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Japanese Journal of Radiology

, 29:718 | Cite as

Impact of passive smoking on uterine, umbilical, and fetal middle cerebral artery blood flows

  • Sema Yildiz
  • Sibel Sezer
  • Hakan Boyar
  • Hasan Cece
  • Salih Zeki Ziylan
  • Mehmet Vural
  • Ozlem Turksoy
Original Article

Abstract

Purpose

The aim of this study was to evaluate the influence of passive maternal smoking on blood flow velocities in arteries of the fetal-placental-maternal circulation.

Materials and methods

A total of 79 pregnant women in their third trimester, including 33 passive smokers, 23 active smokers, and 23 nonsmoking controls, were enrolled in the study. Fetal biophysical indices were evaluated with B-mode scanning, whereas blood flow waveforms of uterine, umbilical, and fetal middle cerebral (MCA) arteries were analyzed with Doppler ultrasonography.

Results

There were significant differences among active smokers vs. passive smokers vs. controls with regard to the presence of a uterine artery diastolic notch (39.1% vs. 18.2% vs. 4.3%; P = 0.012); ratio of peak systolic/end-diastolic velocity of fetal MCA [3.73 ± 1.27 vs. 4.26 ± 1.20 vs. 5.00 ± 2.15, analysis of variance (ANOVA) P = 0.026]; resistance index of fetal MCA (0.74 ± 0.08 vs. 0.75 ± 0.07 vs. 0.80 ± 0.09; ANOVA P = 0.014); ratio of fetal MCA/umbilical artery resistance index (1.27 ± 0.20 vs. 1.24 ± 0.14 vs. 1.39 ± 0.21; ANOVA P = 0.011); and ratio of fetal MCA/umbilical artery pulsatility index (1.56 ± 0.44 vs. 1.63 ± 0.43 vs. 1.97 ± 0.54; ANOVA P = 0.046).

Conclusion

Effects of passive maternal smoking on the fetal-placental-maternal unit were comparable to those with active maternal smoking as determined by the means of increased resistance in the maternal vasculature and adaptive changes of cerebroplacental circulation for maintaining fetal cerebral circulation.

Key words

Doppler ultrasonography Fetal middle cerebral artery Passive maternal smoking Umbilical artery Uterine artery 

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Copyright information

© Japan Radiological Society 2011

Authors and Affiliations

  • Sema Yildiz
    • 1
  • Sibel Sezer
    • 1
  • Hakan Boyar
    • 2
  • Hasan Cece
    • 1
  • Salih Zeki Ziylan
    • 1
  • Mehmet Vural
    • 3
  • Ozlem Turksoy
    • 4
  1. 1.Department of RadiologyHarran University School of MedicineSanliurfaTurkey
  2. 2.Department of ObstetricsSanliurfa Maternity HospitalSanliurfaTurkey
  3. 3.Department of Obstetrics and GynecologyHarran University School of MedicineSanliurfaTurkey
  4. 4.Department of RadiologyZonguldak Karaelmas University School of MedicineZonguldakTurkey

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