Key result
Pacing-lead bending angles ≤90 degrees were associated with larger atrial potentials and narrower variation than obtuse angles, while no clinical parameters predicted AV-synchrony ratio ≥90%.
Why the study?
What are the clinical and procedural predictors of stable and effective atrial sensing in adults implanted with VDD pacemakers?
Population
80 consecutive adults implanted with VDD pacemakers
Design
Cohort
Follow-up
2 years
Authors
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Lead bending ≤90° may aid acute atrial sensing in VDD implants; leaves open reliable predictors of sustained AV synchrony.
Observational (n=80)
What are the clinical and procedural predictors of stable and effective atrial sensing in adults implanted with VDD pacemakers?
In patients receiving VDD pacemakers, pacing-lead bending angles <= 90 degrees may improve the amplitude and stability of atrial potentials, though clinical characteristics do not reliably predict long-term AV-synchrony efficacy.
Huang et al. (2005) conducted an observational in VDD pacemaker implantation (n=80). Pacing-lead bending angles ≤ 90 degrees vs. Obtuse pacing-lead bending angles was evaluated on Appropriate atrial sensing efficacy (AV-synchrony ratio ≥ 90%) and stability of atrial sensing. Pacing-lead bending angles ≤90 degrees were associated with larger atrial potentials and narrower variation than obtuse angles, while no clinical parameters predicted AV-synchrony ratio ≥90%.
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