Cardiac implantable electronic device (CIED) infections represent one of the
most threatening complications associated with device implantation, due to an
increase in morbidity and mortality rates, as well as healthcare costs. Besides,
it is important to highlight that when compared to the initial implantation of a
device, the risks associated with procedures like generator changes, lead and
pocket revisions, or device upgrades double. Consequently, to address this issue,
various scoring systems, like the PADIT (Prior Procedures, Age, Depressed Renal Function, Immunocompromised Status, Type of Procedure), the RI-AIAC (Ricerca Sulle Infezioni Associate a ImpiAnto o Sostituzione di CIED), and the Shariff score,
along with predictive models, have been developed to identify patients at a
greater risk of infection. Moreover, several interventions have been assessed to
evaluate their role in infection prevention ranging from improving skin
preparation and surgical techniques to considering alternative strategies such as
the subcutaneous Implantable Cardioverter-Defibrillator (ICD). Methods like
antimicrobial prophylaxis, pocket irrigation, chlorhexidine gluconate pocket
lavage, capsulectomy, and the use of antibacterial envelopes have been also
explored as preventive measures. In this review, we provide a comprehensive
assessment of CIED infections in patients undergoing repeat procedures and the
strategies designed to reduce the risk of these infections.