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Updated: Mar 14, 2026

A Murine Model of Group B Streptococcus Vaginal Colonization
Published on: November 16, 2016
Mitral valve replacement in neonatal endocarditis: time to discuss prevention strategies for Group B streptococcus
Sormeh Salehian1, Abhinav Rastogi1, Olivier Ghez1
1Paediatric Intensive Care Unit, Royal Brompton and Harefield NHS Foundation Trust, London, UK.
Insights
Group B streptococcus (GBS) can cause severe neonatal infections, including sepsis and meningitis. This case highlights a rare GBS-related infective endocarditis in a neonate, requiring complex treatment and valve replacement.
Area of Science:
- Neonatal Medicine
- Infectious Diseases
- Cardiology
Background:
- Group B streptococcus (GBS) is a primary cause of early-onset neonatal sepsis.
- GBS can also lead to late-onset GBS septicaemia, meningitis, and rarely, infective endocarditis (IE).
Purpose of the Study:
- To report a rare case of GBS septicaemia and meningitis in a neonate.
- To describe the subsequent development and management of severe infective endocarditis in the same patient.
Main Methods:
- Clinical case presentation and management.
- Diagnostic procedures including blood cultures and echocardiography.
- Surgical intervention for severe mitral valve infective endocarditis.
Main Results:
- A healthy term neonate developed GBS septicaemia and meningitis.
- The neonate subsequently developed severe infective endocarditis affecting the mitral valve.
- Successful mitral valve replacement using an innovative Melody valve procedure.
Conclusions:
- Group B streptococcus can cause severe, multi-system infections in neonates, including infective endocarditis.
- Prompt diagnosis and aggressive management, including valve replacement, are crucial for survival.
- Innovative valve replacement techniques offer viable solutions for complex neonatal cardiac conditions.
Abstract:
Group B streptococcus (GBS) is recognised as one of the leading organisms in early-onset neonatal sepsis but is also a cause of late-onset GBS septicaemia, meningitis and rarely, infective endocarditis (IE). We report a case of a healthy term neonate who developed GBS septicaemia and meningitis having presented with parental concern and poor feeding. Subsequent identification and treatment of GBS resulted in the requirement for long-line intravascular access in order to administer antibiotic therapy. One week later, after repeated parental concern and symptoms of shortness of breath, the neonate presented to Accident and Emergency and subsequently a Paediatric Cardiorespiratory Intensive Care Unit where emergency resuscitation procedures were required and diagnosis of severe IE affecting the mitral valve was made. Mitral valve replacement was complicated with significant morbidity and prolonged hospitalisation. An innovative procedure to insert a Melody valve was successful.
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