply of oxygen), specifically involving the brain; when the brain is completely deprived of oxygen, it is called cerebral anoxia. There are four categories of cerebral hypoxia; they are, in order of increasing severity: diffuse cerebral hypoxia (DCH), focal cerebral ischemia, cerebral infarction ...
9.8 million unintentional worldwide (2015) [ 1 ] Deaths. 35,600 worldwide (2015) [ 2 ] Asphyxia or asphyxiation is a condition of deficient supply of oxygen to the body which arises from abnormal breathing. [ 3 ][ 4 ] Asphyxia causes generalized hypoxia, which affects all the tissues and organs, some more rapidly than others.
Generalized hypoxia is a medical condition in which the tissues of the body are deprived of the necessary levels of oxygen due to an insufficient supply of oxygen, which may be due to the composition or pressure of the breathing gas, decreased lung ventilation, or respiratory disease, any of which may cause a lower than normal oxygen content in the arterial blood, and consequently a reduced ...
Oxygen saturation is the fraction of oxygen -saturated haemoglobin relative to total haemoglobin (unsaturated + saturated) in the blood. The human body requires and regulates a very precise and specific balance of oxygen in the blood. Normal arterial blood oxygen saturation levels in humans are 96–100 percent. [ 1 ]
Brain ischemia is a condition in which there is insufficient bloodflow to the brain to meet metabolic demand. [ 1 ] This leads to poor oxygen supply or cerebral hypoxia and thus leads to the death of brain tissue or cerebral infarction / ischemic stroke. [ 2 ] It is a sub-type of stroke along with subarachnoid hemorrhage and intracerebral ...
Reperfusion injury, sometimes called ischemia-reperfusion injury (IRI) or reoxygenation injury, is the tissue damage caused when blood supply returns to tissue (re- + perfusion) after a period of ischemia or lack of oxygen (anoxia or hypoxia). The absence of oxygen and nutrients from blood during the ischemic period creates a condition in which ...