The DOI matches its Crossref record; 8 of the 8 references it cites were found in a registry or an index.
Uterine and umbilical artery velocimetry during normal labor
Open accessAbstract
Twelve normal parturients were studied with a continuous wave Doppler unit to assess changes in uterine and umbilical velocity waveforms during labor. The analysis of these waveforms included the peak systolic/end-diastolic ratio and the evaluation of a diastolic notch. Each woman served as her own control, and all fetal heart rate tracings were normal. In latent phase labor and intact membranes, the umbilical artery systolic/end diastolic ratios before, during, and after a contraction were 2 +/- 0.2, 2 +/- 0.3 and 1.95 +/- 0.3 (N.S.). Similar results were obtained in the active phase, after rupture of membranes, or during oxytocin stimulation. This stability of the fetal cardiovascular system ensures an uninterrupted gas exchange process during the contractions (on the fetal side), enabling the great majority of term fetuses to tolerate labor with minimal if any metabolic changes. The uterine artery end-diastolic velocity fell progressively during the contraction, reaching 0 when the intrauterine pressure exceeded 35 mm Hg. Despite intrauterine pressure of greater than 60 mm Hg, the diastolic notch did not appear. Thus at term, the umbilical artery velocity waveform does not change over a wide range of uterine pressures. The changes seen in the uterine artery waveforms suggest that the end-diastolic component is primarily determined by changes in the arcuate and spiral arteries, both of which are affected during the uterine contraction.
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“At 35 mm Hg of intrauterine pressure, which is the level at which we can usually feel the contractions on the abdominal wall, the uteroplacental blood flow disappears at the end of diastole, and at 60 mm Hg diastolic flow ceases completely.”
From Umbilical cord pH, blood gases, and lactate at birth: normal values, interpretation, and clinical utility. (2023) · cites this paper as [12]
Citations
Cites
Non-invasive measurement of human fetal circulation using ultrasound: a new method.
FitzGerald, D. E., & Drumm, J. E. (1977) · BMJ · doi:10.1136/bmj.2.6100.1450 · Cited by 397
FETAL BLOOD VELOCITY WAVEFORMS IN NORMAL PREGNANCY
Stuart, B., Drumm, J., FitzGerald, D. E., & Duignan, N. M. (1980) · BJOG: An International Journal of Obstetrics & Gynaecology · doi:10.1111/j.1471-0528.1980.tb04613.x · Cited by 309
Uterine artery Doppler velocimetry in pregnant women with hypertension
Fleischer, A., Schulman, H., Farmakides, G., Bracero, L., Grunfeld, L., Rochelson, B., & Koenigsberg, M. (1986) · American Journal of Obstetrics and Gynecology · doi:10.1016/0002-9378(86)90462-x · Cited by 283
Umbilical artery velocity waveforms and intrauterine growth retardation
Fleischer, A., Schulman, H., Farmakides, G., Bracero, L., Blattner, P., & Randolph, G. (1985) · American Journal of Obstetrics and Gynecology · doi:10.1016/0002-9378(85)90278-9 · Cited by 270
Umbilical velocity wave ratios in human pregnancy
Schulman, H., Fleischer, A., Stern, W., Farmakides, G., Jagani, N., & Blattner, P. (1984) · American Journal of Obstetrics and Gynecology · doi:10.1016/0002-9378(84)90541-6 · Cited by 214
Development of uterine artery compliance in pregnancy as detected by Doppler ultrasound
Schulman, H., Fleischer, A., Farmakides, G., Bracero, L., Rochelson, B., & Grunfeld, L. (1986) · American Journal of Obstetrics and Gynecology · doi:10.1016/0002-9378(86)90340-6 · Cited by 178
Fetal blood velocity waveforms
