Document Detail

Biological gestational age and its calendar assessment with ultrasound. Part 1: Physiological considerations.
MedLine Citation:
PMID:  1392635     Owner:  NLM     Status:  MEDLINE    
Biological gestational age differs from calendar age, which is only its measurement. In spite of that in many countries all over the world, the rule for termination of pregnancy exclusively because its calendar duration is longer than 293 days (so-called postterm pregnancy) is widely applied. Constant increase in the blood oxytocinase level of pregnant women, just like the sonographic measurements of fetal bodies, proves the appropriate development of pregnancy with all the more accuracy, the more similar the subsequent values of the enzymatic and ultrasonographic determinations. From medical and ethical points of view the 'obstetrical' scale comprising sequential periods' pre-, at- and post-term' is an incorrect way of calculating the duration of pregnancy. Gynecologists have to use the word 'term' only to describe an individual's date of fetal maturity (birth-date) and the possible true pre- and post-term of an individual should be placed within as well as outside the normal range of deliveries.
R Klimek
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Gynäkologisch-geburtshilfliche Rundschau     Volume:  32     ISSN:  1018-8843     ISO Abbreviation:  Gynakol Geburtshilfliche Rundsch     Publication Date:  1992  
Date Detail:
Created Date:  1992-11-17     Completed Date:  1992-11-17     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  9212667     Medline TA:  Gynakol Geburtshilfliche Rundsch     Country:  SWITZERLAND    
Other Details:
Languages:  eng     Pagination:  95-9     Citation Subset:  IM    
University Institute of Obstetrics and Gynecology, Cracow, Poland.
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MeSH Terms
Birth Weight / physiology
Cystinyl Aminopeptidase / blood
Embryonic and Fetal Development / physiology*
Gestational Age*
Infant, Newborn
Labor, Obstetric / physiology
Reference Values
Ultrasonography, Prenatal / methods*
Reg. No./Substance:
EC Aminopeptidase

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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