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Published on: October 11, 2022
[Meningoencephalitis caused by Rickettsia conorii in a young infant]
A Bougteba1, A Basir, N Charradi
1Service de neurologie, hôpital Civil, 93000 Tétouan, Maroc. bougteba@gmail.com
Introduction:
Mediterranean spotted fever is an infectious disease due to Rickettsia conori, endemic in the Mediterranean basin. It is usually considered to be a benign disease; however, severe systemic manifestations have been reported in which neurological involvement occurs. These complications are rare in children.
Case Report:
We report a case of a 14-month-old boy, who was hospitalized for meningoencephalitis after seven days of high fever and maculopapular rash. On clinical observation there were generalized maculopapular elements and an inoculation eschar tache noire at the right ear. The diagnosis of Mediterranean spotted fever was established by epidemiological and clinical features and was confirmed by elevated IgM antibody titres against R. conorii by indirect immunofluorescence assay. Despite treatment with macrolides and corticosteroids, severe neurological sequelae have remained including decreased vision and epileptic seizures.
Conclusion:
The physiopathology of Mediterranean spotted fever includes diffuse vasculitis with endothelial injury. Early diagnosis and specific antibiotic treatment may reduce the risk of complications.
Insights
Mediterranean spotted fever can cause severe neurological complications in children, such as meningoencephalitis. Early diagnosis and treatment of Rickettsia conori infection are crucial to prevent lasting neurological damage.
Area of Science:
- Infectious Diseases
- Neurology
- Pediatrics
Background:
- Mediterranean spotted fever, caused by Rickettsia conori, is endemic to the Mediterranean basin.
- While typically benign, severe systemic manifestations, including neurological involvement, can occur.
- Neurological complications are notably rare in pediatric cases.
Observation:
- A 14-month-old boy presented with meningoencephalitis following a week of fever and rash.
- Clinical signs included maculopapular rash and an inoculation eschar ('tache noire').
- Diagnosis was supported by epidemiological data, clinical presentation, and confirmed by elevated IgM antibodies to R. conorii.
Findings:
- The patient developed severe neurological sequelae despite treatment with macrolides and corticosteroids.
- Sequelae included decreased vision and epileptic seizures.
- The case highlights potential severe outcomes in pediatric Rickettsia conori infections.
Implications:
- Physiopathology involves diffuse vasculitis and endothelial injury.
- Prompt diagnosis and appropriate antibiotic therapy are vital for mitigating complications.
- This case underscores the importance of considering severe Rickettsia conori infections in febrile children with neurological symptoms.
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