One In Four Brain Injury Patients Who Appear Unresponsive Respond Covertly

Back in May, I wrote the blog “New Study: Brain-injured patients who died after life support ended may have recovered” about a 7 1/2 year study of 1392 traumatic brain injury patients in ICU at 18 US trauma centers.

The researchers designed a mathematical model to calculate the likelihood that life-sustaining treatment would be discontinued “based on demographic, socioeconomic factor and injury characteristics” and then “paired patients continuing on life-sustaining treatment to individuals with similar moded scores but for whom life-sustaining treatment was stopped.”

They found that of the survivors who did not have life-sustaining treatment withdrawn, “more than 40% recovered at least some independence.” (Emphasis added)

This led one researcher to conclude that:

““Predicting who will recover following severe traumatic brain injury, and to what degree, can be challenging. Yet, families are often asked to make decisions about continuing or withdrawing life support, such as mechanical breathing, within just 72 hours of the injury,” Bodien said.

“This decision is based largely on whether the clinical team believes that recovery is possible,” she added. “It is unknown whether some people who died because life support was discontinued could have survived and recovered had life support been continued.” (All emphasis added)

NEW STUDY

Now a newer study, published in August, states that one in Four Brain Injury Patients Who Appear Unresponsive Respond Covertly | MedPage Today, finding that functional MRI and EEG tests can detect awareness in coma or vegetative states.

The authors explain that:

“Cognitive-motor dissociation — a phenomenon that occurs when patients who appear unresponsive perform cognitive tasks that can be detected on functional MRI (fMRI) or electroencephalography (EEG) — occurred in one in four people with severe brain injury, a prospective cohort study found.”

The study evaluated 241 unresponsive patients with brain injury who were given verbal commands, such as to imagine playing tennis or opening and closing their hands.

Of these, 60 patients (25%) repeatedly showed brain activation on fMRI or EEG indicating they were covertly following instructions, reported Nicholas Schiff, MD, of Weill Cornell Medicine in New York City, and co-authors in the 

Cognitive-motor dissociation was associated with younger age, longer time since injury, and brain trauma as an etiologic factor. In total, 11 patients with cognitive-motor dissociation were assessed with fMRI only, 13 were assessed with EEG only, and 36 with both techniques.

“This research shows that a substantial fraction of apparently unresponsive, severely brain-injured persons are aware and can engage in sustained cognitive activity,” Schiff told MedPage Today. These findings importantly point to the need to establish infrastructure to evaluate patients and to begin efforts to test possible therapies to help them.” (All emphasis added)

CONCLUSION

I have worked with brain-injured patients for decades both as a nurse and as a volunteer and I personally saw many amazing recoveries or improvements despite dire predictions and/or recommendations of life support removal.

One of the most amazing cases was a woman with disabilities whose husband wanted to remove life support as the doctors recommended.

As she personally told me, she frantically tried to move her hands to protest but her gestures were seen as seizures and she was given sedatives.

She persisted until finally, one nurse said she might be trying to tell us something and gave her a paper and pencil.

The patient wrote d-i-v-o-r-c-e.

She not only lived but became active in the disability community fighting assisted suicide!