Why the study?
Does the P wave histogram better detect the smallest atrial signals compared to resting or exercise readings in patients with single lead VDD pacemakers?
Population
15 patients who underwent implantation of a Vitatron Saphir VDD pacemaker with a Vitatron Brilliant electrode
Comparison
P wave amplitude histogram recording over 30 days vs Resting P wave amplitude and single readings…
Design
Cohort
Follow-up
mean 67.3 +/- 38.8 days
Authors
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P-wave amplitude falls during exercise in VDD patients; histogram use supported but hypothesis-generating and should not yet change practice.
Does the P wave histogram better detect the smallest atrial signals compared to resting or exercise readings in patients with single lead VDD pacemakers?
The P wave amplitude histogram is the most reliable indicator of the smallest atrial signal and should be used to optimize atrial sensitivity settings in VDD pacing.
Langford et al. (1997) studied this question.
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