Evidence map›Paper›PMID 33900484›Full record

ArticleAnnals of intensive care2021

Sustained oxygenation improvement after first prone positioning is associated with liberation from mechanical ventilation and mortality in critically ill COVID-19 patients: a cohort study.

Gaetano Scaramuzzo, Lorenzo Gamberini, Tommaso Tonetti, Gianluca Zani, Irene Ottaviani, Carlo Alberto Mazzoli, Chiara Capozzi, Emanuela Giampalma, Maria Letizia Bacchi Reggiani, Elisabetta Bertellini and 24 more

Registry-linked trialOpen access · goldAbstract read
In one paragraph

Article in Annals of intensive care, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06181539 (Evaluate the Effect of Prone Ventilation on Ventilated-blood Flow Ratio in Patients With Acute Respiratory Distress Syndrome by Electrical Impedance Tomography), which is not on this map. Cited by 47 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed, 2 pooled it
10.4field-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.

NCT06181539 completednot on this mapstarted 2023, after this paper: background citation

Evaluate the Effect of Prone Ventilation on Ventilated-blood Flow Ratio in Patients With Acute Respiratory Distress Syndrome by Electrical Impedance Tomography

TypeobservationalSponsorUnion Hospital, Tongji Medical College, Huazhong University of Science and TechnologyRan2023 to 2025Enrolled94ConditionsAcute Respiratory Distress Syndrome, Electrical Impedance Tomography, Prone Position Ventilation, Ventilation Perfusion Mismatch
3 · Its place in the literature

Who cites it

47 citing papers in PubMed, 2 syntheses or guidelines pooled it, 81 citations in OpenAlex.

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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

34 authors at 17 institutions in 2 countries.

