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transposition of great vessels |
Also found in: Dictionary/thesaurus, Acronyms, Wikipedia, Hutchinson | 0.14 sec. |
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transposition /trans·po·si·tion/ (trans″po-zish´un) 1. displacement of a viscus to the opposite side. 2. the operation of carrying a tissue flap from one situation to another without severing its connection entirely until it is united at its new location. 3. the exchange of position of two atoms within a molecule. transposition of great vessels a congenital cardiovascular malformation in which the position of the chief blood vessels of the heart is reversed. Life then depends on a crossflow of blood between the right and left sides of the heart, as through a ventricular septal defect.
transposition displacement to the opposite side; in genetics, the nonreciprocal insertion of material deleted from one chromosome into another, nonhomologous chromosome. transposition of arterial trunks see transposition of great vessels (below). transposition of great vessels a congenital heart defect, in which the position of the chief blood vessels of the heart is reversed. Called also transposition of arterial trunks. ulnar styloid transposition a surgical procedure for correction of growth deformity resulting from premature closure of the distal ulnar physis. The distal tip of the ulna is fused to the distal radial epiphysis. transposition of great vessels Transposition of great arteries Pediatric surgery A congenital cyanotic heart defect in which the position of the aorta and pulmonary artery is transposed; absence of a communication between the pulmonary
circulation and the systemic circulation is fatal; usually there is an associated defect that permits mixing of the systemic and pulmonary circulation to provide oxygenated blood to the body Prenatal risk factors Maternal rubella or other viral
illnesses during pregnancy, poor prenatal nutrition, maternal alcoholism, maternal age > 40, DM Clinical Early onset of cyanosis, SOB. See Congenital heart disease. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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transportation transposable transposable element transposase transpose transposition transposition of gender-identity/role transposition of great vessels Transposition of the great arteries transposition of the great vessels transposon transpubic transpulmonary pressure transpyloric plane transrectal ultrasonography |
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