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Emerging technologies for improving embryo selection: a systematic review

Authors Sengul Y, Bener A, Uyar A

Received 2 July 2015

Accepted for publication 6 October 2015

Published 16 December 2015 Volume 2015:1 Pages 55—64


Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 3

Editor who approved publication: Dr Utkan Demirci

Yasemin Sengul,1 Ayse Bener,2 Asli Uyar3

1Computer Programming Program, Advanced Vocational Studies, Dogus University, Acibadem, Kadikoy, Istanbul, Turkey; 2Data Science Laboratory, Department of Mechanical and Industrial Engineering, Ryerson University, Toronto, ON, Canada; 3Department of Computer Engineering, Okan University, Tuzla, Istanbul, Turkey

Background: Embryo selection procedure is one of the critical success factors in in vitro fertilization treatment. Various embryo selection technologies have emerged within the past decade. These technologies are either used in combination with morphology or introduced to replace the conventional morphological evaluation. This review aims at investigating the effect of these novel embryo selection technologies on in vitro fertilization success rates.
Methods: A systematic review of the literature was performed among full-text English articles in the PubMed database. Study selection was based on the predefined inclusion and exclusion criteria. Clinical effectiveness of the selected studies was measured in terms of implantation, pregnancy, live birth, and multiple pregnancy rates.
Results: Five studies were identified that fitted the inclusion criteria. In these studies, researchers used aneuploidy screening, metabolomic profiling, and time-lapse imaging analysis as the new technologies. Among these studies, the one that conducted a randomized controlled trial of a commercial time-lapse imaging system demonstrated significant improvement in implantation rate.
Conclusion: Studies using emerging technologies for embryo assessment provide promising results in retrospective analysis. On the other hand, randomized controlled trial studies that test the efficacy of novel embryo selection techniques in clinical practice failed to demonstrate a consistent improvement in the resulting success rates. This review provides a snapshot of the most recent literature on embryo assessment and embryo selection studies. Our findings show that there is a lack of comparative measurements and analyses that are able to assess benefits of the novel technologies in the field of embryo selection.

Keywords: embryo selection, in vitro fertilization, IVF

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