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Aspergillus flavus endocarditis and meningitis in a child with marfan syndrome
Azam Fattahi1, Shirin Sayyahfar2, Ensieh Lotfali3
1Center for Research and Training in Skin Diseases and Leprosy, Tehran University of Medical Sciences, Tehran, Iran.
Background And Purpose:
Aspergillus species are implicated as the etiology of approximately 26% of endocarditis cases. Central nervous system aspergillosis is a life-threatening condition that has a mortality rate of 80%.
Case Report:
Herein, we report a four- year- old female who was admitted to the pediatric infectious ward due to a fever of unknown origin in January 2020. She was a known case of Marfan syndrome with a family history of this syndrome in her mother. The species was identified using (PCR) and the antifungal susceptibility test was performed using four antifungal agents based on the Clinical and Laboratory Standards Institute M38 3rd edition. Fluconazole-resistant Aspergillus flavus was identified to be responsible for endocarditis and meningitis as well as fever of unknown origin.
Conclusion:
The clinicians should be aware and consider fungal endocarditis in blood culture-negative endocarditis even in patients with no significant risk factor when antibiotic therapy fails.
Insights
This case report highlights a rare instance of fungal endocarditis caused by fluconazole-resistant Aspergillus flavus in a pediatric patient with Marfan syndrome. Early consideration of fungal infections is crucial, especially in culture-negative endocarditis cases unresponsive to antibiotics.
Area of Science:
- Medical Mycology
- Infectious Diseases
- Pediatric Cardiology
Background:
- Aspergillus species cause approximately 26% of endocarditis cases.
- Central nervous system aspergillosis has a high mortality rate of 80%.
Observation:
- A four-year-old female with Marfan syndrome presented with fever of unknown origin.
- Infectious endocarditis and meningitis were diagnosed.
- Fluconazole-resistant Aspergillus flavus was identified as the causative agent.
Findings:
- Polymerase chain reaction (PCR) confirmed the Aspergillus species.
- Antifungal susceptibility testing identified resistance to fluconazole.
- The patient experienced endocarditis, meningitis, and fever of unknown origin.
Implications:
- Clinicians should consider fungal endocarditis in blood culture-negative cases, even without typical risk factors.
- Failure of antibiotic therapy warrants investigation for fungal etiologies.
- Awareness of rare fungal infections in immunocompromised or syndromic patients is critical.
Related Concept Videos
Endocarditis I: Introduction
Endocarditis II: Clinical Features of Infective Endocarditis
Rheumatic Heart Disease I: Introduction
Mitral Valve Prolapse I: Introduction
Mitral Stenosis I: Introduction
Endocarditis III: Medical Management

