Blood flow Doppler velocimetry measured during active labor

Joel Baron, Polina Shwarzman, Eyal Sheiner, Adi Y. Weintraub, Efrat Spiegel, Yael Sciaky, Doron Dukler, Reli Hershkovitz

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Purpose: To evaluate blood flow Doppler velocimetry during the first and second stages of active labor. Methods: A prospective observational study was performed. Patients at term (37–42 weeks gestation), with normal fetal heart rate tracing patterns (categorized as category I) were examined during the first and second stages of labor. The sonographic parameters that were measured included the blood flow resistance of the maternal uterine artery (UtA) and umbilical artery (UA). Wilcoxon-matched pair test was used for the comparison of flows between the first and the second stages of labor. Results: UtA and UA Doppler velocimetry measurements were obtained from 31 parturients. The left (LT) and right (RT) UtA pulsatility index (PI) was lower in the second stage of labor as compared with the first stage. However, only the LT side reached a statistically significant difference (0.88 ± 0.32 and 0.73 ± 0.18; P = 0.005). Compared with the first stage of labor, UA PI was significantly higher during the second stage of labor (0.72 ± 0.17 vs. 0.84 ± 0.33; respectively, P = 0.05). Conclusion: Significant blood flow resistance changes in maternal as well as in fetal blood vessels occur during the second stage as compared with the first stage of active labor.

Original languageEnglish
Pages (from-to)837-840
Number of pages4
JournalArchives of Gynecology and Obstetrics
Volume291
Issue number4
DOIs
StatePublished - 1 Apr 2015
Externally publishedYes

Keywords

  • Active labor
  • Doppler flow velocimetry
  • Umbilical artery
  • Uterine artery

ASJC Scopus subject areas

  • Obstetrics and Gynecology

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