This involves placement of catheters in the epidural space (outside the Dura which is the sac that surrounds the spinal cord and spinal fluid). A tiny electric current is delivered through the catheter which interrupts the pain signals on their way to the brain. Patients experience tingling sensation instead of pain at the targeted area. Candidates for the procedure undergo a trial that lasts a few days. If the trial is successful a permanent system is implanted a few weeks later.
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