Hidden consciousness detected with EEG predicts recovery of unresponsivepatients ColumbiaMed TheLancet
The findings suggest brainwave analysis has the potential to completely change how unresponsive patients with acute brain injury are managed.
"But in some rare cases, unresponsive patients do eventually regain consciousness and may make meaningful progress toward recovering many day-to-day functions many months later," says Claassen, who also is an associate attending neurologist at NewYork-Presbyterian/Columbia University Irving Medical Center."We just don't have a reliable way to predict who those patients are.
"We found that covert consciousness is an independent predictor of recovery, stronger than any other established factor we looked at, including the patient's age, initial Glasgow Coma Scale score , or the cause of the brain injury," Claassen says."In the future, cognitive-motor dissociation may be another factor to consider when assessing a patient's prognosis."
The researchers are investigating the underlying mechanisms of covert consciousness to better understand why a patient who hasactivity in response to different motor commands and is not paralyzed cannot physically act on these commands. They also are interested in studying how degrees of covert consciousness are linked to clinical outcomes.
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