The Istanbul consensus update: a revised ESHRE/ALPHA consensus on oocyte and embryo static and dynamic morphological assessment,

STUDY QUESTION: What are the current recommended criteria for morphological assessment of oocytes, zygotes, and embryos? SUMMARY ANSWER: The present ESHRE/Alpha Scientists in Reproductive Medicine consensus document provides several novel recommendations to assess oocyte and embryo morphology and rank embryos for transfer. WHAT IS KNOWN ALREADY: A previous Alpha Scientists in Reproductive Medicine/ESHRE consensus on oocyte and embryo morphological assessment was published in 2011. After more than a decade, and the integration of time-lapse technology into embryo culture and assessment, a thorough review and update was needed. STUDY DESIGN, SIZE, DURATION: A working group consisting of Alpha Scientists in…

• GR
  Gedeon Richter
• ES
  European Society of Human Reproduction and Embryology