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         Congenital Heart Disease:     more books (111)
  1. Etiology and Morphogenesis of Congenital Heart Disease: Twenty Years of Progress in Genetics and Developmental Biology
  2. Etiology and morphogenesis of congenital heart disease
  3. Congenital Heart Disease: Morphologic Echocardiographic Correlations (Modern Paediatric Cardiology) by Elma J. Gussenhoven, 1983-04
  4. Echocardiographic diagnosis of congenital heart disease by Roberta G Williams, 1977
  5. Basic Imaging in Congenital Heart Disease by Leonard E. Swischuk, David W. Sapire, 1986-12
  6. Cardiac Development with Special Reference to Congenital Heart Disease (Proceedings of the 1968 International Symposium) by Oscar C., Editor Jaffee, 1970
  7. Coronary Arterial Variations in the Normal Heart and in Congenital Heart Disease by Zeev Vlodaver, etc., 1975-11
  8. The neonate with congenital heart disease (Major problems in clinical pediatrics) by Richard Desmond Rowe, 1981
  9. Atlas of Heart Disease: Congenital Heart Disease, Volume 12 (Atlas of Heart Diseases, V. 12) (Vol. 12) by Eugene Braunwald MD, Braunwald, 1996-12-01
  10. THE DIAGNOSIS OF CONGENITAL HEART DISEASE. by Graham A.H, Robert H. Anderson & Michael L. Rigby. Miller, 1985
  11. Color Atlas of Cardiac Surgery: Congenital Heart Disease (Wolfe Medical Atlases) by James L. Monro, 1984-08
  12. Two-Dimensional Echocardiography in Congenital Heart Disease by Norman H. Silverman, 1983-01
  13. Vectorcardiography in congenital heart disease;: A method for estimating severity by Robert Curtis Ellison, 1972
  14. Second Clinical Conference on Congenital Heart Disease

81. Congenital Heart Disease - Lucile Packard Children's Hospital
congenital heart disease There are many different congenital (present at birth)heart defects that require clinical care by a physician or other healthcare
http://www.lpch.org/DiseaseHealthInfo/HealthLibrary/cardiac/chdhub.html
Arrhythmia Service/Electrocardiography (ECG) Laboratory
Cardiac Catheterization / Angiography

Cardiology

Cardiothoracic Surgery
...
Packard-based Physician Named Director of Cardiac Surgery for Children's Hospital Oakland
Cardiovascular Diseases
Congenital Heart Disease
There are many different congenital (present at birth) heart defects that require clinical care by a physician or other healthcare professional. Listed in the directory below are some, for which we have provided a brief overview. If you cannot find the information in which you are interested, please visit the Cardiovascular Diseases Online Resources page in this Web site for an Internet/World Wide Web address that may contain additional information on that topic. Overview of Congenital Heart Disease Fetal Circulation Factors Contributing to Congenital Heart Disease
    DiGeorge Syndrome ... Return to Full List of Topics
    Lucile Packard Children's Hospital is located in Palo Alto, adjacent to Stanford University Hospital, approximately 20 miles north of San Jose, CA and 40 miles south of San Francisco.
    Lucile Packard Children's Hospital
    725 Welch Road
    Palo Alto, California 94304

82. Congenital Heart Disease
congenital heart disease. INCREASED PULMONARY BLOOD FLOW AcyanoticL R shunts. Cyanotic admixture ( T ) lesions. NORMAL / DECREASED
http://chorus.rad.mcw.edu/doc/01215.html
CHORUS Collaborative Hypertext of Radiology Cardiovascular system
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congenital heart disease

83. Mott Health Topics: Caring For The Infant And Child With Congenital Heart Diseas
Caring for the Infant and Child with congenital heart disease. Whatis congenital heart disease? congenital heart disease is a term
http://www.med.umich.edu/1libr/chheart/care01.htm
Caring for the Infant and Child with Congenital Heart Disease
Find Your Way
Child and Adolescent

Health Topics A-Z
Your Child Development ...
What if I have questions?
What is Congenital Heart Disease? Congenital Heart Disease is a term used to describe heart defects that develop before birth. These defects result from a failure of the heart or the blood vessels near the heart to develop normally. Approximately one in 100 infants is born with a heart defect. In some cases, heredity, alcohol consumption or other drug intake during pregnancy, or an infection during pregnancy increase the incidence of heart defects. However, in most cases, the cause of the heart defect is not known. How is it diagnosed?
There are many different types of heart defects and no two are exactly alike. Some defects are diagnosed before birth while others are not detected until birth or weeks or years after birth. If your primary physician suspects that your child has a congenital heart defect, he or she will most likely refer your child to a pediatric cardiologist for a specialized evaluation. In addition to providing a thorough physical examination, your child's cardiologist will use diagnostic tests such as electrocardiogram, echocardiogram, chest x-ray or cardiac catheterization to determine the type and severity of your child's heart defect.

