Perinatal outcomes in children born after fresh or frozen embryo transfer: a Catalan cohort study based on 14,262 newborns

Perinatal outcomes are not negatively affected by vitrification, and differences between fresh and frozen embryos are only observed after controlled ovarian hyperstimulation.

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Volume 107, Issue 4, Pages 940–947


Mar Vidal, M.D., Kilian Vellvé, M.D., Mireia González-Comadran, M.D., Ana Robles, Ph.D., Maria Prat, Ph.D., Mar Torné, M.D., Ramón Carreras, Ph.D., Miguel A. Checa, Ph.D.


Perinatal outcomes are negatively affected by COH and not affected by the vitrification process.

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Fertility and Sterility

Editorial Office, American Society for Reproductive Medicine

Fertility and Sterility® is an international journal for obstetricians, gynecologists, reproductive endocrinologists, urologists, basic scientists and others who treat and investigate problems of infertility and human reproductive disorders. The journal publishes juried original scientific articles in clinical and laboratory research relevant to reproductive endocrinology, urology, andrology, physiology, immunology, genetics, contraception, and menopause. Fertility and Sterility® encourages and supports meaningful basic and clinical research, and facilitates and promotes excellence in professional education, in the field of reproductive medicine.