en • English
13
Magnet application by patients
If patients are performing their own magnet application, the synchronous magnet
response has to have been programmed. Patients should also know the following:
• When may the magnet be used?
In cases of severe dizziness and indisposition.
• How long is the magnet placed on the pacemaker?
1 to 2 s.
• What happens when the magnet is applied?
The IEGM of the last 10 seconds is stored.
• What has to happen after magnet application?
The patient has to contact the physician for a follow-up.
Replacement Indications
Pacemaker operational status indications
The time span from the beginning of service (BOS) to elective replacement indication
(ERI) is determined by, among others, the following:
• Battery capacity
• Lead impedance
• Pacing program
• Pacing to inhibition ratio
• Pacemaker circuit properties
The following are the defined pacemaker operational statuses:
ERI activation
ERI detection is automatically activated after the following events:
• Successful auto-initialization
• Storage for longer than 24 months
ERI display
ERI is displayed as follows:
• On the programmer after interrogation of the pacemaker
• By a defined decrease in the basic rate as well as the magnet rate
Change of the mode with ERI
From triple-chamber modes, the pacemaker switches to dual-chamber pacing. This
replacement depends on the programmed mode and is displayed on the programmer.
Deactivated functions with ERI
The following functions are deactivated:
• Atrial pacing
• Night program
• Rate adaptation
• Atrial and ventricular capture control
• Rate fading
• Atrial overdrive pacing
• IEGM recordings
• Statistics
• Home Monitoring
• Rate hysteresis
• Ventricular pacing suppression
Rate decrease
The decrease of basic rate and magnet rate is defined as follows:
• In the following modes, the pacing rate decreases by 11%:
DDD(R); DDT(R); DOO(R); VDD(R); VDI(R); VVI(R); VVT(R); AAI(R); AAT(R); AOO(R)
• In the modes DDI(R) and DVI(R), only the VA interval is extended by 11%. This
reduces the pacing rate by 4.5 to 11% depending on the configured AV delay.
BOS
Beginning of Service
Battery is in good condition; normal follow-up.
ERI
Elective Replacement
Indication
The replacement time has been reached.
The pacemaker must be replaced.
EOS
End of Service
End of service time with regular pacemaker activity.
387513--D_GA_Evia-HF-ProMRI_mul.book Page 13 Thursday, September 12, 2013 3:34 PM
