About Pyloric Stenosis

Overview

Pyloric stenosis is a rare condition that occurs when the muscular valve called the pylorus, located at the bottom of the stomach, thickens and narrows. This narrowing makes it difficult for food and fluids to pass through from the stomach to the small intestine for digestion and absorption. Pyloric stenosis typically affects infants below 6 months of age, although it can occur at any time from birth onward. Symptoms of pyloric stenosis include projectile vomiting, stomach cramps, constipation, and dehydration. If you suspect your child may have pyloric stenosis, it is important to speak with a healthcare provider for diagnosis and treatment. Surgery is usually required to correct pyloric stenosis and improve digestive function.

Causes and Risk Factors

The causes of pyloric stenosis are not fully understood. However, certain risk factors have been identified that may increase the likelihood of developing pyloric stenosis, including:

Non-modifiable risk factors are risk factors that cannot be changed. Non-modifiable risk factors for pyloric stenosis include:

Family history and genetics: Babies with a family history of pyloric stenosis, especially siblings and identical twins, have a higher risk.
Sex: Male infants are four times more likely to develop pyloric stenosis than females.
Firstborn infants: Pyloric stenosis is more common among firstborn infants.

Modifiable risk factors are risk factors that can be changed or influenced.

Modifiable risk of pyloric stenosis include:

Smoking during pregnancy: It can double the risk of having a baby with pyloric stenosis.
Antibiotic use: Certain antibiotics (medications that fight bacteria) taken during the first two weeks of life, such as azithromycin and erythromycin, can increase the chances of developing pyloric stenosis.

It's important to note that while these risk factors may increase the likelihood of developing pyloric stenosis, they do not guarantee its occurrence. If you have concerns about pyloric stenosis or its risk factors, it's best to speak with a healthcare provider for personalized advice.

Symptoms

The most common early symptoms of pyloric stenosis include:

Projectile vomiting
Abdominal cramps: Wave-like ripples may be noticed in the baby's upper abdomen (stomach) after eating, as the stomach muscles work harder to push food into the small intestine.
Dehydration: Frequent vomiting can lead to water loss, causing dehydration. Signs of dehydration in babies include fewer wet diapers, crying without tears, and lethargy.
Constant hunger: Babies with pyloric stenosis may always feel hungry, especially after throwing up, because they are unable to keep milk or food down.
Constipation: Difficulty emptying bowels due to inadequate food and water reaching the small intestine.

As pyloric stenosis progresses or becomes more severe, additional symptoms may occur:

Increased frequency and forcefulness of vomiting
Weight loss or poor weight gain
Sunken fontanelles (soft spots on the baby's head)
Decreased urine output
Irritability and fussiness
Fatigue and weakness

If you suspect your child has Pyloric Stenosis or if symptoms worsen, it is important to consult a doctor for proper evaluation and management.

Diagnosis

To diagnose pyloric stenosis, the following examinations, tests, and procedures are commonly performed:

Physical examination: After getting an accurate medical history, the healthcare provider will check for an abdominal mass around the size of an olive in the upper abdomen.
Blood tests: These can confirm dehydration or an electrolyte imbalance.
Abdominal ultrasound: This imaging test provides clear images of the thickened pylorus muscle.

Additional examinations, tests, and procedures to determine the stage or severity of pyloric stenosis may include upper gastrointestinal series, a test that involves the baby drinking a barium liquid before having a special stomach X-ray. It helps visualize any blockage.

It's important to note that these are general procedures used to diagnose and determine the severity of pyloric stenosis. The specific tests and procedures recommended may vary depending on individual circumstances. It is always best to speak with a pediatrician or healthcare provider for personalized advice.

Treatment Options

The goals of treatment for pyloric stenosis are to relieve the obstruction in the pylorus and restore normal feeding and growth in infants. Here are the recommended treatments and how they work to achieve the treatment goals:

Surgical pyloromyotomy: This is the gold standard treatment for pyloric stenosis. It can be performed either through open surgery or laparoscopic surgery. During pyloromyotomy, a surgeon cuts through part of the thickened muscle in the pylorus, creating a pathway for food and liquid to pass through.
Medications: In some cases, atropine sulfate may be used as a conservative treatment option. However, it has varying success rates and is not commonly used.
Therapeutic procedures: Initial treatment may involve placing a nasogastric tube to relieve any fluid or air buildup in the stomach. This helps to relieve symptoms and correct electrolyte imbalances.
Health behavior changes: After surgery, infants may need to refrain from feedings for several hours to reduce the risk of vomiting while under anesthesia. Gradually resuming feedings is important for their recovery.

It's important to note that these treatments should be discussed with a healthcare prvider who can provide personalized advice based on individual circumstances. Medication dosing (how and when medication is taken) may be affected by many factors, and other side effects can occur. Check with your healthcare provider about dosing for your individual situation. Other side effects can occur. Check with your healthcare professional or read the information provided with your medication for additional side effect information.