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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 ...
Brain injury as a result of oxygen deprivation is generally termed hypoxic injury. Hypoxic ischemic encephalopathy (HIE) is a condition that occurs when the entire brain is deprived of an adequate oxygen supply, but the deprivation is not total.
Vascular surgeon. 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 ...
Acquired brain injury (ABI), traumatic brain injury (TBI), focal or diffuse, primary and secondary. Brain injury (BI) is the destruction or degeneration of brain cells. Brain injuries occur due to a wide range of internal and external factors. In general, brain damage refers to significant, undiscriminating trauma-induced damage.
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.
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 ...
As the brain swelling exceeds a certain point called the critical closing pressure (CrCP), the arterioles feeding the brain oxygen-rich blood will collapse, and the brain becomes deprived of blood. [1] This secondary injury can cause permanent brain damage from lack of oxygen.
Cortical blindness is the total or partial loss of vision in a normal-appearing eye caused by damage to the brain 's occipital cortex. [1] Cortical blindness can be acquired or congenital, and may also be transient in certain instances. [2] Acquired cortical blindness is most often caused by loss of blood flow to the occipital cortex from ...
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