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Brain death is used as an indicator of legal death in many jurisdictions, [6] but it is defined inconsistently and often confused by the public. [7] Various parts of the brain may keep functioning when others do not anymore, and the term "brain death" has been used to refer to various combinations.
The aforementioned mechanism is the most common cause of brain death; however, this increase in intracranial pressure does not always occur due to an arrest in cardiopulmonary function. [5] Traumatic brain injuries and subarachnoid hemorrhages can also increase the intracranial pressure in the brain leading to a cessation of brain function and ...
Brain death - Lazarus sign. The Lazarus sign or Lazarus reflex is a reflex movement in brain-dead or brainstem failure patients, [1] which causes them to briefly raise their arms and drop them crossed on their chests (in a position similar to some Egyptian mummies).
Brain death is sometimes used as a legal definition of death. [15] For all organisms with a brain, death can instead be focused on this organ. [16] [17] The cause of death is usually considered important and an autopsy can be done. There are many causes, from accidents to diseases.
TBI is a leading cause of death and disability around the globe [8] and presents a major worldwide social, economic, and health problem. [10] It is the number one cause of coma, [169] it plays the leading role in disability due to trauma, [76] and is the leading cause of brain damage in children and young adults. [15]
Myonecrosis is the death of individual muscle fibres due to injury, hypoxia, or infection. Common causes include spontaneous diabetic myonecrosis (a.k.a. diabetic muscle infarction) and clostridial myonecrosis (a.k.a. gas gangrene). [11] Some spider bites may lead to necrosis.
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Cerebral hypoxia can also be classified by the cause of the reduced brain oxygen: [23] Hypoxic hypoxia – Limited oxygen in the environment causes reduced brain function. Divers, aviators, [24] mountain climbers, and fire fighters are all at risk for this kind of cerebral hypoxia. The term also includes oxygen deprivation due to obstructions ...