Overview

What is pulmonary stenosis in children?

The heart defect that is born (congenital or abnormal) is pulmonary stenosis. It is formed when the pulmonary valve of a baby does not develop normally in the first eight weeks of pregnancy. This valve acts like a bridge that separates the pulmonary artery and the right ventricle. On it are three flaps or leaflets that work like a one-way door in normal function. This way, they don't even block blood flow from the pulmonary artery to the right ventricle or vice versa.

Opening the flaps and maintaining normal blood flow is usually tricky in pulmonary stenosis. There might be some adhesiveness between the flaps. Alternatively, the flaps may be too thick to allow the valve to open fully. In some situations, the valve narrows. Sometimes, the problem lies in the area immediately below and above the valve rather than in the valve leaflets.

The degree of blood flow blockage in pulmonary stenosis varies. Probably, if a child has severe pulmonary stenosis, the symptoms are well-defined, and the child is relatively unwell. A child with minor pulmonary stenosis may have few or no symptoms. Later in life, they may develop symptoms. They may progress over time with worsening obstruction and its symptoms. Pregnancy is not typically a problem with this disease.

Pulmonary stenosis is often associated with other complex congenital heart defects.

How does a child know if they have pulmonary stenosis?

Many children who have pulmonary stenosis have no signs or symptoms. The worse a child's stenosis is, the higher their chances are of experiencing symptoms. The most common symptoms include the following:

Forceful or fast breathing
Cyanosis: a bluish tint around the lips or fingers because of low oxygen
Trouble breathing
Fatigue, especially after exercise or exertion
Rapid pulse
Enlarged face, abdomen, ankles, feet, or legs
Feeling faint
Chest pain

Many pulmonary stenosis symptoms can be similar to those of other illnesses. You want your child to see a physician to determine a correct diagnosis.

What are the causes and risks of pulmonary stenosis in a child?

Pulmonary stenosis occurs when the pulmonary valve or the tissue above or below it fails to develop fully during the first eight weeks of pregnancy. The reason for this is unknown.

Some congenital heart defects are hereditary conditions that tend to run in families.

What are the diagnoses and tests for pulmonary stenosis in children?

The physician will ask you questions about your child's medical history and symptoms. They will check on your child medically. The physician will auscultate your child's chest with a stethoscope. They can find an abnormal heart rhythm, also called a heart murmur. Other signs or symptoms may be identified by them as well.

The healthcare provider might refer the child to a pediatric cardiologist. He is a doctor who has a specialty in treating children's heart problems. Your child will also be assessed by the cardiologist. They will listen attentively to hear some murmurs in the heart. The characteristics of the cardiac murmur can help point to a diagnosis. There may be some tests for your child, including:

Chest radiograph- A chest X-ray may show heart or pulmonary artery abnormalities.
ECG or electrocardiogram—An ECG captures the electrical activity of the heart. It detects stress on cardiac muscle and may display irregular rhythms or arrhythmias. While the ECG is usually normal, anomalies associated with this pulmonary stenosis may also be displayed.
Echocardiography, or "echo", creates a moving picture of the heart and heart valves using sound waves (ultrasound). The test is most helpful in diagnosing pulmonary stenosis.
Cardiac catheterization- To help your child relax, he/she is given medication.

The doctor places a thin, flexible tube called a catheter into a groin blood vessel. They advance it to the core. Measurements of blood pressure and oxygen in each of the heart's four chambers are made to assess the heart. In addition, the aorta and pulmonary artery are also imaged. To make it easier for the healthcare provider to see the inner architecture of the heart, contrast dye is also given in this test. If your child can be diagnosed through echocardiography, he or she may not need this test.

How is pulmonary stenosis in a child treated?

Most frequently, no treatment is necessary for mild pulmonary stenosis. Repair is indicated for moderate to severe stenosis.

Infants with these defects will be critically ill before repair of the defect and often must spend time in the ICU.

Some infants have such extreme stenosis that emergency repair is required. Prostaglandins will be administered to ensure adequate blood flow to the lungs. The ductus arteriosus will be dilate. Valve repair will come only after the stabilization of the child. The repair should be planned for a child when the stenosis is less severe. There are such repairs:

Valvotomy- This surgical procedure includes the removal of scar tissue from the leaflets of the pulmonary valve. The valve can now open as it should.
Valve replacement—The valve is surgically removed. A patch is quite often used to allow blood to flow from the right ventricle into the pulmonary artery. When the youngster grows into an adult, the pulmonary valve could have to be replaced.
Expansion of the patch-Narrow areas can be expanded by patches. They can be incorporated into the pulmonary artery or right ventricle.
Pulmonary Valve Replacement- There are occasions when the pulmonary valve must be replaced in some kids. One is allowed to use either a human or a pig tissue valve.

Any subsequent medical and dental treatments of children who have undergone valve replacements must be preceded by antibiotics.

What complications may result in a child?

Untreated, moderate to severe pulmonary stenosis causes problems. The right ventricle must apply more force to force blood past the pulmonary valve or the narrowed area. Over time, the right ventricle expands and cannot bear the added workload. It experiences cardiac failure and cannot pump well. Another possible problem is an irregular heartbeat, commonly called an arrhythmia.

How can I help my child live with pulmonary stenosis?

Children with pulmonary stenosis generally do exceptionally well. To prevent bacterial endocarditis infection of the heart lining and valves, your child's cardiologist may recommend antibiotics for some time. Your child will probably need to take these before medical or dental treatments.

A child may sometimes need treatments to open the valve. If complications arise during his teenage or young adulthood, your child may have to undergo replacement of his pulmonary valve.

At some point in time, throughout the life of your child, he will have to receive periodic care from a congenital cardiac care clinic.

Talk to your child's cardiologist about the prognosis for your child.

When should I call my child's healthcare provider?

Call your child's doctor if they've symptoms similar to

Breathing problems
Feeling tired
Lump of the legs, ankles, base, face, or belly (tummy).

Why Tender Palm Super-Speciality Hospital for Pediatric Pulmonary Stenosis?

Tender Palm Hospital has the most experienced team of Pediatric Cardiologists, Pediatric Cardiac Surgeons, and diagnostics with the latest and International standard infection control measures in Lucknow, India. The Pediatric Cardiac Science Centre team has decades of experience in successfully treating Pediatric Pulmonary Stenosis.