Evidence map›Paper›PMID 20563629›Full record

ArticleJournal of clinical monitoring and computing2010

Cardiac index measurements by transcutaneous Doppler ultrasound and transthoracic echocardiography in adult and pediatric emergency patients.

H Bryant Nguyen, Daryl P Banta, Gail Stewart, Tommy Kim, Ramesh Bansal, James Anholm, William A Wittlake, Stephen W Corbett

2 registry-linked trialsAbstract read
PubMed Publisher
In one paragraph

Article in Journal of clinical monitoring and computing, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 17 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 1 pooled it
3.0field-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.

NCT02083172 completednot on this mapstarted 2014, after this paper: background citation

Evaluating Agreement Between USCOM and 2D-echocardiographic Hemodynamic Measurements in Pediatric Patients

TypeobservationalSponsorMcMaster UniversityRan2014 to 2016Enrolled78ConditionsHemodynamically Stable, Critical IllnessArmsUltrasound Cardiac Output Monitor and 2 D-Echo
NCT02289508 completednot on this mapstarted 2014, after this paper: background citation

Diagnostic and Prognostic Role of USCOM in Adult Patients With Heart Failure-A Prospective Observational Study

TypeobservationalSponsorChinese University of Hong KongRan2014 to 2018Enrolled242ConditionsAcute Decompensated Heart Failure, Congestive Heart Failure CompensatedArmsUltrasonic cardiac output monitor, Echocardiography
3 · Its place in the literature

Who cites it

17 citing papers in PubMed, 1 synthesis or guideline pooled it, 40 citations in OpenAlex.

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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

8 authors at 2 institutions in 1 country.

H Bryant NguyenDepartment of Emergency Medicine, Loma Linda University Medical Center, Loma Linda University, CA 92354, USA. hbnguyen@llu.edu
Daryl P Banta
Gail Stewart
Tommy Kim
Ramesh Bansal
James Anholm
William A Wittlake
Stephen W Corbett
Loma Linda University · USLoma Linda University Medical Center · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionNon-invasive hemodynamic monitoring may facilitate resuscitation in critically ill patients. Validation studies examining a transcutaneous Doppler ultrasound technology, USCOM-1A, using pulmonary artery catheter as the reference standard showed varying results. In this study, we compared non-invasive cardiac index (CI) measurements by USCOM-1A with transthoracic echocardiography (TTE).

methodsThis study was a prospective, observational cohort study at a university tertiary-care emergency department, enrolling a convenience sample of adult and pediatric patients. Paired measures of CI, stroke volume index (SVI), aortic outflow tract diameter (OTD), velocity time integral (VTI) were obtained using USCOM-1A and TTE. Pearson's correlation and Bland-Altman analyses were performed.

resultsOne-hundred and sixteen subjects were enrolled, with obtainable USCOM-1A CI measurements for 99 subjects (55 adults age 50 +/- 20 years and 44 children age 11 +/- 4 years) in the final analysis. Cardiac, gastrointestinal and infectious illnesses were the most common presenting diagnostic categories. The reference standard TTE measurements of CI, SVI, OTD, and VTI in all subjects were 3.08 +/- 1.18 L/min/m(2), 37.10 +/- 10.91 mL/m(2), 1.92 +/- 0.36 cm, and 20.36 +/- 4.53 cm, respectively. Intra-operator reliability of USCOM-1A CI measurements showed a correlation coefficient of r = 0.79, with 11 +/- 22% difference between repeated measures. The bias and limits of agreement of USCOM-1A compared to TTE CI were 0.58 (-1.48 to 2.63) L/min/m(2). The percent difference in CI measurements with USCOM-1A was 31 +/- 28% relative to TTE measurements.

conclusionsThe USCOM-1A hemodynamic monitoring technology showed poor correlation and agreement to standard transthoracic echocardiography measures of cardiac function. The utility of USCOM-1A in the management of critically ill patients remains to be determined.

Indexed as

Cardiac OutputCritical IllnessEchocardiographyAdolescentAdultAgedChildCohort StudiesEmergency Medical ServicesHeart RateHumansMiddle AgedMonitoring, PhysiologicProspective StudiesSkinStroke Volume

Identifiers

PMID20563629
OpenAlexW1992346396

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.