Search results
Results from the WOW.Com Content Network
Cerebral edema is a potentially life-threatening complication of severely decreased sodium ion concentration in the blood (hyponatremia). [17] Ionic brain edema can also occur around the sites of brain hemorrhages, infarcts, or contusions due to a local plasma osmolality pressure gradient when compared to the high osmolality in the affected tissue.
Of those who have residual symptoms after PRES, this is attributable largely to hemorrhage. [1] [4] Non-resolution of MRI abnormalities has been linked with poorer outcomes. [4] The presence of brain hemorrhage and cytotoxic edema (brain edema with concomittant brain tissue damage) is also associated with a poor prognosis. [2]
An increase in pressure, most commonly due to head injury leading to intracranial hematoma or cerebral edema, can crush brain tissue, shift brain structures, contribute to hydrocephalus, cause brain herniation, and restrict blood supply to the brain. [13] It is a cause of reflex bradycardia. [14]
An intraparenchymal bleed (bottom arrow) with surrounding edema (top arrow) Pediatric stroke is a stroke that occurs in children or adolescents. Stroke affects an estimated 2.5 to 13 per 100,000 children annually. [1] The signs and symptoms of stroke in children, infants, and newborns are different from those in adults.
According to the over-regulation conception, brain vessels spasm in response to acute hypertension, which results in cerebral ischemia and cytotoxic edema. [14] [15] According to the autoregulation breakthrough conception, cerebral arterioles are forced to dilate, leading to vasogenic edema. [12] Cerebral edema can be generalized or focal ...
Malignant post traumatic cerebral swelling can develop unexpectedly in stable patients after an injury, as can post-traumatic seizures. Recovery in children with neurologic deficits will vary. Children with neurologic deficits who improve daily are more likely to recover, while those who are vegetative for months are less likely to improve.
Clinical signs of cerebral edema, such as focal neurological deficits, papilledema [5] and decreased level of consciousness, if temporally associated with recent hemodialysis, suggest the diagnosis. A computed tomography of the head is typically done to rule-out other intracranial causes.
The symptoms of an episode of diabetic ketoacidosis usually evolve over a period of about 24 hours. Predominant symptoms are nausea and vomiting, pronounced thirst, excessive urine production and abdominal pain that may be severe. [13] [14] In severe DKA, breathing becomes rapid and of a deep, gasping character, called "Kussmaul breathing".