Diagnostic efficiency Diaskintest and Quantiferon test in comparison with the Mantoux test for active tuberculosis in children in Belarus

Author(s):  
Zhanna Kryvasheyeva ◽  
Natalia Morozkina ◽  
Dzmitry Zhurkin ◽  
Nykolai Nykolenko
2018 ◽  
Vol 5 (4) ◽  
pp. 1609
Author(s):  
Akansha Arora ◽  
Anil Jain ◽  
B. S. Karnawat ◽  
Rakesh Kumawat

Background: Tuberculosis in children has been relatively neglected mainly because clinical diagnosis has low specificity, radiological interpretation is subject to inter-observer variability and the tuberculin skin test is a marker of exposure, not disease. The recent introduction of Cartridge based nucleic acid amplification test has significantly transformed the diagnostics of tuberculosis in adults but its application for Paediatric Tuberculosis is under evaluation. Therefore, authors conducted a study on role of gastric aspirate examination by ZN stain and Cartridge based nucleic acid amplification test in the diagnosis of childhood Tuberculosis.Methods: Authors did a prospective hospital-based study from Nov 2016 to Nov 2017 consisting of 100 randomly selected patients suspected of tuberculosis who had their gastric aspirate tested for CBNAAT and ZN stain for acid fast bacilli (AFB) along with Mantoux test and other routine investigations. Chi square test was used.Results: Culture positive tuberculosis was found in 21 out of 100 children. The sensitivity, specificity, positive predictive value and negative predictive value for CBNAAT were 76.1%, 98.7%, 94.1% and 93.9% and for ZN stain were 47.6%, 98.7%, 90.9% and 87.6% respectively. Positive history of contact (p value 0.0217), reactive Mantoux test (p value < 0.001) and low socioeconomic status were independently associated with a positive CBNAAT result.Conclusions: Analysis of gastric aspirate samples with CBNAAT is a sensitive and specific method for rapid diagnosis of pulmonary tuberculosis in children who cannot produce sputum. Compared with microscopy, CBNAAT offers better sensitivity and its scale up will improve access to tuberculosis diagnostics in children.


2021 ◽  
Vol 16 (2) ◽  
pp. 74-79
Author(s):  
M.D. Zvereva ◽  
◽  
S.S. Kanash ◽  
S.I. Petrova ◽  
V.A. Evseev ◽  
...  

Diagnosis of tuberculosis in children is challenging because of variable clinical symptoms and no specific signs. We report a case of tuberculous osteomyelitis of the ribs, which demonstrates difficulties associated with the diagnosis of generalized tuberculosis in an 8-year-old child (correct diagnosis was established after 1.3 years). Diagnostic procedures included: Mantoux test, skin test with recombinant tuberculosis allergen, computed tomography, pathomorphological and bacterioscopic testing. The patient presented with disease progression and lesions to the lung tissue, pleura, and ribs and did not respond to antibacterial therapy, hormones, and cytostatics. This required repeated diagnosis revision. The diagnosis of tuberculosis of the right 4th and 5th ribs was confirmed after surgery using bacterioscopic and immunohistochemical examinations. The child received comprehensive treatment in a specialized tuberculosis hospital and had positive dynamics. Despite the correct routing, low suspicion for tuberculosis in primary and secondary healthcare institutions has led to an insufficient use of currently available diagnostic methods and late diagnosis of tuberculosis in a child residing in a megapolis. Key words: generalized tuberculosis, children, tuberculosis of the rib, immunodiagnostics, diagnosis of tuberculosis, immunohistochemistry


Author(s):  
Linda Petrone ◽  
Angela Cannas ◽  
Francesco Aloi ◽  
Martin Nsubuga ◽  
Joseph Sserumkuma ◽  
...  

Author(s):  
Mikhail Vladimirsky ◽  
Valentina Aksenova ◽  
Sergey Smerdin ◽  
Nelli Khabibullina ◽  
Anastasia Samoilova

2019 ◽  
Vol 56 (4) ◽  
pp. 581-585
Author(s):  
Tanyel Zubarioglu ◽  
Banu Bayraktar ◽  
Nazan Dalgic ◽  
Mesut Sancar ◽  
Erkan Cakir ◽  
...  

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