The H type fistula occurs in 8% of cases. Type A Oesophageal atresia without TOF (8%) Both segments communicate with trachea. 2. Type B Oesophageal atresia with proximal TOF (1%) Blind proximal segment of oesophagus connects with trachea by fistula. Distal end is blind 3. Type C Oesophageal atresia with distal TOF (84%) Distal segment of oesophagus is connected with trachea by fistula. 4. Type D- Oesophageal atresia with proximal & distal TOF. Both ends are blind & no communication (3%) 5. Type E- TOF without oesophageal atresia (4%) H- type