Succinct key points:
Children with type I and II laryngeal webs were usually older when they presented to the hospital.
Children with type III and IV laryngeal webs were more likely to have subglottic stenosis and needed to undergo tracheotomy earlier.
Children with type III and IV laryngeal webs usually had a record of multiple visits to the hospital with multiple treatments.
The implantation of a T-tube and reconstruction of the cricoid cartilage play a crucial role in the treatment of congenital laryngeal webs with subglottic stenosis
Children with type III and IV webs may also present with other problems of the throat or the whole body, including subglottic stenosis, vocal cord paralysis.