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Radiofrequency
technique :
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- Treatment Guideline
for High frequency induced Thermo ablation
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Option
1
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Power-Setting(Watts)
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Duration(minutes)
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Observation
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Start
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40
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1
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Patient
doesn't feel pain and Impedance is steadily lower than 400 Ohms
(max. 4 LED on the display)
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Second
step
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50
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10
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Patient
doesn't feel pain and Impedance is steadily lower than 400 Ohms
(max. 4 LED on the display)
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Third
step
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Reposition
of the needle
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Option
2
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Power-Setting(Watts)
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Duration(minutes)
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Observation
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Start
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40
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1
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IF
Patient feels pain and / or Impedance is steadily higher than 500
Ohms (5 - 10 LED on the display) THEN STOP
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Second
step
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Reposition
of the needle
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Option
3
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Power-Setting(Watts)
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Duration(minutes)
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Observation
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Start
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40
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1
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Patient
doesn't feel pain and Impedance isn't steadily higher than 400 Ohms
(max. 4 LED on the display)
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Second
step
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50
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10
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IF
Patient feels pain and / or Impedance is steadily higher than 500
Ohms (5 - 10 LED on the display) THEN STOP
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Third
step
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40
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10
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Patient
doesn't feel pain and Impedance isn't steadily higher than 400 Ohms
(max. 4 LED on the display)
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Fourth
step
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Reposition
of the needle
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Option
4
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Power-Setting(Watts)
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Duration(minutes)
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Observation
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Start
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40
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1
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Patient
doesn't feel pain and Impedance isn't steadily higher than 400 Ohms
(max. 4 LED on the display)
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Second
step
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50
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10
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IF
Patient feels pain and / or Impedance is steadily higher than 500
Ohms (5 - 10 LED on the display) THEN STOP
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Third
step
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40
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10
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IF
Patient feels pain and / or Impedance is steadily higher than 500
Ohms (5 - 10 LED on the display) THEN STOP
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Fourth
step
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Reposition
of the needle
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- Needle Retraction
after Treatment: we use a 25 Watts setting and retract the needle-applicator
within 20 - 30 sec. all along the track (5 mm/sec). We switch off the
flow during the coagulation.
- We do not coagulate
directly the capsular region
- Grounding Pads,
Neutral Electrodes: for applications up to 45 Watts we use one pad (as
close as possible to the needle). For applications from 50 to 60 Watts
we use two pads (as close as possible to the needle).
- Multiple Punctures:
In the case several punctures for one tumor are necessary, the distance
between two or more punctures should be approximately 20 mm.
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