84. Cardiology Catalog- Page 22 - CONGENITAL HEART DISEASE IN ADULTS
congenital heart disease IN ADULTS. There are at least a half millionadults in this country with congenital heart disease. Most
http://app.medicine.wisc.edu/cardiobook/displaypage.cfm?page=22

85. Blood Pressure Control After Cerebrovascular Accident
congenital heart disease, Causes See congenital heart disease Causes. Risk FactorsMaternal Diabetes Mellitus; Family history of congenital heart disease
http://www.fpnotebook.com/CV148.htm
Home About Links Index ... Editor's Choice Paid Advertisement (click above). Please see the privacy statement Cardiovascular Medicine Neurology Hypertension Blood Pressure Control after Cerebrovascular Accident Blood Pressure Control after Cerebrovascular Accident Stroke Related Blood Pressure Management CVA Blood Pressure Control Book Home Page Cardiovascular Medicine Dental Dermatology Emergency Medicine Endocrinology Gastroenterology General Medicine Geriatric Medicine Gynecology Hematology and Oncology HIV Infectious Disease Jokes Laboratory Neonatology Nephrology Neurology Obstetrics Ophthalmology Orthopedics Otolaryngology Pediatrics Pharmacology Prevention Psychiatry Pulmonology Radiology Rheumatology Sports Medicine Surgery Urology Chapter Cardiovascular Medicine Index Arrhythmia Coronary Artery Disease Congestive Heart Failure EKG Examination Ophthalmology Hypertension Infectious Disease Laboratory General Hyperlipidemia Pulmonology Myocardium Neurology Neonatology Obstetrics Pediatrics Pericardium Pharmacology Prevention Procedure Radiology Sports Medicine Surgery Symptom Evaluation Valvular Disease Vessel Page Neurology Index Htn CVA
  • General Avoid lowering Blood Pressure too low in acute CVA Lower Blood Pressure correlates with lower perfusion Goal Blood Pressure : 120% of baseline Blood Pressure Emergent Hypertensive Crisis Criteria Diastolic Blood Pressure exceeds 140 mmHg Confirmed on 2 readings, 5 minutes apart
  • 86. Hypertension In Infants
    congenital heart disease Causes, Book, Home Page. See also CongenitalHeart Disease. Most Common Etiologies Cyanotic
    http://www.fpnotebook.com/CV149.htm
    Home About Links Index ... Editor's Choice Paid Advertisement (click above). Please see the privacy statement Cardiovascular Medicine Neonatology Hypertension Hypertension in Infants Hypertension in Infants Hypertension in Newborns Neonatal Hypertension Book Home Page Cardiovascular Medicine Dental Dermatology Emergency Medicine Endocrinology Gastroenterology General Medicine Geriatric Medicine Gynecology Hematology and Oncology HIV Infectious Disease Jokes Laboratory Neonatology Nephrology Neurology Obstetrics Ophthalmology Orthopedics Otolaryngology Pediatrics Pharmacology Prevention Psychiatry Pulmonology Radiology Rheumatology Sports Medicine Surgery Urology Chapter Cardiovascular Medicine Index Arrhythmia Coronary Artery Disease Congestive Heart Failure EKG Examination Ophthalmology Hypertension Infectious Disease Laboratory General Hyperlipidemia Pulmonology Myocardium Neurology Neonatology Obstetrics Pediatrics Pericardium Pharmacology Prevention Procedure Radiology Sports Medicine Surgery Symptom Evaluation Valvular Disease Vessel Page Neonatology Index Htn
  • Normal Blood Pressure s in young infants and newborns See Pediatric Vital Signs Causes Blood Pressure higher in upper extremity Aortic Coarctation Interrupted aortic arch Blood Pressure higher in lower extremity Renal parenchymal disease Endocrine abnormality Neonatal Seizure s with transient Hypertension Hypervolemia Renovascular ( Umbilical Artery Catheter complication) Aortic mural thrombi Renal artery thrombosis Renal vein thrombosis Evaluation Aortic cause suspected Evaluate for Aortic Coarctation Renal or endocrine cause suspected
  • 87. Congenital Heart Disease
    congenital heart disease Vol.1 No.6. by Joshua A. Copel, MD. Congenitalheart disease is one of the most common congenital anomalies.
    http://www.hygeia.org/poems6.htm
    Congenital Heart Disease
    Vol.1 No.6 by Joshua A. Copel, M.D. Director of Maternal and Fetal Medicine
    Department of Obstetrics and Gynecology

