Evidence map›Paper›PMID 35119550›Full record

ArticleJournal of assisted reproduction and genetics2022

Preimplantation genetic testing for aneuploidy (PGT-A)-a single-center experience.

Jiny Nair, Sachin Shetty, Cynthia Irene Kasi, Nirmala Thondehalmath, Deepanjali Ganesh, Vidyalakshmi R Bhat, Sajana Mannadia, Anjana Ranganath, Rajsekhar Nayak, Devika Gunasheela and 1 more

Open access · greenAbstract read
In one paragraph

Article in Journal of assisted reproduction and genetics, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
5.7field-weighted citation impact, top 4% 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

16 citing papers in PubMed, 1 synthesis or guideline pooled it, 16 citations in OpenAlex.

  1. Pooled it
  2. Optimisation of Laser-Assisted Biopsy Parameters in Bovine Embryos.Reproduction in domestic animals = Zuchthygiene · 2026
    Article
  3. Factors associated withFrontiers in endocrinology · 2026
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  8. Incidence of aneuploidy in embryos studied using PGT-A in Mexico: a clinical retrospective experience.Revista brasileira de ginecologia e obstetricia : revista da Federacao Brasileira das Sociedades de Ginecologia e Obstetricia · 2025
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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

11 authors at 2 institutions in 1 country.

Jiny NairTattvagene Pvt. Ltd., #365, Sulochana Building, 1st Cross, 3rd Block Koramangala, Sarjapura Main Road, Bangalore, 560034, India.ORCID http://orcid.org/0000-0001-6745-5673
Sachin ShettyTattvagene Pvt. Ltd., #365, Sulochana Building, 1st Cross, 3rd Block Koramangala, Sarjapura Main Road, Bangalore, 560034, India.ORCID http://orcid.org/0000-0003-1709-1028
Cynthia Irene KasiTattvagene Pvt. Ltd., #365, Sulochana Building, 1st Cross, 3rd Block Koramangala, Sarjapura Main Road, Bangalore, 560034, India.
Nirmala ThondehalmathGunasheela Surgical and Maternity Hospital, #1, Dewan N. Madhava Rao Road, Basavanagudi, Bangalore, 560004, India.
Deepanjali GaneshGunasheela Surgical and Maternity Hospital, #1, Dewan N. Madhava Rao Road, Basavanagudi, Bangalore, 560004, India.
Vidyalakshmi R BhatGunasheela Surgical and Maternity Hospital, #1, Dewan N. Madhava Rao Road, Basavanagudi, Bangalore, 560004, India.
Sajana MannadiaGunasheela Surgical and Maternity Hospital, #1, Dewan N. Madhava Rao Road, Basavanagudi, Bangalore, 560004, India.
Anjana RanganathGunasheela Surgical and Maternity Hospital, #1, Dewan N. Madhava Rao Road, Basavanagudi, Bangalore, 560004, India.
Rajsekhar NayakTattvagene Pvt. Ltd., #365, Sulochana Building, 1st Cross, 3rd Block Koramangala, Sarjapura Main Road, Bangalore, 560034, India.
Devika GunasheelaTattvagene Pvt. Ltd., #365, Sulochana Building, 1st Cross, 3rd Block Koramangala, Sarjapura Main Road, Bangalore, 560034, India.
Swathi ShettyTattvagene Pvt. Ltd., #365, Sulochana Building, 1st Cross, 3rd Block Koramangala, Sarjapura Main Road, Bangalore, 560034, India. swathi@chg.res.in.ORCID http://orcid.org/0000-0002-8454-7251
Yashoda Hospital · INCentre For Human Genetics · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe aim of this study was to determine the prevalence and nature of human embryonic aneuploidy based on the preimplantation genetic testing for aneuploidy (PGT-A), the distribution of aneuploidy across the individual chromosomes, and their relationship to maternal age.

methodsThis is a retrospective cohort study conducted at a single center. The study includes subjects who opted for PGT-A in their in vitro fertilization (IVF) cycle from 2016 to 2020. PGT-A was performed on 1501 embryos from 488 patients in 535 cycles. PGT-A was performed using NGS-based technique on Ion Torrent PGM (Life Technologies). Analysis was performed to determine the (i) frequency of the aneuploidy, (ii) the chromosome most commonly affected, (iii) relationship between maternal age and the rate of aneuploidy, and (iv) incidence of segmental aneuploidy.

resultsThe overall frequency of aneuploidy was observed to be 46.8%. The incidence of aneuploidy rate was ~ 28% at maternal age < 30 years which steadily increased to ~ 67% in women above 40 years. High frequency of aneuploidy was observed in chromosomes 16, 22, 21, and 15. Segmental abnormalities, involving loss or gain of chromosomal fragments, were observed at a frequency of 5.3%, and highest incidence of segmental gain was observed on the q-arm of chromosome 9.

conclusionThe study provides important information regarding the frequency of the aneuploidy in IVF cohort and the most frequent chromosomal abnormality. The study further emphasizes the relationship between maternal age and aneuploidy. This study has important implications which help clinicians and genetic counselors in providing information in patient counseling.

Indexed as

Chromosome DisordersPreimplantation DiagnosisAdultAneuploidyBlastocystFemaleFertilization in VitroGenetic TestingHumansPregnancyRetrospective StudiesEmbryoIn vitro fertilizationNext-generation sequencingPreimplantation genetic testing for aneuploidyRetrospective study

Identifiers

PMID35119550
PMCPMC8995221
OpenAlexW4210374109

What OpenQuestion holds

Textmetadata
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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.