What question did this study set out to answer?

This research aims to explore how changes in morphological scores during embryonic development impact pregnancy outcomes.

April 22, 2026Open Access

Relationships between morphological score changes during embryonic development and pregnancy outcomes

QGQiuying GanFirst Affiliated Hospital of GuangXi Medical University MWMA Wen-hongFirst Affiliated Hospital of GuangXi Medical University LLLidan Liu

Puntos clave

This research aims to explore how changes in morphological scores during embryonic development impact pregnancy outcomes.
Analyzed morphology on days 3 and 5 of embryonic development.
Evaluated the association of morphology with clinical pregnancy rates (CPR) and live birth rates (LBR).
Compared the predictive value of day 3 quality against day 5 outcomes.
Day 5 morphology serves as a strong predictor for clinical pregnancy rates and live birth rates.
Excellent-D5 embryos showed significantly better outcomes compared to others.
Day 3 morphological quality helps distinguish between high-quality day 5 embryos.

Resumen

Day 5 morphology is the primary predictor of CPR and LBR, with Excellent-D5 embryos demonstrating superior outcomes. Although day 3-5 morphological changes were not associated with CPR or LBR, day 3 quality contributed supplemental predictive value for distinguishing among top-tier day 5 embryos, thereby aiding embryo selection.

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