Medtronic DBS Mode D'emploi page 18

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Manipulation may cause device inversion, making a rechargeable neurostimulator
impossible to charge.
Patient activities/environmental precautions - Patients should exercise reasonable
caution in avoidance of devices that generate a strong electric or magnetic field. Close
proximity to high levels of electromagnetic interference (EMI) may cause a
neurostimulator to switch on or off. The system also may unexpectedly cease to function.
For these reasons, the patient should be advised about any activities that would be
potentially unsafe if their symptoms unexpectedly return. For additional information about
devices that generate electromagnetic interference, call Medtronic. Refer to the contacts
listed at the end of this manual.
Scuba diving or hyperbaric chambers - Patients should not dive below 10 meters
(33 feet) of water or enter hyperbaric chambers above 2.0 atmospheres absolute (ATA).
Pressures below 10 meters (33 feet) of water (or above 2.0 ATA) could damage the
neurostimulation system. Before diving or using a hyperbaric chamber, patients should
discuss the effects of high pressure with their physician.
Skydiving, skiing, or hiking in the mountains - High altitudes should not affect the
neurostimulator, however, the patient should consider the movements involved in any
planned activity and take precaution to avoid putting undue stress on the implanted
system. Patients should be aware that during skydiving, the sudden jerking that occurs
when the parachute opens may cause lead dislodgement or fractures, which may require
surgery to repair or replace the lead.
Hospital or medical environment
Before undergoing any medical procedure, patients should always inform any health care
personnel that they have an implanted neurostimulation system. There is potential for an
interaction between the neurostimulation system and equipment used for the procedure—
even when both are working properly.
Most routine diagnostic procedures, such as fluoroscopy and x-rays, are not expected to
affect system operation. However, because of higher energy levels, sources such as
transmitting antennas found on various diagnostic and therapeutic equipment may
interfere with the DBS System.
See "Appendix A: Electromagnetic interference (EMI) and mechanical interference" on
page 20 for more information on electromagnetic interference.
In order to minimize the effects of EMI for some medical procedures, it is recommended
to turn off the neurostimulator during the procedure. The clinician ordering the procedure
should contact the implanting clinician or prescribing clinician to determine if it is
appropriate to turn off the neurostimulator based on the patient's underlying medical
condition.
Implanting or prescribing clinicians should also explain the following to their patients:
▪
Whether or not it is safe to have their neurostimulator turned off
▪
What effects patients may experience when their neurostimulator is turned off and
turned back on again
▪
Whether or not patients should contact them before turning their neurostimulator off
Effect on electrocardiograms (ECGs) - Ensure the neurostimulator is programmed off
prior to initiating an ECG. If the neurostimulator is on during an ECG, the ECG recording
Information for prescribers 2017-05-01 English 15