Transfer of cryopreserved-thawed pre-embryos in a cycle using exogenous steroids without prior gonadotrophin-releasing hormone agonist suppression yields favourable pregnancy results

John T. Queenan, Jacques W. Ramey, Howard J. Seltman, Lisa Eure, Lucinda L. Veeck, Suheil J. Muasher

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

We have analysed the use of a programmed cycle of administration of exogenous steroids without prior suppression with a gonadotrophin-releasing hormone agonist (GnRHa) for the transfer of cryopreserved-thawed pre-embryos. From July 1992 to June 1994, 199 cycles (162 patients) were studied. Pre-embryos had been previously cryopreserved at the pronuclear stage using 1.5 M 1,2-propanediol as a cryoprotectant. Preparation of the endometrium was achieved in a step-up regime with transdermal oestradiol patches (0.1 to 0.4 mg). Progesterone in oil (50 mg i.m.) was started on cycle day 13. Pre-embryos were thawed on day 14 and transferred on day 15 after evidence of survival and cleavage. The mean (± SD) age of patients undergoing transfer was 35.4 ± 4.3 years. The mean number of pre-embryos thawed was 4.7 ± 1.8 with a mean of 3.3 ± 1.4 pre-embryos being transferred. Eight of the cycles demonstrated follicular development > 16 mm prior to thaw and transfer; however, these patients did not demonstrate a luteinizing hormone surge. Mean endometrial thickness on day 13 was 10.8 ± 2.1 mm. Overall pregnancy rate was 29.2% (57/195). The ongoing or delivery rate was 16.1% (32/195). The rate of preclinical losses per transfer was 6.2% (12/195). Overall, the implantation rate was 6.2% (47/757). Thus, the use of a programmed cycle for cryopreserved embryo transfer yields favourable pregnancy outcome and offers practical advantages to patients. Prior suppression with a GnRHa is not necessary for endometrial preparation.

Original languageEnglish (US)
Pages (from-to)1176-1180
Number of pages5
JournalHuman Reproduction
Volume12
Issue number6
DOIs
StatePublished - Jun 1997

Fingerprint

Gonadotropin-Releasing Hormone
Embryonic Structures
Steroids
Pregnancy
Transdermal Patch
Patient Transfer
Propylene Glycol
Embryo Transfer
Pregnancy Rate
Pregnancy Outcome
Luteinizing Hormone
Endometrium
Progesterone
Estradiol
Oils
Survival

Keywords

  • Cryopreservation
  • Endometrial preparation
  • GnRH agonist
  • IVF

ASJC Scopus subject areas

  • Reproductive Medicine
  • Obstetrics and Gynecology

Cite this

Transfer of cryopreserved-thawed pre-embryos in a cycle using exogenous steroids without prior gonadotrophin-releasing hormone agonist suppression yields favourable pregnancy results. / Queenan, John T.; Ramey, Jacques W.; Seltman, Howard J.; Eure, Lisa; Veeck, Lucinda L.; Muasher, Suheil J.

In: Human Reproduction, Vol. 12, No. 6, 06.1997, p. 1176-1180.

Research output: Contribution to journalArticle

Queenan, John T. ; Ramey, Jacques W. ; Seltman, Howard J. ; Eure, Lisa ; Veeck, Lucinda L. ; Muasher, Suheil J. / Transfer of cryopreserved-thawed pre-embryos in a cycle using exogenous steroids without prior gonadotrophin-releasing hormone agonist suppression yields favourable pregnancy results. In: Human Reproduction. 1997 ; Vol. 12, No. 6. pp. 1176-1180.
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