STRATEGY FOR EMBRYO-TRANSFER

Embryo transfer is one of the key points of human IVF. Success or fail ure, as well as further incidence of multiple pregnancies are the imme diate consequence of this technical point The IVF transferus has also to manage with the patient anxiety The technical points of embryo tran sfer are reviewed. Results of the national french registry concerning transfers of 2 or 3 embryons are also analysed. Then, an experience co ncerning delayed embryo transfer at the blastocyst stage is reported, taking in to account the high PR obtained after transfer of frozen tha wed blastocysts.