1707. Clinical Profile of Human T-Lymphotropic Virus Type I Infection in Pediatric Population in a Referral Hospital in Colombia

  • Mejia- Mertel J
  • Rojas -Hernandez J
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Abstract

Background. The Human T-lymphotropic virus type 1 (HTLV-1), affects around ten to twenty million people worldwide, predominantly in intertropical regions (Africa, Japan, Melanesia, Australia, and South America Pacific Coast). The most common disorders associated are T-cell leukemia/lymphoma (ALT) and HTLV-1- associated myelopathy (HAM). Studies have reported other clinical manifestations in HTLV-1, still studies are needed in pediatric population to improve diagnosis and treatment of infected patients. Methods. Descriptive, retrospective cohort study, conducted in our referral pediatric hospital in Cali, Colombia. Included pediatric patients (1 to 18 years of age) diagnosed with HTLV-1 infection, between January 2017 to March 2020. Results. Twelve patients were included, seven males and five females. Eleven patients were from and resided in the Colombian Pacific coast. Ten patients showed nutritional deficiencies. None showed clinical or laboratory signs of ALT, neither neurological symptoms or physical exam suggesting HAM. In terms of associated diseases and opportunistic infections, none had a positive HIV ELISA test, and stool tests were all negative for Strongiloydes. Four presented infective dermatitis, and two showed lesions suggesting scabies. Eight patients presented respiratory symptoms with chest CT scans showing signs of chronic inflammation, bronchiectasis, and subpleural bullae as the major findings. Additional tests were carried out in bronchoalveolar fluid, four had positive galactomannan test,suggesting pulmonary aspergillosis, two exhibited positive gene PCR testing for Mycobacterium tuberculosis. Regarding inflammatory diseases, one patient presented with symptoms of Inflammatory Bowl Disease, with biopsy confirming Crohn's disease. Another patient presente abrupt vision loss, diagnosed with Vogt Koyanagi Hadara Syndrome after ophthalmological evaluation. Conclusion(s): It is important to consider alternative manifestations of HTLV-1 infection in the pediatric population, including pulmonary disease, opportunistic co-infections, and inflammatory disorders. It is crucial to diagnose this disease in childhood to reach a better control of this neglected infection that affects predominantly vulnerable population in low-income countries. (Figure Presented).

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Mejia- Mertel, J., & Rojas -Hernandez, J. P. (2020). 1707. Clinical Profile of Human T-Lymphotropic Virus Type I Infection in Pediatric Population in a Referral Hospital in Colombia. Open Forum Infectious Diseases, 7(Supplement_1), S836–S837. https://doi.org/10.1093/ofid/ofaa439.1885

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