Prenatal diagnosis of airway compromise: EXIT (ex utero intra-partum treatment) and foetal airway surgery.

Four cases of potential airway obstruction diagnosed in the early antenatal period are presented. Their management is outlined, and the need for a multidisciplinary team approach to these problems is highlighted. The experience of the ex-utero intrapartum treatment (EXIT) procedure is presented, and the first attempt at intra-uterine tracheal surgery is introduced.