Key result
Combined current of injury ≥1.04 mV and P-wave sensing ≥3.3 mV at 10 minutes after fixation predicted optimized atrial lead performance at 3 months (AUC 0.806).
Why the study?
Pacing parameters may influence lead and pacemaker life, but whether different right atrial active-fixation lead implantation parameters are associated with chronic pacing performance was unknown.
Do current of injury and P-wave sensing at 10 minutes predict optimized right atrial active-fixation lead performance at 3 months in patients receiving pacemakers?
Population
98 consecutive patients implanted with an active-fixation atrial lead
Comparison
Optimized vs conventional right atrial lead implantation parameters
Design
Retrospective observational study
Follow-up
3 months
Authors
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May support intraoperative atrial lead assessment; leaves open prospective validation before changing practice.
Observational (n=98)
No
Do current of injury and P-wave sensing at 10 minutes predict optimized right atrial active-fixation lead performance at 3 months in patients receiving pacemakers?
Odds Ratio: 0.296 (95% CI 0.093–0.939)
p-value: p=0.039
Current of injury ≥1.04 mV and P-wave sensing ≥3.3 mV at 10 minutes post-fixation can reliably predict optimized right atrial active-fixation lead performance at 3 months.
Chen et al. (2019) conducted an observational in Patients requiring active-fixation atrial leads (n=98). Current of injury (COI) and P-wave sensing at 10 minutes vs. Lower COI and P-wave sensing was evaluated on Lead optimized performance at 3 months (OR 0.296, 95% CI 0.093-0.939, p=0.039). Combined current of injury ≥1.04 mV and P-wave sensing ≥3.3 mV at 10 minutes after fixation predicted optimized atrial lead performance at 3 months (AUC 0.806).
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