The spirit and joy of the holidays filled the halls of MassGeneral Hospital for Children (MGHfC) when the Sakash family delivered more than 400 toys, puzzles, games and stuffed animals to pediatric patients.
Congenital Heart Defects
When the heart or blood vessels near the heart do not develop normally before birth, it's called a congenital heart defect (CHD). Learn about different types of CHDs, and how to help young teens transition successfully from pediatric care to adult care.
Corrigan Minehan Heart Center
The Adult Congenital Heart Disease Program at the Massachusetts General Hospital Corrigan Minehan Heart Center offers personalized, lifelong care for adult patients with congenital heart disease, specializing in valve problems, heart failure, multidisciplinary surgery, arrhythmia and pregnancy.
Corrigan Minehan Heart Center
Cardiac surgeons within the Corrigan Minehan Heart Center provide patients with comprehensive and personalized care available in a manner that is as comfortable as possible for them and their families.
Department of Medicine
The Cardiopulmonary Exercise Testing (CPET) Lab provides comprehensive testing for patients with a variety of heart and lung conditions to determine whether the heart, lungs or skeletal muscles limit exercise capacity.
Corrigan Minehan Heart Center
The Cardiovascular Genetics Program at Massachusetts General Hospital specializes in clinical evaluations, genetic screening and personalized treatment for individuals with inherited cardiovascular diseases.
The Pediatric Cardiology Program at MassGeneral Hospital for Children provides diagnosis, treatment and long-term, follow-up care for infants, children and adolescents with all types of acquired and congenital cardiac conditions.
Congenital Heart Defects
What is a congenital heart defect?
A congenital heart defect (CHD) is when the heart or the blood vessels near the heart don't develop normally before birth.
CHDs occur in about 1 out of 100 babies. Most young people with these conditions are living into adulthood now. This is due to advances in testing, treatment, and surgeries.
In most cases, the cause of a congenital heart defect is unknown. Sometimes a viral infection in the mother causes the condition. The condition can be passed on through the parents' genes (genetic or hereditary). Some congenital heart defects are due to alcohol or drug use during pregnancy.
Most heart defects either cause an abnormal blood flow through the heart, or block blood flow in the heart or vessels. (A blockage is called stenosis and can occur in heart valves, arteries, or veins.) A hole between 2 chambers of the heart is an example of a very common type of congenital heart defect.
More rare defects include those in which:
The right or left side of the heart is not fully formed (hypoplastic)
There is only 1 ventricle
Both the pulmonary artery and aorta start from the same ventricle
The pulmonary artery and aorta start from the wrong ventricles
Types of congenital heart defects
There are many heart disorders that require clinical care by a doctor or other healthcare provider. Listed below are some of these conditions:
Aortic stenosis (AS)
In this condition, the aortic valve between the left ventricle and the aorta did not form correctly. It is narrowed. This makes it hard for the heart to pump blood to the body. A normal valve has 3 leaflets (cusps). But a stenotic valve may have only 1 cusp (unicuspid) or 2 cusps (bicuspid).
In some children, chest pain, abnormal tiredness, dizziness, or fainting may occur. Otherwise, most children with aortic stenosis have no symptoms. But even mild stenosis may get worse over time. A catheter-based procedure or surgery may be needed to fix the blockage. Or the valve may need to be replaced with a manmade one.
Pulmonary stenosis (PS)
The pulmonary valve is located between the right ventricle and the pulmonary artery. It opens to let blood flow from the right ventricle to the lungs. When a defective pulmonary valve does not open correctly, the heart has to pump harder than normal to overcome the blockage. Often the blockage can be corrected by a catheter-based procedure (balloon valvuloplasty). But some people need open heart surgery.
Bicuspid aortic valve
In this condition, a baby is born with a bicuspid valve which has only 2 cusps. (A normal aortic valve has 3 cusps that open and close). If the valve becomes narrowed, it's harder for the blood to flow through. Often the blood leaks backward. Symptoms often don't occur during childhood. But they are often found during the adult years.
This condition is a narrowing of the left ventricle just below the aortic valve. Normally, blood passes through it to go into the aorta. But subaortic stenosis limits the blood flow out of the left ventricle, often creating an increased workload for the left ventricle. Subaortic stenosis may be congenital. Or it may be caused by a form of heart muscle disease (cardiomyopathy).
Coarctation of the aorta (COA)
In this condition, the aorta is narrowed (constricted). This blocks blood flow to the lower part of the body. And it increases blood pressure above the constriction. Often there are no symptoms at birth. But symptoms can occur as early as the first week after birth. If severe symptoms of high blood pressure and heart failure develop, surgery is needed. Less severe cases may not be found until a child is older. But they can lead to long-term health problems if not fixed.
With some congenital heart defects, a baby is born with an opening in the wall (septum) that separates the right and left sides of the heart. This lets blood flow between the right and left chambers of the heart.
Atrial septal defect (ASD)
In this condition, there is an opening between the 2 upper chambers of the heart (the right and left atria). This causes abnormal blood flow through the heart. Children with an ASD have few symptoms. The ASD may be closed by catheter-based methods or open-heart surgery. Closing the atrial defect by open heart surgery in childhood can often prevent serious problems later in life.
