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Brainstem death is a clinical syndrome defined by the absence of reflexes with pathways through the brainstem – the "stalk" of the brain, which connects the spinal cord to the mid-brain, cerebellum and cerebral hemispheres – in a deeply comatose, ventilator-dependent patient.
In the human brain the brainstem is composed of the midbrain, the pons, and the medulla oblongata. [1] The midbrain is continuous with the thalamus of the diencephalon through the tentorial notch, and sometimes the diencephalon is included in the brainstem. [2] The brainstem is very small, making up around only 2.6 percent of the brain's total ...
Brain death; Other names: Brain stem death: A brain-dead patient. The patient can also be seen here executing the Lazarus sign. Specialty: Neurology, neurosurgery, palliative care, critical care medicine: Complications: Total organ failure: Causes: Cardiac arrest, myocardial infarction, stroke, blood clot: Diagnostic method: Stimulation testing ...
Brain death refers to an irreversible total loss of brain function. [200] [201] This is characterised by coma, loss of reflexes, and apnoea, [200] however, the declaration of brain death varies geographically and is not always accepted. [201] In some countries there is also a defined syndrome of brainstem death. [202]
Per the United Kingdom Medical Royal Colleges, a diagnosis of brain death is a two-fold process including 1) identifying the cause of irreversible brain damage and excluding reversible causes of brain damage and 2) conducting a series of clinical and laboratory tests to assess brain stem function. [7] [8]
Researchers studying the brain’s final moments have gained new insight into the “wave of death” that occurs before a brain’s activity fully flatlines. There's a 'Wave of Death' in Every ...
The risk of death from an intraparenchymal bleed in traumatic brain injury is especially high when the injury occurs in the brain stem. [48] Intraparenchymal bleeds within the medulla oblongata are almost always fatal, because they cause damage to cranial nerve X, the vagus nerve, which plays an important role in blood circulation and breathing ...
Scientists have managed to make death even scarier. According to a team of scientists in New York, the human brain is still very active after death, which means there's a chance you could actually ...