Infections in children with left ventricular assist device

Area of Science:

• Pediatric Cardiology
• Infectious Diseases
• Medical Device Technology

Background:

• Limited data exists on pediatric left ventricular assist device (VAD) infections in developing nations.
• Investigating postimplantation infectious complications and their pathogens is crucial for VAD patient outcomes.

Purpose of the Study:

• To determine the incidence and characteristics of infectious complications in pediatric patients with left ventricular assist devices (VADs).
• To identify the pathogenic profile of these infections and their impact on patient outcomes, including mortality.

Main Methods:

• Retrospective analysis of patient charts from 27 pediatric patients with dilated cardiomyopathy who received a left VAD.
• Data collection focused on infection episodes, causative agents, hospitalization duration, ICU admissions, and mortality.

Main Results:

• 81.48% of patients experienced infections, with driveline exit site infections being most common.
• Gram-positive bacteria were the predominant pathogens, but Gram-negative and fungal infections were associated with increased mortality.
• Infected patients had significantly prolonged hospitalizations and higher ICU admission rates, particularly with fungal infections.

Conclusions:

• Ventricular assist device-related infections are frequent in pediatric populations, predominantly caused by Gram-positive bacteria.
• The rise of Gram-negative and fungal infections correlates with increased pre-transplant mortality.
• Implementing surveillance, infection control, and antibiotic stewardship programs is vital for reducing VAD patient mortality in developing countries.