FERTILITY, IVF AND REPRODUCTIVE GENETICS: Edited by Emre Seli and Juan Antonio García VelascoWhat does morphokinetics add to embryo selection and in-vitro fertilization outcomes?Basile, Nataliaa; Caiazzo, Mauroa; Meseguer, MarcosbAuthor Information aIVI Madrid, Madrid bIVI Valencia, Valencia, Spain Correspondence to Natalia Basile, PhD, IVI Madrid, Av. Del Talgo 68, 28023 Madrid, Spain. Tel: +34 91 1802900; fax: +34 91 1802910; e-mail: email@example.com Supplemental digital content is available for this article. Direct URL citations appear in the printed text and are provided in the HTML and PDF versions of this article on the journal's Website (www.co-obgyn.com). Current Opinion in Obstetrics and Gynecology: June 2015 - Volume 27 - Issue 3 - p 193-200 doi: 10.1097/GCO.0000000000000166 Buy SDC Metrics Abstract Purpose of review Time lapse technology represents a new tool in the in-vitro fertilization (IVF) laboratory. It can aid the embryologist in the detection of objective and quantifiable markers associated with embryo viability and implantation. The purpose of this review is to explain how embryo morphokinetics can be used as an adjunct to standard morphological assessment and to evaluate its potential value to improve IVF outcomes. Recent findings Several algorithms have been developed. Some utilize early kinetic markers, whereas others rely more on later stages of embryo development. Even though over a handful of randomized control trials are in progress, at this point, only one has been published demonstrating a significant increase in implantation rates and ongoing pregnancy rates when selecting embryos on the basis of a combination of morphological assessment and morphokinetics. Summary We believe that standard morphological assessment should remain the gold standard to initiate embryo evaluation; however, if possible, it can be complemented with the use of morphokinetics. This new approach will allow the embryologist to perform a more accurate and objective embryo selection and therefore reduce the number of embryos transferred while maintaining or even improving clinical results. Copyright © 2015 YEAR Wolters Kluwer Health, Inc. All rights reserved.