Evidence map›Paper›PMID 34349582›Full record

ArticleClinical medicine insights. Circulatory, respiratory and pulmonary medicine2021

Assessment of Ventilation and Perfusion in Patients with COVID-19 Discloses Unique Information of Pulmonary Function to a Clinician: Case Reports of V/P SPECT.

Marika Bajc, Fredrik Hedeer, Ari Lindqvist, Elin Trägårdh

Open access · goldAbstract readCase Reports
In one paragraph

Article in Clinical medicine insights. Circulatory, respiratory and pulmonary medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
0.3field-weighted citation impact, top 43% 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

0 citing papers in PubMed, 2 citations in OpenAlex.

No citing paper in PubMed yet.

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

4 authors at 3 institutions in 2 countries.

Marika BajcDepartment of Clinical Physiology and Nuclear Medicine, Skåne University Hospital Lund, 22185, Lund, Sweden.
Fredrik HedeerDepartment of Clinical Physiology and Nuclear Medicine, Skåne University Hospital Lund, 22185, Lund, Sweden.
Ari LindqvistResearch Unit of Pulmonary Diseases, Clinical Research Institute HUCH Ltd., Helsinki University Hospital HUS and Helsinki University, Helsinki, Finland.ORCID https://orcid.org/0000-0002-0062-0117
Elin TrägårdhDepartment of Clinical Physiology and Nuclear Medicine, Skåne University Hospital Malmö, Lund University, Lund, Sweden.
Skåne University Hospital · SEHelsinki University Hospital · FILund University · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

V/P SPECT from 4 consecutive patients with COVID-19 suggests that ventilation and perfusion images may be applied to diagnose or exclude pulmonary embolism, verify nonsegmental diversion of perfusion from the ventilated areas (dead space ventilation) that may represent inflammation of the pulmonary vasculature, detect the reversed mismatch of poor ventilation and better preserved perfusion (shunt perfusion) in bilateral pulmonary inflammation and indicate redistribution of lung perfusion (antigravitational hyperperfusion) due to cardiac congestion. V/P mismatch and reversed mismatch may be extensive enough to diminish dramatically preserved matching ventilation/perfusion and to induce severe hypoxemia in COVID-19.

Indexed as

COVID-19perfusionpulmonary embolismSARS-CoV-2SPECTVentilation

Identifiers

PMID34349582
PMCPMC8295940
OpenAlexW3183275714

What OpenQuestion holds

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LicenceCC BY
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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.