What are the early symptoms of esophageal atresia?

Early Symptoms. As a clinical neonatologist, the first symptom of esophageal atresia is the inability to pass an orogastric tube into the infant's stomach. I do this routinely in all newborn babies i examine in the delivery room. If the orogastric tube coils back and returns to the oral cavity, there is esophageal atresia. Determining if it is accompanied by a fistula with the trachea requires imaging studies.