User Manual

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Lumax Technical Manual 13
Diathermy - Diathermy therapy is not recommended for
ICD/CRT-D patients due to possible heating effects of the pulse
generator and at the implant site. If diathermy therapy must be
used, it should not be applied in the immediate vicinity of the
pulse generator or lead system.
Electrocautery - Electrosurgical cautery could induce ventricular
arrhythmias and/or fibrillation, or may cause device malfunction or
damage. If use of electrocautery is necessary, the current path
and ground plate should be kept as far away from the pulse
generator and leads as possible (at least 6 inches (15 cm)).
External Defibrillation - The device is protected against energy
normally encountered from external defibrillation. However, any
implanted device may be damaged by external defibrillation
procedures. In addition, external defibrillation may also result in
permanent myocardial damage at the electrode-tissue interface as
well as temporary or permanent elevated pacing thresholds. When
possible, observe the following precautions:
Position the adhesive electrodes or defibrillation paddles
of the external defibrillator anterior-posterior or along a
line perpendicular to the axis formed by the implanted
device and the heart.
Set the energy to a level not higher than is required to
achieve defibrillation.
Place the paddles as far as possible away from the
implanted device and lead system.
After delivery of an external defibrillation shock,
interrogate the ICD/CRT-D to confirm device status and
proper function.
Lithotripsy - Lithotripsy may damage the ICD/CRT-D. If
lithotripsy must be used, avoid focusing near the ICD/CRT-D
implant site.
MRI (Magnetic Resonance Imaging) - Do not expose a patient
to MRI device scanning. Strong magnetic fields may damage the
device and cause injury to the patient.
Radiation - High radiation sources such as cobalt 60 or gamma
radiation should not be directed at the pulse generator. If a patient
requires radiation therapy in the vicinity of the pulse generator,
place lead shielding over the device to prevent radiation damage
and confirm its function after treatment.