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Original ArticleOpen Access
Atresia of the Jejunum and Ileum: What is the Difference?
Tongsin A 
,
Anuntkosol M ,
Niramis R
,
Anuntkosol M ,
Niramis R Background: Atresia of the jejunum and ileum is one of the major causes of neonatal intestinal obstruction.
Most affected newborn infants present with bilious emesis and abdominal distention. Traditionally, jejunal
and ileal atresia have been grouped together as jejunoileal atresia.
Objective: To elucidate the difference between jejunal and ileal atresia.
Material and Method: A retrospective analysis of patients diagnosed with jejunal or ileal atresia, who were
treated at the Department of Surgery, Queen Sirikit National Institute of Child Health during January 1988 to
December 2007, was carried out.
Results: There were 74 patients with jejunal atresia and 68 patients with ileal atresia. The mean birth weight
and gestational age of patients with jejunal atresia were significantly lower than those with ileal atresia.
Antenatal perforation occurred more frequently in ileal atresia. Postoperative course was more prolonged
and mortality was higher in jejunal atresia. Prolonged ileus and anastomotic dysfunction requiring long-term
parenteral nutrition were the major causes of complications leading to death.
Conclusion: There were many differences between patients with jejunal atresia and those with ileal atresia.
The more compliant jejunal wall allows massive dilatation upon obstruction with subsequent loss of peristaltic
activity, thus poorer outcome in comparison with ileal obstruction. We suggest that atresia of the jejunum and
ileum be considered differently.
Keywords: Intestinal atresia, Jejunoileal atresia
Most affected newborn infants present with bilious emesis and abdominal distention. Traditionally, jejunal
and ileal atresia have been grouped together as jejunoileal atresia.
Objective: To elucidate the difference between jejunal and ileal atresia.
Material and Method: A retrospective analysis of patients diagnosed with jejunal or ileal atresia, who were
treated at the Department of Surgery, Queen Sirikit National Institute of Child Health during January 1988 to
December 2007, was carried out.
Results: There were 74 patients with jejunal atresia and 68 patients with ileal atresia. The mean birth weight
and gestational age of patients with jejunal atresia were significantly lower than those with ileal atresia.
Antenatal perforation occurred more frequently in ileal atresia. Postoperative course was more prolonged
and mortality was higher in jejunal atresia. Prolonged ileus and anastomotic dysfunction requiring long-term
parenteral nutrition were the major causes of complications leading to death.
Conclusion: There were many differences between patients with jejunal atresia and those with ileal atresia.
The more compliant jejunal wall allows massive dilatation upon obstruction with subsequent loss of peristaltic
activity, thus poorer outcome in comparison with ileal obstruction. We suggest that atresia of the jejunum and
ileum be considered differently.
Keywords: Intestinal atresia, Jejunoileal atresia
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