Evidence map›Paper›PMID 29869107›Full record

ArticleAdvances in therapy2018

Luteal Phase Ovarian Stimulation May Improve Oocyte Retrieval and Oocyte Quality in Poor Ovarian Responders Undergoing In Vitro Fertilization: Preliminary Results from a Single-Center Prospective Pilot Study.

Li-Te Lin, Salvatore Giovanni Vitale, San-Nung Chen, Zhi-Hong Wen, Hsiao-Wen Tsai, Chyi-Uei Chern, Kuan-Hao Tsui

2 registry-linked trialsAbstract readComparative Study
PubMed Publisher
In one paragraph

Article in Advances in therapy, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 24 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 4 pooled it
4.6field-weighted citation impact, top 5% 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.

NCT03238833 nacompletednot on this map

Department of Obstetrics and Gynecology, Kaohsiung Veterans General Hospital

TypeinterventionalSponsorKaohsiung Veterans General Hospital.Ran2017 to 2019Enrolled96ConditionsFertilization in VitroArmsluteal ovarian stimulation, follicular ovarian stimulation
NCT04447872 naunknown statusnot on this mapstarted 2020, after this paper: background citation

Prospective, Randomized Trial Comparing Luteal Phase Ovarian Stimulation, and Luteal Estradiol Priming Protocol for Patients With Diminished Ovarian Reserve - The LUTEAL Trial

TypeinterventionalSponsorNorthwell HealthRan2020 to 2025Enrolled142ConditionsInfertility, Diminished Ovarian Reserve, IVFArmsTiming of injectable gonadotropins
3 · Its place in the literature

Who cites it

24 citing papers in PubMed, 4 syntheses or guidelines pooled it, 35 citations in OpenAlex.

  1. Luteal phase stimulation versus follicular phase stimulation in poor ovarian responders: A systematic review and a meta-analysis.International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics · 2026
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  20. RescueInternational journal of fertility & sterility · 2020
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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 4 institutions in 2 countries.

Li-Te LinDepartment of Obstetrics and Gynecology, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan.
Salvatore Giovanni VitaleDepartment of General Surgery and Medical Surgical Specialties, University of Catania, Catania, Italy. vitalesalvatore@hotmail.com.ORCID http://orcid.org/0000-0001-6871-6097
San-Nung ChenDepartment of Obstetrics and Gynecology, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan.
Zhi-Hong WenDepartment of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung, Taiwan.
Hsiao-Wen TsaiDepartment of Obstetrics and Gynecology, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan.
Chyi-Uei ChernDepartment of Obstetrics and Gynecology, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan.
Kuan-Hao TsuiDepartment of Obstetrics and Gynecology, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan. khtsui60@gmail.com.
National Yang Ming Chiao Tung University · TWKaohsiung Veterans General Hospital · TWNational Sun Yat-sen University · TWUniversity of Messina · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionLuteal phase ovarian stimulation (LPOS) has been proven a feasible protocol for infertile patients. High progesterone level in the luteal phase could physiologically inhibit premature luteinizing hormone surge, from which poor ovarian responders (PORs) could obtain benefits. Therefore, we aimed to compare clinical outcomes between LPOS and follicular phase ovarian stimulation (FPOS) protocol in PORs undergoing in vitro fertilization (IVF).

methodsThis prospective pilot study was performed at one tertiary center from January 2016 to October 2017. A total of 60 PORs who met Bologna criteria and undergoing IVF were enrolled. Thirty PORs were allocated to the LPOS group and 30 PORs were allocated to the FPOS group. Basic characteristics, cycle characteristics, and pregnancy outcomes were compared between the two groups.

resultsThe length of stimulation was significantly longer in the LPOS group than in the FPOS group. The numbers of retrieved oocytes, metaphase II oocytes, fertilized oocytes, and day-3 embryos were significantly higher in the LPOS group than in the FPOS group. Conversely, we could not find any significant difference for clinical pregnancy rate, ongoing pregnancy rate, abortion rate, and cancellation rate. The multivariate analysis showed that only LPOS (p = 0.007) was significantly associated the possibility to retrieve three or more oocytes, whereas basal follicle-stimulating hormone (FSH) < 8 IU/l (p = 0.103) and antral follicle count (AFC) ≥ 3 (p = 0.143) did not significantly affect this event.

conclusionLPOS allows improved oocyte retrieval and oocyte quality in PORs with respect to FPOS, despite comparable pregnancy outcomes. LPOS may be considered a feasible option for oocytes accumulation in PORs.

trial registrationClinicalTrials.gov identifier, NCT03238833.

Indexed as

Infertility, FemalePregnancy RateAdultFemaleFertilization in VitroFollicle Stimulating HormoneHumansLuteal PhaseOocyte RetrievalOvulation InductionPilot ProjectsPregnancyProspective StudiesYoung AdultFollicle Stimulating HormoneAntagonist protocolFollicular phase ovarian stimulationGynecologyLuteal phase ovarian stimulationObstetricsOvarian reservePoor ovarian responders

Identifiers

PMID29869107
OpenAlexW2806190416

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.