The Istanbul consensus workshop on embryo assessment: Proceedings of an expert meeting

Baak Balaban, Daniel Brison, Gloria Calderón, James Catt, Joe Conaghan, Lisa Cowan, Thomas Ebner, David Gardner, Thorir Hardarson, Kersti Lundin, M. Cristina Magli, David Mortimer, Sharon Mortimer, Santiago Munné, Dominique Royere, Lynette Scott, Johan Smitz, Alan Thornhill, Jonathan Van Blerkom, Etienne Van Den Abbeel

    Research output: Contribution to journalArticlepeer-review


    BACKGROUND: Many variations in oocyte and embryo grading make inter-laboratory comparisons extremely difficult. This paper reports the proceedings of an international consensus meeting on oocyte and embryo morphology assessment. Methods Background presentations about current practice were given. Results The expert panel developed a set of consensus points to define the minimum criteria for oocyte and embryo morphology assessment. CONCLUSIONS It is expected that the definition of common terminology and standardization of laboratory practice related to embryo morphology assessment will result in more effective comparisons of treatment outcomes. This document is intended to be referenced as a global consensus to allow standardized reporting of the minimum data set required for the accurate description of embryo development. © The Author 2011. Published by Oxford University Press on behalf of the European Society of Human Reproduction and Embryology. All rights reserved.
    Original languageEnglish
    Pages (from-to)1270-1283
    Number of pages13
    JournalHuman Reproduction
    Issue number6
    Publication statusPublished - Jun 2011


    • assisted conception
    • consensus meeting
    • embryo assessment


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