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.

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.

Heterotopic cervical pregnancy management after a high-complexity assisted reproduction procedure.

Heterotopic cervical pregnancies with a viable intrauterine pregnancy are rare, the conservative and prudent management of these cases should be focused on the selective reduction of cervical pregnancies in order to maintain eutopic pregnancy. This paper reports the first case in Ecuador of a heterotopic cervical pregnancy after ICSI procedure and its proper management by ultrasound-guided curettage, allowing the normal development as an intrauterine pregnancy.

Triplex Real-time Polymerase Chain Reaction Optimization for AZF Y-chromosome Microdeletion Analysis.

Objective: Y chromosome microdeletions at the "Azoospermia Factor" regions (AZFa, AZFb, AZFc) are the second genetic cause of spermatogenic failure in infertile men. Despite its importance for the treatment of infertile patients, no prior investigations have been previously published in Ecuador. .