Pyloric stenosis

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By Mayo Clinic staff

Pyloric stenosis is typically treated with a surgical procedure known as pyloromyotomy. Surgery is often scheduled as soon after diagnosis as possible, sometimes even on the same day.

Pyloromyotomy is done under general anesthesia. Traditionally, the procedure was done through a small incision in the baby's right upper abdomen or around the baby's navel. Today, however, pyloromyotomy is often done laparoscopically. With laparoscopic surgery, a slender viewing instrument (laparoscope) is inserted through a small incision near your baby's navel. The laparoscope is equipped with a laser and small surgical instruments. Recovery from the laparoscopic procedure is quicker than is recovery from a traditional open surgery, and the procedure leaves a smaller scar.

Before surgery, your baby may be given intravenous (IV) fluids to treat dehydration and restore electrolytes. During the procedure, the surgeon cuts and spreads apart the outside layer of the thickened pyloric muscles. The inside lining of the pylorus is left intact. After surgery, your baby may receive IV fluids for a few hours or until he or she can tolerate normal feedings.

Potential complications of surgery include bleeding and infection. If the pyloric muscles aren't cut completely, your baby's signs and symptoms may return. Rarely, a leak in the intestine is possible. Pyloromyotomy doesn't increase the risk of future stomach or intestinal problems.

Signs and symptoms of pyloric stenosis usually stop within about 24 hours after surgery. Most infants return home within 48 hours. Your baby's doctor may request a follow-up visit after surgery to check on your baby's recovery.

DS00815

Aug. 23, 2008

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