congenital heart defect

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existing at, and usually before, birth; referring to conditions that are present at birth, regardless of their causation. Cf. hereditary.
congenital heart defect a structural defect of the heart or great vessels or both, present at birth. Any number of defects may occur, singly or in combination. They result from improper development of the heart and blood vessels during the prenatal period. Congenital heart defects occur in about 8 to 10 of every 1000 live-born children in the United States. The most common types are tetralogy of fallot, patent ductus arteriosus, ventricular septal defect, atrial septal defect, transposition of great vessels, and coarctation of the aorta.

In many cases, depending on the severity of the defect and the physical condition of the patient, these congenital conditions can be treated by surgery. However, some are so minor that they do not significantly affect the action of the heart and do not require surgery. The cause of most of these conditions is unknown. Gene abnormalities account for about 5 per cent, and in a small number of other cases they may be seen in a child whose pregnant mother had rubella (German measles) during the first 2 or 3 months of pregnancy.


an imperfection, failure, or absence.
congenital heart defect see congenital heart defect.
aortic septal defect see aortic septal defect.
atrial septal defect see atrial septal defect.
filling defect an interruption in the contour of the inner surface of stomach or intestine revealed by radiography, indicating excess tissue or substance on or in the wall of the organ.
neural tube defect see neural tube defect.
septal defect a defect in the cardiac septum resulting in an abnormal communication between opposite chambers of the heart. Common types are aortic septal defect, atrial septal defect, and ventricular septal defect. See also congenital heart defect.

congenital heart defect

A structural abnormality of the heart and great blood vessels that occurs during intrauterine development. Abnormalities are commonly classified by the presence or absence of cyanosis. Acyanotic abnormalities include atrial and ventricular septal defects, coarctation of the aorta, and patent ductus arteriosus. Cyanotic defects include tetralogy of Fallot, transposition of the great vessels, and hypoplastic left-sided heart syndrome.
See also: defect
References in periodicals archive ?
Previous studies showed that people born with heart defects have a higher risk of neurodevelopmental problems in childhood, such as epilepsy and autism, but this is, to our knowledge, the first study to examine the potential for dementia later in adult life,' said lead author Carina N.
After excluding women who had diabetes before pregnancy or who developed it during pregnancy, the results showed that the risk of giving birth to a child with a congenital heart defect was elevated by 8 percent for every increase of 10 milligrams per deciliter in blood glucose levels in the early stages of pregnancy.
Conclusion: The measurement of pre-and post-ductal oxygen saturation by pulse oximetry was an effective screening tool for the detection of critical congenital heart defects in newborns.
Usually this type of heart defect is detected in infancy or childhood, but this patient had a delayed presentation which is seen in very few cases," said the doctor adding that normally such cases do not survive beyond infancy since the heart defect puts huge pressure on the lungs.
In humans, high temperature from fever in the first trimester is associated with congenital heart defects in offspring (Dreier et al.
Although few hospital based studies have been conducted at the regional level to show the prevalence of CHD, unfortunately data of the incidence or prevalence at national level that can show the burden of congenital heart defect in our country, is not available.
When our cardiologist delivered the terrible news our second baby had a complex heart defect too, he was very shocked.
Prevalence of congenital heart defects in metropolitan Atlanta, 1998-2005.
While some studies have shown a protective effect of folic acid in congenital heart defects at low levels, such as the 0.
A BRAVE tot will be home for Christmas after major surgery to help fix four heart defects was cancelled.
Gracia Lorraine Hunt was born on August 2, 2012 with a severe Congenital Heart Defect called Hypoplastic Left Heart Syndrome.
It is devastating indeed for parents to discober that their child is born with a heart defect.