Key result
Determining pacing threshold with increasing output yielded an average threshold 0.20 V/0.20 mA higher than with decreasing output, regardless of pacemaker indication or electrode status.
Why the study?
Does pacing threshold determination with increasing output yield different values compared to decreasing output in patients with pacemakers?
Population
44 patients with pacemakers. Indications included sino-atrial bradycardia and atrio-ventricular block.
Comparison
Pacing threshold determination with increasing… vs Pacing threshold determination with decreasing…
Design
Cross-sectional
Authors
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Threshold measurement order may bias values in device follow-up; leaves open standardization effects on programming and longevity.
Observational (n=44)
Does pacing threshold determination with increasing output yield different values compared to decreasing output in patients with pacemakers?
Effect estimate: average 0.20 V/0.20 mA higher
Pacing thresholds measured with increasing output are consistently higher than those measured with decreasing output, regardless of pacemaker indication or electrode age.
Sylvén et al. (1982) conducted an observational in Sino-atrial bradycardia or atrio-ventricular block (n=44). Increasing output for pacing threshold determination vs. Decreasing output was evaluated on Pacing threshold (average 0.20 V/0.20 mA higher). Determining pacing threshold with increasing output yielded an average threshold 0.20 V/0.20 mA higher than with decreasing output, regardless of pacemaker indication or electrode status.
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