It was reported that the patient was experiencing an increase in depression due to the vns being ¿non-functional¿ for the past three years.It was clarified that the vns was thought to be non-functional due to the increase in depression and the patient not perceiving stimulation.It was stated that the patient would perceive stimulation for a while after the vns was interrogated, programmed, or had diagnostics performed, but after a couple of days, the patient would no longer perceive stimulation.Follow up with the physician revealed that the vns was checked the previous year and no problems were identified with the device functionality.The surgeon had offered to replace the vns, but the patient declined replacement.The patient was seen again recently and the diagnostics were within normal limits.It was noted that the patient had pretty severe depression and dementia.The dementia was not attributed to the vns.No additional relevant information has been received to date.
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