| Color Doppler imaging and in vivo assessment of the anatomy and physiology of the early uteroplacental circulation. | |
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MedLine Citation:
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PMID: 8339826 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVE: To evaluate in vivo the anatomy and physiology of the normal early uteroplacental circulation. DESIGN: Forty-six women were included, all of whom continued their pregnancy into the second trimester. Color Doppler was used to identify peritrophoblastic flow, and spectral Doppler was used to analyze waveforms obtained from the different segments of the uteroplacental circulation. RESULTS: Flow was detected in the spiral arteries of the peritrophoblastic region in all patients. Flow was detected within the intervillous space in only one case. CONCLUSIONS: This study demonstrated that color Doppler imaging can be employed as an in vivo means of studying the uteroplacental circulation. The study confirmed the in vitro findings that trophoblastic invasion of the decidual spiral arteries occurs at 5 to 6 weeks' gestation. The study also confirmed the fact that there is no noticeable blood flow within the intervillous space during most of the first trimester of a normal pregnancy. Both of these findings may serve to protect the early gestation from the forces of arterial blood flow. |
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Authors:
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R Jaffe; J R Woods |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Fertility and sterility Volume: 60 ISSN: 0015-0282 ISO Abbreviation: Fertil. Steril. Publication Date: 1993 Aug |
Date Detail:
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Created Date: 1993-09-02 Completed Date: 1993-09-02 Revised Date: 2004-11-17 |
Medline Journal Info:
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Nlm Unique ID: 0372772 Medline TA: Fertil Steril Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 293-7 Citation Subset: IM |
Affiliation:
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Department of Obstetrics and Gynecology, University of Rochester School of Medicine and Dentistry, New York. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Female Gestational Age Humans Placenta / blood supply*, ultrasonography* Pregnancy Pregnancy Trimester, First* Regional Blood Flow Uterus / blood supply*, ultrasonography* Vascular Resistance |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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