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 ?
The incidence of congenital heart defects (CHD) was found to be 5.
Objective: To determine the current frequency and pattern of distribution of congenital heart defects (CHD) at National Institute of Cardiovascular Diseases (NICVD), with the age at which initial diagnosis of CHD was made and the age at which the participant first visited the study center.
Maternal occupational pesticide exposure and risk of congenital heart defects in the National Birth Defects Prevention Study.
Most recently, some of the same researchers that published the early reports out of Hungary on protection against congenital heart defects showed evidence that a variety of congenital heart defects could be reduced with folic acid supplementation of between 3 mg and 6 mg daily (Eur J Obstet Gynecol Reprod Biol.
If you or someone you know has a child with a congenital heart defect, talk to the child's cardiologist about resources in the community to monitor and support his or her development, learning and behavior.
Secretary of Health and Human Services advised that the Recommended Uniform Screening Panel (RUSP) for newborns include screening for critical congenital heart defects, which is generally accomplished by pulse oximetry.
The trial challenged Ovation's position in the market for treatment of a congenital heart defect in premature infants with the only two commercial drugs available -- Indocin (indomethacin for injection) and Neoprofen (ibuprofen lysine).
The human congenital malformations (CM) have been attracting the attention of physicians from the ancient times, and in spite of the centuries-old history of mankind many aspects of etiology and pathogenesis of the congenital heart defects remain to be studied insufficiently at present.
Eighty-five percent of infants with any kind of congenital heart defect now survive long-term, but there is little information on adult patients, and most studies have been limited to a single center, individual states, or national registry data, Dr.
The incidence of any congenital heart defect was 28.
Congenital Heart Defect Awareness Week Congenital Heart Information Network 600 North 3rd Street, First Floor Philadelphia, PA 19123 (215) 627-4034 (215) 627-4306 Fax mb@tchin.
An autopsy showed the boy had a congenital heart defect, the medical examiner said.

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