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A soft tissue injury is the damage of muscles, ligaments and tendons throughout the body. Common soft tissue injuries usually occur from a sprain, strain, a one-off blow resulting in a contusion or overuse of a particular part of the body. Soft tissue injuries can result in pain, swelling, bruising and loss of function. [1]
Cerebral hypoxia is typically grouped into four categories depending on the severity and location of the brain's oxygen deprivation: [20] Aneurysm in a cerebral artery, one cause of hypoxic anoxic injury (HAI). Diffuse cerebral hypoxia – A mild to moderate impairment of brain function due to low oxygen levels in the blood.
Prolonged hypoxia induces neuronal cell death via apoptosis, resulting in a hypoxic brain injury. [34] [35] Oxygen deprivation can be hypoxic (reduced general oxygen availability) or ischemic (oxygen deprivation due to a disruption in blood flow) in origin. Brain injury as a result of oxygen deprivation is generally termed hypoxic injury.
Reperfusion injury plays a major part in the biochemistry of hypoxic brain injury in stroke. Similar failure processes are involved in brain failure following reversal of cardiac arrest ; [ 3 ] control of these processes is the subject of ongoing research.
The most immediate injury caused by asphyxia is hypoxia, which can in turn cause acute lung injury or acute respiratory distress syndrome as well as damage to the circulatory system. The most severe injury associated with asphyxiation is cerebral hypoxia and ischemia , in which the brain receives insufficient oxygen or blood, resulting in ...
Emotional stress can also negatively affect the healing of a wound, possibly by raising blood pressure and levels of cortisol, which lowers immunity. [ 7 ] What appears to be a chronic wound may also be a malignancy ; for example, cancerous tissue can grow until blood cannot reach the cells and the tissue becomes an ulcer. [ 13 ]
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Hypoxic infarcts in the brain presents as this type of necrosis, because the brain contains little connective tissue but high amounts of digestive enzymes and lipids, and cells therefore can be readily digested by their own enzymes. [6] Gangrenous necrosis can be considered a type of coagulative necrosis that resembles mummified tissue. It is ...