NBT test in children with subglottic laryngitis

Michał Grzegorowski, Jarosław Antyborzec, Jarosław Szydłowski

Summary
In 1968 Park and co-workers introduced the NBT test which was used in recognition of bacterial infection. Subglottic laryngitis (SL) is caused by viruses, but in the second stage of this disease bacterial infection may occur.
The aim of this study is assesment of the value of the NBT test in children with SL before and after treatment.
Examination of the values given by the NBT test were performed twice in 60 children with SL and once in 26 children as the control group. We observed a statistical difference between the results of the test in children with SL by admission and after 57 days of treatment.
According to the results of the test in children under 3 years of age, especially in a severe case of SL, antibiotic treatment is recommended.

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