What question did this study set out to answer?

Determine whether utilizing low-threshold atrial leads combined with telemetry-guided output optimization significantly reduces battery current drain and extends projected pacemaker longevity.

November 1, 1998Pacing and Clinical Electrophysiology

Telemetry Guided Pacemaker Programming: Impact of Output Amplitude and the Use of Low Threshold Leads on Projected Pacemaker Longevity

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Why the study?

Does a low threshold atrial lead improve projected pacemaker longevity compared to a conventional lead in patients with dual chamber pacemakers?

Population

18 patients with a dual chamber pacing system (n=18, 9 per group)

Comparison

Low threshold screw-in atrial electrode with… vs Conventional active fixation atrial lead with…

Design

Cohort

Follow-up

18 months

Authors

BSBernhard SchwaabBayer (United States)GFG. FröhligKabul University HSHOLGER SCHWERDTUniversitätsklinikum des Saarlandes

Discussion

Member takes

Implication

Low-threshold leads may prolong projected pacemaker longevity; hypothesis-generating and requires randomized confirmation before practice change.

Key Points

Determine whether utilizing low-threshold atrial leads combined with telemetry-guided output optimization significantly reduces battery current drain and extends projected pacemaker longevity.
Prospective study comparing an atrial low-threshold screw-in lead (Medtronic 5078, n = 9) to a conventional active-fixation lead (Biotronik Y60BP, n = 9) paired with identical ventricular leads and pulse generators.
Assessed pacing charge thresholds and telemetric battery current drain at 18 months post-implantation, programming chronically to maintain a 2:1 charge safety margin.
All patients with low-threshold leads were successfully programmed to an atrial output of 1.0 V (0.42 ± 0.15 ms), whereas conventional lead patients required 2.0 V (0.52 ± 0.15 ms).
Mean optimized total battery current drain was significantly lower in the low-threshold group at 12.19 ± 0.63 µA versus 14.42 ± 0.32 µA in the conventional group (P < 0.001).
The lower current drain resulted in an 18.3% increase in projected pacemaker longevity, adding 17 months of service life (121 ± 4 months vs. 104 ± 2 months, P < 0.001).

Structured PICO

Does a low threshold atrial lead improve projected pacemaker longevity compared to a conventional lead in patients with dual chamber pacemakers?

Population

18 patients with a dual chamber pacing system (n=18, 9 per group)

Intervention

Low threshold screw-in atrial electrode (Medtronic 5078) with telemetry-guided output optimization

Comparator

Conventional active fixation atrial lead (Biotronik Y60BP) with telemetry-guided output optimization

Outcome

Projected pacemaker longevity and battery current drain at 18 months after implantationsurrogate

Using low threshold atrial leads and optimizing output parameters via telemetry significantly reduces battery current drain and prolongs projected pacemaker longevity.

Cite This Study

Schwaab et al. (1998) studied this question.

synapsesocial.com/papers/6a71a6eb3ce530166bc3268d https://doi.org/10.1111/j.1540-8159.1998.tb01123.x

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Implication

Low-threshold leads may prolong projected pacemaker longevity; hypothesis-generating and requires randomized confirmation before practice change.

Telemetry Guided Pacemaker Programming: Impact of Output Amplitude and the Use of Low Threshold Leads on Projected Pacemaker Longevity

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

Telemetry Guided Pacemaker Programming: Impact of Output Amplitude and the Use of Low Threshold Leads on Projected Pacemaker Longevity

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

Also Consider

Also Consider