Evidence map›Paper›PMID 12970146›Full record

ArticleGut2003

Evidence for altered vascular responses to exogenous endothelin-1 in patients with advanced cirrhosis with restoration of the normal vasoconstrictor response following successful liver transplantation.

R B Vaughan, P W Angus, J P F Chin-Dusting

Open access · bronzeAbstract read
In one paragraph

Article in Gut, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
2.7field-weighted citation impact, top 10% 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

13 citing papers in PubMed, 39 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Hepatopulmonary syndrome: an update.Sao Paulo medical journal = Revista paulista de medicina · 2009
    Review
  5. Review
  6. Article
  7. Article
  8. Article
  9. Management of portal hypertension.Postgraduate medical journal · 2004
    Review
  10. Article
  11. Article
  12. Article
  13. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors at 2 institutions in 1 country.

R B VaughanVictorian Liver Transplant Unit, Austin and Repatriation Medical Centre, Studley Rd, Heidelberg, Melbourne, VIC 3084, Australia.
P W Angus
J P F Chin-Dusting
Heidelberg Repatriation Hospital · AUBaker Heart and Diabetes Institute · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND

aimsThere is evidence that dampened responses to endogenous vasoconstrictors contribute to the hyperdynamic circulation that is characteristic of advanced cirrhosis. The aim of this study was to determine whether there is an altered vascular responsiveness to the endothelium derived constricting factor endothelin-1 (ET-1) in patients with decompensated chronic liver disease which might contribute to this abnormal circulatory state, and whether normal endothelin responses are restored following liver transplantation.

methodsUsing forearm plethysmography, we studied the vascular response to an intra-arterial ET-1 infusion in six patients with end stage cirrhosis, before and after liver transplantation, compared with six normal control subjects. Responses to the selective endothelin A (ET(A)) receptor subtype antagonist, BQ123, were also examined.

resultsThe forearm vessels of patients with cirrhosis vasodilated in response to ET-1 infusion while in healthy controls a marked vasoconstriction response was observed (p<0.0001, area under the curve time-blood flow was normal compared with the cirrhosis groups, ANOVA). Prior to commencement of liver transplant surgery, cirrhotic patients were confirmed to have a hyperdynamic circulation with a high cardiac index (4.07 (0.23) l/min/m(2) (normal range 2.8-3.6 l/min/m(2))) and low systemic vascular resistance index (1284 (115) dynxs/cm(5)/m(2) (normal range 1760-2600 dynxs/cm(5)/m(2))). Following transplantation, normal vasoconstrictor responses to ET-1 were restored. Responses to BQ123 were not different in patients with advanced cirrhosis compared with controls.

conclusionIn patients with end stage cirrhosis, ET-1 produces vasodilatation at a dose that causes marked vasoconstriction in normal control subjects. This effect is not attributable to impairment of ET(A) receptor responses. Our findings suggest that altered endothelin responses may contribute to the generalised dilatation of the circulation that occurs in patients with advanced liver disease.

Indexed as

VasodilationAnalysis of VarianceCase-Control StudiesChronic DiseaseEndothelin-1Endothelin A Receptor AntagonistsEndothelium, VascularFemaleForearmHumansInfusions, IntravenousLiver CirrhosisLiver TransplantationMaleMiddle AgedPeptides, Cycliccyclo(Trp-Asp-Pro-Val-Leu)Endothelin-1Endothelin A Receptor AntagonistsPeptides, CyclicVasodilator Agents

Identifiers

PMID12970146
PMCPMC1773833
OpenAlexW2166022748

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.