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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.
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 ...
However, each of these criteria fails to fit a substantial proportion of patients, and there is no single test or feature which is diagnostic of Bickerstaff brainstem encephalitis. It is, therefore, possible that a proportion of cases are due to other causes, such as infection or lymphoma, but remain undiagnosed. It is also possible that there ...
Branches of the basilar and PCA supply the occipital lobe, brain stem, and the cerebellum. [41] Ischemia is the loss of blood flow to the focal region of the brain. This produces heterogeneous areas of ischemia at the affected vascular region, furthermore, blood flow is limited to a residual flow.
Cerebrospinal fluid is produced by the choroid plexus in the ventricles of the brain and contained by the dura and arachnoid layers of the meninges. [23] [42] [64] The brain floats in CSF, which also transports nutrients to the brain and spinal cord. As holes form in the spinal dura mater, CSF leaks out into the surrounding space.
Diffuse midline glioma, H3 K27-altered (DMG) is a fatal tumour that arises in midline structures of the brain, most commonly the brainstem, thalamus and spinal cord.When located in the pons it is also known as diffuse intrinsic pontine glioma (DIPG).
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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 ...