Evidence map›Paper›PMID 31912438›Full record

ArticleThe ultrasound journal2020

Feasibility of cardiac output measurements in critically ill patients by medical students.

Geert Koster, Thomas Kaufmann, Bart Hiemstra, Renske Wiersema, Madelon E Vos, Devon Dijkhuizen, Adrian Wong, Thomas W L Scheeren, Yoran M Hummel, Frederik Keus and 1 more

Registry-linked trialOpen access · goldAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in The ultrasound journal, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02912624 (Combining Conventional With Advanced Hemodynamic Parameters for Predicting the Outcome of Critically Ill Patients), which is not on this map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
2.0field-weighted citation impact, top 14% 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.

NCT02912624 completednot on this map

Combining Conventional With Advanced Hemodynamic Parameters for Predicting the Outcome of Critically Ill Patients: a Pilot for a Registry

Typeobservational_patient_registrySponsorUniversity Medical Center GroningenRan2015 to 2017Enrolled1,090ConditionsCritical Illness, Acute Disease, Shock
3 · Its place in the literature

Who cites it

6 citing papers in PubMed, 18 citations in OpenAlex.

  1. Observational
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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

11 authors at 2 institutions in 2 countries.

Geert KosterDepartment of Critical Care, University of Groningen, University Medical Center Groningen, P.O. Box 30.001, 9700 RB, Groningen, The Netherlands. g.koster@umcg.nl.ORCID http://orcid.org/0000-0002-8927-3077
Thomas KaufmannDepartment of Anaesthesiology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
Bart HiemstraDepartment of Critical Care, University of Groningen, University Medical Center Groningen, P.O. Box 30.001, 9700 RB, Groningen, The Netherlands.
Renske WiersemaDepartment of Critical Care, University of Groningen, University Medical Center Groningen, P.O. Box 30.001, 9700 RB, Groningen, The Netherlands.
Madelon E VosDepartment of Critical Care, University of Groningen, University Medical Center Groningen, P.O. Box 30.001, 9700 RB, Groningen, The Netherlands.
Devon DijkhuizenDepartment of Critical Care, University of Groningen, University Medical Center Groningen, P.O. Box 30.001, 9700 RB, Groningen, The Netherlands.
Adrian WongDepartment of Anaesthesia and Intensive Care, Royal Surrey Hospital, Guildford, UK.
Thomas W L ScheerenDepartment of Anaesthesiology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
Yoran M HummelDepartment of Cardiology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
Frederik KeusDepartment of Critical Care, University of Groningen, University Medical Center Groningen, P.O. Box 30.001, 9700 RB, Groningen, The Netherlands.
Iwan C C van der HorstDepartment of Critical Care, University of Groningen, University Medical Center Groningen, P.O. Box 30.001, 9700 RB, Groningen, The Netherlands.
University Medical Center Groningen · NLRoyal Surrey County Hospital · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCritical care ultrasonography (CCUS) is increasingly applied also in the intensive care unit (ICU) and performed by non-experts, including even medical students. There is limited data on the training efforts necessary for novices to attain images of sufficient quality. There is no data on medical students performing CCUS for the measurement of cardiac output (CO), a hemodynamic variable of importance for daily critical care.

objectiveThe aim of this study was to explore the agreement of cardiac output measurements as well as the quality of images obtained by medical students in critically ill patients compared to the measurements obtained by experts in these images.

methodsIn a prospective observational cohort study, all acutely admitted adults with an expected ICU stay over 24 h were included. CCUS was performed by students within 24 h of admission. CCUS included the images required to measure the CO, i.e., the left ventricular outflow tract (LVOT) diameter and the velocity time integral (VTI) in the LVOT. Echocardiography experts were involved in the evaluation of the quality of images obtained and the quality of the CO measurements.

resultsThere was an opportunity for a CCUS attempt in 1155 of the 1212 eligible patients (95%) and in 1075 of the 1212 patients (89%) CCUS examination was performed by medical students. In 871 out of 1075 patients (81%) medical students measured CO. Experts measured CO in 783 patients (73%). In 760 patients (71%) CO was measured by both which allowed for comparison; bias of CO was 0.0 L min

conclusionsMedical students seem capable of obtaining sufficient quality CCUS images for CO measurement in the majority of critically ill patients. Measurements of CO by medical students, however, had poor agreement with expert measurements. Experts remain indispensable for reliable CO measurements. Trial registration Clinicaltrials.gov; http://www.clinicaltrials.gov; registration number NCT02912624.

Indexed as

Cardiac outputCritical careIntensive care unitMedical studentsUltrasonography

Identifiers

PMID31912438
PMCPMC6946766
OpenAlexW2998928744

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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.