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Kernohan's notch is a cerebral peduncle indentation associated with some forms of transtentorial herniation (uncal herniation). [1] [2] It is a secondary condition caused by a primary injury on the opposite hemisphere of the brain. [3]
Treatment involves removal of the etiologic mass and decompressive craniectomy. Brain herniation can cause severe disability or death. In fact, when herniation is visible on a CT scan, the prognosis for a meaningful recovery of neurological function is poor. [2]
This is called herniation and will often cause an enlarged pupil on the affected side, due to pressure on the oculomotor nerve. Tentorial herniation is a serious symptom, especially since the brainstem is likely to be compressed as well if the intracranial pressure rises further. A common type of herniation is uncal herniation.
Neurosurgery or neurological surgery, known in common parlance as brain surgery, is the medical specialty that focuses on the surgical treatment or rehabilitation of disorders which affect any portion of the nervous system including the brain, spinal cord, peripheral nervous system, and cerebrovascular system. [1]
Treatment involves replacing or flushing the shunt to address the cause of the obstruction and restore flow through the catheter. [ 66 ] The rate of initial shunt infection ranges from 3.6 to 12.6% [ 9 ] The signs and symptoms of shunt infection are variable, but the most common include headache, nausea, fever, swelling, and lethargy.
[42] [58] Women are three times more likely than men to have a congenital Chiari malformation. [59] Type II malformations are more prevalent in people of Celtic descent. [58] A study using upright MRI found cerebellar tonsillar ectopia in 23% of adults with headache from motor-vehicle-accident head trauma.
Pelicans announce that forward Herb Jones has been diagnosed with a posterior labrum tear in his right shoulder. An MRI taken yesterday confirmed the injury.
Intracranial hypertension (IH), also called increased ICP (IICP) or raised intracranial pressure (RICP), refers to elevated pressure in the cranium. 20–25 mmHg is the upper limit of normal at which treatment is necessary, though it is common to use 15 mmHg as the threshold for beginning treatment.
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