Evidence map›Paper›PMID 31649339›Full record

ArticlePediatric research2020

Mercury, lead, and cadmium exposure via red blood cell transfusions in preterm infants.

Alison J Falck, Alexandre E Medina, Justine Cummins-Oman, Dina El-Metwally, Cynthia F Bearer

Open access · bronzeAbstract readMulticenter Study
PubMed Publisher
In one paragraph

Article in Pediatric research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
0.3field-weighted citation impact, top 39% 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

13 citing papers in PubMed, 15 citations in OpenAlex.

  1. Article
  2. Observational
  3. Article
  4. [Progress in the clinical application of cord blood transfusion in neonates].Zhongguo dang dai er ke za zhi = Chinese journal of contemporary pediatrics · 2025
    Review
  5. Article
  6. Article
  7. Article
  8. Review
  9. New frontiers in neonatal red blood cell transfusion research.Journal of perinatology : official journal of the California Perinatal Association · 2023
    Review
  10. Article
  11. Article
  12. Article
  13. Observational
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

5 authors at 1 institution in 1 country.

Alison J FalckDivision of Neonatology, Department of Pediatrics, University of Maryland School of Medicine, 110 South Paca, 8th Floor, Baltimore, MD, 21201, USA. afalck@som.umaryland.edu.
Alexandre E MedinaDivision of Neonatology, Department of Pediatrics, University of Maryland School of Medicine, 110 South Paca, 8th Floor, Baltimore, MD, 21201, USA.
Justine Cummins-OmanDivision of Neonatology, Department of Pediatrics, University of Maryland School of Medicine, 110 South Paca, 8th Floor, Baltimore, MD, 21201, USA.
Dina El-MetwallyDivision of Neonatology, Department of Pediatrics, University of Maryland School of Medicine, 110 South Paca, 8th Floor, Baltimore, MD, 21201, USA.
Cynthia F BearerDivision of Neonatology, Department of Pediatrics, University of Maryland School of Medicine, 110 South Paca, 8th Floor, Baltimore, MD, 21201, USA.
University of Maryland, Baltimore · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMercury, lead, and cadmium are developmental neurotoxicants. We predict that preterm newborns requiring packed red blood cell (PRBC) transfusions may be exposed to neurotoxic doses. We explored the relationship between donor concentration, number of donors, number of transfusions and mercury, lead and cadmium exposure.

methodsSingle-donor PRBCs were analyzed for mercury, lead and cadmium concentration. Dose per transfusion was calculated and compared to intravenous reference doses (IVRfDs). Linear regression analyses were performed to correlate donor and infant exposure.

resultsThirty-six infants received 268 transfusions from 94 donors. Number of donors and transfusions were significantly correlated with birthweight and gestational age. All three metals were detected in ≥95% of donor PRBCs. Number of donors was significantly associated with cumulative dose, and there was a significant correlation between mercury and lead doses/transfusion. IVRfDs were exceeded for mercury and lead in 8.6% and 38% of transfusions, respectively. None exceeded the IVRfD for cadmium. For lead, infants exposed to three donors had more transfusions exceeding IVRfD than those exposed to 1-2 donors.

conclusionsPreterm infants are exposed to heavy metals via transfusions. Doses exceeded the IVRfDs for mercury and lead. Cadmium did not pose a risk. Prescreening donor blood could reduce exposure risk.

Indexed as

Erythrocyte TransfusionBaltimoreBirth WeightBlood DonorsCadmiumDonor SelectionFemaleGestational AgeHumansInfant, NewbornInfant, PrematureLeadMaleMercuryPremature BirthProspective StudiesCadmiumLeadMercury

Identifiers

PMID31649339
OpenAlexW2981887617

What OpenQuestion holds

Textmetadata
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.