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Fatal Haemophilus influenzae endocarditis diagnosed by echocardiography in an infant
Abstract:
A 1-year-old boy was admitted to the hospital with Haemophilus influenzae meningitis. On the second hospital day a heart murmur heard on admission seemed louder. No signs of congestive heart failure were present. An echocardiogram demonstrated a persistent echo-dense mass behind the anterior leaflet of the mitral valve. A presumptive diagnosis of endocarditis was made. After ten days of antibiotic treatment the child was considerably improved. Treatment was continued for endocarditis. Over the next several days the infant's condition deteriorated. On the 16th hospital day he died. Autopsy examination showed a large vegetation attached to the posterior mitral valve leaflet. Bacterial endocarditis caused by H influenzae is uncommon at any age and rare in children. Echocardiography provided a definitive diagnosis early in the hospital course of this patient.
Insights
Haemophilus influenzae meningitis can lead to bacterial endocarditis, a rare condition in children. Echocardiography aided in the early diagnosis of this rare pediatric endocarditis case.
Area of Science:
- Pediatric Cardiology
- Infectious Diseases
- Medical Diagnostics
Background:
- Haemophilus influenzae meningitis is a serious infection in children.
- Bacterial endocarditis is an uncommon complication, particularly in pediatric cases.
- Early diagnosis and treatment are crucial for managing infective endocarditis.
Observation:
- A 1-year-old boy with H. influenzae meningitis developed a louder heart murmur.
- Echocardiography revealed an echo-dense mass on the mitral valve, suggesting endocarditis.
- Despite initial improvement with antibiotics, the patient's condition deteriorated.
Findings:
- Autopsy confirmed bacterial endocarditis caused by H. influenzae, with a large vegetation on the mitral valve.
- This case highlights the rarity of H. influenzae endocarditis in children.
- Echocardiography proved instrumental in achieving an early diagnosis.
Implications:
- Emphasizes the importance of considering endocarditis in pediatric meningitis patients with cardiac findings.
- Underscores the diagnostic value of echocardiography in suspected pediatric endocarditis.
- Highlights the challenges in managing rare pediatric infectious complications.