Labor and membrane rupture in twin gestation : Can they affect the ability to estimate fetal weight?

Labor and membrane rupture in twin gestation : Can they affect the ability to estimate fetal weight?

To determine whether labor or fetal membrane rupture adversely affects the ability of ultrasound to accurately estimate fetal weight (EFW) in a twin gestation. A medical record audit was performed of the two-year experience of women delivering live born twins and undergoing a complete ultrasound exa...

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Bibliographic Details
Published in:Journal of reproductive medicine Vol. 46; no. 5; pp. 462 - 466
Main Authors: ROBERTS, William E, GNAM, Edward C, MAGANN, Everett F, MARTIN, James N, MORRISON, John C
Format: Journal Article
Language:English
Published: Saint-Louis, MO Science 01-05-2001
Subjects:
Adult
Biological and medical sciences
Extraembryonic Membranes - physiology
Female
Fetal Weight
Gestational Age
Gynecology. Andrology. Obstetrics
Humans
Labor, Obstetric
Management. Prenatal diagnosis
Medical sciences
Pregnancy
Pregnancy, Multiple
Pregnancy. Fetus. Placenta
Sensitivity and Specificity
Twins
Ultrasonography, Prenatal
Sonography
Ability
Human
Statistical analysis
Estimation
Discordance
Rupture
Twin
Prenatal
Accuracy
Echography
Fetus
Influence
Birth weight
Delivery
Diagnosis
Labour(obstetrics)
Twin pregnancy
Fetoplacental membrane
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Summary:To determine whether labor or fetal membrane rupture adversely affects the ability of ultrasound to accurately estimate fetal weight (EFW) in a twin gestation. A medical record audit was performed of the two-year experience of women delivering live born twins and undergoing a complete ultrasound examination within 72 hours of delivery. Those patients experiencing labor or membrane rupture at the time of the previous ultrasound examination were compared to those without these factors to determine if there was any detrimental impact on the accuracy of ultrasound to EFW. The overall ability of ultrasound to accurately EFW was in the range of 64-76%. This was not significantly different from the accuracy in women experiencing labor (62-80%) or in women with membrane rupture (63-81%). The ability of ultrasound to detect fetal discordance is this series ranged from 78% to 100%, with specificity that ranged from 84% to 89%. The ability of sonography to accurately EFW as well as detect discordant twin gestation is not altered by the presence of labor or membrane rupture.
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ISSN:0024-7758
1943-3565