Key result
Slightly high initial pacing thresholds (1.0-2.0 volts) with active-fixation screw-in leads significantly improved after 5 minutes (p<0.05) and remained stable over 1 year without repositioning.
Why the study?
Do active-fixation screw-in leads with slightly high initial pacing thresholds (1.0-2.0 V) improve rapidly and remain stable long-term without repositioning in patients undergoing pacemaker or ICD implantation?
Population
68 consecutive patients referred for an initial pacemaker or implantable cardioverter defibrillator…
Design
Cohort
Follow-up
1 year
Authors
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May avoid unnecessary repositioning during implantation; leaves open need for randomized confirmation of lead stability.
Observational (n=68)
Do active-fixation screw-in leads with slightly high initial pacing thresholds (1.0-2.0 V) improve rapidly and remain stable long-term without repositioning in patients undergoing pacemaker or ICD implantation?
p-value: p=<0.05
Active-fixation screw-in leads with initial pacing thresholds between 1.0 and 2.0 V improve rapidly within 5 minutes and remain stable at 1 year, suggesting immediate repositioning may be unnecessary.
Sekita et al. (2010) conducted an observational in Pacemaker or implantable cardioverter defibrillator implantation (n=68). Active-fixation screw-in leads was evaluated on Pacing threshold improvement at 5 minutes and long-term stability (p=<0.05). Slightly high initial pacing thresholds (1.0-2.0 volts) with active-fixation screw-in leads significantly improved after 5 minutes (p<0.05) and remained stable over 1 year without repositioning.
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