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- $Unique_ID{BRK03661}
- $Pretitle{}
- $Title{Dextrocardia with Situs Inversus}
- $Subject{Dextrocardia with Situs Inversus Mirror-Image Dextrocardia Heart,
- Dextroversion Heart, Dextroposition Isolated Dextrocardia Kartagener Syndrome
- (Kartagener Triad; Sinusitis-Bronchiectasis-Situs Inversus Syndrome;
- Dextrocardia-Bronchiectasis-Sinusitis Syndrome)}
- $Volume{}
- $Log{}
-
- Copyright (C) 1987, 1990 National Organization for Rare Disorders, Inc.
-
- 466:
- Dextrocardia with Situs Inversus
-
- ** IMPORTANT **
- It is possible the main title of the article (Dextrocardia with Situs
- Inversus) is not the name you expected. Please check the SYNONYMS listing on
- the next page to find alternate names, disorder subdivisions, and related
- disorders covered by this article.
-
- Synonyms
-
- Mirror-Image Dextrocardia
-
- Information on the following disorders can be found in the Related
- Disorders section of this report:
-
- Heart, Dextroversion
- Heart, Dextroposition
- Isolated Dextrocardia
- Kartagener Syndrome (Kartagener Triad; Sinusitis-Bronchiectasis-Situs
- Inversus Syndrome; Dextrocardia-Bronchiectasis-Sinusitis Syndrome)
-
- General Discussion
-
- ** REMINDER **
- The information contained in the Rare Disease Database is provided for
- educational purposes only. It should not be used for diagnostic or treatment
- purposes. If you wish to obtain more information about this disorder, please
- contact your personal physician and/or the agencies listed in the "Resources"
- section of this report.
-
- Dextrocardia with Situs Inversus is a heart condition characterized by
- abnormal positioning of the heart. In this disorder, the tip of the heart
- (apex) is positioned on the right side of the chest. Additionally, the
- position of the heart chambers as well as the visceral organs such as the
- liver and spleen is reversed (situs inversus). However, most patients can
- live a normal life without associated symptoms or disability.
-
- Symptoms
-
- Dextrocardia with Situs Inversus is characterized by the reversal of the
- normal position of the heart chambers and abdominal organs such as the liver
- and spleen. The electrocardiogram shows an inversion of the electrical waves
- from the heart. The apex of the heart is positioned on the right side of the
- chest whereas it is normally located on the left.
-
- Causes
-
- Dextrocardia with Situs Inversus is a genetic disorder present at birth. It
- is transmitted by autosomal recessive genes. The primitive loop in the
- embryo moves into the reverse direction of its normal position during fetal
- development, causing displacement of organs. (Human traits including the
- classic genetic diseases, are the product of the interaction of two genes for
- that condition, one received from the father and one from the mother. In
- recessive disorders, the condition does not appear unless a person inherits
- the same defective gene from each parent. If one receives one normal gene
- and one gene for the disease, the person will be a carrier for the disease,
- but usually will show no symptoms. The risk of transmitting the disease to
- the children of a couple, both of whom are carriers for a recessive disorder,
- is twenty-five percent. Fifty percent of their children will be carriers,
- but healthy as described above. Twenty-five percent of their children will
- receive both normal genes, one from each parent and will be genetically
- normal.)
-
- Affected Population
-
- Dextrocardia with Situs Inversus is present at birth. The condition affects
- males and females in equal numbers.
-
- Related Disorders
-
- Dextroversion of the heart means that the location of the heart is abnormally
- positioned in the right half of the chest. The left ventricle remains on the
- left, but lies in front of the right ventricle. The heart is rotated to the
- right. The waves representing the heart beat on the electrocardiogram will
- indicate an abnormality.
-
- Dextroposition of the heart is a displacement of the heart to the right.
- It is usually caused by acquired disease of the lungs, the membrane around
- the lungs (pleura), or diaphragm. The electrocardiogram is usually normal.
-
- Kartagener syndrome is a combination of Dextrocardia with chronic
- dilatation of the bronchi, difficulty breathing, recurrent respiratory
- infection (bronchiectasis) and infection of the sinuses (sinusitis). Clubbed
- fingers and bluish discoloration of the skin (cyanosis) may also be present.
-
- Therapies: Standard
-
- Treatment of Dextrocardia with Situs Inversus is symptomatic and supportive
- when needed. In most cases patients can live a normal life without any
- symptoms or discomfort. If the condition is associated with other more
- serious heart malformations, the prognosis and treatment will vary. Genetic
- counseling may be helpful for affected families.
-
- Therapies: Investigational
-
- This disease entry is based upon medical information available through March
- 1990. Since NORD's resources are limited, it is not possible to keep every
- entry in the Rare Disease Database completely current and accurate. Please
- check with the agencies listed in the Resources section for the most current
- information about this disorder.
-
- Resources
-
- For more information on Dextrocardia with Situs Inversus, please contact:
-
- National Organization for Rare Disorders (NORD)
- P.O. Box 8923
- New Fairfield, CT 06812-1783
- (203) 746-6518
-
- American Heart Association
- 7320 Greenville Ave.
- Dallas, TX 75231
- (214) 750-5300
-
- NIH/National Heart, Lung and Blood Institute (NHLBI)
- 9000 Rockville Pike
- Bethesda, MD 20892
- (301) 496-4236
-
- For information on genetics and genetic counseling referrals, please
- contact:
-
- March of Dimes Birth Defects Foundation
- 1275 Mamaroneck Avenue
- White Plains, NY 10605
- (914) 428-7100
-
- Alliance of Genetic Support Groups
- 35 Wisconsin Circle, Suite 440
- Chevy Chase, MD 20815
- (800) 336-GENE
- (301) 652-5553
-
- References
-
- CONGENITALLY CORRECTED TRANSPOSITION IN THE ADULT: DETECTION BY RADIONUCLIDE
- ANGIOCARDIOGRAPHY: G.L. Guit, et al.; Radiology (November 1985: issue
- 157(2)). Pp. 521-527.
-
- A POSSIBLE INCREASE IN THE INCIDENCE OF CONGENITAL HEART DEFECTS AMONG
- THE OFFSPRING OF AFFECTED PARENTS: V. Rose, et al.; Journal Am Coll Cardiol
- (August 1985: issue 6(2)). Pp. 376-382.
-
- INTERNAL MEDICINE, 2nd ed.: Jay H. Stein, et al., eds; Little, Brown,
- 1987. P. 525.
-
-