What are the long term effects?
Provided there is plenty of bowel length there are no long term consequences of small bowel atresia.
If a moderate amount of bowel is missing the baby may have rather loose and frequent bowel motions but this tends to improve over a few months. Following an operation there is always a small risk of future obstruction occurring. If your baby has a bilious vomit or a distended abdomen medical advice should be sought.