    The Yale University School of Medicine Congenital heart disease is one of the most common congenital anomalies. Overall approximately 3% of newborns are found to have some major congenital anomaly, and about one in 6 of these have congenital heart disease. Looked at another way, about 30,000 infants die annually in the US between 5 months pregnancy and one year after birth. One in five die because of congenital anomalies, and one third of these are cardiovascular abnormalities. Newborns with congenital heart disease usually look pretty similar to unaffected newborns for the first few hours after birth. Before birth the heart is specially adapted for intrauterine life. The fetus does not breathe inside the womb, rather the placenta does the breathing work for the fetus. Normally there are connections between the right and left sided receiving chambers of the heart (the atria), and between the two main arteries that leave the heart, the aorta to the body and the pulmonary artery to the lungs. Newborns with many types of severe heart problems do well until these normal connections begin their normal process of closing. At that point, fetuses with absence of one of the normal pumping chambers, the ventricles, for example, will begin to show the abnormal coloration or labored breathing that are often the first signs of cardiac abnormalities. These signs are similar to those seen in newborns with infections and some other problems, so it may take a couple of hours for the recognition that a heart problem is present. Especially in these days of early hospital discharges for apparently healthy moms and babies, problems may not arise until the child has been brought home. For new parents of a first child, even recognizing that there is a problem can take a while.

    88. Children's Health At Doernbecher - Child Health A-Z
    congenital heart disease, RELATED SERVICES. ·, Cardiology. ·, CardiothoracicSurgery. There are many different congenital (present at
    http://www.ohsuhealth.com/dch/health/cardiac/cong_heart_disease.asp

    Cardiovascular Disorders Index

    The Heart

    Diagnosing and Evaluating Heart Disease in Children

    Heart Murmurs
    ...
    Online Resources

    You have selected the following Health topic:
    - Adolescent Medicine - Burns - Cardiovascular Disorders - Care of the Terminally Ill Child - Children Having Surgery - Common Childhood Injuries and Poisoning - Craniofacial Anomalies - Dermatology - Diabetes - Eye Care - Genetics - Growth and Development - High-Risk Newborn - High-Risk Pregnancy - Immunizations - Infectious Diseases - Mental Health - Neurological Disorders - Normal Newborn - Oncology - Orthopaedics - The Pediatrician - Pregnancy and Childbirth - Respiratory Disorders - Transplantations - Well-Care Visits
    Congenital Heart Disease RELATED SERVICES Cardiology Cardiothoracic Surgery
    There are many different congenital (present at birth) heart defects that require clinical care by a physician or other healthcare professional. Listed in the directory below are some, for which we have provided a brief overview.
    If you cannot find the information in which you are interested, please visit the

    89. Congenital Heart Disease Terminology
    A Glossary of congenital heart disease Terminology A Dictionary for Patientsand their Families Your browser is not Java 1.1 compliant!
    http://www.bcm.tmc.edu/pedi/cardio/chd_terms.html
    A Glossary of
    Congenital Heart Disease
    Terminology
    A Dictionary for Patients and their Families
    Your browser is not Java 1.1 compliant!
    Credits
    PRODUCED BY THE CARDIOVASCULAR NURSES
    THE LILLIE F. ABERCROMBIE SECTION OF PEDIATRIC CARDIOLOGY
    TEXAS CHILDREN'S HOSPITAL, BAYLOR COLLEGE OF MEDICINE, AND TEXAS HEART INSTITUTE
    Section of Pediatric cardiology, Texas Children’s Hospital
    Editors and Consultants: Mari-Ann Ferran-Alexander, R.N.(Editor in Chief), Susan A. Rockwell, R.N.(Executive Editor), Elizabeth J. Collins, R.N., Kathy L. Drescher, R.N., Marion Kennedy, R.N., Patricia Knighton, R.N., Mary B. Mauer, R.N., Julia K. Price, R.N., Margaret Amoako, R.N., Susan Harris, R.N., Dianne Marlow, R.N., Freddie Mickel, R.N. Advisory Panel: William A. Alexander, M.D., Nancy A. Ayres, M.D., John T. Bricker, M.D., Timothy F. Feltes, M.D., Charles D. Fraser, M.D., Richard A. Friedman, M.D. Through the years we have collectively worked with thousands of patients and their families. Nurses routinely have visited with families to assess the level of understanding they have of their family member's disease process. As a result, we have compiled a listing of commonly used words and terms, along with the definitions we use in our discussions. As much information as we have given the patients and their families through the years, it cannot compare with what they have taught us. Writing this glossary was a way to share what we have

