What congenital heart abnormalities are the result of?
In most cases, the cause is unknown. Sometimes a viral infection in the mother causes the condition. The condition can be genetic (hereditary). Some congenital heart defects are the result of alcohol or drug use during pregnancy.
What virus causes congenital heart defects?
It’s also recognised that certain types of congenital heart disease run in families.
- Down’s syndrome is the most widely-known genetic condition that can cause congenital heart disease.
- Rubella (german measles) is an infectious condition caused by a virus.
What is the most common cause of cyanotic congenital heart disease?
Defects that cause cyanotic congenital heart disease TOF is the most common cause of CCHD. It’s a combination of four different defects. TOF includes: a hole between the right and left ventricles of the heart.
What causes congenital heart defects in infants?
Some babies have heart defects because of changes in their individual genes or chromosomes. CHDs also are thought to be caused by a combination of genes and other factors, such as things in the environment, the mother’s diet, the mother’s health conditions, or the mother’s medication use during pregnancy.
What causes congenital heart defects pregnancy?
What causes a congenital heart defect (CHD)? A congenital heart defect (CHD) is a heart problem that a baby has at birth. It is caused by abnormal formation of the heart during growth in the womb. In most cases, when a baby is born with a congenital heart defect, there is no known reason for it.
Which congenital heart disease is associated with cyanosis?
This results in the development of a bluish tint (cyanosis) to the skin, lips, and nail beds. Cyanotic heart defects include: Tetralogy of Fallot. Transposition of the great vessels.
What are some possible causes of cyanotic babies?
Some of the heart conditions that can cause a child to have cyanosis are:
- truncus arteriosus.
- total anomalous pulmonary venous return.
- transposition of the great arteries.
- tricuspid atresia.
- pulmonary atresia.
- atrioventricular canal defect.
- pulmonary hypertension.
- hypoplastic left heart syndrome.
Is a congenital heart defect hereditary?
Congenital heart disease appears to run in families (inherited). It’s associated with many genetic syndromes. For instance, children with Down syndrome often have congenital heart defects. Genetic testing can detect Down syndrome and some other genetic conditions while a baby is still in the mother’s womb.
When do heart defects occur in pregnancy?
This is the most common type of birth defect. A baby’s heart starts to develop at conception. But it is fully formed by 8 weeks into the pregnancy. Congenital heart defects happen in the first 8 weeks of the baby’s development.
Does ventricular septal defect cause cyanosis?
The higher the lung or pulmonary pressure, the greater the chance of blood flowing from the right ventricle through the VSD to the left ventricle, causing deoxygenated blood to be pumped out to the body by the left ventricle, causing cyanosis (blue skin).
Which congenital heart disorders can lead to cyanosis as a result of deoxygenated blood entering the systemic arterial circulation?
Congenital Heart Defects Examples of defects that can cause cyanosis include tricuspid valve atresia, transposition of the great arteries, tetralogy of Fallot, and pulmonary atresia.
What is cyanotic heart defect?
Cyanotic heart disease refers to a group of many different heart defects that are present at birth (congenital). They result in a low blood oxygen level. Cyanosis refers to a bluish color of the skin and mucous membranes.
What causes cyanotic heart disease?
What causes cyanotic heart disease? Causes include: genetic and chromosomal abnormalities, infections during pregnancy, poorly controlled diabetes in the mother, a number of medications and street drugs used during pregnancy etc.
What causes congenital heart defects in fetus?
What does ventricular septal defect cause?
Ventricular Septal Defects (VSD) A ventricular septal defect is a hole in the wall that separates the lower chambers of your heart. When this hole is large enough, the amount of blood leaking between the chambers can cause permanent damage to your heart and lungs and increase the risk of heart infections.