Clinical outcomes of co-transfer of partially and fully compacted morula versus fully compacted morula alone on day 4 - Takeaways - MDSpire

Clinical outcomes of co-transfer of partially and fully compacted morula versus fully compacted morula alone on day 4

  • By

  • Lin-Lin Tao

  • Bo Zheng

  • Fang-Fang Dai

  • Ya-Song Geng

  • Guo-Zhen Li

  • Hao-Yang Dai

  • Zhi-Wei Yang

  • Shu-Song Wang

  • Jing Ma

  • Lingyin Kong

  • June 1, 2026

  • 0 min

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  • 1

    The study evaluated day 4 double embryo transfer (DET) with fully and partially compacted morulae versus single embryo transfer (SET) with fully compacted morula.

  • 2

    After propensity score matching, no significant differences were found in clinical pregnancy rate, miscarriage rate, or live birth rate between the two transfer methods.

  • 3

    DET with fully compacted morula and partially compacted morula was associated with a significantly higher multiple pregnancy rate and preterm delivery rate.

  • 4

    Among patients under 35 or undergoing IVF, the pregnancy and neonatal outcomes were consistent with the overall study findings.

  • 5

    The study suggests that SET with fully compacted morula may be preferable for balancing clinical outcomes and multiple pregnancy rates.

Original Source(s)

Clinical outcomes of co-transfer of partially and fully compacted morula versus fully compacted morula alone on day 4

  • by Lin-Lin Tao, Bo Zheng, Fang-Fang Dai, Ya-Song Geng, Guo-Zhen Li, Hao-Yang Dai, Zhi-Wei Yang, Shu-Song Wang, Jing Ma, Lingyin Kong

  • June 1, 2026

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