Evidence map›Paper›PMID 28523563›Full record

ArticleIntensive care medicine experimental2017

Assessment of endothelial cell function and physiological microcirculatory reserve by video microscopy using a topical acetylcholine and nitroglycerin challenge.

Matthias Peter Hilty, Jacqueline Pichler, Bulent Ergin, Urs Hefti, Tobias Michael Merz, Can Ince, Marco Maggiorini

Registry-linked trialOpen access · goldAbstract read
In one paragraph

Article in Intensive care medicine experimental, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03651635 (To Assess and Validate the Use of MR-proADM and the CT-proET-1/MR-proADM Ratio as Prognostic Markers During the First 7 Days of ICU Treat-ment), which is not on this map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
3.0field-weighted citation impact, top 9% 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.

NCT03651635 completednot on this mapstarted 2018, after this paper: background citation

To Assess and Validate the Use of MR-proADM and the CT-proET-1/MR-proADM Ratio as Prognostic Markers During the First 7 Days of ICU Treat-ment

TypeobservationalSponsorUniversity of ZurichRan2018 to 2019Enrolled533ConditionsAcute Phase Biomarkers, Medical ICU Admitted PatientsArmsBlood sampling for MR-proADM & CT-proET-1
3 · Its place in the literature

Who cites it

16 citing papers in PubMed, 33 citations in OpenAlex.

  1. Trial
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  12. Physiology and technology for the ICU in vivo.Critical care (London, England) · 2019
    Review
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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

7 authors at 4 institutions in 2 countries.

Matthias Peter HiltyMedical Intensive Care Unit, University Hospital of Zurich, Rämistrasse 100, 8091, Zurich, Switzerland. matthias.hilty@usz.ch.
Jacqueline PichlerDepartment of Pulmonary Medicine, Inselspital, Bern University Hospital, Bern, Switzerland.
Bulent ErginDepartment of Translational Physiology, Academic Medical Center, Amsterdam, The Netherlands.
Urs HeftiSwiss Sportclinic, Bern, Switzerland.
Tobias Michael MerzDepartment of Intensive Care Medicine, Inselspital, Bern University Hospital, Bern, Switzerland.
Can InceDepartment of Translational Physiology, Academic Medical Center, Amsterdam, The Netherlands.
Marco MaggioriniMedical Intensive Care Unit, University Hospital of Zurich, Rämistrasse 100, 8091, Zurich, Switzerland.
Academic Medical Center · NLUniversity Hospital of Bern · CHUniversity Hospital of Zurich · CHSwiss Cancer League · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAssessment of the microcirculation is a promising target for the hemodynamic management of critically ill patients. However, just as the sole reliance on macrocirculatory parameters, single static parameters of the microcirculation may not represent a sufficient guide. Our hypothesis was that by serial topical application of acetylcholine (ACH) and nitroglycerin (NG), the sublingual microcirculation can be challenged to determine its endothelial cell-dependent and smooth muscle-dependent physiological reserve capacity.

methodsIn 41 healthy subjects, sublingual capillary microscopy was performed before and after topical application of ACH and NG. Total vessel density (TVD) was assessed in parallel using manual computer-assisted image analysis as well as a fully automated analysis pathway utilizing a newly developed computer algorithm. Flow velocity was assessed using space-time diagrams of the venules as well as the algorithm-based calculation of an average perfused speed indicator (APSI).

resultsNo change in all measured parameters was detected after sublingual topical application of ACH. Sublingual topical application of NG however led to an increase in TVD, space-time diagram-derived venular flow velocity and APSI. No difference was detected in heart rate, blood pressure, and cardiac output as measured by echocardiography, as well as in plasma nitric oxide metabolite content before and after the topical application of ACH and NG.

conclusionsIn healthy subjects, the sublingual microcirculatory physiological reserve can be assessed non-invasively by topical application of nitroglycerin without affecting systemic circulation.

Indexed as

Endothelial cell functionHemodynamic monitoringIncident dark fieldMicrocirculationVasodilatorVideo microscopy

Identifiers

PMID28523563
PMCPMC5436993
OpenAlexW2615031705

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.