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Patient Cannot Feel Stimulation
• Possible causes:
- Patient has become accustomed to the programmed setting
- Generator battery at end of service (EOS)
- “High” lead impedance, defective, or disabled generator
- Short-circuit condition within the lead
• For more detailed information, consult the Troubleshooting section of the
VNS Therapy® System Physician’s Manual
“Cannot feel stimulation”
Interrogate the generator
For possible causes, see
“Troubleshooting” in the
programming system
Physician’s Manual
Record the CAUSE
“The generator is currently disabled due to
[CAUSE]. The generator is NOT supplying
stimulation.”
Note: If the CAUSE is “a wand reset” and the
reset was intended, continue with the session
• Perform a System Diagnostics
• Record results
Lead Impedance Result
Output Current Result
The generator is able to deliver
programmed output current and the
VNS system is working properly
Probable Diagnosis: The patient has
grown accustomed to stimulation
but is still receiving the programmed
therapy
Contact Clinical Technical Support
The generator cannot deliver programmed
output. Consider lowering output current
while increasing pulse width
YesNo
“High” or
“Low”
“Ok”
“Ok” “Low”
“Disabled Message?”
Patient Report
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