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Pneumococcal endocarditis in infants
Insights
Pneumococcal endocarditis in infants presents with tachycardia, tachypnea, and cardiomegaly, often affecting the mitral valve. This serious condition has a high fatality rate, even with penicillin treatment.
Area of Science:
- Pediatric Cardiology
- Infectious Diseases
- Neonatal Medicine
Background:
- Pneumococcal endocarditis is a rare but severe infection affecting heart valves.
- Understanding its presentation and outcomes in infants is crucial for timely diagnosis and management.
Observation:
- This report details a case of pneumococcal endocarditis in an infant and reviews seven prior cases.
- Key presenting symptoms included tachycardia, tachypnea, and cardiomegaly.
- A new heart murmur was noted in most infants, while fever was infrequent.
Findings:
- The mitral valve was the most common site of infection (7 out of 8 patients).
- Unlike adults, associated pneumonia and meningitis were rare in these pediatric cases.
- The disease demonstrated high mortality, with 7 out of 8 patients succumbing, including 3 of 4 treated with penicillin.
Implications:
- Early recognition of specific symptoms like tachycardia and tachypnea is vital for prompt diagnosis.
- The high fatality rate underscores the need for aggressive treatment strategies and further research.
- This condition highlights unique clinical features in infants compared to adult pneumococcal endocarditis.
Abstract:
A case of pneumococcal endocarditis in an infant is reported together with a review of seven cases previously described in the literature. The prominent presenting symptoms of this usually fatal disease consisted of tachycardia, tachypnea, and cardiomegaly. A new murmur was heard in six of the eight patients. Fever was infrequent. Blood cultures were positive when done. The mitral valve was the site of infection in seven of the patients. In contrast to adult patients, pneumonia and meningitis are rarely encountered in children with pneumococcal endocarditis. The disease was fatal in all four patients before the penicillin era and in three of four patients who received penicillin.