CPC A61N 1/3614 (2017.08) [A61N 1/0534 (2013.01)] | 20 Claims |
1. A method of determining a cause of a decline in therapeutic efficacy of deep brain stimulation (DBS) in a patient having an electrode lead implanted in their brain, the electrode lead comprising a plurality of electrodes, the method comprising:
providing stimulation to the patient's brain using a first one or more of the plurality of electrodes implanted in the patient's brain, wherein the stimulation is configured to provide therapy to the patient,
receiving an indication of a decline in therapeutic efficacy of the stimulation,
determining impedances at one or more of the plurality of electrodes,
sensing evoked potentials evoked by the stimulation using one or more of the plurality of electrodes, and
determining a cause of the decline in therapeutic efficacy based on both the impedances and the evoked potentials.
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