2022, Number 2
Risk factors for prediction of immunodeficiencies in children with tuberculosis. Experiencie of a third level hospital in Mexico
Cristerna TGH, Hernández SAA, Castillo BJI, González SN
Language: Spanish
References: 13
Page: 67-73
PDF size: 244.16 Kb.
ABSTRACT
Introduction: Tuberculosis (Tb) is an infectious disease caused by Mycobacterium tuberculosis which is particularly severe in children less than 5 years old and with immunocompromise. There is limited evidence regarding the clinical manifestations, radiographic findings, infection localization and species of microorganisms found in immunocompromised children with Tb. Material and methods: At the Instituto Nacional de Pediatría from 2012 to 2019 medical records of patients with Tb were analyzed. Patients with Bacillus Calmette-Guérin (BCG) vaccine adverse effects and incomplete medical information were excluded. Demographic data, type of immunocompromise, clinical findings, BCG vaccination, radiologic and microbiologic findings were documented. Frequencies between healthy and immunocompromised patients was compared using χ2 and a statistical significance of p ≤ 0.05 was established. Results: Data was obtained of 122 patients with Tb diagnosis of which 34.4% had immunocompromise. Fifty one percent of healthy and 61.9% of immunocompromised patients were male. Mean age (months) at presentation was 94.4 in healthy and 84.4 in immunocompromised patients. Children less than one year of age had 9.5 more probabilities of having immunocompromise, meanwhile, children from 5 to 9 years old had three times less risk of immunocompromise. Immune defects most frequently found were Chronic Granulomatous Disease (GCD) in 26.1%, Severe Combined Immunodeficiency (SCID) 23.8%, and IL-12/IFN-gamma pathways defect in 16.6%. Lymphadenitis was the most frequent localization in both groups; between both groups, disseminated Tb was more frequent in immunocompromised and bone Tb was more frequent in healthy children. Clinical findings were similar in both groups. Immunocompromised patients had more frequently abnormal radiographic findings and less frequently a TST positive test than healthy patients. M. bovis was more frequently found in immunocompromised patients than in healthy patients without statistical significance. Conclusions: Immunocompromised patients presented with Tb disease at younger ages, had more frequent disseminated disease and abnormal radiographic findings. Diagnosing children less than one year old with or without disseminated disease should make clinicians promptly assess for immunodeficiencies.REFERENCES