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ductus arteriosus

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Noun1.ductus arteriosus - a blood vessel in a fetus that bypasses pulmonary circulation by connecting the pulmonary artery directly to the ascending aorta; normally closes at birth
fetus, foetus - an unborn or unhatched vertebrate in the later stages of development showing the main recognizable features of the mature animal
blood vessel - a vessel in which blood circulates
patent ductus arteriosus - a ductus arteriosus that failed to close at birth; may require surgical correction


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9) Moreover, because they are both prostaglandin synthetase inhibitors, ibuprofen and naproxen could, in theory, cause premature closure of the ductus arteriosus.
Further analysis of the circulatory/respiratory category showed that the strongest effects were observed for the "other" subcategory (ICD-9 747-748), which excludes heart malformations (ICD-9 745-746) but includes anomalies of the aorta, patent ductus arteriosus, other anomalies of the circulatory system, and all anomalies of the respiratory system.
The etiology of maternal rubella syndrome stems from affected tissue development of the newborn of those whose mothers have been exposed to the rubella virus (German measles) during the first trimester of pregnancy Symptoms include "hepatosplenomegaly, interstitial pneumonia, congenital heart defects (patent ductus arteriosus, stenosis of pulmonary trunk), low birth weight, congenital cataracts, purpura, hearing loss, inguinal hernias, mental retardation" (Magalini, 1971, pp.
 
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