Is oligohydramnios is postterm pregnancy associated with redistribution of fetal blood flow?

      This paper is only available as a PDF. To read, Please Download here.


      OBJECTIVE: Our purpose was to determine whether postterm patients with oligohydramnios differ in their fetal and umbilical flow distributions from those with a normal volume of amniotic fluid.
      STUDY DESIGN: Pulsed-wave Doppler imaging was used prospectively to determine the resistance index in the fetal middle cerebral, renal, and umbilical arteries in 57 postterm (i.e., >41 weeks' gestation) pregnancies. Semiquantitative assessment of amniotic fluid volume was obtained by use of the ultrasonographically determined amniotic fluid index.
      RESULTS: Oligohydramnios (amniotic fluid index <5 cm) was detected in 15 patients; 42 patients with a normal amniotic fluid index served as a control group. The various resistance index values and the ratios among them were not significantly different when patients with oligohydramnios were compared with controls (0.51 ± 0.1 vs 0.52 ± 0.06, 0.63 ± 0.1 vs 0.64 ± 0.08, and 0.71 ± 0.08 vs 0.73 ± 0.05 for the umbilical, middle cerebral, and renal arteries, respectively). However, the mean birth weight (in grams) was significantly lower (3297 ± 438 vs 3742 ± 448, p < 0.003) in the oligohydramnios group.
      CONCLUSION: Oligohydramnios was not associated with a major redistribution of blood flow in postterm patients, suggesting that the cause of oligohydramnios in these patients is related to birth weight rather than to renal perfusion.


      To read this article in full you will need to make a payment

      Purchase one-time access:

      Academic & Personal: 24 hour online accessCorporate R&D Professionals: 24 hour online access
      One-time access price info
      • For academic or personal research use, select 'Academic and Personal'
      • For corporate R&D use, select 'Corporate R&D Professionals'


      Subscribe to American Journal of Obstetrics & Gynecology
      Already a print subscriber? Claim online access
      Already an online subscriber? Sign in
      Institutional Access: Sign in to ScienceDirect


        • Bochner CJ
        • Williams J
        • Castro L
        • Medearis A
        • Hobel CJ
        • Wade M
        The efficacy of starting postterm antenatal testing at 41 weeks as compared with 42 weeks of gestation.
        Am J Obstet Gynecol. 1988; 159: 550-554
      1. Preterm and postterm pregnancy and fetal growth retardation. 2nd ed. Williams' obstetrics. Appleton & Lange, Norwalk, Connecticut1993: 853-889
        • Vorherr H
        Placental insufficiency in relation to postterm pregnancy and fetal postmaturity.
        Am J Obstet Gynecol. 1975; 123: 67-103
        • Vyas S
        • Nicolaides KH
        • Campbell S
        Renal artery flow-velocity waveforms in normal and hypoxemic fetuses.
        Am J Obstet Gynecol. 1989; 161: 168-172
        • Phelan JP
        Amniotic fluid index.
        in: Chervenak FA Isaacson GC Campbell S Ultrasound in obstetrics and gynecology. Little, Brown, Boston1993: 565-568
        • Veille JC
        • Penry M
        • Mueller-Heubach E
        Fetal renal pulsed Doppled waveform in prolonged pregnancies.
        Am J Obstet Gynecol. 1993; 169: 882-884
        • Peeters JH
        • Sheldon RE
        • Jones MD
        • Makowski EL
        • Meschia JB
        Blood flow to fetal organs as a function of arterial oxygen content.
        Am J Obstet Gynecol. 1979; 135: 637-646
        • Arabin B
        • Bergman PL
        • Saling E
        Simultaneous assessment of blood flow velocity wave forms in uteroplacental vessels, the umbilical artery, the fetal aorta and the fetal common carotid artery.
        Fetal Ther. 1987; 2: 17-26
        • Veille JC
        • Kanaan C
        Duplex Doppler ultrasonography evaluation of the fetal renal artery in normal and abnormal fetuses.
        Am J Obstet Gynecol. 1989; 161: 1502-1507
        • Bilardo CM
        • Nicolaides KH
        • Campbell S
        Doppler measurements of fetal and uteroplacental circulations: relationship with umbilical venous blood gases measured at cordocentesis.
        Am J Obstet Gynecol. 1990; 161: 115-120
        • Brar HS
        • Horenstein J
        • Medearis AL
        • Platt L
        • Phelan JP
        • Paul RH
        Cerebral, umbilical, and uterine resistance using Doppler velocimetry in postterm pregnancy.
        J Ultrasound Med. 1989; 8: 187-191
        • Rightmire DA
        • Campbell S
        Fetal and maternal Doppler blood flow parameters in postterm pregnancies.
        Obstet Gynecol. 1987; 69: 891-894
        • Guidetti DA
        • Divon MY
        • Cavalieri RL
        • Langer O
        • Merkatz IR
        Fetal umbilical artery flow velocimetry in postdate pregnancies.
        Am J Obstet Gynecol. 1987; 157: 1521-1523
        • Arduini D
        • Rizzo G
        Fetal renal artery velocity waveforms and amniotic fluid volume in growth-retarded and postterm fetuses.
        Obstet Gynecol. 1991; 77: 370-373
        • Sokes HJ
        • Roberts RV
        • Newnham JP
        Doppler flow velocity waveform analysis in postdate pregnancies.
        Aust N Z J Obstet Gynecol. 1991; 31: 27-30
        • Farmakides G
        • Schulman H
        • Ducey J
        • et al.
        Uterine and umbilical artery Doppler velocimetry in postterm pregnancy.
        J Reprod Med. 1988; 33: 259-261
        • Battaglia C
        • Larocca E
        • Lanzani A
        • Coukos G
        • Genazzani R
        Doppler velocimetry in prolonged pregnancy.
        Obstet Gynecol. 1991; 77: 213-216
        • Maulik D
        • Yarlagadda P
        • Youngblood JP
        • Ciston P
        Comparative efficacy of umbilical arterial Doppler indices for predicting adverse perinatal outcome.
        Am J Obstet Gynecol. 1991; 164: 1434-1439
        • Arabin B
        • Becker R
        • Mohnhaupt A
        • Vollert W
        • Weitzel HK
        Prediction of fetal distress and poor outcome in prolonged pregnancy using Doppler ultrasound and fetal heart rate monitoring combined with stress test: II.
        Fetal Diagn Ther. 1994; 9: 1-6
        • Gilbert WM
        • Brace RA
        Amniotic fluid volume and normal flows to and from the amniotic cavity.
        Semin Perinatol. 1993; 17: 150-157
        • Robillard JE
        • Weitzam RE
        • Burmeister L
        • Smith Jr, FG
        Development aspects of the renal response to hypoxemia in the fetal lamb in utero.
        Circ Res. 1981; 48: 128-138