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Even in emergency situations, when a head injury is minor as determined by a physician's evaluation and based on established guidelines, CT of the head should be avoided for adults and delayed pending clinical observation in the emergency department for children. [3] Many people visit emergency departments for minor head injuries.
Brain herniation is associated with poor prognoses. [7] For spontaneous intracerebral hemorrhage seen on CT scan, the death rate is 34–50% by 30 days after the injury, [22] and half of the deaths occur in the first 2 days. [51]
Cerebral infarction, also known as an ischemic stroke, is the pathologic process that results in an area of necrotic tissue in the brain (cerebral infarct). [1] In mid to high income countries, a stroke is the main reason for disability among people and the 2nd cause of death. [2]
Stroke affecting large portions of the brain can cause significant brain swelling with secondary brain injury in surrounding tissue. This phenomenon is mainly encountered in stroke affecting brain tissue dependent upon the middle cerebral artery for blood supply and is also called "malignant cerebral infarction" because it carries a dismal ...
CT scans can expose patients to levels of radiation 100-500 times higher than traditional x-rays, with higher radiation doses producing better resolution imaging. [37] While easy to use, increases in CT scan use, especially in asymptomatic patients, is a topic of concern since patients are exposed to significantly high levels of radiation. [36]
The “2024 Guideline for the Primary Prevention of Stroke,” published in the journal Stroke and replacing the 2014 version, focuses on identifying and managing risk factors—particularly for ...
did not experience a traumatic brain injury; have a Glasgow Coma Scale score of lower than 13, are under the age of 16, has a bleeding disorder or is using warfarin, and/or; has a visible open skull fracture. [4] Under the CCTHR, patients with minor head injuries should only receive CT scans if one or more of the following criteria are met: [4]
Symptoms may include severe headache, visual symptoms, any of the symptoms of stroke such as weakness of the face and limbs on one side of the body, and seizures, which occur in around 40% of patients. [2] The diagnosis is usually by computed tomography (CT scan) or magnetic resonance imaging (MRI) to demonstrate obstruction of the venous ...