Document Detail

The amniotic fluid index in normal twin pregnancies.
MedLine Citation:
PMID:  10764479     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: We sought to investigate the amniotic fluid index for individual gestational sacs of twin pregnancies. STUDY DESIGN: Four hundred eighty-eight patients with normal diamniotic twins were examined between 14 and 40 weeks' gestation. The dividing membrane between twin fetuses was identified. An amniotic fluid index was then obtained for each gestational sac. RESULTS: The median amniotic fluid index in individual twin gestational sacs rises slowly from 14 to 16 weeks' gestation to 23 to 28 weeks' gestation and then gradually declines. The median amniotic fluid index values by gestational age for twin A and twin B are not statistically different. Although twin pregnancies have a slightly lower median amniotic fluid index value than singleton pregnancies, the difference is also not statistically significant. CONCLUSION: Individual amniotic fluid indices can be obtained in twin pregnancies, and the values are comparable with those of singleton gestations.
L M Hill; M Krohn; N Lazebnik; B Tush; D Boyles; J J Ursiny
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  American journal of obstetrics and gynecology     Volume:  182     ISSN:  0002-9378     ISO Abbreviation:  Am. J. Obstet. Gynecol.     Publication Date:  2000 Apr 
Date Detail:
Created Date:  2000-05-05     Completed Date:  2000-05-05     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0370476     Medline TA:  Am J Obstet Gynecol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  950-4     Citation Subset:  AIM; IM    
Division of Ultrasound, Department of Obstetrics, Gynecology and Reproductive Sciences, Magee-Womens Hospital, Pittsburgh, Pennsylvania 15213, USA.
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MeSH Terms
Amniotic Fluid / metabolism*
Gestational Age
Pregnancy, Multiple / metabolism*
Reference Values

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