Evidence map›Paper›PMID 33058027›Full record

Observational studyAngiogenesis2021

Microvascular dysfunction in COVID-19: the MYSTIC study.

Alexandros Rovas, Irina Osiaevi, Konrad Buscher, Jan Sackarnd, Phil-Robin Tepasse, Manfred Fobker, Joachim Kühn, Stephan Braune, Ulrich Göbel, Gerold Thölking and 4 more

Open access · hybridAbstract readMulticenter StudyObservational Study
In one paragraph

Observational study in Angiogenesis, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 168 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
168citing papers in PubMed, 4 pooled it
6.0field-weighted citation impact, top 3% 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

168 citing papers in PubMed, 4 syntheses or guidelines pooled it, 301 citations in OpenAlex.

  1. Biomarkers of endothelial glycocalyx dysfunction in pregnancy: a systematic review of clinical relevance and detection techniques.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2026
    Pooled it
  2. Angiography-based coronary microvascular assessment with and without intracoronary pressure measurements: a systematic review.Clinical research in cardiology : official journal of the German Cardiac Society · 2024
    Pooled it
  3. Pooled it
  4. Pooled it
  5. Trial
  6. Trial
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  18. Long-term microvascular and blood pressure dysregulation after Preeclampsia.Hypertension research : official journal of the Japanese Society of Hypertension · 2025
    Article
  19. Article
  20. A Window into the Vascular Endothelium in Covid-19: Nails.Dermatology practical & conceptual · 2025
    Article

108 more citing papers are in PubMed but not listed here.

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

14 authors at 4 institutions in 2 countries.

Alexandros Rovas *Department of Medicine D, Division of General Internal and Emergency Medicine, Nephrology, and Rheumatology, University Hospital Münster, Albert-Schweitzer- Campus 1, 48149, Münster, Germany.
Irina Osiaevi *Department of Medicine D, Division of General Internal and Emergency Medicine, Nephrology, and Rheumatology, University Hospital Münster, Albert-Schweitzer- Campus 1, 48149, Münster, Germany.
Konrad BuscherDepartment of Medicine D, Division of General Internal and Emergency Medicine, Nephrology, and Rheumatology, University Hospital Münster, Albert-Schweitzer- Campus 1, 48149, Münster, Germany.
Jan SackarndDepartment of Cardiology and Angiology, University Hospital Münster, Albert- Schweitzer-Campus 1, 48149, Münster, Germany.
Phil-Robin TepasseDepartment of Medicine B for Gastroenterology, Hepatology, Endocrinology, Clinical Infectiology, University Hospital Münster, Albert-Schweitzer-Campus 1, 48149, Münster, Germany.
Manfred FobkerCenter for Laboratory Medicine, University Hospital Münster, Albert-Schweitzer- Campus 1, 48149, Münster, Germany.
Joachim KühnInstitute of Virology, University Hospital Münster, Albert-Schweitzer-Campus 1, 48149, Münster, Germany.
Stephan BrauneDepartmenf of medical internal intensive care and emergency medicine, St. Franziskus-Hospital GmbH, 48145, Münster, Germany.
Ulrich GöbelDepartment of Anaesthesiology and Critical Care, St. Franziskus-Hospital GmbH, 48145, Münster, Germany.
Gerold ThölkingDepartment of Medicine D, Division of General Internal and Emergency Medicine, Nephrology, and Rheumatology, University Hospital Münster, Albert-Schweitzer- Campus 1, 48149, Münster, Germany.
Andreas GröschelDepartment of Pulmonology, Clemenshospital, Münster, Germany.
Hermann PavenstädtDepartment of Medicine D, Division of General Internal and Emergency Medicine, Nephrology, and Rheumatology, University Hospital Münster, Albert-Schweitzer- Campus 1, 48149, Münster, Germany.
Hans VinkDepartment of Physiology, Cardiovascular Research Institute Maastricht, Maastricht University, Maastricht, The Netherlands.
Philipp KümpersDepartment of Medicine D, Division of General Internal and Emergency Medicine, Nephrology, and Rheumatology, University Hospital Münster, Albert-Schweitzer- Campus 1, 48149, Münster, Germany. philipp.kuempers@ukmuenster.de.ORCID http://orcid.org/0000-0001-9929-0703
University Hospital Münster · DESt. Franziskus Hospital · DEClemenshospital Münster · DEMaastricht University · NL

Funding

Deutsche Forschungsgemeinschaft KFO342Innovative Medical Research of the University of Münster Medical School RO221907
6 · The paper itself

Abstract

rationalePre-clinical and autopsy studies have fueled the hypothesis that a dysregulated vascular endothelium might play a central role in the pathogenesis of ARDS and multi-organ failure in COVID-19.

objectivesTo comprehensively characterize and quantify microvascular alterations in patients with COVID-19.

methodsHospitalized adult patients with moderate-to-severe or critical COVID-19 (n = 23) were enrolled non-consecutively in this prospective, observational, cross-sectional, multi-center study. Fifteen healthy volunteers served as controls. All participants underwent intravital microscopy by sidestream dark field imaging to quantify vascular density, red blood cell velocity (V MEASUREMENTS AND MAIN

resultsCOVID-19 patients showed an up to 90% reduction in vascular density, almost exclusively limited to small capillaries (diameter 4-6 µm), and also significant reductions of V

conclusionsOur data clearly show severe alterations of the microcirculation and the endothelial glycocalyx in patients with COVID-19. Future therapeutic approaches should consider the importance of systemic vascular involvement in COVID-19.

Indexed as

MicrocirculationAgedArea Under CurveCOVID-19Cross-Sectional StudiesEndothelium, VascularFemaleFollow-Up StudiesGlycocalyxHealthy VolunteersHumansInflammationIntravital MicroscopyKaplan-Meier EstimateMaleMiddle AgedCOVID-19Endothelial glycocalyxEndotheliopathyMicrocirculationSublingual microscopy

Identifiers

PMID33058027
PMCPMC7556767
OpenAlexW3093015530

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.