Open AccessCancellation of fresh embryo transfer: A future perspective
Author(s) -
Ali Ibrahim Rahim,
Paul Devroey,
K. Diedrich,
S. AlHasani
Publication year - 2010
Publication title -
middle east fertility society journal/middle east fertility society journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.322
H-Index - 18
eISSN - 2090-3251
pISSN - 1110-5690
DOI - 10.1016/j.mefs.2010.09.004
Subject(s) - controlled ovarian hyperstimulation , embryo transfer , embryo , endometrium , cryopreservation , vitrification , andrology , embryo cryopreservation , gynecology , receptivity , embryo quality , biology , medicine , in vitro fertilisation , obstetrics , endocrinology , microbiology and biotechnology
The implantation of embryo depends on the quality of the embryo and the receptivity of the endometrium. While the factors affecting embryo quality were optimized, the implantation rates did not reach the desirable levels. This directs the blaming for endometrial receptivity which already has been affected by supra-physiological levels of hormone, namely estradiol in controlled ovarian hyperstimulation (COH) cycle. On the other hand, cryopreservation, especially the vitrification method, has been highly improved to give almost the same results of fresh state, in addition to decreased rate of blastogenesis birth defects. All these encourage us to put our opinion to overcome the problem of endometrial receptivity by cancellation of the fresh embryo transfer (fresh ET) and to perform the frozen–thawed embryo transfer (FET) in cases of excessive response to COH