Single blastocyst transfer: a prospective randomized trial
Single blastocyst transfer: a prospective randomized trial
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DOI:
10.1016/j.fertnstert.2003.07.023
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发表时间:
2004-03-01
影响因子:
6.7
通讯作者:
Schoolcraft, WB
中科院分区:
文献类型:
--
作者:
Gardner, DK;Surrey, E;Schoolcraft, WB
Objective: To determine the efficacy of single blastocyst transfer.Design: Prospective randomized trial.Setting: Private assisted reproductive technology unit.Patient(s): Forty-eight women undergoing IVF-embryo transfer with day 3 FSH less than or equal to 10 mIU/mL and at least 10 follicles >12 mm in diameter on day of hCG administration.Intervention(s): Embryo culture to the blastocyst stage in sequential media G1/G2 followed by transfer of either one or two blastocysts.Main Outcome Measure(s): Implantation rate, ongoing pregnancy rate, and twinning.Result(s): The transfer of a single blastocyst resulted in an implantation and ongoing pregnancy rate of 60.9% with no twins. The transfer of two blastocysts resulted in an implantation rate of 56%, an ongoing pregnancy rate of 76% with a 47.4% incidence of twins.Conclusion(s): Single blastocyst transfer is an effective method of eliminating multiple births while maintaining high pregnancy rates in this selected group of patients.