Evidence map›Paper›PMID 28548651›Full record

ArticleEye (London, England)2017

Foetal haemoglobin, blood transfusion, and retinopathy of prematurity in very preterm infants: a pilot prospective cohort study.

C J Stutchfield, A Jain, D Odd, C Williams, R Markham

Registry-linked trialOpen access · bronzeAbstract readMulticenter Study
In one paragraph

Article in Eye (London, England), 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03764813 (Fetal Hemoglobin Levels and Umbilical Cord or Adult Blood RBC Transfusions in Preterm Neonates.), which is not on this map. Cited by 63 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
63citing papers in PubMed, 2 pooled it
5.1field-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.

NCT03764813 completednot on this mapstarted 2018, after this paper: background citation

Fetal Hemoglobin Levels and Umbilical Cord or Adult Blood RBC Transfusions in Preterm Neonates.

TypeobservationalSponsorFondazione Policlinico Universitario Agostino Gemelli IRCCSRan2018 to 2019Enrolled25ConditionsPremature Infant Disease, Transfusion Related Complication, Fetal Hemoglobin
3 · Its place in the literature

Who cites it

63 citing papers in PubMed, 2 syntheses or guidelines pooled it, 102 citations in OpenAlex.

  1. Pooled it
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  6. Assessment of iron sufficiency in premature infants treated with darbepoetin using conventional and novel erythrocyte metrics.Journal of perinatology : official journal of the California Perinatal Association · 2026
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  9. Observational
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  14. Involving neonatal hematology and transfusion medicine in global efforts to eliminate severe retinopathy of prematurity.Journal of perinatology : official journal of the California Perinatal Association · 2025
    Review
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3 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 4 institutions in 1 country.

C J StutchfieldNeonatal Intensive Care Unit, St Michael's Hospital, Bristol, UK.
A JainNeonatal Intensive Care Unit, St Michael's Hospital, Bristol, UK.
D OddNeonatal Intensive Care Unit, Southmead Hospital, Bristol, UK.
C WilliamsBristol Eye Hospital, University Hospitals Bristol NHS Foundation Trust, Bristol, UK.
R MarkhamBristol Eye Hospital, University Hospitals Bristol NHS Foundation Trust, Bristol, UK.
Southmead Hospital · GBBristol Eye Hospital · GBSt Michael's Hospital · GBUniversity Hospitals Bristol NHS Foundation Trust · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

PurposeTo identify if there is an association between foetal haemoglobin (HbF) concentration and retinopathy of prematurity (ROP) in very preterm infants.Patients and methodsProspective cohort study. Infants born <32 weeks' gestational age or <1501 g in two tertiary neonatal units between January 2012 and May 2013 (n=42) were enrolled. HbF and adult haemoglobin (HbA) concentrations were measured using high-pressure liquid chromatography from blood samples sent as part of routine neonatal care once routinely requested laboratory tests had been performed. Clinical data were obtained from case notes. We calculated odds ratios (ORs) (95% confidence intervals (CIs)) to quantify the relationship between initial and mean %HbF with ROP severity (none, stages 1-3).ResultsA total of 42 infants were recruited: mean gestation 28.0 weeks (SD 1.91); mean birth weight 1042 g (SD 264). Six infants died before ROP screening; 14/36 developed ROP (39%); and 22/36 (61%) did not. Infants who developed ROP had similar initial %HbF (83.3 vs 92.3%, P=0.06), but significantly lower mean %HbF (61.75 vs 91.9%, P=0.0001) during their inpatient stay than those who did not develop ROP. In ordinal logistic regression models adjusted for birth weight, gestation and transfusion volume, mean post-natal %HbF was negatively associated with ROP severity: adjusted OR 0.94 (0.90-0.99), while initial %HbF at birth was not: adjusted OR 1.05 (0.97-1.16).ConclusionReplacing HbF by HbA during transfusion may promote ROP development by rapidly increasing oxygen availability to the retina. Conversely, maintaining a higher %HbF may be a protective factor against ROP.

Indexed as

Infant, Very Low Birth WeightAnemia, NeonatalBiomarkersBirth WeightBlood TransfusionFemaleFetal HemoglobinFollow-Up StudiesGestational AgeHemoglobin AHumansInfant, NewbornMalePilot ProjectsPrognosisProspective StudiesBiomarkersFetal HemoglobinHemoglobin A

Identifiers

PMID28548651
PMCPMC5639193
OpenAlexW2619305603

What OpenQuestion holds

Textmetadata
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Registered trials

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.