Axonics 2501 Handbuch Seite 33

Tined Lead Test Stimulation
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Define Thresholds
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When the tined lead is placed through the introducer sheath,
the CP provides test stimulation to help determine if the lead
electrodes are near the sacral nerve. This section explains how
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the CP is used to test and record the responses and response
thresholds for stimulation with each electrode of the tined lead.
Upon entering the Define Thresholds screen, the most proximal
electrode (E3) is selected by default. A different electrode can
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be selected by pressing that electrode on the CP screen. A gray
box is visible around each electrode until stimulation is delivered
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with the selected electrode ( 1 ). The box changes color
depending on the stimulation amplitude and the motor and
sensory responses evoked. When stimulation is at the minimum
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amplitude that evokes the desired physiological response (motor
and/or sensory), the color around the electrode indicates the
quality of that electrode:
Green
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amplitude and desired responses.
Yellow
•
stimulation amplitude and desired responses.
Red
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amplitude and/or an undesirable sensory response.
The threshold value of the selected electrode is updated each
time a new test stimulation occurs.
‐> Good placement based on relatively low stimulation
-> Acceptable placement based on moderate
-> Undesired placement based on high stimulation
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