User's Manual

US-ENGLISH – 9
Home appliances: Home appliances that are in good working order
and properly grounded do not usually produce enough EMI to interfere
with defibrillator operation. There are reports of device disturbances
caused by electric hand tools or electric razors used directly over the
device implant site.
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