Evidence map›Paper›PMID 29960993›Full record

ArticleJournal of the American Heart Association2018

Lack of a Tricuspid Regurgitation Doppler Signal and Pulmonary Hypertension by Invasive Measurement.

Jared M O'Leary, Tufik R Assad, Meng Xu, Eric Farber-Eger, Quinn S Wells, Anna R Hemnes, Evan L Brittain

Open access · goldAbstract read
In one paragraph

Article in Journal of the American Heart Association, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed, 2 pooled it
5.7field-weighted citation impact, top 3% 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

50 citing papers in PubMed, 2 syntheses or guidelines pooled it, 97 citations in OpenAlex.

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  5. Incident Pulmonary Hypertension and Its Risk Factors in CKD.Clinical journal of the American Society of Nephrology : CJASN · 2026
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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

7 authors at 2 institutions in 1 country.

Jared M O'LearyDivision of Cardiovascular Medicine, Vanderbilt University Medical Center, Nashville, TN.
Tufik R AssadDivision of Allergy, Pulmonary and Critical Care Medicine, Vanderbilt University Medical Center, Nashville, TN.
Meng XuDepartment of Biostatistics, Vanderbilt University, Nashville, TN.
Eric Farber-EgerDivision of Cardiovascular Medicine, Vanderbilt University Medical Center, Nashville, TN.
Quinn S WellsDivision of Cardiovascular Medicine, Vanderbilt University Medical Center, Nashville, TN.
Anna R HemnesDivision of Allergy, Pulmonary and Critical Care Medicine, Vanderbilt University Medical Center, Nashville, TN.
Evan L BrittainDivision of Cardiovascular Medicine, Vanderbilt University Medical Center, Nashville, TN evan.brittain@vanderbilt.edu.
Vanderbilt University Medical Center · USVanderbilt University · US

Funding

The Vanderbilt Institute for Clinical and Translational Research (VICTR)UL1TR000445 · NCATS · VANDERBILT UNIVERSITY MEDICAL CENTER · PI BERNARD, GORDON RAPHAEL · 2012 to 2016
$41.4M
Clinical and Translational Training Program in Pulmonary MedicineT32HL087738 · NHLBI · VANDERBILT UNIVERSITY MEDICAL CENTER · PI Lorraine B Ware · 2007 to 2026
$7.0M
A molecular phenotype of combined pulmonary hypertensionU01HL125212 · NHLBI · VANDERBILT UNIVERSITY MEDICAL CENTER · PI HEMNES, ANNA R, NEWMAN, JOHN HUGHES · 2014 to 2018
$1.5M
NCATS NIH HHS UL1 TR000445NHLBI NIH HHS T32 HL087738NHLBI NIH HHS U01 HL125212
6 · The paper itself

Abstract

backgroundTransthoracic echocardiography (TTE) is used to estimate pulmonary artery systolic pressure, but an adequate tricuspid regurgitation velocity (TRV) needed to calculate pulmonary artery systolic pressure is not always present. It is unknown whether the absence of a measurable TRV signifies normal pulmonary artery pressure. METHODS AND

resultsWe extracted hemodynamic, TTE, and clinical data from Vanderbilt's deidentified electronic medical record in all patients referred for right heart catheterization between 1998 and 2014. Pulmonary hypertension (PH) was defined as mean pulmonary artery pressure ≥25 mm Hg. We examined the prevalence and clinical correlates of PH in patients without a reported TRV. We identified 1262 patients with a TTE within 2 days of right heart catheterization. In total, 803/1262 (64%) had a reported TRV, whereas 459 (36%) had no reported TRV. Invasively confirmed PH was present in 47% of patients without a reported TRV versus 68% in those with a reported TRV (

conclusionsPH is present in almost half of patients without a measurable TRV who are referred for both TTE and right heart catheterization. Clinical and echocardiographic features of left heart disease are associated with invasively confirmed PH in subjects without a reported TRV. Clinicians should use caution when making assumptions about PH status in the absence of a measurable TRV on TTE.

Indexed as

Arterial PressureCardiac CatheterizationEchocardiography, DopplerAdultAgedFemaleHumansHypertension, PulmonaryMaleMiddle AgedPredictive Value of TestsPrevalencePrognosisPulmonary ArteryReproducibility of ResultsTricuspid Valveechocardiographyhemodynamicsimagingpulmonary hypertensionright heart catheterization

Identifiers

PMID29960993
PMCPMC6064901
OpenAlexW2810904251

What Socratic holds

Textmetadata
LicenceCC BY-NC-ND
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 Socratic graph.