Left ventricular assist device-related infections: a multicentric study

Area of Science:

• Cardiology
• Infectious Diseases
• Medical Devices

Background:

• Implantable left ventricular assist devices (LVADs) are crucial for end-stage heart failure.
• Increasing LVAD use highlights the need to understand and manage associated infections.

Purpose of the Study:

• To characterize the incidence, types, and management of LVAD-related infections.
• To provide data to guide clinical practice for LVAD infection complications.

Main Methods:

• Retrospective analysis of 159 patients receiving LVADs across three French centers (2007-2012).
• Standardized definitions and data collection for LVAD-related infections.
• Analysis of infection sites, causative pathogens, and treatment strategies.

Main Results:

• 36% of patients developed LVAD-related infections, with a median onset of 2.9 months post-implantation.
• Common infection sites included driveline exit sites and loco-regional extensions.
• Staphylococcus aureus, Enterobacteriaceae, and Pseudomonas aeruginosa were frequent pathogens; 19 cases involved polymicrobial infections.
• Prolonged antibiotic therapy (94%) and debridement (47%) were common management strategies.

Conclusions:

• LVAD-related infections are a significant complication, occurring in over 20% of patients.
• Effective management often involves prolonged antibiotic courses, allowing LVAD retention.
• One patient mortality was associated with LVAD-related infection.