Evidence map›Paper›PMID 33402208›Full record

ArticleJournal of ovarian research2021

A flexible short protocol in women with poor ovarian response over 40 years old.

Xinyue Zhang, Ting Feng, Jihong Yang, Yingying Hao, Suying Li, Yan Zhang, Yun Qian

Abstract read
In one paragraph

Article in Journal of ovarian research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 2 pooled it
–field-weighted citation impact
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

9 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
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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.

Xinyue ZhangReproductive Medical Center of the Second Affiliated Hospital of Nanjing Medical University, 121 Jiangjiayuan, 210011, Nanjing, China.
Ting FengReproductive Medical Center of the Second Affiliated Hospital of Nanjing Medical University, 121 Jiangjiayuan, 210011, Nanjing, China.
Jihong YangReproductive Medical Center of the Second Affiliated Hospital of Nanjing Medical University, 121 Jiangjiayuan, 210011, Nanjing, China.
Yingying HaoReproductive Medical Center of the Second Affiliated Hospital of Nanjing Medical University, 121 Jiangjiayuan, 210011, Nanjing, China.
Suying LiReproductive Medical Center of the Second Affiliated Hospital of Nanjing Medical University, 121 Jiangjiayuan, 210011, Nanjing, China.
Yan ZhangReproductive Medical Center of the Second Affiliated Hospital of Nanjing Medical University, 121 Jiangjiayuan, 210011, Nanjing, China.
Yun QianReproductive Medical Center of the Second Affiliated Hospital of Nanjing Medical University, 121 Jiangjiayuan, 210011, Nanjing, China. qianyun@njmu.edu.cn.ORCID http://orcid.org/0000-0003-4669-9737

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundOvarian responsiveness to controlled ovarian stimulation is essential for a successful clinical outcome in assisted reproductive technology (ART) cycles. We aimed to find a suitable new ovulation stimulation protocol for poor ovarian response (POR) patients over 40 years old.

methodsA retrospective analysis of 488 ART cycles was evaluated from January 2015 to June 2019. Comparisons were made between the flexible short protocol (FSP), routine short protocol and mild stimulation protocol.

resultsCompared with the routine short protocol, the FSP delayed the gonadotropin start time and reduced the total gonadotropin dose per stimulation cycle. At the same time, compared with the mild stimulation protocol, the FSP improved oocyte quality and embryo quality and improved embryo implantation potential after transfer. Furthermore, the use of the FSP reduced the probability of premature ovulation, as it inhibited the premature luteinizing hormone (LH) surge to a certain extent.

conclusionsThe FSP yielded better outcomes than other protocols for patients with POR over 40 years old in our study. However, further prospective studies are needed to provide more substantial evidence and to determine whether the FSP can be successful for both patients over 40 years group and younger POR patients.

Indexed as

FemaleHumansOvulation InductionRetrospective StudiesTime FactorsAssisted reproductive technologyflexibleovarian stimulation protocolpoor ovarian response

Identifiers

PMID33402208
PMCPMC7786950

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Registered trials

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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.