Evidence map›Paper›PMID 34481306›Full record

ArticleRespiratory medicine2021

Oxyhemoglobin concentrations do not support hemoglobinopathy in COVID-19.

Patrick Maher, Hamna Zafar, Kusum Mathews

Open access · bronzeAbstract readComment
In one paragraph

Article in Respiratory medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
0.1field-weighted citation impact, top 57% 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

1 citing paper in PubMed, 1 citations in OpenAlex.

  1. Review
4 · The record

Corrections and comments

  • Comment on
5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

Patrick MaherDepartment of Emergency Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA. Electronic address: patrick.maher@mountsinai.org.
Hamna ZafarDepartment of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
Kusum MathewsDepartment of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
Icahn School of Medicine at Mount Sinai · US

Funding

Optimizing ED to ICU triage decisions for critically ill patients in respiratory distressK23HL130648 · NHLBI · ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI · PI MATHEWS, KUSUM SARA · 2016 to 2021
$744k
NHLBI NIH HHS K23 HL130648
6 · The paper itself

Abstract

Based on computerized modeling studies, it has been postulated that the severe hypoxemia in COVID-19 may result from impaired oxygen carrying capacity on hemoglobin. Standard pulse oximetry may not detect hypoxemia resulting from hemoglobinopathy, therefore hemoglobin co-oximetry is needed to evaluate this divergence. In a clinical data analysis of a multicenter cohort of hospitalized patients with COVID-19, we found a minimal effect, less than 1%, on the correlation between oxyhemoglobin concentration and predicted oxygen saturation in the presence of COVID-19 infection. This effect is unlikely to explain the clinically significant hypoxia in COVID-19 patients.

Indexed as

COVID-19HemoglobinopathiesHumansHypoxiaOximetryOxygenOxyhemoglobinsSARS-CoV-2OxygenOxyhemoglobinsCOVID-19HemoglobinopathyHypoxiaRespiratory failure

Identifiers

PMID34481306
PMCPMC8405232
OpenAlexW3196995619

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.