Pediatrics General 8614a4fa The most common type of congenital atresia is A Proximal blind end, distal end communicating with trachea B Distal blind end, proximal end communicating with trachea C Proximal and distal ends open and communicating with trachea D Both ends bleed High-Yield Explanation Type C is the most common type of tracheoesophageal fistula. It involves proximal esophageal atresia with distal TEF.