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Topic: Situs inversus


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  Situs Inversus Dextrocardia
Dextrocardia with Situs Inversus is characterised by the reversal of the normal position of the heart chambers and abdominal organs such as the liver and spleen.
Situs inversus totalis is associated with a 5-10% incidence of congenital heart disease.
Situs inversus with levocardia (right-sided stomach and left-sided heart) is associated with congenital heart disease in 95% of cases, but is very rare.
www.laughs.com.au /sid   (1241 words)

  
 Situs inversus - Wikipedia, the free encyclopedia
Situs inversus causes the positions of the heart and lungs to be mirrored.
Situs inversus should not be confused with a mislabelled chest X-ray.
Situs inversus is generally inherited in an autosomal recessive pattern.
en.wikipedia.org /wiki/Situs_inversus   (926 words)

  
 Situs Inversus Information on Healthline
Situs inversus is a condition in which the organs of the chest and abdomen are arranged in a perfect mirror image reversal of the normal positioning.
Rarely, situs inversus can run in families, but most often it is an isolated and accidental event occurring in an individual for the first time in the family.
To confirm the a suspected diagnosis of situs inversus, imaging studies such as MRI, CT, or ultrasound may be ordered, and a referral may be made to a cardiologist or internist for completeness.
www.healthline.com /galecontent/situs-inversus   (814 words)

  
 eMedicine - Situs Inversus : Article Excerpt by: Annamaria Wilhelm, MD   (Site not responding. Last check: 2007-10-17)
Situs solitus is the normal position, and situs inversus is the mirror image of situs solitus (see Image 1).
Situs inversus can be classified further into situs inversus with dextrocardia or situs inversus with levocardia.
Situs inversus with dextrocardia also is termed situs inversus totalis because the cardiac position, as well as the atrial chambers and abdominal viscera, is a mirror image of the normal anatomy.
www.emedicine.com /radio/byname/situs-inversus.htm   (640 words)

  
 eMedicine - Situs Inversus : Article by Annamaria Wilhelm, MD   (Site not responding. Last check: 2007-10-17)
Situs inversus with levocardia is rare; it occurs in 1 case per 22,000 and it is almost always associated with congenital heart disease.
In an upper gastrointestinal examination in situs inversus, the stomach is on the right, with the C loop of the duodenum curving to the left.
Situs ambiguous and situs inversus with levocardia have this discordance, and further imaging usually is needed.
www.emedicine.com /radio/topic639.htm   (3229 words)

  
 New Page 1
Kartagener's syndrome is characterized by situs inversus, chronic paranasal sinusitis and bronchiectasis.
Situs inversus totalis is a rare anatomic condition characterized by the mirror-imaged arrangement of asymmetric thoracic and abdominal organs.
The differentiation of situs inversus totalis and abnormal rotation of the abdominal viscera (situs indeterminus) is important surgically because fixation of the midgut loop may be indicated in patients with situs indeterminus.
www.pediheart.org /searches/topic/heterotaxy.htm   (6083 words)

  
 The Situs Inversus (iv) Mutation - The Jackson Laboratory
Most animals are born with normal asymmetry of visceral organs (situs solitus), however, reversed asymmetry (situs inversus) has been reported sporadically in a number of species, including mice (Hummel and Chapman, 1959).
Subsequent breeding studies demonstrated that this trait, situs inversus, was inherited as a single autosomal recessive gene (symbol iv) with incomplete penetrance (Hummel and Chapman, 1959).
The availability of inbred strains with situs inversus suggests that the cilia defect may be incidental to transposition of organs and not the primary functional defect, although orientation of the cilia has yet to be evaluated.
jaxmice.jax.org /library/notes/452b.html   (1163 words)

  
 Malpositions   (Site not responding. Last check: 2007-10-17)
One unique form of dextroversion is termed the Cantrell syndrome, in which five components are present: midline epigastric abdominal wall defect often associated with herniation or omphalocele, a defect of the lower sternum, deficiency of the anterior diaphragm, defect of the diaphragmatic portion of the parietal pericardium, and diverticulum of the left ventricle.
The type of situs resulting in levocardia resemble those of dextrocardia, tow being associated with situs solitus, one with situs inversus, and two with situs ambiguous.
Levoversion of situs inversus represents the opposite of dextroversion of situs solitus.
www.pediheart.org /practitioners/anatomy/malpostitions.htm   (432 words)

  
 LAPAROSCOPIC CHOLECYSTECTOMY IN SITUS VISCERUM INVERSUS TOTALIS
Situs viscerum inversus is a rare embryologic anomaly in which there is a mirror image transposition of normal anatomy of organs, with almost the same incidence of variant anatomy.
Situs viscerum inversus totalis is a good example of the need to identify and confirm biliary anatomy during the procedure prior to clamping or cutting any biliary structures.
Laparoscopic cholecystectomy in a patient with empyema of the gallbladder and situs inversus.
www.kfshrc.edu.sa /annals/183/97-228.html   (598 words)

