Fertility and Sterility
Volume 94, Issue 1 , Pages 350.e8-350.e11 , June 2010

An ongoing pregnancy from two waves of follicles developing during a long follicular phase of the same cycle

  • Yaakov Bentov, M.D., M.Sc.

      Affiliations

    • Toronto Centre for Advanced Reproductive Technology, Toronto, Ontario, Canada
    • The Division of Reproductive Sciences, Department of Obstetrics and Gynecology, University of Toronto, Toronto, Ontario, Canada
    • Samuel Lunenfeld Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada
    • ,
  • Navid Esfandiari, D.V.M., Ph.D., H.C.L.D.

      Affiliations

    • Toronto Centre for Advanced Reproductive Technology, Toronto, Ontario, Canada
    • The Division of Reproductive Sciences, Department of Obstetrics and Gynecology, University of Toronto, Toronto, Ontario, Canada
    • ,
  • Asli Gokturk, M.Sc.

      Affiliations

    • Toronto Centre for Advanced Reproductive Technology, Toronto, Ontario, Canada
    • ,
  • Eliezer Burstein, M.D.

      Affiliations

    • Toronto Centre for Advanced Reproductive Technology, Toronto, Ontario, Canada
    • The Division of Reproductive Sciences, Department of Obstetrics and Gynecology, University of Toronto, Toronto, Ontario, Canada
    • Samuel Lunenfeld Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada
    • ,
  • Ofer Fainaru, M.D., Ph.D.

      Affiliations

    • Toronto Centre for Advanced Reproductive Technology, Toronto, Ontario, Canada
    • The Division of Reproductive Sciences, Department of Obstetrics and Gynecology, University of Toronto, Toronto, Ontario, Canada
    • Samuel Lunenfeld Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada
    • ,
  • Robert F. Casper, M.D., F.R.C.S.C.

      Affiliations

    • Toronto Centre for Advanced Reproductive Technology, Toronto, Ontario, Canada
    • The Division of Reproductive Sciences, Department of Obstetrics and Gynecology, University of Toronto, Toronto, Ontario, Canada
    • Samuel Lunenfeld Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada
    • Corresponding Author InformationReprint requests: Robert F. Casper, M.D., 150 Bloor Street W, Suite 210, Toronto, Ontario, Canada, M5S 2X9 (FAX: 416-972-0036).

Received 15 November 2009 ,Revised 9 December 2009 ,Accepted 10 December 2009.

References 

  1. World Health Organization. Laboratory manual for examination of human semen and semen-cervical mucus interaction. 4th ed.. New York: Cambridge University Press; 1999;1–20
  2. Baerwald AR, Adams GP, Pierson RA. A new model for ovarian follicular development during the human menstrual cycle. Fertil Steril. 2003;80:116–122
  3. Baerwald AR, Adams GP, Pierson RA. Characterization of ovarian follicular wave dynamics in women. Biol Reprod. 2003;69:1023–1031
  4. Baerwald AR, Pierson RA. Endometrial development in association with ovarian follicular waves during the menstrual cycle. Ultrasound Obstet Gynecol. 2004;24:453–460
  5. Birtch RL, Olatunbosun OA, Pierson RA. Ovarian follicular dynamics during conventional vs. continuous oral contraceptive use. Contraception. 2006;73:235–243
  6. Mitwally MF, Said T, Galal A, Chan S, Cohen M, Casper RF, et al. Letrozole step-up protocol: a successful superovulation protocol [abstract]. Feril Steril. 2008;89(Suppl):S24
  7. Remohi J, Gutierrez A, Cano F, Ruiz A, Simon C, Pellicer A. Long oestradiol replacement in an oocyte donation programme. Hum Reprod. 1995;10:1387–1391
  8. Imbar T, Hurwitz A. Synchronization between endometrial and embryonic age is not absolutely crucial for implantation. Fertil Steril. 2004;82:472–474
  9. Navot D, Anderson TL, Droesch K, Scott RT, Kreiner D, Rosenwaks Z. Hormonal manipulation of endometrial maturation. J Clin Endocrinol Metab. 1989;68:801–807
  10. Navot D, Bergh PA, Williams M, Garrisi GJ, Guzman I, Sandler B, et al. An insight into early reproductive processes through the in vivo model of ovum donation. J Clin Endocrinol Metab. 1991;72:408–414

 Y.B. has nothing to disclose. N.E. has nothing to disclose. A.G. has nothing to disclose. E.B. has nothing to disclose. O.F. has nothing to disclose. R.F.C. is on the scientific advisory boards for Abbott, Ferring, Insception Biosciences, Molecular Biometrics, Schering-Plough, and Wyeth; and has licensing agreements for patents with Barr Pharmaceuticals, Ortho-McNeil, EMD Serono, and Ferring; and owns stock in Insception Biosciences and Zircadium Inc.

PII: S0015-0282(09)04219-8

doi: 10.1016/j.fertnstert.2009.12.033

Fertility and Sterility
Volume 94, Issue 1 , Pages 350.e8-350.e11 , June 2010

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