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Esophageal atresia (or Oesophageal atresia) is a congenital medical condition (birth defect) which affects the alimentary tract. It causes the esophagus to end in a blind-ended pouch rather than connecting normally to the stomach.
Esophageal atresia (EA) is a variety of congenital anatomic defects that are caused by an abnormal embryological development of the esophagus. Anatomically characterized by a congenital obstruction of the light of the esophagus with interrupted the continuity of the esophageal wall. The esophagus is divided into two pouch blind, an upper and lower, which may or may not communicate with the tracheobronchial tree, through fistulous tract called Tracheoesophageal Fistula (TEF).
It occurs in approximately 1 in 4425 live births.
Congenital esophageal atresia (EA) represents a failure of the esophagus to develop as a continuous passage. Instead, it ends as a blind pouch. Tracheoesophageal fistula (TEF) represents an abnormal opening between the trachea and esophagus. EA and TEF can occur separately or together. EA and TEF are diagnosed in the ICU at birth and treated immediately.
The presence of EA is suspected in an infant with excessive salivation (drooling) and in a newborn with drooling that is frequently accompanied by choking, coughing and sneezing. When fed, these infants swallow normally but begin to cough and struggle as the fluid returns through the nose and mouth. The infant may become cyanotic (turn bluish due to lack of oxygen) and may stop breathing as the overflow of fluid from the blind pouch is aspirated (sucked into) the trachea. The cyanosis is a result of laryngospasm (a protective mechanism that the body has to prevent aspiration into the trachea). Over time respiratory distress will develop.
If any of the above signs/symptoms are noticed, a catheter is gently passed into the esophagus to check for resistance. If resistance is noted, other studies will be done to confirm the diagnosis. A catheter can be inserted and will show up as white on a regular x-ray film to demonstrate the blind pouch ending. Sometimes a small amount of barium (chalk-like liquid) is placed through the mouth to diagnose the problems.
Treatment of EA and TEF is surgery to repair the defect. If EA or TEF is suspected, all oral feedings are stopped and intravenous fluids are started. The infant will be positioned to help drain secretions and decrease the likelihood of aspiration. Babies with EA may sometimes have other problems. Studies will be done to look at the heart and spine. Sometimes studies are done to look at the kidneys.
Surgery to fix EA is rarely an emergency. Once the baby is in condition for surgery, an incision is made on the side of the chest. The esophagus can usually be sewn together. Following surgery, the baby may be hospitalized for a variable length of time. Care for each infant is individualized.
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