  
 Kartagener Syndrome Information on Healthline
The defining characteristic of this syndrome is the situs inversus, which is a reversal of abdominal and thoracic organs.
In partial situs inversus, the thoracic organs may be reversed, while the abdominal organs are normally positioned, or vice versa.
One theory behind the association of situs inversus with the underlying cause of Kartagener syndrome is that the lack of ciliary movement in the developing embryo may result in incorrect organ rotation in approximately 50% of affected individuals.
www.healthline.com /galecontent/kartagener-syndrome   (909 words)

  
 BioMed Central | Full text | Laparoscopic cholecystectomy in situs inversus totalis: a case report
In 1600 the first known case of situs inversus in humans was reported by Fabricius [1].
It has been noted in 30% of previous reported cases of acute cholecystitis in patients with situs inversus that the pain was felt in the epigastrium alone and in 10% the pain was localised to the right upper quadrant [4].
Previous reports have confirmed that situs inversus is not a contraindication for laparoscopic cholecystectomy [1-3,5,6].
www.biomedcentral.com /1471-2482/5/5   (1129 words)

  
 Situs inversus totalis definition - Medical Dictionary definitions of popular medical terms
Situs inversus totalis: A condition in which there is complete right to left reversal (transposition) of the thoracic and abdominal organs.
In patients with situs inversus totalis, all of the chest and abdominal organs are reversed and appear in mirror image when examined or visualized by tests such as x-ray filming.
Situs inversus occurs in a rare abnormal condition that is present at birth (congenital) called Kartagener's syndrome that also features sinus and lung infections.
www.medterms.com /script/main/art.asp?articlekey=5499   (213 words)

  
 PLAIN RADIOGRAPHIC DIAGNOSIS OF CONGENITAL HEART DISEASE   (Site not responding. Last check: 2007-10-17)
The incidence of situs inversus is reported to be 1:2500 to 1:20,000.
Dextroversion, dextrorotation, and pivotal dextrocardia are synonymous with dextrocardia with situs solitus.
The incidence of congenital heart disease varies from 10% in situs inversus to 90% in situs solitus.
www.bcm.edu /radiology/cases/pediatric/text/6a-desc.htm   (338 words)

  
 Coronary stent deployment in situs inversus -- Robinson et al. 86 (5): 15 -- Heart   (Site not responding. Last check: 2007-10-17)
Situs inversus with dextrocardia occurs in approximately one in 10 000 patients.
Simultaneous association of situs inversus, coronary artery disease and hiatus hernia.
Coronary artery bypass surgery in a patient with situs inversus.
heart.bmjjournals.com /cgi/content/full/86/5/e15   (941 words)

  
 Abdominal Manifestations of Situs Anomalies in Adults -- Fulcher and Turner 22 (6): 1439 -- RadioGraphics
to situs solitus and a left-sided cardiac apex.
  Situs inversus in a 47-year-old man. (a) Conventional supine abdominal radiograph reveals that the descending colon (D), located in the right side of the abdomen, is cephalad to the ascending colon (A), located in the left side of the abdomen.
isomerism or bilateral left-sidedness, is a subcategory of situs
radiographics.rsnajnls.org /cgi/content/full/22/6/1439   (8412 words)

  
 MIR Teaching file case ca001   (Site not responding. Last check: 2007-10-17)
Situs solitus: Normal heart, with the left atrium, left, systemic ventricle, aorta, and stomach are on the same side.
Situs inversus: "Mirror image" of situs solitus with the left atrium and stomach are on the right.
Situs Ambiguous: the position of the left atrium and stomach is uncertain.
gamma.wustl.edu /ca001te151.html   (242 words)

  
 Medical Dictionary: Situs inversus viscerum - WrongDiagnosis.com
Situs inversus viscerum: A laterization defect marked by asymmetric position of visceral organs usually occurring as a component of a wide variety of abnormalities.
Situs inversus viscerum is listed as a "rare disease" by the Office of Rare Diseases (ORD) of the National Institutes of Health (NIH).
This means that Situs inversus viscerum, or a subtype of Situs inversus viscerum, affects less than 200,000 people in the US population.
www.wrongdiagnosis.com /medical/situs_inversus_viscerum.htm   (335 words)

