A new endoscopic keel placement technique for anterior laryngeal web treatment in a child with a large posterior mediastinal mass: A case report

Congenital laryngeal webs are rare and characterized by feeble cries or dysphonia. However, if these webs are too large, it can cause stridor and respiratory distress. It is reported that this condition is associated with microdeletion of the 22q11 chromosome. Here, we report a case in which a large mediastinal mass obscured the symptoms of a large laryngeal web. Administering general anaesthesia to the child was associated with significant risk. After web resection, a novel technique was used to place a sialistic keel in the larynx to prevent further scarring and web formation. The suture of the keel was placed outside the thyroid cartilage to facilitate easy removal at six weeks under sedation without requiring re-intubation.