Esophageal Atresia/Tracheoesophageal Fistula
Esophageal atresia and tracheoesophageal fistula may occur separately or together, with five basic anatomic variants being encountered. Esophageal atresia occurs most often (>85%) in association with a distal tracheoesophageal fistula which passes from the carina to the lower esophageal segment. Less commonly, the fistula may connect the proximal esophageal segment with the trachea or separate fistulae may exist to both the proximal and distal segments. Alternatively, esophageal atresia occurs alone (5%) or a fistula may exist between the trachea and esophagus in the absence of esophageal atresia (5%). The fistula in this later type tends to be located high on the trachea. Neither the etiology nor the embryologic mechanism for these anomalies is clearly understood.
KeywordsEsophageal Atresia Tracheoesophageal Fistula Imperforate Anus Esophageal Segment Esophageal Pouch
Unable to display preview. Download preview PDF.