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Oesophageal atresia and tracheo-oesophageal fistula (EA/TEF)

A newborn who drools and chokes on feeds and whose gastric tube stops and coils in the upper chest has oesophageal atresia; gas in the abdomen means there is a distal fistula (the common type), and a gasless abdomen means pure atresia with a long gap.

Why it matters in the exam

The exam asks about the common type (proximal atresia with a distal fistula, about 85%), the associated anomalies (VACTERL — vertebral, anorectal, cardiac, tracheo-oesophageal, renal and limb), the work-up before surgery — especially an echocardiogram, which finds a heart defect and also the side of the aortic arch, which decides the side of the thoracotomy — and late complications: anastomotic stricture, reflux, recurrent fistula and tracheomalacia.

The Gross types: C — atresia with a distal fistula (about 85%); A — pure atresia without a fistula (about 8%), gasless abdomen and a long gap; E — an H-type fistula without atresia (about 4%), which presents with coughing on feeds and recurrent pneumonia, is diagnosed by a prone contrast study with gradual tube pull-back or by bronchoscopy, and is usually repaired through a neck approach. Types B and D are rare. In pregnancy there is sometimes polyhydramnios and a small or absent stomach bubble.

The classic operation is a right thoracotomy (or thoracoscopy), an extrapleural approach, ligation of the fistula and primary anastomosis. With a long gap a gastrostomy is made, the upper pouch is kept on continuous suction and a delayed primary anastomosis is done after a few months. Anastomotic stricture is the common late complication and is treated by dilatation; reflux is very common and needs acid suppression and follow-up, including endoscopy over the years because of metaplasia.

Until surgery the upper pouch is kept empty by continuous suction through a double-lumen (Replogle) tube, the head of the bed is raised, positive-pressure ventilation is avoided where possible because it can inflate the stomach through the fistula, and the rest of VACTERL is sought: renal ultrasound, a spine X-ray and examination of the anus. Prognosis depends mainly on birth weight and a major heart defect (Spitz classification): weight above 1500 grams without a major heart defect — near-complete survival, and both factors together — the highest risk.

Key points

Summary table

TypeDescriptionFrequencyExam clue
CProximal atresia and distal fistulaAbout 85%Coiled tube and gas in the abdomen
APure atresia without a fistulaAbout 8%Gasless abdomen, long gap
E (H)Fistula without atresiaAbout 4%Coughing on feeds, recurrent pneumonia
B and DProximal fistula (with or without a distal one)RareSometimes found only at bronchoscopy

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Sources

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Reviewed by the Examqo AI Professor · 2026-11-06. The text may contain errors; when in doubt, check the source.