    90. PLAIN RADIOGRAPHIC DIAGNOSIS OF CONGENITAL HEART DISEASE
    PLAIN RADIOGRAPHIC DIAGNOSIS OF congenital heart disease. Colin McMahon,MB.BCh. Edward Singleton, MD. Texas Children's Hospital, Houston
    http://www.bcm.tmc.edu/radiology/ICC/pediatric/
    PLAIN RADIOGRAPHIC DIAGNOSIS OF CONGENITAL HEART DISEASE Colin McMahon, M.B.BCh.
    Edward Singleton, M.D. Texas Children's Hospital, Houston, Texas
    Texas Heart Institute
    Edward B. Singleton Diagnostic Imaging Service
    Hypertext fomatting: Joseph Magee, Ph.D. 1. The normal chest radiograph Image and description. 2. Conditions with increased pulmonary vascularity.
  • Atrial septal defect, secundum.
  • Posteroanterior (PA) chest radiograph
    Condition Description: Atrial Septal Defect (ASD)
    Ventricular septal defect.
  • Moderate left to right shunt
  • PA chest radiograph Right anterior oblique view Large left to right shunt.
  • PA chest radiograph Large left to right shunt.
  • PA chest radiograph Right anterior oblique film and barium swallow
  • Condition Description: Ventricular Septal Defect (VSD)
    Atrioventricular septal defect.
  • Atrioventricular septal defect (Down syndrome).
  • PA radiograph. Atrioventricular septal defect (Down syndrome).
  • PA radiograph
  • Condition Description: Atrioventricular septal defect (AVSD)
    Patent ductus arteriosus.
  • Patent ductus arteriosus.
  • 91. Congenital Heart Disease (Adults)
    congenital heart disease (Adults). congenital heart disease is theterm used to describe heart defects present at birth. Many times
    http://www.med.nyu.edu/cvinstitute/patients/congenital.html
    DEPARTMENTS DIRECTORY ADVANCED SEARCH SCHOOL HOME ... How to Make an Appointment Congenital Heart Disease (Adults) Congenital heart disease is the term used to describe heart defects present at birth. Many times, surgery is indicated for children and infants, even newborns. Sometimes a defect is not discovered until adolescence or adulthood, when corrective surgery may be recommended. Congenital heart disorders are usually diagnosed using chest x-ray, electrocardiography, echocardiography, and (less commonly) cardiac catheterization. Electrocardiograms and echocardiograms are performed in our Noninvasive Cardiology Laboratory, which has played a leading role in the imaging of congenital heart disorders. Some patients with suspected congenital heart disease have a test called transesophageal echocardiography, a test which we pioneered. This examination produces images of the heart of a quality higher than those obtained using conventional echocardiography. The most common congenital heart defects in adults are ventricular septal defects, atrial septal defects, coarctation of the aorta (a narrowing of the aorta that can affect blood pressure and strain the heart), and valve disease. Septal defects cause oxygenated and unoxygenated blood to mix in the heart. NYU cardiac surgeons are increasingly using minimally invasive techniques to repair such defects, enabling patients to return to normal activities sooner than they would have with conventional open heart surgery.

