Evidence map›Paper›PMID 33946236›Full record

ReviewChildren (Basel, Switzerland)2021

Accuracy of Pulse Oximetry in the Presence of Fetal Hemoglobin-A Systematic Review.

Ena Pritišanac, Berndt Urlesberger, Bernhard Schwaberger, Gerhard Pichler

Open access · goldAbstract readReview
In one paragraph

Review in Children (Basel, Switzerland), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 2 pooled it
2.6field-weighted citation impact, top 9% 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

11 citing papers in PubMed, 2 syntheses or guidelines pooled it, 23 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Pulse Oximeters: Accuracy and Artifacts.Advances in experimental medicine and biology · 2026
    Review
  5. Fetal haemoglobin and oxygen requirement in preterm infants: an observational study.Archives of disease in childhood. Fetal and neonatal edition · 2025
    Observational
  6. Review
  7. Article
  8. Article
  9. Article
  10. Stabilization and Resuscitation of Newborns.Children (Basel, Switzerland) · 2022
    Article
  11. Article
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

4 authors at 1 institution in 1 country.

Ena PritišanacResearch Unit for Neonatal Micro- and Macrocirculation, Medical University of Graz, Auenbruggerplatz 34/II, 8036 Graz, Austria.
Berndt UrlesbergerResearch Unit for Neonatal Micro- and Macrocirculation, Medical University of Graz, Auenbruggerplatz 34/II, 8036 Graz, Austria.
Bernhard SchwabergerResearch Unit for Neonatal Micro- and Macrocirculation, Medical University of Graz, Auenbruggerplatz 34/II, 8036 Graz, Austria.ORCID 0000-0001-5499-3712
Gerhard PichlerResearch Unit for Neonatal Micro- and Macrocirculation, Medical University of Graz, Auenbruggerplatz 34/II, 8036 Graz, Austria.ORCID 0000-0003-2405-7143
Medical University of Graz · AT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Continuous monitoring of arterial oxygen saturation by pulse oximetry (SpO2) is the main method to guide respiratory and oxygen support in neonates during postnatal stabilization and after admission to neonatal intensive care unit. The accuracy of these devices is therefore crucial. The presence of fetal hemoglobin (HbF) in neonatal blood might affect SpO2 readings. We performed a systematic qualitative review to investigate the impact of HbF on SpO2 accuracy in neonates. PubMed/Medline, Embase, Cumulative Index to Nursing & Allied Health database (CINAHL) and Cochrane library databases were searched from inception to January 2021 for human studies in the English language, which compared arterial oxygen saturations (SaO2) from neonatal blood with SpO2 readings and included HbF measurements in their reports. Ten observational studies were included. Eight studies reported SpO2-SaO2 bias that ranged from -3.6%, standard deviation (SD) 2.3%, to +4.2% (SD 2.4). However, it remains unclear to what extent this depends on HbF. Five studies showed that an increase in HbF changes the relation of partial oxygen pressure (paO2) to SpO2, which is physiologically explained by the leftward shift in oxygen dissociation curve. It is important to be aware of this shift when treating a neonate, especially for the lower SpO2 limits in preterm neonates to avoid undetected hypoxia.

Indexed as

fetal hemoglobinneonateoxygen saturation monitoringpulse oximetry

Identifiers

PMID33946236
PMCPMC8145233
OpenAlexW3157529258

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.