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Q fever endocarditis in a 6-year-old child
Archives of Disease in Childhood
|April 1, 1980
Summary
This case report details a rare pediatric Q fever endocarditis in a 6-year-old boy with a bicuspid aortic valve, presenting with hypertension and successfully treated with nephrectomy.
Area of Science:
- Pediatric Cardiology
- Infectious Diseases
- Vascular Surgery
Background:
- Congenital bicuspid aortic valve is a common congenital heart defect.
- Q fever endocarditis is a rare but serious complication of Coxiella burnetii infection.
- Early childhood endocarditis is exceptionally uncommon.
Observation:
- A 6-year-old boy with a bicuspid aortic valve presented with finger clubbing, hypertrophic osteoarthropathy, and severe hypertension.
- Nephrectomy revealed a thrombosed mycotic aneurysm of the renal artery.
- Echocardiography identified aortic valve vegetations.
Findings:
- Blood cultures were sterile, but high antibody titers to Coxiella burnetii antigens indicated Q fever infection.
- The patient's hypertension was successfully managed post-nephrectomy.
- This represents the first reported case of Q fever endocarditis in early childhood.
Implications:
- Highlights the importance of considering Q fever endocarditis in pediatric patients with unexplained hypertension and cardiac findings.
- Underscores the diagnostic challenge of culture-negative endocarditis.
- Emphasizes the need for early diagnosis and treatment to prevent severe complications.