Evidence map›Paper›PMID 33785045›Full record

ArticleBMC medical genomics2021

Performance of cell-free DNA sequencing-based non-invasive prenatal testing: experience on 36,456 singleton and multiple pregnancies.

Marco La Verde, Luigia De Falco, Annalaura Torella, Giovanni Savarese, Pasquale Savarese, Raffaella Ruggiero, Anna Conte, Vera Fico, Marco Torella, Antonio Fico

Open access · goldAbstract read
In one paragraph

Article in BMC medical genomics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed, 1 pooled it
16.4field-weighted citation impact, top 1% 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

42 citing papers in PubMed, 1 synthesis or guideline pooled it, 66 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

10 authors at 2 institutions in 1 country.

Marco La VerdeDepartment of Woman, Child and General and Specialized Surgery, Obstetrics and Gynecology Unit, University of Campania "Luigi Vanvitelli", Naples, Italy.
Luigia De FalcoAMES, Centro Polidiagnostico Strumentale, Srl, Naples, Italy. defalcol@centroames.it.ORCID 0000-0002-0553-2087
Annalaura TorellaDepartment of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy.
Giovanni SavareseAMES, Centro Polidiagnostico Strumentale, Srl, Naples, Italy.
Pasquale SavareseAMES, Centro Polidiagnostico Strumentale, Srl, Naples, Italy.
Raffaella RuggieroAMES, Centro Polidiagnostico Strumentale, Srl, Naples, Italy.
Anna ConteDepartment of Woman, Child and General and Specialized Surgery, Obstetrics and Gynecology Unit, University of Campania "Luigi Vanvitelli", Naples, Italy.
Vera FicoDepartment of Woman, Child and General and Specialized Surgery, Obstetrics and Gynecology Unit, University of Campania "Luigi Vanvitelli", Naples, Italy.
Marco TorellaDepartment of Woman, Child and General and Specialized Surgery, Obstetrics and Gynecology Unit, University of Campania "Luigi Vanvitelli", Naples, Italy.ORCID 0000-0001-8853-5760
Antonio FicoAMES, Centro Polidiagnostico Strumentale, Srl, Naples, Italy.
University of Campania "Luigi Vanvitelli" · ITCentro Diagnostico Italiano · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThis paper describes the clinical practice and performance of cell-free DNA sequencing-based non-invasive prenatal testing (NIPT) as a screening method for fetal trisomy 21, 18, and 13 (T21, T18, and T13) and sex chromosome aneuploidies (SCA) in a general Italian pregnancy population.

methodsThe AMES-accredited laboratory offers NIPT in maternal blood as a screening test for fetal T21, T18, T13 and SCA. Samples were sequenced on a NextSeq 550 (Illumina) using the VeriSeq NIPT Solution v1 assay.

resultsA retrospective analysis was performed on 36,456 consecutive maternal blood samples, including 35,650 singleton pregnancies, 800 twin pregnancies, and 6 triplet pregnancies. Samples were tested between April 2017 and September 2019. The cohort included 46% elevated-risk and 54% low-risk patients. A result indicative of a classic trisomy was found in 356 (1%) of singleton or twin samples: 254 T21, 69 T18, and 33 T13. In addition, 145 results (0.4%) were indicative of a SCA. Of the combined 501 screen-positive cases, 484 had confirmatory diagnostic testing. NIPT results were confirmed in 99.2% (247/249) of T21 cases, 91.2% (62/68) of T18 cases, 84.4% (27/32) of T13 cases, and 86.7% (117/135) of SCA cases. In the 35,955 cases reported as unaffected by a classic trisomy or SCA, no false negative cases were reported. Assuming that false negative results would be reported, the sensitivity of NIPT was 100.00% for T21 (95% Cl 98.47-100.0), T18 (95% Cl 94.17-100.0), and T13 (95% Cl 87.54-100.0). The specificities were 99.99% (95% Cl 99.98-100.0), 99.98% (95% Cl 99.96-100.0), 99.99% (95% Cl 99.97-100.0), and 99.95% (95% Cl 99.92-99.97) for T21, T18, T13, and SCA, respectively.

conclusionThis retrospective analysis of a large cohort of consecutive patients who had whole-genome sequencing-based NIPT for classic trisomies and SCA shows excellent detection rates and low false positive rates.

Indexed as

Cell-Free Nucleic AcidsNoninvasive Prenatal TestingAdultAneuploidyDown SyndromeFemaleHumansPregnancyPregnancy, MultiplePrenatal DiagnosisRetrospective StudiesSequence Analysis, DNATrisomyTrisomy 18 SyndromeCell-Free Nucleic AcidsAneuploidyCell-free DNAChromosome abnormalityDown syndromeNIPTNon-invasive prenatal testingScreeningTrisomyVeriSeq NIPT solutionWhole-genome sequencing

Identifiers

PMID33785045
PMCPMC8011149
OpenAlexW3124434451

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.