Evidence map›Paper›PMID 22153691›Full record

Trial reportBlood transfusion = Trasfusione del sangue2012

Implementing non-invasive RHD genotyping on cell-free foetal DNA from maternal plasma: the Pavia experience.

Ilaria Sbarsi, Paola Isernia, Laura Montanari, Carla Badulli, Miryam Martinetti, Laura Salvaneschi

Abstract readClinical TrialComparative Study
In one paragraph

Trial report in Blood transfusion = Trasfusione del sangue, 2012. 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
–field-weighted citation impact
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.

  1. Trial
  2. Article
  3. Non-Invasive Prenatal RHD Genotyping Using Cell-Free Fetal DNA from Maternal Plasma: An Italian Experience.Transfusion medicine and hemotherapy : offizielles Organ der Deutschen Gesellschaft fur Transfusionsmedizin und Immunhamatologie · 2015
    Article
  4. Reliable Determination of Fetal RhD Status by RHD Genotyping from Maternal Plasma.Transfusion medicine and hemotherapy : offizielles Organ der Deutschen Gesellschaft fur Transfusionsmedizin und Immunhamatologie · 2013
    Article
  5. Non-invasive foetal RHD genotyping in transfusion medicine.Blood transfusion = Trasfusione del sangue · 2012
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors.

Ilaria SbarsiService of Immunohaematology and Transfusion Medicine and Centre of Transplant Immunology, IRCCS Foundation, Policlinico San Matteo, Pavia, Italy.
Paola Isernia
Laura Montanari
Carla Badulli
Miryam Martinetti
Laura Salvaneschi

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe occurrence of cell-free foetal DNA in maternal circulation opens new possibilities in non-invasive antenatal diagnosis. Real-time polymerase chain reaction (PCR) analysis is an useful approach to foetal RhD blood group determination, thus being important in the prevention of haemolytic disease of foetus and new-born (HDFN). STUDY DESIGN AND

methodsUsing real-time PCR assays we typed 20 samples of plasma, provided in a blinded fashion, from the International Reference Laboratory, two plasma samples sent by the "2010 Workshop on Molecular Blood Group Genotyping"; seven samples from D-negative mothers at the 16th week of gestation provided by our Hospital as prospective validation cases, and two plasma samples received from the "1(st) Collaborative study establishing the sensitivity standard for non-invasive prenatal determination of foetal RHD genotype". To confirm the RHD typing of the seven prospective samples, PCR with sequence specific primers (PCR-SSP) was applied on genomic DNA from amniocytes (5 cases) and paternal peripheral blood (2 cases).

resultsThe results for the 31 investigated samples showed 100% concordance. Our measurable benefits were: confidence with a new technology, awareness of having gained the European standard level and increased self-assurance regarding the introduction of this typing technique in prenatal diagnostics. DISCUSSION: These results demonstrate the feasibility and accuracy of our validation protocol. RHD typing on cell-free foetal DNA is a procedure which requires particular care and a great degree of expertise for diagnostic use. International collaborations are essential for monitoring the performance of laboratories in the absence of specific quality control programmes.

Indexed as

AdultDNAFemaleGenotypeGenotyping TechniquesHumansMalePolymerase Chain ReactionPregnancyPregnancy Trimester, SecondPrenatal DiagnosisRh-Hr Blood-Group SystemDNARh-Hr Blood-Group System

Identifiers

PMID22153691
PMCPMC3258987

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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.