Leadless pacemaker implantation after lead extraction for cardiac implanted electronic device infection

Area of Science:

• Cardiology
• Medical Devices
• Infectious Diseases

Background:

• Cardiac implanted electronic device (CIED) infections pose significant risks, including high morbidity and mortality.
• Traditional CIEDs are prone to pocket and systemic infections.
• Leadless pacemakers may mitigate CIED infection complications by eliminating the surgical pocket.

Purpose of the Study:

• To evaluate the safety and efficacy of leadless pacemakers after CIED infection and extraction.
• To describe outcomes, including procedural complications and recurrent infections, following leadless pacemaker implantation.

Main Methods:

• A retrospective study of 39 patients who received leadless pacemakers post-CIED infection and extraction at Duke University Hospital (2014-2019).
• Data collected included patient demographics, infection details, and postprocedural outcomes.
• Outcomes assessed: procedural complications, pacemaker syndrome, system revision, and recurrent infection.

Main Results:

• The study included 39 patients (mean age 71 years; 31% women) with complete heart block as the primary indication.
• Staphylococcus aureus was the most common pathogen (43.6%).
• No recurrent CIED infections were observed during a mean follow-up of 24.8 months; 3 major complications occurred (hematoma, AV fistula, pacemaker syndrome).

Conclusions:

• Leadless pacemaker implantation following CIED infection and removal is associated with no recurrent infections.
• Further research with larger cohorts and longer follow-up is needed to confirm long-term benefits compared to traditional pacemakers.