Croup is a viral infection that causes erythema and edema of the tracheal walls and narrowing of the subglottic region. It is often characterized by an acute, rapidly progressing respiratory disease.
It is a medical emergency in children and requiring immediate treatment.
Most common causes are parainfluenza virus 1&2 and respiratory syncytial virus.
Occurrence of symptoms is usually at night and with abrupt onset and improve during daytime.
Interim analyses of the INBUILD trial presented at ATS 2020 continue to reflect the benefit of the tyrosine kinase inhibitor nintedanib for individuals with progressive fibrosing interstitial lung diseases (ILDs).