McCallum, W. D., Williams, C. S., Napel, S. A., & Daigle, R. E. (1978) · American Journal of Obstetrics and Gynecology · doi:10.1016/0002-9378(78)90779-2 · Cited by 151
FETAL BLOOD VELOCITY WAVEFORMS IN UNCOMPLICATED LABOUR
Stuart, B., Drumm, J., Fitzgerald, D. E., & Duignan, N. M. (1981) · BJOG An International Journal of Obstetrics & Gynaecology · doi:10.1111/j.1471-0528.1981.tb02220.x · Cited by 50
Cited by
Oxidative Stress, Gene Expression, and Protein Changes Induced in the Human Placenta during Labor
Cindrova-Davies, T., Yung, H.-W., Johns, J., Spasic-Boskovic, O., Korolchuk, S., Jauniaux, E., Burton, G. J., & Charnock-Jones, D. S. (2007) · The American Journal of Pathology · doi:10.2353/ajpath.2007.070528 · Cited by 297
Optimising sample collection for placental research
Burton, G. J., Sebire, N. J., Myatt, L., Tannetta, D., Wang, Y.-L., Sadovsky, Y., Staff, A. C., & Redman, C. W. (2014) · Placenta · doi:10.1016/j.placenta.2013.11.005 · Cited by 263
The physiology of intrapartum fetal compromise at term
Turner, J. M., Mitchell, M. D., & Kumar, S. S. (2020) · American Journal of Obstetrics and Gynecology · doi:10.1016/j.ajog.2019.07.032 · Cited by 194
Elevated uterine activity increases the risk of fetal acidosis at birth
Bakker, P. C. A. M., Kurver, P. H. J., Kuik, D. J., & Van Geijn, H. P. (2007) · American Journal of Obstetrics and Gynecology · doi:10.1016/j.ajog.2006.11.035 · Cited by 184
Review: Oxygen and trophoblast biology – A source of controversy
Tuuli, M. G., Longtine, M. S., & Nelson, D. M. (2011) · Placenta · doi:10.1016/j.placenta.2010.12.013 · Cited by 165
Metadata
- Authors
- Fleischer, A., Anyaegbunam, A. A., Schulman, H., Farmakides, G., & Randolph, G.
- Affiliations
- Winthrop-University Hospital (US)
- Corresponding author
- Fleischer, A.
- Venue
- American Journal of Obstetrics and Gynecology
- Publisher
- Elsevier BV
- Published
- 1987-07
- Volume
- 157
- Issue
- 1
- Pages
- 40-43
- ISSN
- 0002-9378 (ISSN-L)
- OpenAlex
- W2026754444
- Cited by
- 103
- References
- 8
- Citations by year
- 2026: 3 · 2025: 3 · 2024: 1 · 2023: 3 · 2022: 1 · 2021: 2 · 2020: 4 · 2019: 5 · 2018: 7 · 2017: 2 · 2016: 4 · 2014: 2 · 2013: 3 · 2012: 6
- FWCI
- 5.19
- Type
- journal article
- Language
- en
- Open access
- hybrid
- doi.org
- Licence
- cc-by-nc-nd
- www.elsevier.com/tdm/userlicense/1.0/ (tdm)
- www.elsevier.com/legal/tdmrep-license (tdm)
- creativecommons.org/licenses/by-nc-nd/4.0/ (vor, 9971 d)
- Locations
- American Journal of Obstetrics and Gynecology (publishedVersion, cc-by-nc-nd)
- PubMed (publishedVersion)
- Topics
- Health Sciences › Medicine › Obstetrics and Gynecology › Maternal and Perinatal Health Interventions
- Health Sciences › Medicine › Obstetrics and Gynecology › Pregnancy and preeclampsia studies
- Health Sciences › Medicine › Pediatrics, Perinatology and Child Health › Maternal and fetal healthcare
- Keywords
- uterine artery, umbilical artery, uterine contraction, labor, Doppler velocimetry, systolic/diastolic ratio, diastolic notch, fetal cardiovascular system, intrauterine pressure, term pregnancy
- MeSH terms
- Blood Flow Velocity, Female, Humans, Labor, Obstetric, Pregnancy, Rheology, Umbilical Arteries, Uterine Contraction, Uterus
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- CoChat. (2026). Citation check: Uterine and umbilical artery velocimetry during normal labor. https://app.cochat.ai/papers/10.1016/s0002-9378(87)80342-3
- The paper
- Fleischer, A., Anyaegbunam, A. A., Schulman, H., Farmakides, G., & Randolph, G. (1987). Uterine and umbilical artery velocimetry during normal labor. American Journal of Obstetrics and Gynecology. https://doi.org/10.1016/s0002-9378(87)80342-3
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
