Evidence map›Paper›PMID 18214440›Full record

ArticleIntensive care medicine2008

Endotoxemic pulmonary hypertension is largely mediated by endothelin-induced venous constriction.

Patrik Rossi, Björn Persson, Piet J M Boels, Anders Arner, Eddie Weitzberg, Anders Oldner

Abstract readEvaluation Study
PubMed Publisher
In one paragraph

Article in Intensive care medicine, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
2.5field-weighted citation impact, top 11% 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

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 24 citations in OpenAlex.

  1. Pooled it
  2. Trial
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  4. Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Pathophysiology of pulmonary hypertension in acute lung injury.American journal of physiology. Lung cellular and molecular physiology · 2012
    Review
  11. 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

6 authors at 1 institution in 1 country.

Patrik RossiSection of Anesthesiology and Intensive Care Medicine, Department of Physiology and Pharmacology, Karolinska Institutet Solna, 17176 Stockholm, Sweden. patrik.rossi@ki.se
Björn Persson
Piet J M Boels
Anders Arner
Eddie Weitzberg
Anders Oldner
Karolinska Institutet · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo analyze the effect of endothelin-1 on pulmonary arterial and venous contractile force in vitro and on up- and downstream pulmonary vascular resistance in vivo under sham and endotoxemic conditions in pigs. MATERIALS AND

methodsIn vitro: paired preparations of pulmonary arteries and veins were mounted in a myograph (n=13) for measurements of contractile responses to increasing concentrations of phenylephrine, endothelin-1, and sarafotoxin (endothelin receptor type B agonist). In vivo: 20 pigs were anesthetized, mechanically ventilated, and subjected to phenylephrine (reference substance), endothelin-1, sarafotoxin, endotoxin, and tezosentan (dual endothelin receptor antagonist). Hemodynamic and gas-exchange variables were monitored. Pulmonary capillary pressure, used for calculation of upstream and downstream vascular resistance, was assessed by the pulmonary vascular occlusion technique. MEASUREMENTS AND

resultsPulmonary veins were more sensitive than arteries to endothelin-1 both in vitro and in vivo. This difference was more pronounced with sarafotoxin, where almost no arterial effects were noted. In vivo and in vitro exposure to phenylephrine resulted in selective arterial constriction. Endotoxin infusion resulted in pulmonary hypertension with a clear downstream dominance. The latter changes including the increase in capillary pressure were totally abolished by intervention with the dual endothelin receptor antagonist tezosentan.

conclusionsThe endothelin system is extensively involved in endotoxemic pulmonary venous hypertension, an effect possibly mediated by the endothelin B receptor.

Indexed as

AnimalsCiprofloxacinEndothelin-1FemaleHypertension, PulmonaryLipopolysaccharidesLungMalePyridinesRespiratory Distress SyndromeSepsisSwineTetrazolesVascular ResistanceVasoconstrictionVasodilator AgentsCiprofloxacinEndothelin-1LipopolysaccharidesPyridinessarafloxacinTetrazolestezosentanVasodilator Agents

Identifiers

PMID18214440
OpenAlexW2093962456

What OpenQuestion holds

Textmetadata
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.