VNS Therapy SENTIVA M3000 Programmer Technical Manual page 76

HIGH/LOW LEAD IMPEDANCE OR LOW OUTPUT CURRENT AT
FOLLOW-UP VISIT
Possible causes for high or low lead impedance or low output current at
follow-up visits for the model 1000 generator include the following:
• Lead discontinuity
• Lead disconnected from generator
• Fibrosis between nerve and electrode
• Electrode detachment from nerve
• Defective generator
• Short-circuit condition within the lead
Error Message
"A LOW Lead Impedance
has been detected..."
Lead Impedance "LOW"
System Diagnostics
Values
Lead Impedance
"HIGH"
Output Current
"OK"
Possible Causes:
• Lead discontinuity
• Lead disconnection
from the generator
• Fibrosis between the
nerve and electrode
• Electrode
detachment from
the nerve
• Defective generator
"A HIGH Lead Impedance
has been detected..."
Lead Impedance "HIGH"
• Perform a Systems Diagnostics
• Record results
Lead Impedance "OK"
Lead Impedance
"HIGH"
Output Current
"LOW"
Possible Causes:
• Lead discontinuity
• Lead disconnection
from the generator
• Fibrosis between the
nerve and electrode
• Electrode
detachment from
the nerve
• Defective generator
Contact LivaNova Technical Support
Error Message
Output Current "OK"
Lead Impedance
"OK"
Output Current
"LOW"
Possible Causes:
• Increased
impedance in the
system
Error Message
"Programmed current
is possibly not being
delivered..."
Output Current "LOW"
Generator is delivering
stimulation as intended
Lead Impedance
"LOW"
Output Current
"OK"
Possible Causes:
• Short-circuit
condition within
the lead
• Defective generator
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