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Pacemaker infections. A 2-year follow-up of antibiotic prophylaxis
Abstract:
To evaluate the long-term effect of systemic antibiotic prophylaxis at pacemaker surgery, an analysis was made of infections in 272 patients submitted to 303 consecutive pacemaker operations. The follow-up time was 24-33 months. Antibiotic prophylaxis had been given in all cases. The overall infection rate was 4.0%: The incidence after new implant was 3.8%, generator replacement 2.4%, electrode replacement 15% and early reoperation 4.2%, with the only statistically significant difference between electrode replacement and generator replacement. The interval between operation and appearance of infection was 3 days to 18 months. The causal microorganisms were methicillin-resistant Staphylococcus epidermidis in four patients, methicillin-sensitive S. epidermis in one patient and methicillin-sensitive S. aureus in three. An anaerobic gram-positive coccus was cultured in one patient and a nonenteric gram-negative rod in another. Five infections were cured by antibiotic treatment alone, but in seven cases surgery was also needed. The incidence of infection was significantly increased when potential predisposing factors--diabetes mellitus, postoperative hematoma and use of a temporary electrode--were present.
Insights
Systemic antibiotic prophylaxis for pacemaker surgery showed a 4.0% infection rate. Electrode replacement procedures had a significantly higher infection incidence, especially with predisposing factors.
Area of Science:
- Cardiology
- Infectious Disease
- Surgical Innovation
Background:
- Pacemaker surgeries require strategies to minimize infection risk.
- Systemic antibiotic prophylaxis is a common preventative measure.
Purpose of the Study:
- To assess the long-term effectiveness of antibiotic prophylaxis in pacemaker surgery.
- To identify specific pacemaker procedures and patient factors associated with infection.
Main Methods:
- Retrospective analysis of 303 pacemaker operations in 272 patients.
- Follow-up period of 24-33 months.
- Infection rates analyzed by procedure type and patient factors.
Main Results:
- Overall infection rate was 4.0% with antibiotic prophylaxis.
- Electrode replacement (15%) showed a significantly higher infection rate than generator replacement (2.4%).
- Diabetes, hematoma, and temporary electrode use increased infection risk.
Conclusions:
- Systemic antibiotic prophylaxis is associated with a low overall infection rate.
- Electrode replacement procedures warrant specific attention due to higher infection risk.
- Managing predisposing factors is crucial for reducing pacemaker surgery infections.