| Relationship between pitch value or S/D ratio of torsion of cord and fetal outcome. | |
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MedLine Citation:
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PMID: 20440733 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVE: To evaluate whether applying pitch values at different positions of the umbilical cord or the umbilical artery blood flow systolic/diastolic (S/D) ratio measured by color ultrasound could forecast excessive torsion of cord and help in selection of the appropriate mode of delivery. METHODS: This study included 184 pregnant women between 37 and 41 weeks of gestation and their neonates. We analyzed the umbilical cord's spiral distance, and the umbilical artery blood flow parameters at the cord's initial section, middle section and the section into the placenta. We also examined the fetal umbilical cord after birth, performed blood gas analysis of umbilical cord blood and recorded the neonatal Apgar score. RESULTS: Excessive torsion of cord diagnosed by ultrasound and in postnatal anatomy had the same rate of 91%. With lower pitch values (<2.0) and higher S/D ratios (>3.0), the possibility of fetal distress was increased, the neonatal Apgar score was decreased and umbilical blood pH values < 7.2 were more common. CONCLUSION: Pitch values and blood flow S/D ratios in different sections of the umbilical cord measured by color ultrasound could forecast excessive torsion of cord and have great significance in reducing the perinatal death rate caused by umbilical cord factors. |
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Authors:
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Chun-Fang Tian; Mei-hua Kang; Wei Wu; Li-juan Fu |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Prenatal diagnosis Volume: 30 ISSN: 1097-0223 ISO Abbreviation: Prenat. Diagn. Publication Date: 2010 May |
Date Detail:
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Created Date: 2010-05-04 Completed Date: 2010-09-13 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8106540 Medline TA: Prenat Diagn Country: England |
Other Details:
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Languages: eng Pagination: 454-8 Citation Subset: IM |
Affiliation:
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The Seventh People's Hospital of ShenZhen City, Guangdong, China. sztcf@yahoo.com.cn |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Apgar Score Blood Flow Velocity Blood Gas Analysis Case-Control Studies Female Hemorheology Humans Infant, Newborn Pregnancy Torsion Abnormality / ultrasonography* Ultrasonography, Doppler, Color Ultrasonography, Prenatal / methods* Umbilical Arteries / physiopathology*, ultrasonography* Young Adult |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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