Background: Patients with ventricle septal defect are considered at higher risk of infectious endocarditis than the population in general. According to guidelines, these patients should receive prophylactic antibiotics prior to invasive procedures. Recently, several studies have been published that challenge this view.
Material And Methods: Based on searches in Medline, we discuss the risk of endocarditis and indication for antibiotic prophylaxis in patients with this defect.
Results: Patients with perimembranous and subvalvular defects have higher risk of endocarditis than the population in general. The proportion of patients developing endocarditis in relation to invasive procedures is low. Prophylactic antibiotics are only partially effective.
Interpretation: The proportion of preventable cases of endocarditis is low, and the prophylaxis does not give sufficient protection. Studies suggest that only patients at the highest risk should receive prophylactics.
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