O-25: Single and Dual Embryo Transfer, HowFar We Are?

Background: To explore and compare the dual embryo transfer DET with single embryo transfer SET weather electively or not, in more viewpoints like financially, and scientifically and finding out which of these policies may give better outcome by analyzing both in a neutral broad spectrum manner. Materials and Methods: A computerized comprehensive search studies ended in finding of 62 articles of which 49 are from specialized web sites consisting of randomized and non randomized clinical trials, reviews, comments, analysis, debates, and reference lists was done in the PubMed and the Cochrane Central Register of Controlled Trials (Central). Results: The comparison between all these articles found to be unreliable due to the huge variation between them all, but mainly SET has the advantage of minimizing the twinning and multiple pregnancy rate MPR, on the other hand it has less benefit when compared to DET in the matter of implantation rate IR, ongoing pregnancyrate OPR, but a comparable results may be obtained when applying eSET of frozen-thawed embryo. Conclusion: Larger clinical trials should still be encouraged for such comparison especially in applying same criteria for both methods.