Evidence map›Paper›PMID 31054186›Full record

ArticlePhysiological reports2019

Apnea causes microvascular perfusion maldistribution in isolated rat lungs.

Robert L Conhaim, Kal E Watson, Oleg Broytman, Mihaela Teodorescu

Open access · goldAbstract read
In one paragraph

Article in Physiological reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed, 1 pooled it
0.2field-weighted citation impact, top 54% 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

3 citing papers in PubMed, 1 synthesis or guideline pooled it, 4 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
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 2 institutions in 1 country.

Robert L ConhaimThe William S. Middleton Memorial Veterans Hospital, Madison, Wisconsin.ORCID 0000-0002-4165-4225
Kal E WatsonThe William S. Middleton Memorial Veterans Hospital, Madison, Wisconsin.
Oleg BroytmanThe William S. Middleton Memorial Veterans Hospital, Madison, Wisconsin.
Mihaela TeodorescuThe William S. Middleton Memorial Veterans Hospital, Madison, Wisconsin.
University of Wisconsin–Madison · USWilliam S. Middleton Memorial Veterans Hospital · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Obstructive sleep apnea is associated with significant cardiovascular disease, yet little is known about the effects of OSA on pulmonary microvascular perfusion. In a recent report, we showed that pulmonary microvascular perfusion was significantly mal-distributed in anesthetized, spontaneously breathing rats exposed to five episodes of obstructive apnea. We quantified microvascular perfusion by analyzing trapping patterns of 4 μm diameter fluorescent latex particles infused into the pulmonary circulation after the last episode. We could not determine if the perfusion maldistribution was due to the effects of large subatmospheric intrapleural pressures during apnea, or to precapillary OSA hypoxic vasoconstriction. To address this, we repeated these studies using isolated, buffer-perfused rat lungs (P

Indexed as

AnimalsMaleMicrocirculationMicrospheresPulmonary ArteryPulmonary CirculationRats, Sprague-DawleySleep Apnea, ObstructiveVasoconstrictionBlood flowmicrospherespulmonary microcirculationpulmonary vascular biologysleep apnea

Identifiers

PMID31054186
PMCPMC6499865
OpenAlexW2942807321

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.