Objective To compare pregnancy and neonatal outcomes after fresh and vitrified-warmed
single-blastocyst transfers. Design Retrospective study. Setting Private in vitro fertilization …

Selective single-blastocyst transfer (SBT) in fresh cycles has been effective in reducing
multiple pregnancies. However, we do not know whether this successful strategy of fresh …

Objective To compare live-birth rates, blastocyst to live-birth efficiency, gestational age, and
birth weights in a large cohort of patients undergoing single versus double thawed …

Objective To compare the clinical outcomes between fresh and vitrified-thawed day 5
blastocyst transfers. Design Retrospective case control study. Setting Tertiary referral center …

Purpose The purpose of this study was to compare clinical and ongoing pregnancy rates in
cycles with single embryo transfer (SET) of blastocysts cryopreserved on day 5 or day 6. Our …

OBJECTIVE: To evaluate implantation of day 5 and day 6 vitrified and slow-frozen
blastocysts. DESIGN: Retrospective analysis comparing two cryopreservation techniques …

Little information is available on perinatal outcome of cryopreserved day-7 blastocyst
transfer. In the present report, perinatal outcomes for transfers of cryopreserved blastocysts …

STUDY QUESTION What are the clinical efficacy and perinatal outcomes following transfer
of vitrified blastocysts compared with transfer of fresh or of slow frozen blastocysts …

Research question Does vitrification and warming affect live birth rate, infant birth weight
and timing of delivery? Design Retrospective, cohort study comparing outcomes of donor …

Purpose The purpose of this matched-cohort study was to assess endometrial receptivity to
blastocyst implantation in fresh embryo transfer by comparing implantation outcomes of …