Estella Pulse Generators - BIOTRONIK USA - News

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56 Estella Pulse Generators Technical ManualIf there is no PMT detected by the algorithm, both the PVARP and PVARPafter PVC is reduced by 50ms every 7 days, but no less than the minimumvalue of 175ms.7.5.3 AV Delay7.5.3.1 Dynamic AV DelayThe AV delay defines the interval between an atrial paced or sensedevent and the ventricular pacing pulse. If the pulse generator isprogrammed to a dual chamber sensing mode, an intrinsic ventricularevent falling within the AV delay will inhibit the ventricular pacing pulse.If not contraindicated, a longer AV delay can be selected to increase theprobability of ventricular output pulse inhibition. Short AV delays areavailable for testing purposes or if ventricular pre-excitation is desired(i.e., hemodynamic considerations).Dynamic AV Delay provides independent selection of AV Delays fromfive rate ranges at pre-set AV Delay values. In addition, the AV Delayafter atrial pace events can be differentiated from the AV interval afteratrial sense events for dual chamber pacing modes. Dynamic AV Delayis programmable within the following atrial rate ranges at the valuesspecified in Table 16.Table 16: Dynamic AV delay settingsRate Rangesbelow 70 bpm70—90 bpm91—110 bpm111—130 bpmabove 130 bpmLOW180 ms170 ms160 ms150 ms140 msIn addition the Dynamic AV Delays may be programmed individually foreach rate range or a fixed AV delay may be programmed for all ranges.The AV Delay feature includes an AV shortening option (sensedcompensation) for dual chamber pacing modes. The sense compensationcan be programmed to OFF and –10 … (-5) … -120 ms. When selected,the AV delay after an atrial sense event is the AV delay after an atrialpace minus the sense compensation.The Dynamic AV Delay is intended to mimic the physiologic,catecholamine-induced shortening of the AV Delay with increasing rate.
7.5.3.2 AV HysteresisEstella Pulse Generators Technical Manual 57AV Hysteresis allows a user-programmable change in AV delay that isdesigned to encourage normal conduction of intrinsic signals from theatrium into the ventricles. An AV hysteresis interval can be programmedto low, middle, or high setting as defined in Table 17 to promote intrinsicAV conduction. With AV hysteresis enabled, the AV delay is extendedby a defined time value after sensing a ventricular event. The long AVinterval is used as long as intrinsic ventricular activity is detected. Theprogrammed short AV delay interval resumes after a ventricular pacedevent.Table 17: AV Hysteresis SettingsAV Setting Low Medium High15ms 85ms 125ms 165ms50ms 120ms 160ms 200ms75ms 145ms 185ms 225ms100ms 170ms 210ms 250ms120ms 190ms 230ms 270ms130ms 200ms 240ms 280ms140ms 210ms 250ms 290ms150ms 220ms 260ms 300ms160ms 230ms 270ms 310ms170ms 240ms 280ms 320ms180ms 250ms 290ms 330ms190ms 260ms 300ms 340ms200ms 270ms 310ms 350ms225ms 295ms 335ms 375ms250ms 320ms 360ms 400ms300ms 370ms 410ms 450ms350ms 420ms 450ms 450ms7.5.3.3 AV Repetitive HysteresisWith AV Repetitive Hysteresis, the AV delay is extended by a definedhysteresis value after sensing an intrinsic ventricular event. Whena ventricular stimulated event occurs, a long AV delay is used for theprogrammed number of cycles. (1 … 10). If an intrinsic rhythm occurs
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BIOTRONIKEstella Pulse GeneratorsTe
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ContentsEstella Pulse Generators Te
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Estella Pulse Generators Technical
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1. Device DescriptionEstella Pulse
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2. IndicationsEstella Pulse Generat
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Page 15 and 16: 4. Warnings and PrecautionsEstella
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Page 73 and 74: Table 20: Rate DecreaseDecrease inR
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11. Lead ConnectionEstella Pulse Ge
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12. Follow-up Procedures12.1 Genera
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Table 33: Nominal Pulse Generator L
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14. ExplantationEstella Pulse Gener
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AV Repetitive Hysteresis (Dual cham
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Periodic TransmissionOff, 30, 60, 9
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ParameterEstella Pulse Generators T
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16. Order InformationPulse Generato
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The AAI mode is conditionally indic
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Manufactured by:BIOTRONIK SE & Co.
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