The Outcome of Immediate Administration of Dexamethasone in Children With Croup (Laryngotracheobronchitis) in King Abdullah Specialized Children's Hospital.

Background Croup is an inflammatory disease that affects the upper respiratory tract involving the upper airways of the lungs (bronchial tubes), vocal cords (larynx), and windpipe (trachea). In Canada, it is considered one of the major causes of respiratory diseases in the first 10 years of life. A wide range of viruses like common cold and flu (influenza) infections can cause croup (laryngotracheobronchitis).