Pyloroplasty is surgery to make the pylorus opening wider. The pylorus is the opening between the stomach and the intestines.
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The pylorus opens and closes to allow food to pass to the intestines. A problem called pyloric stenosis can make this area thicker. This can make it hard for food to pass. This surgery is done to widen the opening.
Problems are rare, but all procedures have some risk. The doctor will go over some problems that could happen, such as:
Things that may raise the risk of problems are:
The surgical team may meet with you to talk about:
General anesthesia will be given. Your child will be asleep.
Several small incisions will be made in the abdomen. Surgical tools will be inserted through these incisions. An incision will be made in the muscle of the pylorus. The pylorus will then be sewn back together in a wider shape. The incisions will be closed with stitches or staples. A bandage will be placed over the area.
This procedure may also be done as an open procedure. This uses a larger incision.
1 to 2 hours
Pain and swelling are common in the first week. Medicine and home care can help.
The usual length of stay is 1 to 3 days. If your child has any problems, they may need to stay longer.
Right after the procedure, the staff may:
During your child's stay, the hospital staff will take steps to lower your child's risk of infection, such as:
There are also steps you can take to lower your child's risk of infection, such as:
It will take a few weeks for the incisions and muscles to fully heal. Physical activity may need to be limited during this time. Your child may need help with daily activites and delay their return to school.
Call the doctor if your child is not getting better or has:
If you think your child has an emergency, call for medical help right away.
American College of Gastroenterology
Family Doctor—American Academy of Family Physicians
Canadian Association of Gastroenterology
Hypertrophic pyloric stenosis. EBSCO DynaMed website. Available at: https://www.dynamed.com/condition/hypertrophic-pyloric-stenosis. Accessed September 8, 2021.
Hypertrophic pyloric stenosis. Merck Manual Professional Version website. Available at: https://www.merckmanuals.com/professional/pediatrics/gastrointestinal-disorders-in-neonates-and-infants/hypertrophic-pyloric-stenosis. Accessed September 8, 2021.
Last reviewed July 2021 by EBSCO Medical Review Board Kari Kuenn, MD Last Updated: 9/8/2021