Evidence map›Paper›PMID 35938070›Full record

ArticleBrain communications2022

Neurofilament light increases over time in severe COVID-19 and is associated with delirium.

Patrick J Smeele, Lisa Vermunt, Siebe Blok, Jan Willem Duitman, AmsterdamUMC COVID-19 Biobank, Esther J Nossent, Michiel A van Agtmael, Leo M A Heunks, Janneke Horn, Harm Jan Bogaard and 1 more

Open access · goldAbstract read
In one paragraph

Article in Brain communications, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 2 pooled it
2.0field-weighted citation impact, top 12% 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

18 citing papers in PubMed, 2 syntheses or guidelines pooled it, 16 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Human brain matters: Navigating the neuropathology of COVID-19.Brain pathology (Zurich, Switzerland) · 2026
    Review
  4. Observational
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  12. Neurological complications in oncology and their monitoring and management in clinical practice: a narrative review.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2024
    Review
  13. Article
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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

11 authors at 1 institution in 1 country.

Patrick J SmeeleNeurochemistry Laboratory, Department of Clinical Chemistry, Amsterdam Neuroscience, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, the Netherlands.
Lisa VermuntNeurochemistry Laboratory, Department of Clinical Chemistry, Amsterdam Neuroscience, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, the Netherlands.ORCID https://orcid.org/0000-0001-7420-6384
Siebe BlokDepartment of Pulmonary Medicine, Amsterdam University Medical Centre, Amsterdam 1081 HV, the Netherlands.
Jan Willem DuitmanDepartment of Pulmonary Medicine, Amsterdam University Medical Centre, Amsterdam 1081 HV, the Netherlands.
AmsterdamUMC COVID-19 Biobank
Esther J NossentDepartment of Pulmonary Medicine, Amsterdam University Medical Centre, Amsterdam 1081 HV, the Netherlands.
Michiel A van AgtmaelDepartment of Internal Medicine, Amsterdam University Medical Centre, Amsterdam 1081 HV, the Netherlands.
Leo M A HeunksDepartment of Intensive Care Medicine, Amsterdam University Medical Centre, Amsterdam 1081 HV, the Netherlands.
Janneke HornDepartment of Intensive Care Medicine, Amsterdam University Medical Centre, Amsterdam 1081 HV, the Netherlands.
Harm Jan BogaardDepartment of Pulmonary Medicine, Amsterdam University Medical Centre, Amsterdam 1081 HV, the Netherlands.
Charlotte E TeunissenNeurochemistry Laboratory, Department of Clinical Chemistry, Amsterdam Neuroscience, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, the Netherlands.ORCID https://orcid.org/0000-0002-4061-0837
Amsterdam Neuroscience · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Neurological monitoring in sedated Intensive Care Unit patients is constrained by the lack of reliable blood-based biomarkers. Neurofilament light is a cross-disease biomarker for neuronal damage with potential clinical applicability for monitoring Intensive Care Unit patients. We studied the trajectory of neurofilament light over a month in Intensive Care Unit patients diagnosed with severe COVID-19 and explored its relation to clinical outcomes and pathophysiological predictors. Data were collected over a month in 31 Intensive Care Unit patients (166 plasma samples) diagnosed with severe COVID-19 at Amsterdam University Medical Centre, and in the first week after emergency department admission in 297 patients with COVID-19 (635 plasma samples) admitted to Massachusetts General hospital. We observed that Neurofilament light increased in a non-linear fashion in the first month of Intensive Care Unit admission and increases faster in the first week of Intensive Care Unit admission when compared with mild-moderate COVID-19 cases. We observed that baseline Neurofilament light did not predict mortality when corrected for age and renal function. Peak neurofilament light levels were associated with a longer duration of delirium after extubation in Intensive Care Unit patients. Disease severity, as measured by the sequential organ failure score, was associated to higher neurofilament light values, and tumour necrosis factor alpha levels at baseline were associated with higher levels of neurofilament light at baseline and a faster increase during admission. These data illustrate the dynamics of Neurofilament light in a critical care setting and show associations to delirium, disease severity and markers for inflammation. Our study contributes to determine the clinical utility and interpretation of neurofilament light levels in Intensive Care Unit patients.

Indexed as

COVID-19deliriumneurofilament lightSOFATNF-α

Identifiers

PMID35938070
PMCPMC9351727
OpenAlexW4288040029

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.