Perinatal outcomes of children born after frozen-thawed embryo transfer: a Nordic cohort study from the CoNARTaS group.

  title={Perinatal outcomes of children born after frozen-thawed embryo transfer: a Nordic cohort study from the CoNARTaS group.},
  author={Ulla-Britt Wennerholm and A K Aaris Henningsen and Liv Bente Romundstad and Christina Bergh and Anja Pinborg and Rolv Skjaerven and Julie Lyng Forman and Mika Gissler and Karl G{\"o}sta Nygren and Aila Tiitinen},
  journal={Human reproduction},
  volume={28 9},
STUDY QUESTIONS What are the risks of adverse outcomes in singletons born after frozen-thawed embryo transfer (FET)? SUMMARY ANSWER Singletons born after FET have a better perinatal outcome compared with singletons born after fresh IVF and ICSI as regards low birthweight (LBW) and preterm birth (PTB), but a worse perinatal outcome compared with singletons born after spontaneous conception. WHAT IS KNOWN ALREADY Previous studies have shown a worse perinatal outcome in children born after IVF… 

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