(Pyloric Stenosis Repair; Pyloromyotomy)
Pronounced: py-LOR-oh-plah-stee, py-LOR-ik stuh-NOH-sis, py-LOR-oh-MY-ah-ta-me
by Daus Mahnke, MD
Pyloroplasty is a surgery to correct a narrowing of the pyloric sphincter. The pylorus is a muscular area that forms a channel between the stomach and intestine. Normally, food passes easily from the stomach into the intestine through this sphincter.
Reasons for Procedure TOP
The pylorus sphincter can become narrowed, usually from an enlargerment of the muscle. The condition is called pyloric stenosis. It can cause severe symptoms such as nausea, vomiting, and dehydration. Narrowing of the pylorus can be the result of scarring from ulcers, a hiatal hernia, a mass, such as cancer, or inflammatory diseases.
Pyloric stenosis may be a serious condition. Pyloroplasty is often necessary to treat it.
Possible Complications TOP
Problems from the procedure are rare, but all procedures have some risk. Your doctor will review potential problems, like:
Before your procedure, talk to your doctor about ways to manage factors that may increase your risk of complications, such as:
What to Expect TOP
Prior to Procedure
Your surgery will be done using general anesthesia. You will be asleep.
Description of Procedure TOP
An incision will be made in the upper part of your abdomen. The pylorus will be exposed. Your doctor will cut through the pyloric muscle. The sphincter will be sewn back together in a way that will make the opening wider. The abdominal muscles will be sewn back together. The skin will be closed with stitches or staples.
If your pyloroplasty is done because you have an ulcer, other procedures may be done at the same time.
Immediately After Procedure TOP
After the surgery, you will be monitored in a recovery area for about 1-2 hours.
How Long Will It Take? TOP
About 1-2 hours
How Much Will It Hurt? TOP
Anesthesia will prevent pain during surgery. Pain and discomfort after the procedure can be managed with medications.
Average Hospital Stay TOP
The usual length of stay is 1-3 days. Your doctor may choose to keep you longer if complications arise.
Post-procedure Care TOP
At the Hospital
You will gradually return to a normal diet. Before you go home, a nurse will teach you how to take care of your surgical incision.
During your stay, the hospital staff will take steps to reduce your chance of infection, such as:
There are also steps you can take to reduce your chance of infection, such as:
Call Your Doctor TOP
Call your doctor if any of these occur:
If you think you have an emergency, call for medical help right away.
American Academy of Family Physicians
American Gastroenterological Association
Canadian Association of Gastroenterology
Dimitrios M, et al. Laparoscopic Pyloroplasty in Idiopathic Hypertrophic Pyloric Stenosis in an Adult. JSLS. 2000 Apr-Jun; 4(2): 173–175.
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Khatri VP, Asensio JA. Operative Surgery Manual. 1st ed. Philadelphia, PA: WB Saunders; 2003.
Townsend CM. Sabiston Textbook of Surgery. 17th ed. St. Louis, MO: WB Saunders; 2004.
Yamada T. Textbook of Gastroenterology. 4th ed. Philadelphia, PA: Lippincott, Williams, and Wilkins; 2003.
6/3/2011 DynaMed's Systematic Literature Surveillance
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Mills E, Eyawo O, Lockhart I, Kelly S, Wu P, Ebbert JO. Smoking cessation reduces postoperative complications: a systematic review and meta-analysis. Am J Med. 2011;124(2):144-154.e8.
Last reviewed November 2012 by Daus Mahnke, MD
Last Updated: 1/22/2014