A multicountry evaluation of the Xpert MTB/RIF assay for the diagnosis of intrathoracic tuberculosis in children using alternative specimens (nasopharyngeal aspirate and stool): A prospective cohort study conducted in Madagascar, Ivory Coast and Cameroon (TB Kids project).

IF 4.8 2区 医学 Q1 INFECTIOUS DISEASES
Rindra Vatosoa Randremanana, Mathurin Tejiokem, Niaina Rakotosamimanana, Valérie Donkeng Donfack, Verlaine Bolyse Mbouchong, Mirella Randrianarisoa, Aina Harimanana, Jean Voisin Taguebue, Suzie Tetang Ndiang, Valère Itchy, Annick Robinson, Lovaniaina Ravelomanana, Mbola Rakotomahefa, Dina Ranoharison, Man-Koumba Soumahoro, Brigitte Gicquel, Raymond N'Guessan, Sara Eyangoh, Voahangy Rasolofo, Marius Irie Bi Irie, Anabelle Bai-Orsot, Jaudel Francis Yuya Septoh, Serge Abogo, Mamy Serge Raherison, Andrianantenaina Rakotoson, Vaomalala Raharimanga, Patrice Piola, Paulo Ranaivomanana, Jean-Marc Collard, Gabrielle Prisca Emmylou Andrianah, Turibio Razafindranaivo, Reziky Tiandraza Mangahasimbola, Kathleen Victoir
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引用次数: 0

Abstract

Context: Tuberculosis (TB) diagnosis in children remains challenging due to the paucibacillary nature of specimens and the difficulty in obtaining suitable samples. The use of alternative samples like nasopharyngeal aspirate (NPA) and stools, alongside Xpert MTB/RIF testing, offers promising improvements.

Objective: This study aimed to assess the diagnostic performance of the Xpert MTB/RIF test on NPA and stool samples for detecting intrathoracic TB in children from Madagascar, Cameroon, and Ivory Coast.

Methods: Children under 15 years with suspected intrathoracic TB were enrolled in hospitals in these countries' capitals. Samples for analysis included standard specimens (gastric aspirate or sputum), NPA, stools, with additional HIV serology, TST tests, and chest X-rays. We used a composite reference standard to estimate the accuracy of the Xpert MTB/RIF test with alternative samples.

Results: Of 1146 children analysed, the sensitivity of Xpert MTB/RIF was 58.3% for NPA and 45.5% for stool samples, with high specificity more than 95%. The diagnostic performance of Xpert MTB/RIF with alternative samples did not differ according to age group or to HIV status.

Conclusion: The findings support the WHO's 2022 recommendation for using Xpert MTB/RIF with alternative samples in childhood TB diagnosis, underscoring its utility across different settings and HIV statuses.

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来源期刊
CiteScore
18.90
自引率
2.40%
发文量
1020
审稿时长
30 days
期刊介绍: International Journal of Infectious Diseases (IJID) Publisher: International Society for Infectious Diseases Publication Frequency: Monthly Type: Peer-reviewed, Open Access Scope: Publishes original clinical and laboratory-based research. Reports clinical trials, reviews, and some case reports. Focuses on epidemiology, clinical diagnosis, treatment, and control of infectious diseases. Emphasizes diseases common in under-resourced countries.
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