Evidence map›Paper›PMID 19243542›Full record

ArticleTransfusion2009

Six years' experience performing RHD genotyping to confirm D- red blood cell units in Germany for preventing anti-D immunizations.

Willy A Flegel, Inge von Zabern, Franz F Wagner

Open access · greenAbstract read
In one paragraph

Article in Transfusion, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed, 1 pooled it
2.8field-weighted citation impact, top 10% 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

47 citing papers in PubMed, 1 synthesis or guideline pooled it, 133 citations in OpenAlex.

  1. Guideline
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  13. Review
  14. RHD Genotyping of Rh-Negative and Weak D Phenotype among Blood Donors in Southeast Iran.International journal of hematology-oncology and stem cell research · 2021
    Article
  15. Proceed with care: the "uncommon" serologic weak D phenotypes.Blood transfusion = Trasfusione del sangue · 2021
    Article
  16. Article
  17. Frontiers in genetics · 2021
    Article
  18. Article
  19. Review
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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

3 authors at 1 institution in 1 country.

Willy A FlegelGerman Red Cross (DRK) Blood Donor Service Baden-Württemberg-Hessen, Institute of Clinical Transfusion Medicine and Immunogenetics Ulm, Ulm, Germany. willy.flegel@uni-ulm.de
Inge von Zabern
Franz F Wagner
German Red Cross · DE

Funding

Intramural NIH HHS Z99 CL999999
6 · The paper itself

Abstract

backgroundRed blood cell (RBC) units of D+ donors are falsely labeled D- if regular serologic typing fails to detect low D antigen expression or chimerism. The limitations of serology can be overcome by molecular typing. STUDY DESIGN AND

methodsIn January 2002, we introduced a polymerase chain reaction (PCR)-based assay for RHD as a routine test for first-time donors who typed D- by serologic methods including the indirect antiglobulin test. Samples were tested in pools of 20 for the RHD-specific polymorphism in Intron 4. RHD alleles were identified by PCR and nucleotide sequencing.

resultsWithin 6 years, 46,133 serologically D- first-time donors were screened for the RHD gene. The prevalence of RHD gene carriers detected by this method was 0.21 percent. Twenty-three RHD alleles were found of which 15 were new. Approximately one-half of the RHD gene carriers harbored alleles expressing a DEL phenotype resulting in a prevalence of 0.1 percent.

conclusionThe integration of RHD genotyping into the routine screening program was practical. We report 6 years' experience of this donor testing policy, which is not performed in most transfusion services worldwide. RBC units of donors with DEL phenotype have been reported to anti-D immunize D- recipients. We transferred those donors to the D+ donor pool with the rationale of preventing anti-D immunizations, especially dreaded in pregnancies. For each population, it will be necessary to adapt the RHD genotyping strategy to the spectrum of prevalent alleles.

Indexed as

ImmunizationAllelesBase SequenceBlood DonorsCodonDNA, ComplementaryErythrocytesExonsGenotypeGermanyHumansIsoantibodiesPhenotypeRh-Hr Blood-Group SystemRho(D) Immune GlobulinTime FactorsCodonDNA, ComplementaryIsoantibodiesRh-Hr Blood-Group SystemRHO(D) antibodyRho(D) antigenRho(D) Immune Globulin

Identifiers

PMID19243542
PMCPMC10690736
OpenAlexW2127945724

What OpenQuestion holds

Textmetadata
LicenceTDM
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.