Endometrial injury and rFSH before frozen-thawed embryo transfer: a case report.

Hormonal treatment as endometrial preparation for frozen-thawed embryo transfer (FET) is routinely carried out with oral, transdermal or combined estradiol supplementation; however, in some cases, there is no optimal endometrial development with this type of stimulation. In this case report, our patient failed to respond to conventional endometrial preparation techniques. For this reason, two unconventional techniques were combined to improve endometrial receptivity; endometrial injury, followed by rFSH administration. As a result of this combination, we achieved endometrium thickness, reaching 8.9 mm on day 15 of the cycle, carrying out the embryo transfer of two blastocysts on day-17 of the cycle, achieving clinical pregnancy and carrying it to completion with the birth of a baby.

Blastocyst classification systems used in Latin America: is a consensus possible?

OBJECTIVE: To identify different blastocyst classification systems used by embryologists in Latin American countries and evaluate the possibility of establishing a consensus among these countries. METHODS: An E-mail survey was carried out through the Latin American Network of Assisted Reproduction (REDLARA) aimed at embryologists from assisted reproduction centers in Latin countries. RESULTS: Sixty surveys were collected from 12 Latin American countries, of which 66.7% had >10years of professional practice as embryologists. Seven different blastocyst classification systems were reported, of which 5 have previously been described in the literature. CONCLUSION: Although the group of embryologists surveyed use different blastocyst classification systems, most in this group consider that the embryo score system should be unified in their countries as well as in the region.