Tracheomalacia is a condition characterized by flaccidity of the tracheal support cartilage which leads to tracheal collapse especially when increased airflow is demanded. There are three types:
- Type 1 - congenital, sometimes associated with tracheo-esophageal fistula
- Type 2 - extrinsic compression sometimes due to vascular rings
- Type 3 - acquired due to chronic infection or prolonged intubation or inflammatory conditions like relapsing polychondritis
Some cases require surgery. Tracheostomy and tracheal stents have been used.