Evidence map›Paper›PMID 33236393›Full record

ReviewMicrocirculation (New York, N.Y. : 1994)2021

Effects of impaired microvascular flow regulation on metabolism-perfusion matching and organ function.

Tuhin K Roy, Timothy W Secomb

Abstract readReview
In one paragraph

Review in Microcirculation (New York, N.Y. : 1994), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed, 2 pooled it
–field-weighted citation impact
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

32 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Glutathione S-Transferase Omega 1 Promotes Macrophage Inflammation-Associated Coagulopathy in Sepsis by S-Glutathionylating ANXA5 to Enhance Its Ubiquitination.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2026
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  13. Hypoxic adaptation theory of cancer.Frontiers in cell and developmental biology · 2026
    Article
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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

2 authors.

Tuhin K RoyDepartment of Anesthesiology & Perioperative Medicine, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA.ORCID 0000-0002-8182-7629
Timothy W SecombDepartment of Physiology, University of Arizona, Tucson, AZ, 85724, USA.ORCID 0000-0002-0176-5502

Funding

Multiscale modeling of cerebral blood flow and oxygen transportU01HL133362 · NHLBI · UNIVERSITY OF ARIZONA · PI SECOMB, TIMOTHY W. · 2017 to 2021
$2.0M
NHLBI NIH HHS U01 HL133362
6 · The paper itself

Abstract

Impaired tissue oxygen delivery is a major cause of organ damage and failure in critically ill patients, which can occur even when systemic parameters, including cardiac output and arterial hemoglobin saturation, are close to normal. This review addresses oxygen transport mechanisms at the microcirculatory scale, and how hypoxia may occur in spite of adequate convective oxygen supply. The structure of the microcirculation is intrinsically heterogeneous, with wide variations in vessel diameters and flow pathway lengths, and consequently also in blood flow rates and oxygen levels. The dynamic processes of structural adaptation and flow regulation continually adjust microvessel diameters to compensate for heterogeneity, redistributing flow according to metabolic needs to ensure adequate tissue oxygenation. A key role in flow regulation is played by conducted responses, which are generated and propagated by endothelial cells and signal upstream arterioles to dilate in response to local hypoxia. Several pathophysiological conditions can impair local flow regulation, causing hypoxia and tissue damage leading to organ failure. Therapeutic measures targeted to systemic parameters may not address or may even worsen tissue oxygenation at the microvascular level. Restoration of tissue oxygenation in critically ill patients may depend on restoration of endothelial cell function, including conducted responses.

Indexed as

Critical IllnessEndothelial CellsMicrocirculationHumansHypoxiaOxygenPerfusionOxygenconducted responsescritical illnessheterogeneitymicrovascular networksoxygen transport

Identifiers

PMID33236393
PMCPMC9119019

What Socratic holds

Textmetadata
LicenceTDM
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 Socratic graph.