  
 Situs Inversus
As you explained with situs inversus, the internal organs are on the opposite side from usual.
According to David Lewis, MD a pediatric cardiologist at Children's Hospital of Wisconsin and Associate Professor of Pediatrics at the Medical College of Wisconsin, the very good news if that your son should have a normal life span without risk of heart problems any more than anybody else.
Lewis still remembers the first child he examined with situs inversus and the puzzlement he felt while trying to hear the heart beat, but being met with silence.
healthlink.mcw.edu /article/901226430.html   (242 words)

  
 over my med body! » Situs Inversus
(Situs inversus occurs when all your organs are flipped to the opposite side.
I started to get excited, thinking it had to be situs inversus, so I felt down toward the *left* side of the diaphragm, and felt the liver.
Situs inversus is a 1/10,000 occurrence, and some believe it occurs due to a mutant cilia protein that causes the cilia to beat in the opposite direction.
www.grahamazon.com /2004/09/situs-inversus   (414 words)

  
 Abnormalities in the Determination of Lateral Symmetry
The normal orientation of the organs of the trunk is known as situs solitus, and is clearly defined in the thorax as consisting of a right heart loop.
A complete reversal of this orientation with a left heart loop is known as situs inversus.
Although the category of situs ambiguous refers to a myriad of related, yet distinct errors in orientation, there exist two similar conditions in which there is either a complete or partial lack of asymmetry.
endeavor.med.nyu.edu /~strone01/anatomy.html   (1142 words)

  
 Congenital Diaphragmatic Hernia and Situs Inversus Totalis -- Tesselaar et al. 113 (3): 256 -- Pediatrics
Situs inversus totalis is a rare condition in which orientation
Chest radiograph demonstrating pneumothorax and pneumoperitoneum, revealing the situs inversus of the abdominal viscera.
Total laryngo-tracheo-esophageal cleft with situs inversus totalis, aplasia of the right diaphragm and hypoplasia of the lung on the right side [in German].
pediatrics.aappublications.org /cgi/content/full/113/3/e256   (1239 words)

  
 PLAIN RADIOGRAPHIC DIAGNOSIS OF CONGENITAL HEART DISEASE   (Site not responding. Last check: 2007-10-17)
The presence of situs inversus in association with dextrocardia is significantly less strongly associated with the presence of congenital heart disease than in patients with dextrocardia and situs solitus.
Pulmonary disorders however are more commonly associated with situs inversus totalis than isolated dextrocardia and include Karthagener's syndrome.
This syndrome comprises dextrocardia, visceral situs inversus, chronic bronchiectasis, nasal polyposis, and sinusitis.
www.bcm.edu /radiology/cases/pediatric/text/6b-desc.htm   (97 words)

  
 UAB Radiology Detail Page
Discussion: Normal anatomical positioning is termed situs solitus.
As shown above, situs inversus is a mirror image of normal anatomy.
Situs ambiguous with bilateral "left-sidedness" is called Polysplenia syndrome.
www.rad.uab.edu:591 /tf/FMPro?-db=teachfile.fmp&-format=browse_record_detail.htm&-lay=webtf&-op=eq&Category=Vascular&ImagesPresent=1&-max=2147483647&-recid=32&-find=   (344 words)

  
 Ask an Expert: Situs inversus
In case this is spelled wrong it is a condition where the organs are reversed or in the opposit position.
Situs inversus is characterized by a mirror-image configuration of the asymmetric organs, including the GI tract.
If the child has a complete situs inversus, physical exam may be challenging but the child is usually otherwise fine.
www.netwellness.org /question.cfm/4846.htm   (245 words)

  
 bookofjoe: BehindTheMedspeak: Situs Inversus
Dextrocardia with situs inversus occurs in 1 person in 8,500.
I was born with situs inversus and dextracardia.
Dec 7, 2005 3:49:03 AM My son was diagnosed with dextrocardia and sinus inversus at 5 months when we went to A&E he had a chest infection and the Xray showed it up.He has had a couple of chest infections since nothing too bad.
www.bookofjoe.com /2004/12/behindthemedspe_25.html   (2398 words)

  
 IngentaConnect Human situs inversus of the thoracoabdominal structures   (Site not responding. Last check: 2007-10-17)
Situs inversus totalis is well known, but its comprehensive description has been rare, especially on the internal view of the heart.
For discussions based on recent results in developmental biology, the present study demonstrates a region- or part-specific manner of the inverted morphology found in a male donated cadaver and discusses the pathogenetic mechanisms of situs inversus in the human.
Therein, clearly inverted morphologies existed in the coronary vessels, the apex position (dextracardia), connections between the heart and great vessels, the internal view of the atrium, the aortic arch with the three major branches, lung and liver segments and abdominal gastrointestinal tract.
www.ingentaconnect.com /content/bsc/asi/2006/00000081/00000001/art00002   (369 words)

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