Group B streptococcal endocarditis in a neonate

Area of Science:

• Pediatric Cardiology
• Infectious Diseases
• Cardiovascular Surgery

Background:

• Group B Streptococcus (GBS) septicemia is a serious infection in neonates.
• Bacterial endocarditis and aortic dissection are rare but life-threatening complications.
• Meningitis can be an initial presentation of GBS infection in infants.

Observation:

• A one-month-old infant girl presented with meningitis.
• Echocardiography revealed a large aortic vegetation and dissecting aneurysm of the ascending aorta.
• No pre-existing cardiac anomalies were identified.

Findings:

• The infant was diagnosed with bacterial endocarditis and dissecting aneurysm secondary to GBS septicemia.
• Intravenous ampicillin treatment was administered for six weeks.
• Successful surgical replacement of the ascending aorta with an aortic homograft was performed.

Implications:

• This case underscores the critical role of two-dimensional echocardiography in diagnosing endocarditis-related cardiac complications in infants.
• Early detection and surgical intervention are vital for managing aortic dissection in pediatric bacterial endocarditis.
• Prompt antibiotic therapy is essential for treating GBS septicemia and preventing further complications.