scholarly journals GnRH agonist and hCG (dual trigger) versus hCG trigger for follicular maturation: a systematic review and meta-analysis of randomized trials

2021 ◽  
Vol 19 (1) ◽  
Author(s):  
Kai-Lun Hu ◽  
Siwen Wang ◽  
Xiaohang Ye ◽  
Dan Zhang ◽  
Sarah Hunt
Keyword(s):  
Systematic Review ◽  
Pregnancy Rate ◽  
Live Birth ◽  
Gnrh Agonist ◽  
Birth Rate ◽  
Randomized Trials ◽  
Meta Analysis ◽  
Live Birth Rate ◽  
Follicular Maturation ◽  
Hcg Trigger

Abstract Background Traditionally, final follicular maturation is triggered by a single bolus of human chorionic gonadotropin (hCG). This acts as a surrogate to the naturally occurring luteinizing hormone (LH) surge to induce luteinization of the granulosa cells, resumption of meiosis and final oocyte maturation. More recently, a bolus of gonadotropin-releasing hormone (GnRH) agonist in combination with hCG (dual trigger) has been suggested as an alternative regimen to achieve final follicular maturation. Methods This study was a systematic review and meta-analysis of randomized trials evaluating the effect of dual trigger versus hCG trigger for follicular maturation on pregnancy outcomes in women undergoing in vitro fertilization (IVF). The primary outcome was the live birth rate (LBR) per started cycle. Results A total of 1048 participants were included in the analysis, with 519 in the dual trigger group and 529 in the hCG trigger group. Dual trigger treatment was associated with a significantly higher LBR per started cycle compared with the hCG trigger treatment (risk ratio (RR) = 1.37 [1.07, 1.76], I2 = 0%, moderate evidence). There was a trend towards an increase in both ongoing pregnancy rate (RR = 1.34 [0.96, 1.89], I2 = 0%, low evidence) and implantation rate (RR = 1.31 [0.90, 1.91], I2 = 76%, low evidence) with dual trigger treatment compared with hCG trigger treatment. Dual trigger treatment was associated with a significant increase in clinical pregnancy rate (RR = 1.29 [1.10, 1.52], I2 = 13%, low evidence), number of oocytes collected (mean difference (MD) = 1.52 [0.59, 2.46), I2 = 53%, low evidence), number of mature oocytes collected (MD = 1.01 [0.43, 1.58], I2 = 18%, low evidence), number of fertilized oocytes (MD = 0.73 [0.16, 1.30], I2 = 7%, low evidence) and significantly more usable embryos (MD = 0.90 [0.42, 1.38], I2 = 0%, low evidence). Conclusion Dual trigger treatment with GnRH agonist and HCG is associated with an increased live birth rate compared with conventional hCG trigger. Trial registration CRD42020204452.

scholarly journals The Developmental Stage at Cryopreservation in Assisted Reproduction: A Systematic Review and Meta-Analysis of Pregnancy Outcomes

2021 ◽  
Vol 6 (1) ◽  
Keyword(s):  
Systematic Review ◽  
Pregnancy Rate ◽  
Embryo Transfer ◽  
Live Birth ◽  
Pregnancy Outcomes ◽  
Birth Rate ◽  
Developmental Stages ◽  
Meta Analysis ◽  
Live Birth Rate ◽  
Frozen Embryo Transfer

To date, there is no consensus in embryo developmental stages for cryopreservation. The present study aimed to investigate the impact of embryo developmental stages at cryopreservation on pregnancy outcomes of frozen embryo transfer. Systematic review and meta-analysis of relevant studies identified through MEDLINE literature search was performed. The primary outcome was live birth/delivery rate, and the secondary outcomes included implantation rate, ongoing pregnancy rate, clinical pregnancy rate, miscarriage rate, and multiple pregnancy rate. The protocol of this systematic review has been registered on PROSPERO 2017 (registration number: CRD42017072828). Five studies met the eligibility criteria were included in the present review. The outcomes of embryos frozen at different stages but transferred at the same stage were analyzed and compared. Embryos frozen at non-blastocyst showed a significant higher delivery/live birth rate than those cryopreserved at blastocyst (odds ratio=1.37; 95% confidence interval, 1.13-1.66) in the setting of frozen embryo transfer with blastocysts. There was only a limited number of studies with analyzable data for comparisons. The literature varied substantially in study design and methodology applied. Although a significant difference was observed toward an improved delivery/live birth rate for blastocyst transfer with embryos frozen at non-blastocyst stage, future studies are required to further corroborate this finding.

scholarly journals Glucocorticoids Improves Pregnancy Rate and Outcome in Woman With Unexplained Positive Autoantibody: a Systematic Review and Meta-analysis

2021 ◽  
Author(s):  
Ting Li ◽  
Yilin Yuan ◽  
Huixin Liu ◽  
Qun Lu ◽  
Rong Mu
Keyword(s):  
Systematic Review ◽  
Pregnancy Rate ◽  
Pregnancy Outcome ◽  
Live Birth ◽  
Birth Rate ◽  
Meta Analysis ◽  
Live Birth Rate ◽  
Clinical Pregnancy ◽  
Clinical Pregnancy Rate ◽  
Cochrane Central Register

Abstract Background: The effect of glucocorticoids (GCs) therapy for women with unexplained positive autoantibody is under debate. This systematic review and meta-analysis was performed to evaluate whether GCs administration can improve the pregnancy outcome of this population.Methods: A meta-analysis based on a systematic review of PubMed, Embase, EBSCO, and the Cochrane Central Register of Controlled Trials, until January 2021, was used to evaluate pregnancy outcome of GCs treatment for women with unexplained recurrent fetal loss or infertility whose autoantibody positive, but does not meet any classification criteria for autoimmune diseases.Results: We found GCs treatment improved clinical pregnancy rate (RR 2.19, 95% CI 1.64 to 2.92) and live birth rate (RR 1.92, 95% CI 1.17 to 3.16), especially when started GCs administration before pregnancy (clinical pregnancy rate: RR 2.30, 95% CI 1.58 to 3.34; live birth rate: RR 2.30, 95% CI 1.58 to 3.34). However, no effect of GCs on miscarriage rate was found (RR 0.75, 95% CI 0.55 to 1.02) regardless of time of drug administration.Conclusions: Our systematic review and meta-analysis surports the rational use of GCs in women with unexplained positive autoantibody.

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