Pyloric Stenosis

Pyloric stenosis is a problem that causes forceful vomiting. It affects babies from
birth to 6 months of age. Symptoms usually start around 3 to 5 weeks of age. It can
lead to dehydration. This condition is the second most common reason why newborns
have surgery.

The pylorus is the lower part of the stomach that connects to the small intestine.
In pyloric stenosis, the muscles in that part of the stomach enlarge. This causes
the opening of the pylorus to get narrow. This stops food from moving from the stomach
to the intestine.

Pyloric stenosis is a birth defect. This means that your child is born with it.

This condition may run in some families. It’s a multifactorial trait. This means that
many things caused it. The factors are often both genetic and environmental.

Pyloric stenosis is 4 times more common in males than females.

A child is more likely to have this condition if the child:

  • Takes certain medicines by mouth in the first 6 weeks of life. These medicines include
    antibiotics called azithromycin or erythromycin.
  • Bottle-feeds early
  • Has a family history of pyloric stenosis
  • Is a boy, especially firstborn
  • Is Caucasian
  • Has a mother who smokes
  • Is premature

The most common symptom is
forceful, projectile vomiting. This kind of vomiting is different from spit-up or
a wet
burp. Large amounts of breastmilk or formula are vomited. It may go several feet across
a room.

Your baby’s vomit may look curdled. This is because the milk stays in the stomach
and doesn’t move to the small intestine. The stomach acid curdles it.

Other symptoms may include:

  • Weight loss
  • Being very hungry despite vomiting
  • Lack of energy
  • Fewer bowel movements
  • Constipation
  • Frequent stools that contain mucous

A baby with pyloric stenosis is often very hungry and wants to eat.

The symptoms of this condition may
be similar to symptoms of other health problems. Make sure your child sees their
healthcare provider for a diagnosis.

Your child’s healthcare provider
will check their health history. They will also give your child an exam. Your child
need tests to diagnose pyloric stenosis.

Blood tests

These tests check if your child
is dehydrated or has mineral imbalances.

Abdominal ultrasound

This test uses sound waves to
show images of your child’s internal organs and of blood flow through various
vessels. And it may show if the pylorus muscles are thickened.

Abdominal X-rays

This test shows images of your
child’s internal tissues, bones, and organs.

Upper gastrointestinal (GI) series

An upper GI series looks at the
organs in the upper part of your child’s digestive system. These include the
esophagus, stomach, and duodenum. The duodenum is the first section of the small
intestine. For this test, your child will swallow barium. This is a metallic liquid
that coats the inside of the organs. This helps them show up on an X-ray. Then your
child’s healthcare provider will take an X-ray of these organs.

Treatment will depend on your child’s symptoms, age, and general health. It will also
depend on how severe the condition is.

Children with this condition must have surgery. But your child’s dehydration and mineral
imbalances may need to be treated first. Water and minerals can be replaced through
intravenous (IV) fluid.

Once your baby is no longer
dehydrated, they will have surgery. Your child will need anesthesia. Their surgeon
make a small cut (incision) above your baby’s navel. Then the surgeon will fix the
pyloric muscle.

Your baby will stay in the hospital
for 2 to 3 days. Most babies get better quickly after surgery. Your baby will likely
able to drink only clear liquids such as an electrolyte drink at first. But feedings
often started within 4 hours of the procedure.

Babies may still vomit for several days after surgery. This is because of swelling
of the surgical site of the pyloric muscle. The swelling often goes away within a
few days.

Most babies will be able to have normal feedings by the time they leave the hospital.

This condition can cause dehydration. When babies vomit often, they don’t get enough
fluids to meet their nutritional needs. Minerals that the body needs are also lost
through vomit. These include potassium and sodium. Babies who are dehydrated and don’t
have enough minerals can get sick very quickly.

Pyloric stenosis can also cause
weight loss. A baby who vomits most of or all of their feedings won’t gain enough
to stay healthy.

Babies who have surgery for this condition often have no long-term problems. Pyloric
stenosis usually doesn’t reoccur.

Call your child’s healthcare provider right away if your baby has forceful, projectile

  • Pyloric stenosis is a problem that causes forceful vomiting in babies from birth to
    6 months of age. It can lead to dehydration.
  • In pyloric stenosis, the muscles
    in the stomach that connect to the small intestine thicken. This causes the opening
    of the pylorus to become narrow. This stops food from moving from the stomach to the
  • Babies with this condition must have surgery to fix it.
  • After surgery, most babies have no long-term problems from pyloric stenosis.

Tips to help you get the most from a visit to your child’s healthcare provider:

  • Know the reason for the visit and what you want to happen.
  • Before your visit, write down questions you want answered.
  • At the visit, write down the name of a
    new diagnosis and any new medicines, treatments, or tests. Also write down any new
    instructions your provider gives you for your child.
  • Know why a new medicine or treatment is prescribed and how it will help your child.
    Also know what the side effects are.
  • Ask if your child’s condition can be treated in other ways.
  • Know why a test or procedure is recommended and what the results could mean.
  • Know what to expect if your child does not take the medicine or have the test or procedure.
  • If your child has a follow-up appointment, write down the date, time, and purpose
    for that visit.
  • Know how you can contact your child’s provider after office hours. This is important
    if your child becomes ill and you have questions or need advice.