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amniotic sac
(redirected from amniotomy)

   Also found in: Medical, Encyclopedia, Wikipedia 0.01 sec.
amniotic sac
See amnion.
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.amniotic sac - thin innermost membranous sac enclosing the developing embryo of higher vertebrates (reptiles, birds and mammals)amniotic sac - thin innermost membranous sac enclosing the developing embryo of higher vertebrates (reptiles, birds and mammals)
amniote - any member of the Amniota
mammal, mammalian - any warm-blooded vertebrate having the skin more or less covered with hair; young are born alive except for the small subclass of monotremes and nourished with milk
fetal membrane - any membrane that functions for the protection or nourishment or respiration or excretion of a developing fetus
sac - a structure resembling a bag in an animal


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But, a recent review of 14 randomized controlled trials comparing amniotomy alone to preserving the membrane found that amniotomy neither significantly shortened the first stage of labor when compared to a natural progression, nor did it improve maternal satisfaction with the childbirth experience.
AMNIOTOMY Artificially breaking the amniotic sac is done routinely at many hospitals to speed labor up, get labor going, to test the fluid or to get it out of the way so that an internal monitor can be screwed into the baby's head.
Keirse, Amniotomy or Oxytocin for Induction of Labor: Re-Analysis of a Randomized Controlled Trial, 67 Acta Obstetricia et Gynecologica Scandinavica 731 (1988).
 
 
 
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