The study represents the first successful demonstration of spinal cord stimulation. Read more at straitstimes.com.
NEW YORK - Ms Heather Rendulic was 23 when she suffered a stroke that disabled her left side. Ten years later, her left arm and hand remain so impaired that she cannot tie her shoes, type with two hands or cut her own food.
Still, she said: “We have to be cautious that we’re not offering hope to many people when I think we’re not there yet”. Each year, more than 12 million people worldwide and nearly 800,000 in the United States experience strokes, said Dr Karen Furie, the vice-chair of the American Stroke Association’s stroke brain health science subcommittee.
About three-quarters of stroke patients experience impairment, weakness or paralysis in their arms and hands, said Dr Elliot Roth, an attending physician at Shirley Ryan AbilityLab’s Brain Innovation Centre, who was not involved in the study. Researchers implanted strands of eight electrodes in two locations, corresponding to where neurosensory fibres from the arm and the hand enter the spinal cord.
Over four weeks, she was given increasingly challenging tasks, like gripping and moving a soup can. With stimulation, her left hand moved 14 small blocks over a barrier in a box, compared with six blocks without stimulation.
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