Evidence map›Paper›PMID 30213229›Full record

ArticleReproductive sciences (Thousand Oaks, Calif.)2019

The Effect of Assisted Hatching on Live Birth Rate Following Fresh Embryo Transfer in Advanced Maternal Age.

Samer Tannus, Yoni Cohen, Sara Henderson, Weon-Young Son, Togas Tulandi

Abstract read
PubMed Publisher
In one paragraph

Article in Reproductive sciences (Thousand Oaks, Calif.), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
1.1field-weighted citation impact, top 19% 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

7 citing papers in PubMed, 14 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

5 authors at 1 institution in 1 country.

Samer TannusDepartment of Obstetrics and Gynecology, Division of Reproductive Endocrinology and Infertility, McGill University Health Centre, 1001 Decarie Blvd, Montreal, Québec, Canada, H4A 3J1. sr.tannus@gmail.com.
Yoni CohenDepartment of Obstetrics and Gynecology, Division of Reproductive Endocrinology and Infertility, McGill University Health Centre, 1001 Decarie Blvd, Montreal, Québec, Canada, H4A 3J1.
Sara HendersonDepartment of Obstetrics and Gynecology, Division of Reproductive Endocrinology and Infertility, McGill University Health Centre, 1001 Decarie Blvd, Montreal, Québec, Canada, H4A 3J1.
Weon-Young SonDepartment of Obstetrics and Gynecology, Division of Reproductive Endocrinology and Infertility, McGill University Health Centre, 1001 Decarie Blvd, Montreal, Québec, Canada, H4A 3J1.
Togas TulandiDepartment of Obstetrics and Gynecology, Division of Reproductive Endocrinology and Infertility, McGill University Health Centre, 1001 Decarie Blvd, Montreal, Québec, Canada, H4A 3J1.
McGill University Health Centre · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveAssisted hatching (AH) was introduced 3 decades ago as an adjunct method to in vitro fertilization (IVF) and embryo transfer (ET) to improve embryo implantation rate. Limited data are available on the effect of AH on live birth rate (LBR) in advanced maternal age. The objective of this study is to investigate the effect of AH on LBR in women aged 40 years and older. MATERIALS AND

methodsA retrospective study conducted at a single academic reproductive center. Women aged ≥40 years, who were undergoing their first IVF cycle were included. Laser-assisted hatching was the method used for AH and single or double embryos were transferred. Embryo transfer was performed at the cleavage or blastocyst stage. Separate analysis was performed on each ET stage. Live birth rate was the primary outcome.

resultsA total of 892 patients were included. Of these, 681 women underwent cleavage ET and 211 underwent blastocyst ET. The clinical pregnancy rate in the entire group was 15.3% and the LBR was 10.2%. Baseline and cycle parameters between the AH group and the control group were comparable. Assisted hatching in the cleavage stage was associated with lower clinical pregnancy rate (odds ratio [OR], 0.52; confidence interval [CI], 0.31-0.86;

conclusionAssisted hatching does not improve the reproductive outcomes in advanced maternal age. Performing routine AH for the sole indication of advanced maternal age is not clinically justified.

Indexed as

Maternal AgePregnancy OutcomePregnancy RateReproductive Techniques, AssistedAdultBlastocystCleavage Stage, OvumEmbryo TransferFemaleFertilization in VitroHumansLaser TherapyPregnancyTreatment OutcomeZona Pellucidaadvanced maternal ageassisted hatchingblastocystcleavage embryolive birth rate

Identifiers

PMID30213229
OpenAlexW2891382188

What OpenQuestion holds

Textmetadata
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.