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Effects of half-dose and full-dose GnRH antagonists on IVF-ET outcomes: a retrospective study.
- Source :
- BMC Pregnancy & Childbirth; 10/27/2021, Vol. 21 Issue 1, p1-7, 7p
- Publication Year :
- 2021
-
Abstract
- <bold>Background: </bold>Gonadotropin-releasing hormone antagonist(GnRH-ant) has been shown to have a negative effect on endometrial receptivity. Therefore, the use of lower doses of GnRH-ant during controlled ovarian stimulation (COS) may improve endometrial receptivity and clinical pregnancy rate. However, the GnRH-ant dose is relatively flexible and there is no fixed requirement for guidance. In this retrospective study, we determined the effects of half-dose and full-dose GnRH-ant on IVF-ET outcomes.<bold>Methods: </bold>Of the 316 cycles in the 314 patients analyzed in this study, 149 received GnRH-ant half-dose (Group1), while 167 received GnRH-ant full-dose (Group2). The groups were further classified based on age and BMI. Age subgroups, were divided as age ≤ 35(subgroup A) and age > 35(subgroup B): 180 cycles in subgroup A (107 cycles in subgroup A1,73 cycles in subgroup A2), 136 cycles in subgroup B (42 cycles in subgroup B1,94 cycles in subgroupB2). The subgroups based on BMI were divided as BMI < 25 (subgroup C)and BMI ≥ 25 (subgroup D):208 cycles in subgroup C (94 cycles in subgroup C1,114 cycles in subgroup C2), 108 cycles in subgroup D (55 cycles in subgroup D1,53 cycles in subgroup D2).<bold>Results: </bold>The number of fertilized oocytes, superior-quality embryos, clinical pregnancy rate, and live birth rate differed significantly between the two groups. However, the number of retrieved oocytes and available embryos were significantly higher in Group 1 than Group 2 (8.17 ± 4.10 vs. 7.07 ± 4.05, 2.96 ± 2.03 vs. 2.52 ± 1.62, respectively,p<0.05). Differences between the age subgroups were not statistically significant. However, in the subgroups based on BMI, the fertilized oocytes, available embryos, the number of superior-quality embryos, and the live birth rate differed significantly between the four subgroups. The number of retrieved oocytes was higher in subgroup C1 than in subgroup C2 (8.24 ± 4.04 vs. 6.83 ± 3.92,p < 0.05), In addition, the clinical pregnancy rate was slightly higher in subgroup D1 than in subgroup D2(45.45 vs. 24.53%, P < 0.05).<bold>Conclusions: </bold>The results showed that half-dose GnRH-ant was as effective as full-dose GnRH-ant for most patients. Moreover, half-dose GnRH-ant may be more suitable in patients with BMI greater than or equal to 25. The findings of this study need to be validated in a large sample RCT.<bold>Trial Registration: </bold>Retrospectively registered. [ABSTRACT FROM AUTHOR]
- Subjects :
- LUTEINIZING hormone releasing hormone antagonists
CONTROLLED ovarian hyperstimulation
FERTILIZATION in vitro
EMBRYO transfer
BODY mass index
HORMONE antagonists
BIRTH rate
CLINICAL trials
RETROSPECTIVE studies
GONADOTROPIN releasing hormone
PREGNANCY outcomes
HUMAN reproductive technology
INDUCED ovulation
DEMOGRAPHY
CHEMICAL inhibitors
Subjects
Details
- Language :
- English
- ISSN :
- 14712393
- Volume :
- 21
- Issue :
- 1
- Database :
- Complementary Index
- Journal :
- BMC Pregnancy & Childbirth
- Publication Type :
- Academic Journal
- Accession number :
- 153239959
- Full Text :
- https://doi.org/10.1186/s12884-021-04176-8