User's Manual

8 – US-ENGLISH
CAUTION: Do not tap sharply on the ICD can after implant, because the
ICD's sensing circuits can detect this as P-waves or R-waves, and such
oversensing could result in inappropriate pacing, inhibition, or therapy.
Normal activities after implant do not result in such oversensing.
4.1. RISKS RELATED TO MEDICAL ENVIRONMENT
It is advisable to carefully monitor defibrillator operation prior to and
after any medical treatment during which an electrical current from an
external source passes through the patient's body.
Magnetic Resonance Imaging: MRI is strictly contraindicated in
cardiac defibrillator patients.
Radiofrequency ablation: A radio frequency ablation procedure in a
patient with a generator may cause device malfunction or damage.
RF ablation risks may be minimized by: 1. Programming Shock
Therapy and ATP to OFF. 2. Avoiding direct contact between the
ablation catheter and the implanted lead or generator. 3. Positioning
the ground, placing it so that the current pathway does not pass
through or near the device, i.e. place the ground plate under the
patient’s buttocks or legs. 4. Having external defibrillation equipment
available.
Electrocautery or diathermy device: Diathermy and electrocautery
equipment should not be used. If such devices must be used:
1. Keep the current path and ground plate as far away from the
device and the leads as possible (a minimum of 15 cm [six inches]).
2. Before procedure, deactivate ATP and shock therapies. 3. During
the procedure, keep the electrocautery device as far as possible from
the cardiac defibrillator. Set it at minimum intensity. Use it briefly.
4. After the procedure, check for proper implant function. The device
should never be exposed directly to the diathermy source.