Evidence map›Paper›PMID 35115007›Full record

ArticleReproductive biology and endocrinology : RB&E2022

Gonadotropin-releasing hormone agonist downregulation combined with hormone replacement therapy improves the reproductive outcome in frozen-thawed embryo transfer cycles for patients of advanced reproductive age with idiopathic recurrent implantation failure.

Dan Pan, Jie Yang, Ni Zhang, Lei Wang, Na Li, Juanzi Shi, Hanying Zhou

Open access · goldAbstract read
In one paragraph

Article in Reproductive biology and endocrinology : RB&E, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
7.0field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

20 citing papers in PubMed, 39 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 2 institutions in 1 country.

Dan PanThe Assisted Reproduction Center, Northwest Women's and Children's Hospital, No. 73 Hou zai Gate, Xin cheng District, Xi'an City, 710004, Shaanxi Province, China.
Jie YangThe Assisted Reproduction Center, Northwest Women's and Children's Hospital, No. 73 Hou zai Gate, Xin cheng District, Xi'an City, 710004, Shaanxi Province, China.
Ni ZhangDepartment of Basic Medicine, Xi'an Medical University, Xin-Wang Street #1, Xi'an, 710021, Shaanxi, China.
Lei WangThe Assisted Reproduction Center, Northwest Women's and Children's Hospital, No. 73 Hou zai Gate, Xin cheng District, Xi'an City, 710004, Shaanxi Province, China.
Na LiThe Assisted Reproduction Center, Northwest Women's and Children's Hospital, No. 73 Hou zai Gate, Xin cheng District, Xi'an City, 710004, Shaanxi Province, China.
Juanzi Shi *The Assisted Reproduction Center, Northwest Women's and Children's Hospital, No. 73 Hou zai Gate, Xin cheng District, Xi'an City, 710004, Shaanxi Province, China. shijuanzi@126.com.
Hanying Zhou *The Assisted Reproduction Center, Northwest Women's and Children's Hospital, No. 73 Hou zai Gate, Xin cheng District, Xi'an City, 710004, Shaanxi Province, China. 18709270206@139.com.
Northwest Women's and Children's Hospital · CNXi'an Medical University · CN

Funding

National Natural Science Foundation of China 82100083
6 · The paper itself

Abstract

backgroundTo determine whether gonadotropin-releasing hormone (GnRH) agonist downregulation combined with hormone replacement therapy (HRT) can improve the reproductive outcomes in frozen-thawed embryo transfer cycles for older patients (aged 36-43 years) with idiopathic recurrent implantation failure (RIF).

methodsThis retrospective cohort study involved 549 older patients undergoing their third cleavage-stage embryo or blastocyst transfer over a 5-year period (January 2015-December 2020) at Northwest Women's and Children's Hospital after in vitro fertilization/intracytoplasmic sperm injection cycles. Patients with known endometriosis or adenomyosis were excluded from the study. The patients were divided into three groups according to the endometrial preparation protocol: the natural cycle (NC) group (n = 65), the HRT group (n = 194), and the GnRH agonist downregulation combined with HRT cycle (GnRH agonist-HRT) group (n = 290). The primary outcome was the live birth rate, and the secondary outcomes were the clinical pregnancy, miscarriage, and ongoing pregnancy rates.

resultsThe live birth rate in the GnRH agonist-HRT group (36.55%) was higher than that in the HRT group (22.16%) and NC group (16.92%) (P < 0.0001). Similarly, a logistic regression model adjusting for potential confounders showed that the live birth rate was higher in the GnRH agonist-HRT group than in the HRT group (odds ratio, 0.594; 95% confidence interval, 0.381-0.926; P = 0.021) and NC group (odds ratio, 0.380; 95% confidence interval, 0.181-0.796; P = 0.010).

conclusionsThe GnRH agonist-HRT protocol improves the live birth rate in frozen-thawed embryo transfer cycles for patients of advanced reproductive age with RIF. We hypothesize that the GnRH agonist-HRT protocol enhances implantation-related factors and promotes optimal endometrial receptivity, leading to an improved live birth rate. These findings are also useful for further investigating the underlying mechanism of the GnRH agonist-HRT protocol in improving the reproductive outcomes for patients of advanced reproductive age with RIF.

trial registrationThis research protocol was approved by the hospital institutional ethics committee (No. 2021002).

Indexed as

Abortion, HabitualAdultChinaCohort StudiesCryopreservationDown-RegulationEmbryo ImplantationEmbryo, MammalianEmbryo TransferFemaleFertility Agents, FemaleGonadotropin-Releasing HormoneHormone Replacement TherapyHumansInfant, NewbornMaleFertility Agents, FemaleGonadotropin-Releasing HormoneFrozen–thawed embryo transferGonadotropin-releasing hormone agonistHormone replacement therapyRecurrent implantation failure

Identifiers

PMID35115007
PMCPMC8812179
OpenAlexW4210642699

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.