    92. Medicine Online Medical Reference, Cosmetic Plastic Surgery, Bid For Rx, Medicat
    Diseases and Conditions Cardiovascular - congenital heart disease.Cardiac Malformations This articles has basic information on
    http://www.medicineonline.com/Default.asp?SubSubCatID=87&Main=1

    93. Pregnancy And Heart Disease
    under the care of a obstetrician and cardiologist, those with certain congenitalheart diseases cyanotic congenital heart disease, pulmonary hypertension
    http://www.cardio.com/articles/preg-hrt.htm
    HOME CIS Information Doctor's Biographies View On-line Articles ... Positions Available Pregnancy and Heart Disease
    By James B. Lam, M.D.
    Cardiologist/Cardiovascular Specialist
    Cardiovascular Institute of the South/Morgan City
    Fifty years ago, doctors regularly told women with heart disease to avoid pregnancy. That changed as more was learned about the changes a pregnant woman's body undergoes and now it is not unusual for women with heart disease to have a normal (albeit carefully monitored) pregnancy. Pregnancy puts tremendous strains on the heart and circulatory system. By the time the baby is due, blood volume has increased by up to 50 percent, meaning the heart must beat faster and harder to move all that blood. It is essential that women with heart disease discuss their illness with their doctors before becoming pregnant. While most women with heart disease can carry a baby to term under the care of a obstetrician and cardiologist, those with certain congenital heart diseases - cyanotic congenital heart disease, pulmonary hypertension, or severe aortic stenosis - are at high risk of losing their babies, their lives, or both. It is also important to discuss with the doctor the possibility of passing on a congenital heart defect to the child. Between four and five percent of children born to women with significant congenital heart disease inherit the condition. With some disorders the rate can climb to 50 percent.

    94. Treatment Of Adult Congenital Heart Disease, Mayo Clinic In Rochester, Minn.
    Treatment of Adult congenital heart disease at Mayo Clinic in Rochester.Congenital Adult congenital heart disease Clinic at Mayo Clinic. Adults
    http://www.mayoclinic.org/congenitalheart-rst/
    search: Mayo Clinic Locations: Arizona Florida Minnesota Mayo Clinic ... Medical Services Congenital Heart Disease Adult Congenital Heart Disease Treatment Diagnosis Self-Care Options Appointments ... Medical Services
    Treatment of Adult Congenital Heart Disease at
    Mayo Clinic in Rochester
    Congenital heart disease is not a single disease but a general name for any type of congenital malformation of the heart, heart valves or major (great) blood vessels. Defects can range from simple to complex and can occur alone or in groups, depending on how the heart has developed. Types of adult congenital heart disease include:
    Adult Congenital Heart Disease Clinic at Mayo Clinic
    Adults with congenital heart disease require expert care for continued survival and quality of life. Also, these patients need advice about many issues such as exercise, employability, noncardiac surgery, insurance difficulties, endocarditis prophylaxis, education regarding their anatomy, prognosis, and potential future problems. Facilities and personnel need to be available to provide this complex, multidisciplinary care. In order to best care for these complex patients, the cardiologists at Mayo Clinic established the Adult Congenital Heart Disease Clinic a decade ago.

    95. The Doctor's Lounge: Congenital Heart Disease Review!
    congenital heart disease, Cardiology. Medical disease review for USMLE, MRCP.A quick summary before the exams. Cardiology. congenital heart disease.
    http://www.thedoctorslounge.net/clinlounge/diseases/cardiol/congenital.htm
    Home Member Search Discussion ... Contact With over 1 million users and awarded Yahoo site of the day! Start page Favorites TRANSLATE... Italian English Portugese French Spanish German Get FREE Medical Consultation! Meet the Lounge Doctors! Join the Mailing List
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    Back to cardiology disease index
    Cardiology
    Congenital heart disease
    Usually these patients are diagnosed by pediatricians and do not present as adults without previous diagnosis and management unless they have small benign lesions as atrial septal defect (ASD). DD of congenital heart diseases:
    A. Cyanotic heart disease:
    1. with right ventricular hypertrophy: Triology of Fallot, Eisenmenger. 2. with left ventricular hypertrophy: Tricuspid atresia. 4. with no ventricular hypertrophy: Tetralogy of Fallot.
    B. Non-cyanotic heart disease:
    1. with right ventricular hypertrophy: ASD, pulmonary stenosis.

    96. Congenital Heart Disease
    Health System Heart Vascular Center congenital heart disease. CongenitalHeart Disease. The UVa Heart Center and Virginia Children's
    http://www.healthsystem.virginia.edu/internet/heart/guide/congenital-diseases.cf

