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Late unheralded pacemaker pocket infection due to Staphylococcus epidermidis: a new clinical entity
Abstract:
Late pacemaker pocket infections in the absence of predisposing factors such as multiple pacemaker related procedures, skin erosion, chest wall trauma or generalized sepsis have been rarely reported. In the past year, we have seen three late pocket infections (18, 32 and 47 months post-implantation) due to Staphylococcus epidermidis (S. epidermidis). All three patients with late S. epidermidis infections presented with painless swelling over the pulse generator site and had been well until shortly before admission. The patients denied febrile illnesses or chest trauma in the preceding year and no skin erosion was evident. All had been seen regularly in clinic and bimonthly transtelephonic recordings had shown normal pacemaker function. Local drainage, antibiotics and removal of the pacing system was successful in all three patients. We conclude that late pacemaker pocket infections due to S. epidermidis may become an important clinical problem in this era of long-lasting pulse generators. In light of the insidious nature of S. epidermidis infections, regular inspection of the pocket area by both patient and physician is mandatory.
Insights
Late pacemaker pocket infections from Staphylococcus epidermidis (S. epidermidis) can occur years after implantation without obvious causes. Early detection through regular checks is crucial for successful treatment.
Area of Science:
- Cardiology
- Infectious Diseases
- Medical Devices
Background:
- Late pacemaker pocket infections are uncommon, especially without typical risk factors.
- Pacemaker technology has advanced, leading to longer device longevity and patient follow-up periods.
Observation:
- Three cases of late pacemaker pocket infections (18-47 months post-implantation) caused by Staphylococcus epidermidis (S. epidermidis) were observed.
- Patients presented with painless swelling, denying recent trauma, fever, or skin erosion.
- Routine pacemaker function and transtelephonic monitoring showed no abnormalities prior to infection.
Findings:
- Staphylococcus epidermidis (S. epidermidis) was identified as the causative agent in all late-onset infections.
- Infections were insidious, presenting without overt signs of inflammation or systemic illness.
- Successful treatment involved local drainage, antibiotics, and removal of the pacing system.
Implications:
- Late S. epidermidis pacemaker pocket infections may represent an emerging clinical challenge with longer-lasting pulse generators.
- The subtle presentation necessitates vigilant monitoring for early diagnosis.
- Regular pocket area inspection by patients and healthcare providers is essential for timely intervention.