The Impact of Pituitary Blockage with GnRH Antagonist and Gonadotrophin Stimulation Length on The Outcome of ICSI Cycles in Women Older than 36 Years.

Autor: Santana R; Fertility-Assisted Fertilization Center, Av. Brigadeiro Luis Antônio, São Paulo, SP, Brazil., Setti AS; Fertility-Assisted Fertilization Center, Av. Brigadeiro Luis Antônio, São Paulo, SP, Brazil ; Sapientiae Institute-Educational and Research Center in Assisted Reproduction, Rua Vieira Maciel, São Paulo, SP, Brazil., Maldonado LG; Fertility-Assisted Fertilization Center, Av. Brigadeiro Luis Antônio, São Paulo, SP, Brazil., Valente FM; Fertility-Assisted Fertilization Center, Av. Brigadeiro Luis Antônio, São Paulo, SP, Brazil., Iaconelli C; Fertility-Assisted Fertilization Center, Av. Brigadeiro Luis Antônio, São Paulo, SP, Brazil., Iaconelli A Jr; Fertility-Assisted Fertilization Center, Av. Brigadeiro Luis Antônio, São Paulo, SP, Brazil ; Sapientiae Institute-Educational and Research Center in Assisted Reproduction, Rua Vieira Maciel, São Paulo, SP, Brazil., Borges E Jr; Fertility-Assisted Fertilization Center, Av. Brigadeiro Luis Antônio, São Paulo, SP, Brazil ; Sapientiae Institute-Educational and Research Center in Assisted Reproduction, Rua Vieira Maciel, São Paulo, SP, Brazil.
Jazyk: angličtina
Zdroj: International journal of fertility & sterility [Int J Fertil Steril] 2014 Jul; Vol. 8 (2), pp. 135-42. Date of Electronic Publication: 2014 Jul 08.
Abstrakt: Background: The objective of this retrospective cohort study was to evaluate whether the length of pituitary blockage with gonadotrophin-releasing hormone (GnRH) antagonists or the stimulation period influence intracytoplasmic sperm injection (ICSI) outcomes in patients older than 36 years of age.
Materials and Methods: In this retrospective study, a total of 138 couples with maternal age >36 years undergoing ICSI with an antagonist protocol were included. The influences of stimulation and suppression length on the response to ovarian stimulation and ICSI outcomes were investigated. Receiver operating characteristic curve (ROC) analysis was performed to assess the predictive value of the stimulation period for achievement of implantation and pregnancy.
Results: THE GONADOTROPHIN STIMULATION LENGTH NEGATIVELY INFLUENCED THE IMPLANTATION RATE (RC: -4.200; p=0.023). The area under ROC curve (AUC) could distinguish between women with positive and negative implantation (AUC: 0.611; CI: 0.546-0.673) and pregnancy (AUC: 0.593; CI: 0.528-0.656). The threshold value demonstrated a high negative predictive value on likelihood of implantation (p=0.0032, 90% sensitivity) and pregnancy (p=0.0147, 87.1% sensitivity) when patients underwent more than 10 days of stimulation.
Conclusion: The stimulation period negatively influences the implantation rate in women older than 36 years. A stimulation interval greater than 10 days is associated with a negative predictive value for the chance of implantation and pregnancy.
Databáze: MEDLINE
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