BIOTRONIK Evity 6 Manuel Technique page 16

The following are the defined pacemaker operational statuses:
• BOS: Beginning of Service: > 90%
• ERI: Elective Replacement Indication (i.e., RRT: Recommended Replacement Time)
• EOS: End of Service
ERI activation
ERI detection is automatically activated after the following events:
• Successful auto-initialization
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
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; D00(R); VDD(R); VDI(R); VVI(R); VVT; AAI(R); AAT; A00(R)
• In the modes DDI(R) and DVI(R), only the VA interval is extended by 11%. This
reduces the pacing rate by up to 11%, depending on the configured AV delay.
Change of the mode with ERI
This change depends on the mode which is set. It is displayed on the programmer.
• Single-chamber modes: VVI
• Dual-chamber modes: VDD
• Triple-chamber modes: Dual-chamber pacing, one biventricular setting is kept
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
en • English
• IEGM recordings
• Statistics
• Home Monitoring
• Rate hysteresis
• Ventricular pacing suppression
Magnet response at ERI
After reaching ERI, pacing is performed as follows after applying the magnet or
programming head:
Magnet Cycles 1 to 10
response
Automatic Asynchronous with 80 bpm
Asynchronous Asynchronous with 80 bpm
Synchronous Synchronous with basic rate
reduced by 11%
Expected service times after ERI
The information is based on the following:
• Lead impedance of 500 Ω or 600 Ω
• 100% pacing
• Interval from ERI to EOS for the single-chamber device in AAI(R)/VVI(R) mode, for
the dual and triple-chamber device in DDD(R) mode
• Standard program with both high and low pacing energy
• Data of the battery manufacturer (see the battery data)
110 bpm 30 bpm 70 bpm
4.6 V 0.2 V 2.5 V
1.5 ms 0.1 ms 0.4 ms
500 Ω 500 Ω 500 Ω
Mean value: 8 months —
Minimum value: 6 months Minimum value: 6 months
15
After 10th cycle
Synchronous with basic rate
reduced by 11%
Asynchronous with 80 bpm
Synchronous with basic rate
reduced by 11%
70 bpm 60 bpm 60 bpm
5.0 V 2.5 V 5 V
0.4 ms 0.4 ms 0.4 ms
500 Ω 600 Ω 600 Ω
—
Minimum value: 6 months