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Late complications following permanent pacemaker implantation or elective unit replacement
A A Harcombe1, S A Newell, P F Ludman
1Regional Cardiac Unit, Papworth Hospital NHS Trust, Cambridge, UK.
Heart (British Cardiac Society)
|January 6, 1999
Summary
Late complications after permanent pacemaker implantation are infrequent, especially for initial procedures. Elective unit replacement carries a higher risk, with erosion and infection being the most common issues.
Area of Science:
- Cardiology
- Medical Devices
- Surgical Complications
Background:
- Permanent pacemaker systems are crucial for managing cardiac arrhythmias.
- Understanding late complication rates is essential for patient safety and device management.
Purpose of the Study:
- To determine the incidence of late complications following initial permanent pacemaker implantation versus elective unit replacement.
- To identify common types and risk factors for late pacemaker complications.
Main Methods:
- Retrospective analysis of prospectively acquired pacemaker data from 2621 patients over an 11-year period (1984-1994).
- Complications were defined as those requiring repeat procedures more than six weeks post-implantation or replacement.
- Data were collected from a tertiary referral cardiothoracic centre.
Main Results:
- The overall late complication rate was significantly lower after first pacemaker implantation (1.4%) compared to elective unit replacement (6.5%).
- Common late complications included erosion (20 cases), infection (18 cases), electrode problems (5 cases), and miscellaneous issues (7 cases).
- Complication rates were substantially higher with inexperienced operators (18.9%) than experienced ones (0.9%).
Conclusions:
- Late complications following permanent pacemaker implantation are generally low and comparable to early complication rates.
- Erosion and infection represent the majority of late pacemaker complications.
- Patients undergoing elective unit replacement face a notably higher risk of late complications.