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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
5
|
| pubmed:dateCreated |
1976-3-1
|
| pubmed:abstractText |
185 samples of amniotic fluid were obtained from 174 healthy women with uncomplicated pregnancies in the 15th-43rd week of pregnancy by abdominal amniocentesis or by puncture of the amniotic sac via an amnioscope. The concentrations of creatinine (183 cases), phospholipid phosphorus and the ratio of lecithin/sphingomyelin (L/S-ratio, 130 cases) were determined. The treatment of the amniotic fluid samples (centrifugation, filtration and lipid extraction) and the methods for the determination of L/S-ratio were examined and the accuracy and limitations of the latter method were defined and discussed. The relative amounts of lecithin and sphingomyelin as well as the L/S-ratio and creatinine concentration were closely correlated to gestational age. A L/S-ratio of greater than or equal to 2.25 indicated all women to be greater than or equal to 34th week of pregnancy; 64% of them had reached the 38th week. A creatinine concentration of greater than or equal to 1.8 mg% corresponded to X greater than or equal to 35th week or pregnancy, while 75% of the women had reached at least the 38th week. With a L/S-ratio greater than or equal to 2.25 and a creatinine concentration greater or equal to 1.8 mg% of all women were greater than or equal the 36th week. 71% of the women greater or equal the 38th week fulfilled these critiera. A combination of the two parameters seems to be of a great value in discrimination between gestational ages less than the 36th week and greater than or equal to the 38th week.
|
| pubmed:language |
eng
|
| pubmed:journal | |
| pubmed:citationSubset |
IM
|
| pubmed:chemical | |
| pubmed:status |
MEDLINE
|
| pubmed:issn |
0001-6349
|
| pubmed:author | |
| pubmed:issnType |
Print
|
| pubmed:volume |
54
|
| pubmed:owner |
NLM
|
| pubmed:authorsComplete |
Y
|
| pubmed:pagination |
425-36
|
| pubmed:dateRevised |
2004-11-17
|
| pubmed:meshHeading |
pubmed-meshheading:1202903-Amniocentesis,
pubmed-meshheading:1202903-Amniotic Fluid,
pubmed-meshheading:1202903-Creatinine,
pubmed-meshheading:1202903-Female,
pubmed-meshheading:1202903-Humans,
pubmed-meshheading:1202903-Meconium,
pubmed-meshheading:1202903-Phosphatidylcholines,
pubmed-meshheading:1202903-Phospholipids,
pubmed-meshheading:1202903-Pregnancy,
pubmed-meshheading:1202903-Pregnancy Trimester, Second,
pubmed-meshheading:1202903-Pregnancy Trimester, Third,
pubmed-meshheading:1202903-Sphingomyelins
|
| pubmed:year |
1975
|
| pubmed:articleTitle |
Phospholipids and creatinine in amniotic fluid in relation to gestational age.
|
| pubmed:publicationType |
Journal Article
|