Interventions using foreign material to treat congenital heart disease in children increase the risk for infective...

Area of Science:

• Pediatric Cardiology
• Infectious Diseases
• Medical Interventions

Background:

• Congenital heart disease (CHD) is a known risk factor for infective endocarditis (IE).
• Assessing the impact of cardiac interventions on IE frequency and microbial profile in pediatric CHD patients is crucial.

Purpose of the Study:

• To evaluate the relationship between cardiac interventions and infective endocarditis (IE) in children with congenital heart disease (CHD).
• To determine if cardiac procedures, with or without foreign material implantation, alter IE risk in this population.

Main Methods:

• Retrospective analysis of IE episodes in children (≤18 years) with CHD from 1995-2005.
• Categorization of interventions included cardiac surgery and catheter procedures, with or without foreign material implantation.
• Comparison of IE incidence between interventional and non-interventional groups, and analysis of microbial profiles.

Main Results:

• 14 IE cases (0.36%) occurred in 3826 children with CHD; 8 were post-interventional.
• Interventions without foreign material did not increase IE risk.
• Foreign material implantation significantly increased IE risk (OR, 21.0), with pacemaker implantation showing the highest risk (OR, 11.0).
• Staphylococci were the predominant organisms in foreign material-associated IE.

Conclusions:

• Cardiac interventions themselves do not elevate IE risk in children with CHD.
• Post-interventional IE in pediatric CHD patients is strongly associated with the implantation of foreign materials, especially pacemakers.
• Risk stratification and targeted prevention strategies are needed for CHD patients undergoing procedures involving foreign material implantation.