Research LettersDiagnosis of sputum-scarce HIV-associated pulmonary tuberculosis in Lima, Peru
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Cited by (58)
Infectious Diseases of Poverty in Children: A Tale of Two Worlds.
2016, Pediatric Clinics of North AmericaCitation Excerpt :The best specimen for diagnosis of pulmonary TB in a child with nonproductive cough is an early morning gastric aspirate obtained before ambulation or feeding; 3 gastric aspirates on 3 consecutive mornings are required. There are innovative ways of obtaining swallowed respiratory samples for TB diagnosis in children who cannot produce sputum, such as induction of sputum with aerosolized hypertonic saline58 and the string test.60,61 Nucleic acid amplification tests for the detection of mycobacterial DNA or RNA are in clinical use.
Use of string test and stool specimens to diagnose pulmonary tuberculosis
2015, International Journal of Infectious DiseasesNew specimens and laboratory diagnostics for childhood pulmonary TB: Progress and prospects
2011, Paediatric Respiratory ReviewsTuberculosis in children
2012, New England Journal of MedicineCitation Excerpt :Collecting specimens of spontaneously produced sputum in young children is problematic; gastric aspiration and sputum induction (with or without laryngopharyngeal suction) are feasible alternative methods of collection.36 The “string test” (which involves the use of an esophagogastroduodenal nylon yarn that can absorb swallowed sputum) works well in adults with HIV infection who have little sputum,37 and preliminary test results in children seem promising.38 Fine-needle aspiration biopsy is very useful in children with a peripheral lymph-node mass.39
String test: a potentially useful tool in the diagnosis of pulmonary tuberculosis in Brazilian children and adolescents
2022, Revista do Instituto de Medicina Tropical de Sao Paulo