A fresh(er) perspective on frozen embryo transfers
Volume 106, Issue 2, Pages 257-259
Nigel Pereira, M.D., Zev Rosenwaks, M.D.
In the past decade, we have witnessed a rapid rise in the number of frozen-thawed embryo transfers (FET). Nationally, it has been estimated that the number of FET cycles has increased by 82.5% between 2006 and 2012, while the number of fresh ET cycles has increased by only 3.1% during the same time interval (1). These trends are intriguing given that embryo cryopreservation was traditionally used to cryopreserve supernumerary good-quality embryos or for reducing the incidence of ovarian hyperstimulation syndrome (OHSS) in patients at risk.