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Experimental Infection of Mice with the Parasitic Nematode Strongyloides ratti ratti Infection
Published on: January 17, 2025
Five cases of recurrent meningitis associated with chronic strongyloidiasis
Teppei Shimasaki1, Heath Chung2, Soichi Shiiki2
1Department of Medicine, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii; Department of Medicine, Okinawa Chubu Hospital, Okinawa, Japan shimasaki.t@gmail.com.
Abstract:
Although meningitis secondary to chronic strongyloidiasis is a rare complication, it is associated with a high mortality rate. Recurrent meningitis can occur if the underlying parasitic infection is left untreated. We report five cases of recurrent meningitis related to chronic strongyloidiasis that were associated with human T-lymphotropic virus type 1 (HTLV-1) infection. Common causative organisms are Escherichia coli, Streptococcus bovis, and Klebsiella pneumonia. One patient died during the second episode of meningitis. Three patients showed significant gastrointestinal and respiratory symptoms before developing headache and fever. In four cases, patients developed multiple recurrences even with the treatment of thiabendazol. Ivermectin seems to be a better agent compared with thiabendazol to achieve eradication of strongyloidiasis.
Insights
Chronic strongyloidiasis can lead to recurrent meningitis, especially with human T-lymphotropic virus type 1 (HTLV-1) infection. Ivermectin may be more effective than thiabendazol for treating this rare but deadly complication.
Area of Science:
- Infectious Diseases
- Neurology
- Parasitology
Background:
- Chronic strongyloidiasis is a parasitic infection that can lead to serious complications.
- Meningitis secondary to strongyloidiasis is rare but has a high mortality rate.
- Recurrent meningitis necessitates effective treatment of the underlying parasitic infection.
Purpose of the Study:
- To report cases of recurrent meningitis associated with chronic strongyloidiasis and human T-lymphotropic virus type 1 (HTLV-1) infection.
- To compare the efficacy of ivermectin and thiabendazol in treating strongyloidiasis-related meningitis.
Main Methods:
- Case series reporting five patients with recurrent meningitis.
- Review of clinical symptoms, causative organisms, and treatment outcomes.
- Comparison of treatment responses to thiabendazol and ivermectin.
Main Results:
- Five cases of recurrent meningitis linked to chronic strongyloidiasis and HTLV-1 infection were identified.
- Common bacterial pathogens included Escherichia coli, Streptococcus bovis, and Klebsiella pneumonia.
- Four patients experienced multiple recurrences despite thiabendazol treatment; ivermectin showed better eradication potential.
Conclusions:
- Chronic strongyloidiasis, particularly in HTLV-1 infected individuals, poses a risk for recurrent meningitis.
- Ivermectin appears to be a more effective treatment for eradicating strongyloidiasis than thiabendazol.
- Prompt diagnosis and effective antiparasitic treatment are crucial for managing this severe complication.
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