Objective: To describe the cases of preimplantation genetic testing for monogenic diseases (PGT-M) in fertile couples who had undergone intracytoplasmic sperm injection (ICSI) cycles in a Brazilian fertilisation (IVF) centre and determine whether these cases were different from those reported from the European Society of Human Reproduction and Embryology (ESHRE).
Methods: This retrospective collection included data obtained from ICSI-PGT-M cycles between 2011 and 2016. The disease indication, number of biopsied embryos, biopsy stage, diagnosed and affected embryos, and cycles with embryo to transfer as well as implantation, pregnancy and miscarriage rates were analysed and compared to cycles without genetic diagnosis (PGT) and with ESHRE PGD Consortium collection XIV-XV.
Objective: To study whether embryos derived from oocytes presenting a smooth endoplasmic reticulum cluster (SERC) are less likely to develop into blastocysts and implant.
Design: Transversal study.
Setting: Private university-affiliated in vitro fertilization (IVF) center.
Objective: To compare the outcomes of ETs using cryopreserved embryos, cryopreserved oocytes, or fresh embryos.
Design: Observational, cohort study.
Setting: Private university-affiliated fertility center.
Purpose: To test the hypothesis that aged women with poor ovarian response express an increase on embryo chromosomal alterations when compared to aged women who presented normal response.
Methods: Couples undergoing intracytoplasmic sperm injection cycles with preimplantation genetic screening, were subdivided into two groups: Poor Responder group (n = 34), patients who produced ≤4 oocytes; and Normoresponder group (n = 50), patients who produced ≥5 oocytes. Groups were compared regarding cycles' outcomes and aneuploidy frequency.