Gaetano ScaramuzzoDepartment of Translational Medicine and for Romagna, University of Ferrara & Azienda Ospedaliero-Universitaria S. Anna, Via Aldo Moro, 8 Cona, 44121, Ferrara, Italy.
Lorenzo GamberiniDepartment of Anaesthesia, Intensive Care and Prehospital Emergency, Ospedale Maggiore Carlo Alberto Pizzardi, Bologna, Italy.
Tommaso TonettiAlma Mater Studiorum, Dipartimento di Scienze Mediche e Chirurgiche, Anesthesia and Intensive Care Medicine, Policlinico di Sant'Orsola, Università di Bologna, Bologna, Italy.
Gianluca ZaniDepartment of Anesthesia and Intensive Care, Santa Maria Delle Croci Hospital, Ravenna, Italy.
Irene OttavianiDepartment of Translational Medicine and for Romagna, University of Ferrara & Azienda Ospedaliero-Universitaria S. Anna, Via Aldo Moro, 8 Cona, 44121, Ferrara, Italy.
Carlo Alberto MazzoliDepartment of Anaesthesia, Intensive Care and Prehospital Emergency, Ospedale Maggiore Carlo Alberto Pizzardi, Bologna, Italy.
Chiara CapozziCardio-Anesthesiology Unit, Cardio-Thoracic-Vascular Department, S.Orsola Hospital, University of Bologna, Bologna, Italy.
Emanuela GiampalmaRadiology Department, M. Bufalini Hospital, Cesena, Italy.
Maria Letizia Bacchi ReggianiDepartment of Clinical, Integrated and Experimental Medicine (DIMES), Statistical Service, Alma Mater University, S. Orsola-Malpighi Hospital Bologna, Bologna, Italy.
Elisabetta BertelliniDepartment of Anaesthesiology, University Hospital of Modena, Via del Pozzo 71, 41100, Modena, Italy.
Andrea CastelliCardio-Anesthesiology Unit, Cardio-Thoracic-Vascular Department, S.Orsola Hospital, University of Bologna, Bologna, Italy.
Irene CavalliAlma Mater Studiorum, Dipartimento di Scienze Mediche e Chirurgiche, Anesthesia and Intensive Care Medicine, Policlinico di Sant'Orsola, Università di Bologna, Bologna, Italy.
Davide ColomboAnaesthesia and Intensive Care Department, SS. Trinità Hospital, ASL, Novara, Italy.
Federico CrimaldiEastern Piedmont University, Novara, Italy.
Federica DamianiDepartment of Anaesthesia, Intensive Care and Pain Therapy, Imola Hospital, Imola, Italy.
Maurizio FusariDepartment of Anesthesia and Intensive Care, Santa Maria Delle Croci Hospital, Ravenna, Italy.
Emiliano GamberiniAnaesthesia and Intensive Care Unit, M. Bufalini Hospital, Cesena, Italy.
Giovanni GordiniDepartment of Anaesthesia, Intensive Care and Prehospital Emergency, Ospedale Maggiore Carlo Alberto Pizzardi, Bologna, Italy.
Cristiana LaiciAnesthesia and Intensive Care Unit of Transplant, Department of Organ Failures and Transplants, Azienda Ospedaliero-Universitaria Di Bologna (IRCCS), Bologna, Italy.
Maria Concetta LanzaDepartment of Anesthesia and Intensive Care, G.B. Morgagni-Pierantoni Hospital, Forlì, Italy.
Mirco LeoDepartment of Anaesthesia and Intensive Care, Azienda Ospedaliera SS. Antonio E Biagio E Cesare Arrigo, Alessandria, Italy.
Andrea MarudiDepartment of Anaesthesiology, University Hospital of Modena, Via del Pozzo 71, 41100, Modena, Italy.
Giuseppe NardiDepartment of Anaesthesia and Intensive Care, Infermi Hospital, Rimini, Italy.
Raffaella PapaAnaesthesia and Intensive Care Unit, Santa Maria Annunziata Hospital, Firenze, Italy.
Antonella PotalivoDepartment of Anaesthesia and Intensive Care, Infermi Hospital, Rimini, Italy.
Emanuele RussoAnaesthesia and Intensive Care Unit, M. Bufalini Hospital, Cesena, Italy.
Stefania TaddeiAnaesthesia and Intensive Care Unit, Bentivoglio Hospital, Bentivoglio, Bologna, Italy.
Guglielmo ConsalesDepartment of Critical Care Section of Anesthesiology and Intensive Care, Azienda USL Toscana Centro, Prato, Italy.
Iacopo CappelliniDepartment of Critical Care Section of Anesthesiology and Intensive Care, Azienda USL Toscana Centro, Prato, Italy.
Vito Marco RanieriAlma Mater Studiorum, Dipartimento di Scienze Mediche e Chirurgiche, Anesthesia and Intensive Care Medicine, Policlinico di Sant'Orsola, Università di Bologna, Bologna, Italy.
Carlo Alberto VoltaDepartment of Translational Medicine and for Romagna, University of Ferrara & Azienda Ospedaliero-Universitaria S. Anna, Via Aldo Moro, 8 Cona, 44121, Ferrara, Italy.
Claude GuerinMédecine Intensive-Réanimation Groupement Hospitalier Edouard Herriot, Université de Lyon Faculté de Médecine Lyon-Est, Lyon, Institut Mondor de Recherches Biomédicales, Créteil, France.
Savino SpadaroDepartment of Translational Medicine and for Romagna, University of Ferrara & Azienda Ospedaliero-Universitaria S. Anna, Via Aldo Moro, 8 Cona, 44121, Ferrara, Italy. spdsvn@unife.it.
ICU-RER COVID-19 Collaboration
University of Bologna · ITOspedale Maggiore Carlo Alberto Pizzardi · ITOspedale “M. Bufalini” di Cesena · ITArcispedale Sant'Anna · ITAzienda Usl Toscana Centro · ITOspedale Infermi di Rimini · ITOspedale "Santa Maria delle Croci" di Ravenna · ITUniversity of Ferrara · ITUniversity of Modena and Reggio Emilia · ITAzienda Ospedaliera Nazionale SS. Antonio e Biagio e Cesare Arrigo · ITAzienda USL di Bologna · ITOspedale G.B. Morgagni - L.Pierantoni · ITOspedale Santa Maria Annunziata · ITPoliclinico S.Orsola-Malpighi · ITSantissima Trinità · ITUniversità degli Studi del Piemonte Orientale “Amedeo Avogadro” · ITUniversité Claude Bernard Lyon 1 · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundProne positioning (PP) has been used to improve oxygenation in patients affected by the SARS-CoV-2 disease (COVID-19). Several mechanisms, including lung recruitment and better lung ventilation/perfusion matching, make a relevant rational for using PP. However, not all patients maintain the oxygenation improvement after returning to supine position. Nevertheless, no evidence exists that a sustained oxygenation response after PP is associated to outcome in mechanically ventilated COVID-19 patients. We analyzed data from 191 patients affected by COVID-19-related acute respiratory distress syndrome undergoing PP for clinical reasons. Clinical history, severity scores and respiratory mechanics were analyzed. Patients were classified as responders (≥ median PaO

resultsThe median PaO

conclusionsSustained oxygenation improvement after first PP session is independently associated to improved survival and reduced duration of mechanical ventilation in critically ill COVID-19 patients.

Indexed as

COVID19ICUProne positioningVentilatory free days

Identifiers

PMID33900484
PMCPMC8072095
OpenAlexW3159637928

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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.