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Researchers Discover That Comatose Patients Have Awareness

Study reveals that people in a coma maintain awareness, even if they do not respond. Researchers from several countries analyze how this could transform their medical care....
Author: Patricia Alegsa
05-09-2024 15:57







  1. The Hidden Awareness: A Breakthrough in the Study of Brain Injuries
  2. Key Findings of the Study
  3. Implications for Clinical Care
  4. The Future of Research in Brain Injuries



The Hidden Awareness: A Breakthrough in the Study of Brain Injuries



It is estimated that between 54 and 60 million people suffer traumatic brain injuries each year, which can result in hospitalization or, in the worst cases, death.

Many of these cases lead to permanent disabilities, highlighting the importance of research in this field.

Recently, a study conducted by researchers from the United States, United Kingdom, Canada, China, and other countries has revealed a surprising finding: the existence of "hidden awareness" in patients with brain injuries.

This study, published in The New England Journal of Medicine, opens new possibilities for the care and rehabilitation of these patients.


Key Findings of the Study



The study, led by Nicholas Schiff from Cornell University, included 353 adults with disorders of consciousness.

Through functional magnetic resonance imaging and electroencephalograms, it was discovered that approximately one in four patients who showed no observable responses to commands were, in fact, capable of performing cognitive tasks covertly.

This means that these patients, although they may appear unresponsive, can understand instructions and maintain attention.

Researcher Yelena Bodien, the lead author of the study, explains that this phenomenon, termed "cognitive-motor dissociation," shows that cognitive activity can be present even when motor responses are not.

This discovery raises important ethical and clinical questions about how to use this invisible cognitive ability to establish communication systems and improve recovery.


Implications for Clinical Care



The findings of this study have significant implications for the care of patients with brain injuries.

According to Dr. Ricardo Allegri, one of the keys to this work is that it could change the way stimulation and rehabilitation for these patients are scheduled.

Instead of solely relying on responses to commands, healthcare professionals will need to consider cognitive activity that may not be observable.

Patients' families have reported that knowing about the existence of this cognitive-motor dissociation can radically change the way the clinical team interacts with their loved ones.

Care becomes more subtle, and more attention is paid to behaviors that may be voluntarily controlled.

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The Future of Research in Brain Injuries




Despite the promising results of the study, there are limitations. The lack of standardization in the tests conducted at various research centers has generated variability in the data.

To advance in this field, it is crucial to validate the tools used and develop systematic methods to assess non-responsive patients.

The study suggests that cognitive-motor dissociation may be present in up to 25% of patients, or even more, highlighting the need for more thorough evaluation.

As research progresses, it is essential for the medical community to adapt to these new findings to improve the care and rehabilitation of those suffering from brain injuries.

In conclusion, the discovery of "hidden awareness" in patients with brain injuries represents a significant advancement in neurology and clinical care, opening the door to new opportunities for rehabilitation and support for these patients and their families.



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