Pure Esophageal Atresia (Atresia or Stenosis)

Pure Esophageal Atresia (Atresia or Stenosis) is a birth defect affecting the esophagus, the tube that carries food from the mouth to the stomach. In this condition, the esophagus is either completely blocked or narrowed, preventing food from passing normally. This causes problems with feeding and swallowing soon after birth. Babies with this condition often have difficulty swallowing saliva and may drool excessively. The condition primarily affects the digestive system and can lead to serious complications like choking or aspiration. Early diagnosis is important to manage feeding and prevent lung infections. Treatment usually involves surgery to restore esophageal continuity.

Pure Esophageal Atresia (EA) is a congenital malformation characterized by a complete discontinuity of the esophageal lumen without a distal tracheoesophageal fistula. It results from failure of the embryonic foregut to properly canalize and separate into the esophagus and trachea during development. The core pathology is an interrupted esophageal segment, typically with a blind-ending proximal pouch and no connection to the stomach. This anomaly leads to obstruction of the upper gastrointestinal tract, causing feeding intolerance and risk of aspiration pneumonia. It is distinct from EA with tracheoesophageal fistula, which is more common. The condition is clinically significant due to its impact on neonatal feeding, respiratory complications, and the need for early surgical correction. Diagnosis is often suspected based on clinical presentation and confirmed by imaging studies.