Leptospirosis in Children: A Systematic Review of Clinical and Laboratory Manifestations
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https://doi.org/10.56450/Keywords:
Leptospirosis, Child, Signs and Symptoms, Clinical Laboratory TechniquesAbstract
Background: Leptospirosis is a bacterial infection causing health risks in tropical and subtropical regions. It presents in children with varying clinical symptoms, from flu-like to severe multi-organ involvement. Early diagnosis is crucial for effective management, but is challenging due to non-specific symptoms and laboratory findings. Methods: An effective literature search was conducted across various electronic databases (e.g., PubMed, Scopus, ScienceDirect) for studies published up to 2024. Studies were selected based on predefined inclusion criteria focusing on pediatric cases of leptospirosis and their clinical and laboratory features. Results: A total of 9 studies met the inclusion criteria. Across studies, males were predominantly affected, particularly from rural or peri-urban areas with significant environmental exposure, such as contact with contaminated water or infected animals. The most common clinical features included fever, fatigue, myalgia, and gastrointestinal symptoms (nausea, vomiting, abdominal pain), with conjunctival suffusion being a hallmark in specific cases. Laboratory abnormalities often included elevated C-reactive protein (CRP), leukocytosis, thrombocytopenia, and markers of kidney injury such as increased BUN and creatinine. Conclusion: Leptospirosis remains an important pediatric health issue. The disease presents with nonspecific symptoms, making early diagnosis challenging. Renal involvement is common complication Severe cases with neurological or hematological manifestations require urgent attention.
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References
1. Day NP. Leptospirosis: epidemiology, microbiology, clinical manifestations, and diagnosis. In: UpToDate. Waltham (MA): UpToDate Inc.; updated Apr 1, 2025.
2. Rajapakse S. Leptospirosis: clinical aspects. Clin Med (Lond). 2022;22(1):14-17.
3. 3. Gizamba JM, Mugisha L. Leptospirosis in humans and selected animals in Sub-Saharan Africa, 2014–2022: a systematic review and meta-analysis. BMC Infect Dis. 2023;23(1):649. https://doi.org/10.1186/s12879-023-08574-5.
4. Andre-Fontaine G, Aviat F, Thorin C. Waterborne Leptospirosis: Survival and Preservation of the Virulence of Pathogenic Leptospira spp. in Fresh Water. Curr Microbiol. 2015 Jul;71(1):136-42. doi: 10.1007/s00284-015-0836-4. Epub 2015 May 24. PMID: 26003629.
5. Jahan A, Bhargava P, Kalyan RK, Verma SK, Gupta KK, Inbaraj S, et al. Serological and molecular study of Leptospira in pediatric patients at a tertiary care centre of northern India. Indian J Med Microbiol. 2021;39(2):245-248.
6. Orhan Ö, Elci H. Epidemiology, Clinical and Laboratory Findings of Pediatric Leptospirosis in Southeastern Turkey. Inn J Pediatr. 2024;34(3):e142968. doi: https://doi.org/10.5812/ijp-142968
7. Carvalho de Souza BR, da Rocha Carvalho E. Analysis of leptospirosis notifications in children and adolescents treated at a reference hospital in Santa Catarina from 2016 to 2021. Resid Pediatr. 13(1), 1-6. doi: https://doi.org/10.25060/residpediatr-2023.v13n1-909
8. Tomari K, Toyokawa T, Takahashi T, Kakita T, Okano S, Kyan H, et al. Childhood leptospirosis in an industrialized country: population-based study in Okinawa, Japan. PLoS Negl Trop Dis. 2018;12(3):e0006294.
9. Aygün FD, Avar-Aydın PÖ, Çokuğraş H, Camcıoğlu Y. Different clinical spectrum of leptospirosis. Turk J Pediatr. 2016;58(2):212-215.
10. De Thomasis S, Flodrops H, Llanas B, Casado ÉM, Cloarec S, Pietrement C, et al. Kidney injury in children and adolescents with leptospirosis in France. Nephrol Ther. 2022;18(3):189-194.
11. Kay-ann M. Clinical profile of pediatric patients with leptospirosis admitted at a tertiary government hospital. Pediatr Infect Dis Soc Philipp J. 2021;22(1):83-93.
12. Singh R, Dutta A, Sinhamahapatra TK, Mukhopadhyay U. Blindness as a presenting feature of leptospiral infection: a case report and review of literature. Indian J Ophthalmol Case Rep. 2024;4(1):240-242.
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