ABSTRACT
A1 C Oesophageal atresia (OA) is a condition in which the proximal and distal portions of the oesophagus do not communicate. The upper segment of the oesophagus is a dilated, blind-ending pouch with a hypertrophied muscular wall that typically extends to the level of the second to fourth thoracic vertebrae. TOF is an abnormal communication between the trachea and oesophagus. When associated with OA, the fistula most commonly occurs between the distal oesophageal segment and the trachea, just above the carina.
