Frozen versus fresh single blastocyst transfer in ovulatory women: a multicentre, randomised controlled trial
Wei D, Liu J, Sun Y, Shi Y, Zhang B, Liu J, Tan J, Liang X, Cao Y, Wang Z, Qin Y, Zhao H, Zhou Y, Ren H, Hao G, Ling X, Zhao J, Zhang Y, Qi X, Zhang L, Deng X, Chen X, Zhu Y, Wang X, Tian L, Lv Q, Ma X, Zhang H, Legro R, Chen Z. Frozen versus fresh single blastocyst transfer in ovulatory women: a multicentre, randomised controlled trial. The Lancet 2019, 393: 1310-1318. PMID: 30827784, DOI: 10.1016/s0140-6736(18)32843-5.Peer-Reviewed Original ResearchConceptsFrozen single blastocyst transferFresh single blastocyst transferSingle blastocyst transferElective single embryo transferRisk of pre-eclampsiaFrozen blastocyst transferBlastocyst transferLivebirth rateSevere ovarian hyperstimulation syndromePre-eclampsiaOvulatory womenPregnancy rateEmbryo transferOvarian hyperstimulation syndromeAcademic fertility centreFrozen-thawed single blastocyst transferHigher risk of pre-eclampsiaIn vitro fertilisationIncreased risk of pre-eclampsiaFrozen embryo transferExtended embryo cultureSingle embryo transferFertility centreHyperstimulation syndromeLower pregnancy rate