Risk Factors for CIED Infection After Secondary Procedures: Insights From the WRAP-IT Trial

Area of Science:

• Cardiology
• Infectious Disease
• Medical Device Technology

Background:

• Cardiac implantable electronic device (CIED) infections pose a significant risk.
• Evidence supporting infection prevention strategies for CIED procedures is limited.
• The WRAP-IT trial provides valuable data on CIED infection prevention.

Purpose of the Study:

• To identify patient and procedural risk factors for infection following secondary CIED procedures.
• To inform the development of targeted infection prevention strategies.

Main Methods:

• Analysis of 2,803 control patients from the WRAP-IT trial.
• Utilized a machine learning model (multivariate least absolute shrinkage and selection operator) to identify risk factors.
• Screened 81 variables for predictive value in 100 iterations.

Main Results:

• Identified 17 significant risk factors for CIED infection.
• Nonmodifiable factors include prior CIED procedures, atrial arrhythmia, geography, device type, and lower BMI.
• Modifiable procedural factors include longer procedure time, implant location, perioperative antibiotic choice, anticoagulant/antiplatelet use, and capsulectomy.

Conclusions:

• Procedural factors significantly correlate with infection risk in secondary CIED procedures.
• Findings can guide the implementation of effective infection prevention strategies.
• Targeting modifiable procedural factors may reduce CIED infection rates.