Evidence map›Paper›PMID 31897814›Full record

ArticleLasers in medical science2020

Higher implantation and live birth rates with laser zona pellucida breaching than thinning in single frozen-thawed blastocyst transfer.

Chengjun Liu, Ketong Su, Wei Shang, Huili Ji, Chenfeng Yuan, Maosheng Cao, Chunjin Li, Xu Zhou

Abstract read
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In one paragraph

Article in Lasers in medical science, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
1.3field-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

9 citing papers in PubMed, 1 synthesis or guideline pooled it, 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

8 authors at 2 institutions in 1 country.

Chengjun LiuCollege of Animal Sciences, Jilin University, Changchun, China.
Ketong SuReproductive Medical Center, Zhanjiang Jiuhe Hospital, Zhanjiang, China.
Wei ShangReproductive Medical Center, The Sixth Medical Center of PLA General Hospital, Beijing, China.
Huili JiReproductive Medical Center, Zhanjiang Jiuhe Hospital, Zhanjiang, China.
Chenfeng YuanCollege of Animal Sciences, Jilin University, Changchun, China.
Maosheng CaoCollege of Animal Sciences, Jilin University, Changchun, China.
Chunjin LiCollege of Animal Sciences, Jilin University, Changchun, China. llcjj158@163.com.
Xu ZhouCollege of Animal Sciences, Jilin University, Changchun, China. xzhou65@vip.sina.com.ORCID http://orcid.org/0000-0003-2698-5357
Jilin University · CNChinese PLA General Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

While zona pellucida (ZP) breaching of day-3 frozen blastocysts embryos can increase the blastocyst hatching rate, compared with ZP thinning, the pregnancy and implantation rates are similar. The aim of this study was to compare pregnancy outcomes and the risks associated with frozen-thawed blastocysts between laser ZP breaching and laser ZP thinning. For the thinning group, ZP of thawed blastocyst was thinned to a length of 30-40 μm using laser between January 2013 and October 2015. On the other hand, for the breaching group, thawed blastocysts were breached with a 60-80 μm hole in the ZP using laser between November 2015 and April 2018. The implantation rate of ZP breaching (72.7%) was higher than that of ZP thinning (61.8%). In single frozen blastocyst transfer, the implantation rate, clinical pregnancy rate, and live birth rate of ZP breaching (73.9%, 73.9%, 61.8%, respectively) were significantly higher than those of ZP thinning (60.9%, 60.9%, 46.7%, respectively). The abortion rate, preterm birth rate, congenital malformation, birth defects, and birth weight did not significantly differ between the two groups. In conclusion, laser assisted hatching during single frozen blastocyst transfer using ZP breaching exhibit higher implantation, pregnancy, and live birth rates compared with ZP thinning. No significant differences were observed between the two assisted hatching methods in terms of adverse effects on pregnancy and newborns.

Indexed as

Birth RateEmbryo ImplantationEmbryo TransferFreezingLasersAdultFemaleFertilization in VitroHumansInfant, NewbornLightMalePregnancyPregnancy OutcomePregnancy RateRisk FactorsFrozen–thawed blastocystImplantation rateLaser assisted hatchingLive birth rateZona pellucida breachingZona pellucida thinning

Identifiers

PMID31897814
OpenAlexW2997917107

What OpenQuestion holds

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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.