Evidence map›Paper›PMID 33461535›Full record

ArticleRespiratory research2021

Surfactant therapy for COVID-19 related ARDS: a retrospective case-control pilot study.

Simone Piva, Robert M DiBlasi, April E Slee, Alan H Jobe, Aldo M Roccaro, Matteo Filippini, Nicola Latronico, Michele Bertoni, John C Marshall, Michael A Portman

Open access · goldAbstract read
In one paragraph

Article in Respiratory research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed
9.1field-weighted citation impact, top 1% 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

41 citing papers in PubMed, 69 citations in OpenAlex.

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  7. Moving on from clinical animal-derived surfactants to peptide-based synthetic pulmonary surfactant.American journal of physiology. Lung cellular and molecular physiology · 2024
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  12. Evolution of interfacial mechanics of lung surfactant mimics progression of acute respiratory distress syndrome.Proceedings of the National Academy of Sciences of the United States of America · 2023
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  18. Pulmonary Surfactant Proteins Are Inhibited by Immunoglobulin A Autoantibodies in Severe COVID-19.American journal of respiratory and critical care medicine · 2023
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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

10 authors at 7 institutions in 4 countries.

Simone Piva *Department of Medical and Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, Brescia, Italy. simone.piva@unibs.it.ORCID http://orcid.org/0000-0002-5483-8007
Robert M DiBlasi *Respiratory Therapy Department, Seattle Children's Hospital, Seattle, WA, USA.
April E SleeUniversity College London, London, UK.
Alan H JobePerinatal Institute Cincinatti Children's Hospital, Cincinnati, OH, USA.
Aldo M RoccaroClinical Research Development and Phase I Unit ASST Spedali Civili Di Brescia, Brescia, Italy.
Matteo FilippiniDepartment of Medical and Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, Brescia, Italy.
Nicola LatronicoDepartment of Medical and Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, Brescia, Italy.
Michele BertoniDepartment of Medical and Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, Brescia, Italy.
John C MarshallLi Ka Shing Knowledge Institute, Unity Health Toronto, University of Toronto, Toronto, ON, Canada.
Michael A PortmanCenter for Integrative Brain Research, Seattle Children's Research Institute, Seattle, WA, USA.
Azienda Socio Sanitaria Territoriale degli Spedali Civili di Brescia · ITCincinnati Children's Hospital Medical Center · USSeattle Children's Hospital · USSurgical Specialties (Canada) · CAUniversity College London · GBUniversity of Toronto · CAUniversity of Washington · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCOVID-19 causes acute respiratory distress syndrome (ARDS) and depletes the lungs of surfactant, leading to prolonged mechanical ventilation and death. The feasibility and safety of surfactant delivery in COVID-19 ARDS patients have not been established.

methodsWe performed retrospective analyses of data from patients receiving off-label use of exogenous natural surfactant during the COVID-19 pandemic. Seven COVID-19 PCR positive ARDS patients received liquid Curosurf (720 mg) in 150 ml normal saline, divided into five 30 ml aliquots) and delivered via a bronchoscope into second-generation bronchi. Patients were matched with 14 comparable subjects receiving supportive care for ARDS during the same time period. Feasibility and safety were examined as well as the duration of mechanical ventilation and mortality.

resultsPatients showed no evidence of acute decompensation following surfactant installation into minor bronchi. Cox regression showed a reduction of 28-days mortality within the surfactant group, though not significant. The surfactant did not increase the duration of ventilation, and health care providers did not convert to COVID-19 positive.

conclusionsSurfactant delivery through bronchoscopy at a dose of 720 mg in 150 ml normal saline is feasible and safe for COVID-19 ARDS patients and health care providers during the pandemic. Surfactant administration did not cause acute decompensation, may reduce mortality and mechanical ventilation duration in COVID-19 ARDS patients. This study supports the future performance of randomized clinical trials evaluating the efficacy of meticulous sub-bronchial lavage with surfactant as treatment for patients with COVID-19 ARDS.

Indexed as

COVID-19 Drug TreatmentAgedBiological ProductsBronchoscopyCOVID-19Feasibility StudiesFemaleHumansLungMaleMiddle AgedPhospholipidsPilot ProjectsPulmonary SurfactantsRespiration, ArtificialRetrospective StudiesBiological ProductsPhospholipidsporactant alfaPulmonary SurfactantsAcute respiratory distress syndromeCovid-19Surfactant replacement therapy

Identifiers

PMID33461535
PMCPMC7812332
OpenAlexW3118642755

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.