Ventricular septal defect (VSD)
In this condition, there is a hole between the 2 lower chambers of the heart. Because of this hole, blood from the left ventricle flows into the right ventricle. This is due to higher pressure in the left ventricle. This causes extra blood to be pumped into the lungs by the right ventricle. This can create congestion in the lungs. Most small VSDs close on their own. But larger ones need surgery to fix the hole.
Cyanotic defects are defects in which blood pumped to the body contains less than normal amounts of oxygen. It causes the skin to turn blue. Infants with cyanosis are often called blue babies.
Tetralogy of Fallot
This condition is marked by 4 defects, including:
Ventricular septal defect (VSD) which lets blood pass from the right ventricle to the left ventricle.
A narrowing (stenosis) at or above the pulmonary valve. This partly blocks blood flow from the right side of the heart to the lungs.
The right ventricle is more muscular (hypertrophy) than normal.
The aorta is directly over the ventricular septal defect.
Tetralogy of Fallot is the most common defect causing cyanosis in people older than age 2. Most children with tetralogy of Fallot have open heart surgery before school age (often as babies) to close the VSD and remove the obstructing muscle. Lifelong medical follow-up is needed.
In this condition, there is no tricuspid valve. So no blood flows from the right atrium to the right ventricle. This condition is marked by the following:
A small right ventricle
Reduced pulmonary circulation
A surgical shunting procedure is often needed to increase blood flow to the lungs.
Transposition of the great arteries
In this embryologic defect, the positions of the pulmonary artery and the aorta are reversed. As a result:
The aorta starts from the right ventricle. So the oxygen-poor blood returning to the heart from the body is pumped back out to the aorta without first going to the lungs to pick up oxygen.
The pulmonary artery starts from the left ventricle. So the oxygen-rich blood returning from the lungs goes back out to the pulmonary artery and to the lungs again.
Medical care is needed right away to correct this condition.
Hypoplastic left heart syndrome (HLHS)
In this condition, the left side of the heart is not fully developed. The left side includes the aorta, aortic valve, left ventricle, and mitral valve. Blood reaches the aorta through a hole in a duct called the ductus arteriosus. This opening is called a patent ductus arteriosus (PDA). A PDA normally closes after birth. But when a child has HLHS, if the PDA closes, the baby will die. The baby often seems normal at birth, but the condition will be seen a few days of birth, as the PDA closes. Babies with HLHS have a gray (ashen) color, have little or no pulse in their legs, have trouble breathing, and can't feed. Treatment is surgical. Often a series of 3 surgeries is needed.
Patent ductus arteriosus (PDA)
This condition occurs when the PDA doesn't close normally after birth. This allows blood to mix between the pulmonary artery and the aorta. When it doesn't close, extra blood may flood the lungs and cause pulmonary congestion. PDA is often seen in premature babies.
In this defect, there is a downward displacement of the tricuspid valve (located between the upper and lower chambers on the right side of the heart) into the right bottom chamber of the heart (right ventricle). This leads to an enlarged atrium. That can cause rhythm abnormalities and heart failure. It's often linked to an atrial septal defect.
Who treats congenital heart defects?
For young children
Babies with congenital heart problems are followed by specialists called pediatric cardiologists. These doctors diagnose heart defects and help manage a child's health before and after surgery to fix the heart problem. Specialists who correct heart problems in the operating room are pediatric cardiovascular or cardiothoracic surgeons.
To achieve and keep the highest possible level of wellness, it's vital that people born with CHD who have reached adulthood transition to the appropriate type of cardiac care. The type of care required is based on the type of CHD a person has. People with simple CHD can often be cared for by a community adult cardiologist. People with more complex types of CHD will need to be cared for at a center that specializes in adult CHD.
Adults with CHD need guidance to plan for key life issues such as:
College and career
Activity and lifestyle
Family planning and pregnancy
End of life
Transitioning from pediatric care to adult care
The transition to adult care can start in your child's early teen years. It should be personalized for your child. Early on, you and the specialist should talk with your young teen about the idea that they will one day be responsible for their own care. This will depend on several factors, such as your child's ability to care for themselves. It's best started when your child is fairly healthy. Your child will need to be able to:
Talk in some detail about their condition
Take their medicine
Tell if their condition is changing or getting worse
A successful transition to adult care will review:
Knowledge about specific CHDs
Expectations for long-term outcomes and possible complications
Talk with the pediatric cardiologist about how to ensure a smooth transition from pediatric to adult care for your child. This can help your child
Ask your child's healthcare team (both specialist and primary care provider) when they typically transition young people to adult clinics.
Ask their advice about finding qualified doctors.
Plan for changes in insurance.
Understand the psychological challenges that can occur with teens when transitioning to an adult practice. These include nervousness, excitement, hope, and frustration.
If possible, your teen should have someone other than a family member to discuss impacts of their disease on dating and other social relationships.
Work with your child's pediatric clinic to make a list of goals for transition. Check in on these goals at each routine visit.
Talk with your child early and often about their role as a patient. Having your child take a greater role in their own healthcare over time is a big responsibility. Give your child positive reinforcement when they show independence in their own healthcare.
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