Key result
Active-fixation screw-in leads with slightly high initial pacing thresholds (1.0-2.0 V) showed significant improvement after 5 minutes (to 0.9 V, p<0.05) and remained stable at 1 year.
Why the study?
Does leaving active-fixation screw-in leads with slightly high initial pacing thresholds (1.0-2.0 V) without repositioning result in long-term stability of pacing thresholds 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
Loading...
May support deferring repositioning for borderline thresholds; hypothesis-generating and requires randomized confirmation.
Observational (n=68)
Does leaving active-fixation screw-in leads with slightly high initial pacing thresholds (1.0-2.0 V) without repositioning result in long-term stability of pacing thresholds in patients undergoing pacemaker or ICD implantation?
p-value: p=<0.05
Active-fixation screw-in leads with slightly high initial pacing thresholds (1.0-2.0 V) improve rapidly within 5 minutes and remain stable over 1 year, suggesting lead repositioning may not be necessary.
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 thresholds at 5 minutes and 1 year (p=<0.05). Active-fixation screw-in leads with slightly high initial pacing thresholds (1.0-2.0 V) showed significant improvement after 5 minutes (to 0.9 V, p<0.05) and remained stable at 1 year.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: