Evidence map›Paper›PMID 25439317›Full record

ArticleCritical care (London, England)2014

Contrast-enhanced ultrasonography to evaluate changes in renal cortical microcirculation induced by noradrenaline: a pilot study.

Antoine G Schneider, Mark D Goodwin, Anthony Schelleman, Michael Bailey, Lynne Johnson, Rinaldo Bellomo

Open access · goldAbstract readEvaluation Study
In one paragraph

Article in Critical care (London, England), 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
5.6field-weighted citation impact, top 4% 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

35 citing papers in PubMed, 77 citations in OpenAlex.

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  10. Monitoring of renal perfusion.Intensive care medicine · 2022
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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 2 institutions in 1 country.

Antoine G SchneiderIntensive Care Unit, Austin Health, 145 Studley road, Heidelberg, VIC, 3084, Australia. antoine.schneider@chuv.ch.
Mark D GoodwinRadiology department, Austin Health, Heidelberg, VIC, Australia. mark.goodwin@austin.org.au.
Anthony SchellemanRadiology department, Austin Health, Heidelberg, VIC, Australia. anthony.schelleman@austin.org.au.
Michael BaileyAustralian and New Zealand Intensive Care Research Centre, School of Public Health and Preventive Medicine, Monash University, Melbourne, VIC, Australia. michael.bailey@monash.edu.
Lynne JohnsonRadiology department, Austin Health, Heidelberg, VIC, Australia. lynne.johnson@austin.org.au.
Rinaldo BellomoIntensive Care Unit, Austin Health, 145 Studley road, Heidelberg, VIC, 3084, Australia. rinaldo.bellomo@austin.org.au.
Austin Health · AUMonash University · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionWe used contrast-enhanced ultrasound (CEUS) to estimate the effect of an increase in mean arterial pressure (MAP) induced by noradrenaline infusion on renal microvascular cortical perfusion in critically ill patients.

methodsTwelve patients requiring a noradrenaline infusion to maintain a MAP more than 60 mmHg within 48 hours of intensive care unit admission were included in the study. Renal CEUS scans with destruction-replenishment sequences and Sonovue® (Bracco, Milano Italy) as a contrast agent, were performed at baseline (MAP 60 to 65 mmHg) and after a noradrenaline-induced increase in MAP to 80 to 85 mmHg.

resultsThere was no adverse effect associated with ultrasound contrast agent administration or increase in noradrenaline infusion rate. Adequate images were obtained in all patients at all study times. To reach the higher MAP target, median noradrenaline infusion rate was increased from 10 to 14 μg/min. Noradrenaline-induced increases in MAP were not associated with a significant change in overall CEUS derived mean perfusion indices (median perfusion index 3056 (interquartile range: 2438 to 6771) arbitrary units (a.u.) at baseline versus 4101 (3067 to 5981) a.u. after MAP increase, P = 0.38). At individual level, however, we observed important heterogeneity in responses (range -51% to +97% changes from baseline).

conclusionsA noradrenaline-induced increase in MAP was not associated with an overall increase in renal cortical perfusion as estimated by CEUS. However, at individual level, such response was heterogeneous and unpredictable suggesting great variability in pressure responsiveness within a cohort with a similar clinical phenotype.

Indexed as

Contrast MediaAdultAgedAged, 80 and overFemaleHumansInfusions, IntravenousKidney CortexMaleMicrocirculationMiddle AgedNorepinephrinePilot ProjectsRenal CirculationUltrasonographyContrast MediaNorepinephrine

Identifiers

PMID25439317
PMCPMC4262130
OpenAlexW2157870959

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.