Document Detail


Curve of amniotic fluid index measurements in low-risk pregnancy.
MedLine Citation:
PMID:  17230287     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVES: To establish a curve of amniotic fluid index [AFI] measurements from the 20th to the 42nd week of pregnancy. METHODS: A prospective and descriptive study was performed, in which an independent sample of 2,868 low-risk pregnant women were studied using routine ultrasound, including fetal biometry and measurement of AFI. Data were analysed using multiple linear regression, and constructing a curve using 2.5th, 10th, 50th, 90th and 97.5th percentiles of the AFI measurements, according to gestational age, and after submitting values to smoothing process using quadratic polynomial adjustment. RESULTS: There was a significant variation in AFI measurements at the different gestational ages. The 50th percentile remained practically constant at approximately 150 mm between the 20th and 33rd week, after which there was a decline in volume, which became evident after the 38th week. At the 40th week, the 10th percentile was around 62 mm and the 2.5th percentile around 33 mm. CONCLUSIONS: The curve of percentiles of AFI measurements in low-risk pregnant women showed significant decrease with gestational age, especially after the 33rd week. These data should be validated for a diagnosis of increased or decreased volumes of amniotic fluid at specific gestational ages.
Authors:
Maria Regina Machado; Jose Guilherme Cecatti; Fabiana Krupa; Anibal Faundes
Related Documents :
3989257 - Increased amniotic vasopressin levels in experimentally growth-retarded rat fetuses.
7810467 - Diagnostic ultrasound in labor and delivery.
7400917 - Immune complexes in the sera and amniotic fluids of human pregnancy.
172827 - Fetal lung maturatio. iii. amniotic fluid phosphatidic acid phosphohydrolase (papase) a...
17482177 - Management of poor responders: can outcomes be improved with a novel gonadotropin-relea...
20230327 - Correlation between maternal first trimester plasma leptin levels and birth weight amon...
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Acta obstetricia et gynecologica Scandinavica     Volume:  86     ISSN:  0001-6349     ISO Abbreviation:  Acta Obstet Gynecol Scand     Publication Date:  2007  
Date Detail:
Created Date:  2007-01-18     Completed Date:  2007-02-15     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0370343     Medline TA:  Acta Obstet Gynecol Scand     Country:  Denmark    
Other Details:
Languages:  eng     Pagination:  37-41     Citation Subset:  IM    
Affiliation:
Department of Obstetrics and Gynecology, University of Campinas (UNICAMP), Campinas, Brazil.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Adolescent
Adult
Amniotic Fluid / physiology*,  ultrasonography
Female
Gestational Age
Humans
Linear Models
Middle Aged
Pregnancy / physiology*
Pregnancy Trimester, Second / physiology
Pregnancy Trimester, Third / physiology
Prospective Studies
Reference Values
Ultrasonography, Prenatal*

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


Previous Document:  A survey of knowledge, attitude and practice of malaria management among pregnant women from two hea...
Next Document:  Perceptions and attitudes of pregnant women towards caesarean section in urban Nigeria.