Stroke Survivor Walks Again After Doctors Inject Stem Cells Directly into Brain


A surgical procedure that involves drilling holes and injecting stem cells into stroke patients’ brains seems to have contributed to a wheelchair-bound stroke patient regaining the ability to walk. Despite the major recovery exhibited by patients, further study must be made to investigate the true impact.

Researchers from Stanford University were “stunned” at the positive results they obtained after injecting stem cells directly into stroke patients’ brains. The discovery has created a talking point in the neuroscience community, causing researchers to re-visit and re-evaluate the notion that brain damage is permanent and irreversible.


18 stroke patients that were at the six-month mark—the ‘plateau stages’ of their recovery, which is where, typically, no foreseeable improvements in their conditions can occur—were selected for the study.

Patients at this stage are impaired when it comes to moving their arms and legs. As such, they are usually taken out of therapy, as their brain circuits are believed to be damaged beyond repair.

Credit: Washington Post
Credit: Washington Post

Surgeons drilled holes into several locations of each patient’s skull and injected the stem cellsinto them. The procedure required patients to be operated on while they were conscious. Despite the seemingly bluntness of the procedure, surgeons say that the method is the simplest as far as brain surgery is concerned.

Patients were even sent home on the same day as the surgery.


Headaches, nausea, and vomiting were some of the side-effects experienced by the patients after the procedure. Tests that measured each of the patients’ speech, vision, and motor ability were then conducted one, six, and twelve months after the surgery.

Gary Steinberg, lead author and chairperson of Neurosurgery at Stanford, was surprised to see that seven out of the 18 patients that underwent the treatment showed great improvement. Recovery for these seven patients, he says, was not minimal. He mentions a 71-year-old wheelchair-bound patient that was able to walk again.

Despite the positive results of the procedure, Sean Savits, a professor of Neurosurgery at the University of Texas, notes that much more has to be done in order to confirm the results of the surgery. Further research is necessary in order to fully determine the true effect of the stem cells in stimulating the changes, and he notes that it is possible that the procedure induced a placebo effect.

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