Neurostimulation for Patients in Vegetative Status

Abstract
Dorsal column stimulation has been used in four patients who were in a persistent vegetative state. There was improvement of the EEG in four patients and clinical improvement in three patients. Stimulation was for 12 hours per day at 100 Hz, 5 to 8 volts, and with a pulse width of 0.12 msec. The mechanism of improvement may involve changes in cerebral blood flow.

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