Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1979-6-26
pubmed:abstractText
The prostaglandin synthetase inhibitor indomethacin was given orally or intravenously to pregnant ewes. This resulted in the fetal pulmonary to systemic arterial mean blood pressure difference across the ductus arteriosus rising significantly, presumably secondary to constriction of the ductus arteriosus. The pressure difference was due to pulmonary arterial hypertension, and not due to a fall in systemic arterial mean blood pressure. Fetal arterial blood gas tensions and pH values were normal throughout. In five experiments the pressure difference could be promptly but temporarily reversed by the administration of PGE1 into the fetal inferior vena cava. Indomethacin was present in fetal blood, and maternal plasma prostaglandin levels were suppressed. Indomethacin administration during pregnancy causes constriction of the fetal ductus arteriosus and fetal pulmonary arterial hypertension which, if severe, may cause rapid fetal death. It is possible that this mechanism may be one cause of persistent pulmonary hypertension or tricuspid insufficiency or both in the newborn infant.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0022-3476
pubmed:author
pubmed:issnType
Print
pubmed:volume
94
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
647-50
pubmed:dateRevised
2003-11-14
pubmed:meshHeading
pubmed:year
1979
pubmed:articleTitle
Constriction of the fetal ductus arteriosus after administration of indomethacin to the pregnant ewe.
pubmed:publicationType
Journal Article