Evidence map›Paper›PMID 34553157›Full record

ArticleF&S reports2021

Dual trigger protocol is an effective in vitro fertilization strategy in both normal and high responders without compromising pregnancy outcomes in fresh cycles.

Rebecca K Chung, Abigail C Mancuso, Karen M Summers, Amy E Sparks, Hakan E Duran, Rachel B Mejia

Open access · goldAbstract read
In one paragraph

Article in F&S reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
1.2field-weighted citation impact, top 21% 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

5 citing papers in PubMed, 10 citations in OpenAlex.

  1. Trial
  2. Review
  3. The Effect of Dual Trigger onInternational journal of fertility & sterility · 2025
    Article
  4. Article
  5. Article
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

6 authors at 2 institutions in 1 country.

Rebecca K ChungDepartment of Obstetrics and Gynecology, University Hospitals Cleveland Medical Center, Cleveland, Ohio.
Abigail C MancusoDepartment of Obstetrics and Gynecology, University of Iowa Hospitals and Clinics, Iowa City, Iowa.
Karen M SummersDepartment of Obstetrics and Gynecology, University of Iowa Hospitals and Clinics, Iowa City, Iowa.
Amy E SparksDepartment of Obstetrics and Gynecology, University of Iowa Hospitals and Clinics, Iowa City, Iowa.
Hakan E DuranDepartment of Obstetrics and Gynecology, University of Iowa Hospitals and Clinics, Iowa City, Iowa.
Rachel B MejiaDepartment of Obstetrics and Gynecology, University of Iowa Hospitals and Clinics, Iowa City, Iowa.
University of Iowa Hospitals and Clinics · USUniversity Hospitals of Cleveland · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo study the birth rates of normal vs. high responders after dual trigger of final oocyte maturation with gonadotropin-releasing hormone (GnRH) agonist and human chorionic gonadotropin in fresh in vitro fertilization (IVF) cycles in which ovarian stimulation was achieved by a flexible GnRH antagonist protocol.

designRetrospective cohort study.

settingUniversity hospital. PATIENTS: In women <35 years of age, 290 fresh IVF cycles using the dual trigger protocol with day 5 embryo transfers from January 2013 to July 2018 were included. Cycles excluded were those with preimplantation genetic testing, gestational carriers, donor oocytes, and fertility preservation.

interventionsIVF with dual trigger.

main outcome measuresClinical pregnancy rate, live birth rate.

resultsComparing normal responders, defined as <30 oocytes retrieved, and high responders, defined as ≥30 oocytes retrieved, the clinical pregnancy rates (67.0% vs. 69.3%, respectively) and live birth rates (60.5% vs. 60.0%, respectively) were not significantly different. No cases of ovarian hyperstimulation syndrome were reported in either group.

conclusionsOvarian stimulation by a flexible GnRH antagonist protocol followed by dual trigger yields comparable outcomes between normal and high responders in fresh IVF cycles.

Indexed as

Dual triggerfresh embryo transferin vitro fertilizationOHSSpregnancy outcome

Identifiers

PMID34553157
PMCPMC8441566
OpenAlexW3169718764

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.