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Infected epicardial pacemaker systems. Partial versus total removal
Abstract:
Nine patients with infected epicardial pacemakers are described. All of the patients had infection localized to the generator pocket. Staphylococcus epidermidis, the most common organism isolated, was found in seven (77.8%). Conservative nonsurgical treatment was initially attempted in five patients. This failed in all and necessitated subsequent operation. At the time of the initial operation, lead transection and partial removal of the system was performed in seven patients. In four of them (57%), persistent infection necessitated further operation and complete extraction to eradicate the infection. In contrast, in all six patients (100%) in whom total removal was achieved (two at the time of initial operation and four at the time of subsequent operation), there was successful resolution of the infection. Therefore, complete extraction of the entire pacing system should be carried out, whenever possible, to achieve the greatest likelihood of eradicating the infection.
Insights
Complete removal of infected pacemakers is crucial for eradicating infection. Surgical extraction of the entire pacing system offers the highest success rate in treating generator pocket infections, often caused by Staphylococcus epidermidis.
Area of Science:
- Cardiology
- Infectious Diseases
- Medical Device Technology
Background:
- Infected epicardial pacemakers present a significant clinical challenge.
- Generator pocket infections are a common complication.
- Staphylococcus epidermidis is the predominant pathogen identified.
Purpose of the Study:
- To evaluate the effectiveness of different treatment strategies for infected epicardial pacemakers.
- To determine the optimal approach for eradicating infection associated with pacemaker systems.
Main Methods:
- Retrospective analysis of nine patients with infected epicardial pacemakers.
- Assessment of outcomes following conservative management, partial removal, and complete system extraction.
- Microbiological analysis to identify causative organisms.
Main Results:
- Conservative nonsurgical treatment failed in all five patients attempted.
- Partial removal of the pacing system led to persistent infection in 57% of patients, requiring further surgery.
- Complete extraction of the entire pacing system resulted in successful infection resolution in 100% of patients.
Conclusions:
- Complete extraction of the entire pacing system is the most effective strategy for eradicating pacemaker pocket infections.
- Surgical intervention, specifically total system removal, should be prioritized for optimal patient outcomes.
- Early and complete removal improves the likelihood of resolving Staphylococcus epidermidis infections.