Document Detail

Intra-amniotic pressure is not affected by amniocentesis between 13 and 18 weeks of gestation.
MedLine Citation:
PMID:  8262294     Owner:  NLM     Status:  MEDLINE    
Changes in amniotic fluid pressure before and after amniocentesis fell within the range of +/- 5 mmHg, except when uterine contractions were present. Intra-amniotic pressure is not affected by amniocentesis between 13 and 18 weeks of gestation. Amniotic fluid pressure was recorded in 82 pregnancies of patients undergoing genetic amniocentesis to determine whether sampling of amniotic fluid between 13 and 18 weeks changed intra-amniotic pressure. Pressures were recorded through a needle and saline filled catheter with a zero-level at the needle tip. Amniotic fluid pressure was unrelated to gestational age (P = 0.962) during the weeks we performed our measurements. Fluid samples of 12.6% of the total volume in a group of early genetic amniocentesis (n = 65) and of 7.5% of the total volume in a group of late genetic amniocentesis (n = 17) did not change significantly amniotic fluid pressure values. An increase in pressure of more than 5 mmHg only occurred in cases where uterine contractions were present. Other than these cases, all pressure change values fell within the range of +/- 5 mmHg. No difference in pregnancy outcome were present within the two groups. An argument for a standard method for stationing pressure is presented.
A Barbera; M Buscaglia; E Ferrazzi; L Ghisoni; F Molteni; M L Costantino
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  European journal of obstetrics, gynecology, and reproductive biology     Volume:  50     ISSN:  0301-2115     ISO Abbreviation:  Eur. J. Obstet. Gynecol. Reprod. Biol.     Publication Date:  1993 Aug 
Date Detail:
Created Date:  1994-01-27     Completed Date:  1994-01-27     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0375672     Medline TA:  Eur J Obstet Gynecol Reprod Biol     Country:  IRELAND    
Other Details:
Languages:  eng     Pagination:  185-9     Citation Subset:  IM    
Department of Obstetrics and Gynecology, San Paolo-Biomedical Sciences Institute, University of Milan, Italy.
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MeSH Terms
Amniotic Fluid / physiology*
Gestational Age
Pregnancy Outcome

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