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Pacemaker infections: a 12-year review
Abstract:
In a 12-year period, 546 pacemaker-related operations were complicated by 23 infections (infection rate, 4.2%). Most of these infections were treated successfully, but two cases of infection were fatal. The most frequently encountered organism was Staphylococcus epidermidis. In 14 cases, infection occurred despite the preoperative administration of cloxacillin to which the organism was sensitive in 13 of the cases. The skin flora constitute the most likely source of contamination. The ideal treatment consists of removal of all foreign material and replacement with a new pacing system by an alternative route.
Insights
Pacemaker infections occurred at a 4.2% rate, with Staphylococcus epidermidis being the most common cause. Effective treatment involves removing the infected device and replacing it via a different route.
Area of Science:
- Cardiology
- Infectious Diseases
- Medical Device Technology
Background:
- Pacemaker-related operations carry a risk of infection.
- Infections can lead to severe complications, including fatality.
- Understanding infection sources and effective treatments is crucial for patient outcomes.
Purpose of the Study:
- To determine the incidence and characteristics of pacemaker-related infections.
- To identify the causative organisms and potential sources of contamination.
- To evaluate the effectiveness of current treatment strategies and propose optimal management.
Main Methods:
- Retrospective analysis of 546 pacemaker-related operations over a 12-year period.
- Identification and analysis of 23 infection cases.
- Microbiological analysis to identify causative organisms.
- Review of treatment protocols and patient outcomes.
Main Results:
- An infection rate of 4.2% (23 out of 546 operations) was observed.
- Staphylococcus epidermidis was the most frequent pathogen identified.
- Infections occurred despite appropriate antibiotic prophylaxis in most cases.
- Two fatal outcomes were reported among the infected patients.
- Skin flora was identified as the likely source of contamination.
Conclusions:
- Pacemaker infections, though infrequent, pose significant risks.
- Standard antibiotic prophylaxis may not be fully effective against common pathogens like Staphylococcus epidermidis.
- Complete removal of infected foreign material and reimplantation via an alternative route is the recommended treatment approach.