| Uteroplacental and luteal circulation in normal first-trimester pregnancies: Doppler ultrasonographic and morphologic study. | |
| | |
MedLine Citation:
|
PMID: 8623819 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
OBJECTIVE: Our purpose was to establish reference data representative of normal findings at transvaginal color and spectral Doppler ultrasonographic examination of the uteroplacental and luteal circulation in the first trimester and to relate the Doppler findings to morphologic data. STUDY DESIGN: A cross-sectional study was performed of 64 uncomplicated pregnancies of 5 to 11 completed gestational weeks terminated by legal abortion for psychosocial reasons. Doppler examinations of the main uterine arteries, subchorionic arteries, intrachorionic area, and corpus luteum were performed. Abortion material was examined morphologically. RESULTS: In the uterine and subchorionic arteries blood flow velocity increased and pulsatility index values decreased with advancing gestation. Arterial or venous Doppler shift spectra were recorded from the intrachorionic area in 91% (58/64) of the pregnancies. Intrachorionic arterial blood flow velocities and pulsatility index values were low and did not change with advancing gestation; the mean time-averaged maximum velocity, peak systolic velocity, and pulsatility index values were 4.6 cm/sec, 6.0 cm/sec, and 0.47, respectively. Morphologic examination showed trophoblast plugs in the spiral arteries to consistently manifest multiple spaces containing red blood cells at the choriodecidual junction. CONCLUSION: Blood flow velocity in the uteroplacental arteries increases and pulsatility index values decrease with advancing gestation, indicating a steady increase in uterine perfusion during the first trimester. Our findings suggest intervillous flow to be present as early as the first trimester. |
| | |
Authors:
|
L Valentin; P Sladkevicius; R Laurini; H Söderberg; K Marsal |
Related Documents
:
|
11483929 - Reversed end-diastolic flow in first-trimester umbilical artery: an ominous new sign fo... 15991529 - The significance of doppler flow in early detection of uterine sarcoma in older primigr... 2488669 - Significance of velocimetry as a monitor of fetal assessment and management. 12796939 - The acardiac twin: a case report using color doppler ultrasonography. 16263599 - Mid-trimester placentation assessment in high-risk pregnancies using maternal serum scr... 17065039 - Circulating angiogenic factors and abnormal uterine artery doppler velocimetry in the s... 15760379 - Class iii-iv proliferative lupus nephritis and pregnancy: a study of 42 cases. 21123309 - Hysterosalpingogram: an essential examination following essure hysteroscopic sterilisat... 10864829 - Detection of steroidogenic acute regulatory protein in equine ovaries. |
Publication Detail:
|
Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
|
Title: American journal of obstetrics and gynecology Volume: 174 ISSN: 0002-9378 ISO Abbreviation: Am. J. Obstet. Gynecol. Publication Date: 1996 Feb |
Date Detail:
|
Created Date: 1996-06-17 Completed Date: 1996-06-17 Revised Date: 2006-11-15 |
Medline Journal Info:
|
Nlm Unique ID: 0370476 Medline TA: Am J Obstet Gynecol Country: UNITED STATES |
Other Details:
|
Languages: eng Pagination: 768-75 Citation Subset: AIM; IM |
Affiliation:
|
Department of Obstetrics and Gynecology, Malmö University Hospital, Sweden. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Adolescent Adult Arteries / ultrasonography Blood Flow Velocity Corpus Luteum / blood supply* Female Humans Placenta / anatomy & histology, blood supply* Placental Circulation* Pregnancy Pregnancy Trimester, First Pulsatile Flow Ultrasonography, Doppler* Ultrasonography, Doppler, Color Uterus / anatomy & histology, blood supply* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Pregnancy outcomes and health care use: effects of abuse.
Next Document: Change in serum beta-human chorionic gonadotropin after abortion with methotrexate and misoprostol.