January 1, 1994Pacing and Clinical Electrophysiology
Influence of Internal Current and Pacing Current on Pacemaker Longevity
Key result
The Minix 8341 pacemaker had lower internal current (4.1 vs 16.1 microA) than the Pasys 8329, allowing programming from 5.0 to 2.5 V to extend projected longevity by 7.1 years versus 2.3 years.
Why the study?
Does the Minix 8341 pacemaker compared to the Pasys 8329 pacemaker improve battery current and projected longevity at lower pulse amplitudes?
Population
VVI pacemakers (Minix 8341 and Pasys 8329)
Comparison
Minix 8341 VVI pacemaker vs Pasys 8329 VVI pacemaker
Design
Other
Authors
Discussion
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Member takes
Implication
May extend projected longevity by enabling lower-voltage programming; leaves open real-world clinical validation in patients.
Study Design
Type
Observational
Structured PICO
Does the Minix 8341 pacemaker compared to the Pasys 8329 pacemaker improve battery current and projected longevity at lower pulse amplitudes?
P
Population
VVI pacemakers (Minix 8341 and Pasys 8329)
E
Exposure
Minix 8341 VVI pacemaker
C
Comparator
Pasys 8329 VVI pacemaker
O
Outcome
Battery current and projected pacemaker longevitysurrogate
Programming pacemakers with low internal circuitry current to 2.5 V or less can significantly extend their projected longevity.
Cite This Study
Schuchert et al. (1994) conducted an observational in Pacemaker longevity. Minix 8341 VVI pacemaker vs. Pasys 8329 VVI pacemaker was evaluated on Battery current and projected pacemaker longevity. The Minix 8341 pacemaker had lower internal current (4.1 vs 16.1 microA) than the Pasys 8329, allowing programming from 5.0 to 2.5 V to extend projected longevity by 7.1 years versus 2.3 years.