    97. GeneDis Congenital Heart Disease (ASD) Mutation Web Site
    GeneDis Human Genetic Disease Database. congenital heart disease.Database GeneDis Website for congenital heart disease. Congenital
    http://life2.tau.ac.il/GeneDis/Tables/ASD/asd.html
    GeneDis
    Human Gene tic Dis ease Database
    Congenital Heart Disease
    Database coordinator: Dr. Rachel Kreisberg-Zakarin
    Bioinformatics Unit
    , G.S. Wise Faculty of Life Sciences, Tel-Aviv University, Israel.
    GeneDis Website for Congenital Heart Disease Congenital Heart Disease is a human genetic disease caused due to mutations in the CSX gene. The GeneDis web site for Congenital Heart Disease includes the wild type primary sequences of the CSX gene and protein. Known mutations are incorporated in the gene and in the protein sequences using hyperlinks. Users can compare CSX DNA or protein sequences to the wild type hyperlinked sequences present in GeneDis. The pairwise alignment output retains the hyperlinks, which enable the user to browse through the Congenital Heart Disease mutation table. The mutation table shows the location of the mutation on the cDNA, genomic DNA and protein sequences, the number of exon or intron, the severity of the disease associated with the mutation and a reference in which the mutation was first described. Go to "Search the Congenital Heart Disease Database with your primary DNA or protein sequence" Go to "GeneDis Homepage"
    Disease description Cardiac septation is a critical morphogenetic process in which the primordial single atrium and ventricle are partitioned into four chambers. Mistakes in this process occur commonly in humans; 1 in 1500 live births have an atrial septal defect (ASD) (

    98. Congenital Heart Disease/Thyroid Disease Connection
    The congenital heart disease/Thyroid Disease Connection by Mary Shomon Thelinkage between thyroid disease and heart disease is established.
    http://thyroid.about.com/library/weekly/aa021400a.htm
    zfp=-1 About Thyroid Disease Search in this topic on About on the Web in Products Web Hosting
    Thyroid Disease
    with Mary Shomon
    Your Guide to one of hundreds of sites Home Articles Forums ... Help zmhp('style="color:#fff"') Subjects ESSENTIALS Thyroid Basics/Thyroid 101 Weight Loss Information Center Hypothyroidism Information Center ... All articles on this topic Stay up-to-date!
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    The Congenital Heart Disease/Thyroid Disease Connection

    by Mary Shomon

    The linkage between thyroid disease and heart disease is established. Undiagnosed, untreated or undertreated hypothyroidism a condition of insufficient thyroid hormone can increase cholesterol levels and increases the risk of heart disease in adults. Hyperthyroidism a condition of an excess of thyroid hormone can also increase the risk of heart attacks, due to increased blood pressure, rapid heartbeat, and in some cases, palpitations and atrial fibrillation.
    When it comes to infants and children, there are also some important thyroid disease/heart disease links to be aware of:
    • Iodine Exposure Exposure to iodine, such as might occur during cardiac catheterisation or surgery, may induce a transient form of hypothyroidism in infants.

    99. Cordarone
    arrhythmias. Includes information on congenital heart disease. congenital heartdisease. arrhythmias. Includes information on congenital heart disease.
    http://www.cordaroneinfo.com/congenital-heart-disease.htm

    100. Cardiovascular Disorders - Factors Contributing To Congenital Heart Disease
    Factors Contributing to congenital heart disease. What causes congenitalheart disease? A congenital heart defect (CHD) is a heart
    http://app1.unmc.edu/nhs/healthinfo/pediatrics/html/cardiac/fcchd.htm
    Factors Contributing to Congenital Heart Disease What causes congenital heart disease?
    A congenital heart defect (CHD) is a heart problem which is present at birth, caused by improper development of the heart during fetal development. In the majority of the instances when a baby is born with congenital heart disease, there is no known reason for the heart to have formed improperly. Scientists know that some types of congenital heart defects can be related to an abnormality of an infant's chromosomes (5 to 6 percent), single gene defects (3 to 5 percent), or environmental factors (2 percent). In 85 to 90 percent of cases, there is no identifiable cause for the heart defect, and they are generally considered to be caused by multifactorial inheritance. Multifactorial inheritance means that "many factors" (multifactorial) are involved in causing a birth defect. The factors are usually both genetic and environmental, where a combination of genes from both parents, in addition to unknown environmental factors, produce the trait or condition. Maternal factors and CHD:
    Most mothers of babies born with congenital heart disease will look critically at their own behaviors during pregnancy to try to find a cause for their child's illness. It is important to remember that most cases of congenital heart disease have no known cause. However, some types of congenital heart defects are known to occur more often when the mother comes in contact with certain substances during the first few weeks of pregnancy, while the baby's heart is developing. Some maternal illnesses and medications taken for these illnesses have been shown to affect the heart's development. Other illnesses or medications seem to have no impact on the baby's heart.

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