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Initial experience with a co-radial bipolar pacing lead
C Tang1, J A Yeung-Lai-Wah, A Qi
1Department of Medicine, University of British Columbia, Vancouver Hospital and Health Sciences Centre (UBC and Oak Street Sites), Canada.
Pacing and Clinical Electrophysiology : PACE
|July 1, 1997
Summary
New co-radial bipolar pacing leads offer improved handling and stable electrical performance compared to traditional leads. These thinner leads demonstrate clinical advantages, though long-term reliability requires further investigation.
Area of Science:
- Cardiology
- Biomedical Engineering
- Medical Devices
Background:
- Conventional coaxial bipolar pacing leads have potential drawbacks.
- A novel co-radial bipolar pacing lead design aims to address these limitations.
- The Intermedics Thin-Line lead is thinner than standard coaxial leads.
Purpose of the Study:
- To prospectively evaluate the clinical performance and handling of new co-radial bipolar pacing leads.
- To compare the new lead design against conventional coaxial bipolar pacing leads.
Main Methods:
- Prospective evaluation of 103 patients receiving 71 atrial and 89 ventricular co-radial leads.
- Subjective assessment of X-ray visibility and lead handling at implant.
- Objective measurement of lead impedance, sensitivity, and pacing thresholds at implant and follow-up (1, 3, 6, 12, 18 months).
Main Results:
- X-ray visibility and handling were generally rated as excellent or good.
- Lead electrical characteristics (impedance, sensitivity, pacing threshold) were stable throughout the 18-month follow-up.
- No pacing lead-related complications were reported during the follow-up period.
- Two perioperative complications occurred, unrelated to lead performance.
Conclusions:
- The new co-radial bipolar pacing lead demonstrates favorable handling and stable electrical performance.
- This lead design shows potential clinical advantages over conventional coaxial bipolar pacing leads.
- Long-term follow-up is necessary to confirm the chronic reliability and performance of these novel leads.