Cumulative live birth rate following elective single blastocyst transfer compared with double blastocyst transfer in women aged 40 years and over

Samer Tannus*, Yoni Cohen, Weon Young Son, Tal Shavit, Michael Haim Dahan

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

This retrospective cohort study aimed to identify predictive factors for live birth following blastocyst transfer in women aged 40–43, and to compare the cumulative live birth rate (LBR) following elective single blastocyst (eSBT) and double blastocyst (DBT) transfer. The study included 411 women who had fresh blastocyst transfers on day 5. In stepwise logistic regression, independent predictive factors for live birth were: transferring fully expanded blastocysts (Gardner stage ≥3) (odds ratio [OR] 3.5, 95% confidence interval [CI] 1.59–9.71) and transferring two blastocysts compared with a single blastocyst (OR 1.7, 95% CI 1.08–2.9). Maternal age was not found to be significant (OR 0.78, 95% CI 0.62–1.1). When comparing eSBT (n = 150) with DBT (n = 151), the DBT group achieved higher LBRs (26.5 versus 19.3%, P = 0.017) and higher multiple births (0 versus 17.5%, P = 0.02). However, the cumulative LBR was similar (28.0 versus 31.1%), with significantly lower multiple births in the eSBT group (0 versus 14.9%, P = 0.03). These results indicate that in women aged 40–43, when fully expanded blastocysts are achieved, maternal age is not a predictor for live birth, and eSBT can be performed without compromising cumulative LBRs.

Original languageEnglish
Pages (from-to)733-738
Number of pages6
JournalReproductive BioMedicine Online
Volume35
Issue number6
DOIs
StatePublished - Dec 2017
Externally publishedYes

Keywords

  • Advanced maternal age
  • Blastocyst
  • Cumulative live birth rate
  • Multiple birth
  • Predictive factors

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