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The Neurological Pupil index, or NPi, is an algorithm developed by NeurOptics, Inc., that removes subjectivity from the pupillary evaluation. A patient's pupil measurement (including variables such as size, latency, constriction velocity, dilation velocity, etc.) is obtained using a pupillometer, and the measurement is compared against a normative model of pupil reaction to light and ...
The American Journal of Critical Care revealed that critical care and neurosurgical nurses consistently underestimated pupil size, were unable to identify anisocoria, and incorrectly assessed pupil reactivity (sPLR). It concluded that automated pupillometry is a necessary tool for accuracy and consistency, and that it might facilitate earlier ...
A mydriatic pupil will remain excessively large even in a bright environment. The excitation of the radial fibres of the iris which increases the pupillary aperture is referred to as a mydriasis. More generally, mydriasis also refers to the natural dilation of pupils, for instance in low light conditions or under sympathetic stimulation.
It was the brain injury that was the most critical. After 41 days in the trauma center, he was moved to extended care and, shortly after, transferred to Atlanta's Shepherd Center, a hospital ...
Hutchinson's pupil is a clinical sign in which the pupil on the side of an intracranial mass lesion is dilated and unreactive to light, [1] due to compression of the oculomotor nerve on that side. The sign is named after Sir Jonathan Hutchinson. These can be due to concussion injury to the brain and is associated with subdural haemorrhage and ...
Adie's pupil is supersensitive to ACh so a muscarinic agonist (e.g. pilocarpine) whose dose would not be able to cause pupillary constriction in a normal patient, would cause it in a patient with Adie's Syndrome. The circuitry for the pupillary constriction does not descend below the upper midbrain, henceforth impaired pupillary constriction is ...
A six-year-old boy died after suffering a head injury in a fall, prompting heartfelt tributes from the head teacher at his school. Mohammed Yasin Uddin, who went to Marlborough Primary School in ...
After sustaining a head injury in yesterday’s game, Grant DuBose remained at a local Houston hospital for evaluation overnight. He has movement in all extremities and initial tests have revealed ...