Placenta
Volume 28, Issue 5 , Pages 516-522 , May 2007

Longitudinal Blood Flow in Shared (Arteriovenous Anastomoses) and Non-Shared Cotyledons in Monochorionic Placentae

  • L.Y. Wee

      Affiliations

    • Experimental Fetal Medicine Group, Institute of Reproductive and Developmental Biology, Imperial College London, Hammersmith Campus, London, UK
    • Centre for Fetal Care, Queen Charlotte's and Chelsea Hospital, London, UK
    • Corresponding Author InformationCorresponding author. Fetal Medicine Unit, Elizabeth Garrett Anderson Hospital, Huntley Street, London WC1E 6DH, UK. Tel.: +44 20 7380 9872.
    • ,
  • M. Sullivan

      Affiliations

    • Experimental Fetal Medicine Group, Institute of Reproductive and Developmental Biology, Imperial College London, Hammersmith Campus, London, UK
    • ,
  • K. Humphries

      Affiliations

    • Radiological Science Unit, Hammersmith Hospital, Du Cane Road, London, UK
    • ,
  • N.M. Fisk

      Affiliations

    • Experimental Fetal Medicine Group, Institute of Reproductive and Developmental Biology, Imperial College London, Hammersmith Campus, London, UK
    • Centre for Fetal Care, Queen Charlotte's and Chelsea Hospital, London, UK

,Accepted 3 September 2006.

References 

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  2. Minakami H, Honma Y, Matsubara S, Uchida A, Shiraishi H, Sato I. Effects of placental chorionicity on outcome in twin pregnancies. A cohort study. J Reprod Med. 1999;44(7):595–600
  3. Lynch A, McDuffie R, Stephens J, Murphy J, Faber K, Orleans M. The contribution of assisted conception, chorionicity and other risk factors to very low birthweight in a twin cohort. Br J Gynaecol. 2003;110(4):405–410
  4. Dube J, Dodds L, Armson BA. Does chorionicity or zygosity predict adverse perinatal outcomes in twins?. Am J Obstet Gynecol. 2002;186(3):579–583
  5. Denbow ML, Cox P, Taylor M, Hammal DM, Fisk NM. Placental angioarchitecture in monochorionic twin pregnancies: relationship to fetal growth, fetofetal transfusion syndrome, and pregnancy outcome. Am J Obstet Gynecol. 2000;182(2):417–426
  6. Denbow ML, Taylor M, Cox P, Fisk NM. Derivation of rate of arterio-arterial anastomotic transfusion between monochorionic twin fetuses by Doppler waveform analysis. Placenta. 2004;25(7):664–670
  7. Jacobson SL, Eicher A, Paul M, Giraud G, Morton M, Thornburg K. The sequential effects of estrogen administration and hypertension on cardiac functions in ewes. Am J Obstet Gynecol. 1998;179:610–619
  8. Rasanen J, Wood D, Weiner S, Ludomirski A, Huhta J. Role of the pulmonary circulation in the distribution of human fetal cardiac output during second half of pregnancy. Circulation. 1996;94:1068–1973
  9. Wigglesworth J. Vascular organisation of the human placenta. Nature. 1967;216:1120–1121
  10. Kaufmann P. Basic morphology of the fetal and maternal circuits in the human placenta. Contrib Gynaecol Obstet. 1985;13:5–17
  11. Wee LY, Sebire NJ, Bhundia J, Sullivan M, Fisk NM. Histomorphometric Characterisation of shared and non-shared cotyledonary villus territories of monochorionic placentae in relation to pregnancy complications. Placenta. 2006;27(4-5):475–482
  12. Taylor MJO, Farquharson D, Cox PM, Fisk NM. Identification of arterio-venous anastomoses in vivo in monochorionic twin pregnancies: preliminary report. Ultrasound Obstet Gynecol. 2001;16(3):218–222
  13. Taylor M. Haemodynamic causes and consequences of twin-twin transfusion syndrome. PhD thesis. London: University of London; 2003.
  14. Fisk N, Bennett P. Prenatal Determination of chorionicity and zygosity. In:  Ward H,  Whittle M,  Patel N editor. Proceedings of the RCOG Study Group on Multiple Pregnancy. London: RCOG press; 1995;
  15. Quintero RA, Morales WJ, Allen MH, Bornick PW, Johnson PK, Kruger M. Staging of twin-twin transfusion syndrome. J Perinatol. 1999;19(8 Pt 1):550–555
  16. Wee LY, Fisk NM. The twin-twin transfusion syndrome. Semin Neonatol. 2002;7(3):187–202
  17. Barnett S, Maulik D. Guidelines and recommendations for safe use of Doppler ultrasound in perinatal applications. J Matern Fetal Med. 2001;10:75–84
  18. Wee LY, Taylor M, Watkins N, Franke V, Parker K, Fisk NM. Characterisation of deep arterio-venous anastomoses within monochorionic placentae by vascular casting. Placenta. 2005;26(1):19–24
  19. Lewi L, Jani J, Cannie M, Robyr R, Ville Y, Hecher K, et al. Intertwin anastomoses in monochorionic placentas after fetoscopic laser coagulation for twin-to-twin transfusion syndrome: is there more than meets the eye?. Am J Obstet Gynecol. 2006;194(3):790–795
  20. Nakata M, Martinez JM, Diaz C, Chmait R, Quintero RA. Intra-amniotic Doppler measurement of blood flow in placental vascular anastomoses in twin-twin transfusion syndrome. Ultrasound Obstet Gynecol. 2004;24(1):102–103
  21. Kiserud T, Ramussen S. How repeat measurement affect the mean diameter of the umbilical vein and ductus venosus. Ultrasound Obstet Gynecol. 1998;11:419–425

PII: S0143-4004(06)00221-9

doi: 10.1016/j.placenta.2006.09.001

Placenta
Volume 28, Issue 5 , Pages 516-522 , May 2007

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