Evidence map›Paper›PMID 33250401›Full record

Observational studyAustralian critical care : official journal of the Confederation of Australian Critical Care Nurses2021

Mechanical ventilation and mortality among 223 critically ill patients with coronavirus disease 2019: A multicentric study in Germany.

Kevin Roedl, Dominik Jarczak, Liina Thasler, Martin Bachmann, Frank Schulte, Berthold Bein, Christian Friedrich Weber, Ulrich Schäfer, Carsten Veit, Hans-Peter Hauber and 14 more

Open access · bronzeAbstract readMulticenter StudyObservational Study
In one paragraph

Observational study in Australian critical care : official journal of the Confederation of Australian Critical Care Nurses, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 68 papers, 9 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
68citing papers in PubMed, 9 pooled it
2.5field-weighted citation impact, top 6% 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

68 citing papers in PubMed, 9 syntheses or guidelines pooled it, 118 citations in OpenAlex.

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  13. Hypercapnia outcome in COVID-19 acute respiratory distress syndrome patients on mechanical ventilator: A retrospective observational cohort.Journal of critical care medicine (Universitatea de Medicina si Farmacie din Targu-Mures) · 2025
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8 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

24 authors at 13 institutions in 1 country.

Kevin RoedlDepartment of Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany. Electronic address: k.roedl@uke.de.
Dominik JarczakDepartment of Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
Liina ThaslerDepartment of Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
Martin BachmannDepartment of Intensive Care and Respiratory Medicine, Clinic for Airway-, Thorax and Respiratory Medicine, Asklepios Hospital Harburg, Hamburg, Germany.
Frank SchulteDepartment of Pneumonology and Intensive Care Medicine, Weaningcenter, Asklepios Hospital Barmbek, Hamburg, Germany.
Berthold BeinDepartment of Anaesthesiology, Intensive Care, Emergency Medicine and Pain Medicine, Asklepios Hospital St. Georg, Hamburg, Germany.
Christian Friedrich WeberDepartment of Anaesthesiology, Intensive Care and Emergency Medicine, Asklepios Hospital Wandsbek, Hamburg, Germany.
Ulrich SchäferDepartment of Cardiology, Angiology and Intensive Care Medicine, Marien Hospital, Hamburg, Germany.
Carsten VeitDepartment of Interdisciplinary Intensive Care Medicine, Bundeswehr Hospital, Hamburg, Germany.
Hans-Peter HauberDepartment of Cardiology, Pneumology and Intensive Care Medicine, Asklepios Hospital Altona, Hamburg, Germany.
Sebastian KoppDepartement for Anaesthesiology and Intensive Care Medicine, Amalie Sieveking Hospital, Hamburg, Germany.
Karsten SydowDepartment of Cardiology, Albertinen Hospital, Hamburg, Germany.
Andreas de WeerthDepartment of Internal Medicine, Agaplesion Diakonie Hospital Hamburg, Hamburg, Germany.
Marc BotaDepartment of Internal Medicine, Bethesda Hospital Bergedorf, Hamburg, Germany.
Rüdiger SchreiberDepartment of Anaesthesiology, Intensive Care and Emergency Medicine, Asklepios West Hospital Hamburg, Hamburg, Germany.
Oliver DetschDepartment of Anaesthesiology, Intensive Care, Emergency Medicine and Pain Medicine, Asklepios Hospital Nord, Hamburg, Germany.
Jan-Peer RogmannDepartment of Anaesthesiology and Intensive Care Medicine, Israelitic Hospital, Hamburg, Germany.
Daniel FringsDepartment of Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
Barbara SensenDepartment of Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
Christoph BurdelskiDepartment of Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
Olaf BoenischDepartment of Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
Axel NierhausDepartment of Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
Geraldine de HeerDepartment of Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
Stefan KlugeDepartment of Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
Universität Hamburg · DEAlbertinen Diakoniewerk · DEAgaplesion Bethesda Krankenhaus · DEAsklepios · DEAsklepios Fachklinikum Brandenburg · DEAsklepios Klinik Altona · DEAsklepios Klinik Barmbek · DEAsklepios Kliniken Hamburg · DEAsklepios Klinik St. Georg · DEAsklepios Klinikum Harburg · DEBundeswehrkrankenhaus · DEIsraelitisches Krankenhaus · DESt. Marien Hospital · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThere are large uncertainties with regard to the outcome of patients with coronavirus disease 2019 (COVID-19) and mechanical ventilation (MV). High mortality (50-97%) was proposed by some groups, leading to considerable uncertainties with regard to outcomes of critically ill patients with COVID-19.

objectivesThe aim was to investigate the characteristics and outcomes of critically ill patients with COVID-19 requiring intensive care unit (ICU) admission and MV.

methodsA multicentre retrospective observational cohort study at 15 hospitals in Hamburg, Germany, was performed. Critically ill adult patients with COVID-19 who completed their ICU stay between February and June 2020 were included. Patient demographics, severity of illness, and ICU course were retrospectively evaluated.

resultsA total of 223 critically ill patients with COVID-19 were included. The majority, 73% (n = 163), were men; the median age was 69 (interquartile range = 58-77.5) years, with 68% (n = 151) patients having at least one chronic medical condition. Their Sequential Organ Failure Assessment score was a median of 5 (3-9) points on admission. Overall, 167 (75%) patients needed MV. Noninvasive ventilation and high-flow nasal cannula were used in 31 (14%) and 26 (12%) patients, respectively. Subsequent MV, due to noninvasive ventilation/high-flow nasal cannula therapy failure, was necessary in 46 (81%) patients. Renal replacement therapy was initiated in 33% (n = 72) of patients, and owing to severe respiratory failure, extracorporeal membrane oxygenation was necessary in 9% (n = 20) of patients. Experimental antiviral therapy was used in 9% (n = 21) of patients. Complications during the ICU stay were as follows: septic shock (40%, n = 90), heart failure (8%, n = 17), and pulmonary embolism (6%, n = 14). The length of ICU stay was a median of 13 days (5-24), and the duration of MV was 15 days (8-25). The ICU mortality was 35% (n = 78) and 44% (n = 74) among mechanically ventilated patients.

conclusionIn this multicentre observational study of 223 critically ill patients with COVID-19, the survival to ICU discharge was 65%, and it was 56% among patients requiring MV. Patients showed high rate of septic complications during their ICU stay.

Indexed as

Critical IllnessRespiration, ArtificialAgedCOVID-19FemaleGermanyHumansMaleMiddle AgedPneumonia, ViralRetrospective StudiesSARS-CoV-2ARDSCOVID-19Mechanical ventilationMortalityMultiple organ failureSARS-CoV-2

Identifiers

PMID33250401
PMCPMC7590821
OpenAlexW3096319014

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.