Title: Analysis of Effectiveness of Embryo Transfer Compared with Embryo Transfer
Abstract: Objective To evaluate the effectiveness of the blastocyst culture and transfer compared with the cleavage stage transfer.Methods Patients were recruited into this study from those embarking on IVF treatment for the reasons of fallopian tube and male infertility.The cleavage stage transfers were performed on 110 cases and the blastocyst cultures and transfers on 57 cases.The numbers of obtaining and fertilized ovum,embryonic implantation and clinical pregnant rates as well as the blastocyst formation rate、 the relationship between the embryo numbers of each transfer and the multiplets and clinical pregnant rates were evaluated.Results The numbers of obtaining and fertilized ovum rates in the blastocyst group was higher than that in the blastocyst group(4.98 and 3.98,respectively).The blastocyst formation rate was 32.9% using G1/G2 sequential culture media.The embryonic implantation rate and clinical pregnant rates were significantly higher in the blastocyst group than that in the cleavage stage group(31.2%,42.1% and 11.5%,25.5%,respectively).There was no significantly difference between transfer 2 or 3 blastocystes.It appears that the numbers of twins was reduced in transfer 2 blastocystes.Conclusion The results of our study confirmed that the blastocyst transfer has more advantages than the cleavage stage transfer in rising the embryonic implantation rate and clinical pregnant rate.Transfer 2 blastocyst is best choice for IVF-ET.
Publication Year: 2006
Publication Date: 2006-01-01
Language: en
Type: article
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