Evidence map›Paper›PMID 25453535›Full record

ArticleJACC. Heart failure2015

The diastolic pulmonary gradient does not predict survival in patients with pulmonary hypertension due to left heart disease.

Emmanouil Tampakakis, Peter J Leary, Van N Selby, Teresa De Marco, Thomas P Cappola, G Michael Felker, Stuart D Russell, Edward K Kasper, Ryan J Tedford

Abstract read
In one paragraph

Article in JACC. Heart failure, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 67 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
67citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

67 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Trial
  3. Trial
  4. Trial
  5. Review
  6. Article
  7. Diagnosing post-capillary hypertension in patients with left heart disease: impact of new guidelines.Clinical research in cardiology : official journal of the German Cardiac Society · 2026
    Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Active left atrial ejection fraction as a non-invasive marker in pulmonary hypertension secondary to heart failure.Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance · 2024
    Article
  14. Article
  15. Article
  16. Article
  17. The sine transform is theFrontiers in cardiovascular medicine · 2023
    Article
  18. Article
  19. Hemodynamic indices in pulmonary hypertension: a narrative review.Cardiovascular diagnosis and therapy · 2022
    Review
  20. Observational

7 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors.

Emmanouil TampakakisDivision of Cardiology, Department of Medicine, Johns Hopkins Medical Institutions, Baltimore, Maryland.
Peter J LearyDivision of Pulmonary and Critical Care, University of Washington, Seattle, Washington.
Van N SelbyDivision of Cardiology, University of California-San Francisco, San Francisco, California.
Teresa De MarcoDivision of Cardiology, University of California-San Francisco, San Francisco, California.
Thomas P CappolaPenn Cardiovascular Institute, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania.
G Michael FelkerDivision of Cardiology, Duke University Medical Center, Durham, North Carolina.
Stuart D RussellDivision of Cardiology, Department of Medicine, Johns Hopkins Medical Institutions, Baltimore, Maryland.
Edward K KasperDivision of Cardiology, Department of Medicine, Johns Hopkins Medical Institutions, Baltimore, Maryland.
Ryan J TedfordDivision of Cardiology, Department of Medicine, Johns Hopkins Medical Institutions, Baltimore, Maryland. Electronic address: ryan.tedford@jhmi.edu.

Funding

Institute of Translational Health SciencesUL1TR000423 · NCATS · UNIVERSITY OF WASHINGTON · PI DISIS, MARY L. · 2012 to 2016
$49.4M
PATHOPHYSIOLOGY OF MYOCARDIAL DISEASEST32HL007227 · NHLBI · JOHNS HOPKINS UNIVERSITY · PI Chulan Kwon, WENDY S POST · 1985 to 2026
$21.2M
Institute of Translational Health SciencesKL2TR000421 · NCATS · UNIVERSITY OF WASHINGTON · PI DISIS, MARY L. · 2012 to 2016
$12.6M
NCATS NIH HHS KL2 TR000421NCATS NIH HHS UL1 TR000423NHLBI NIH HHS L30 HL110304NHLBI NIH HHS T32 HL007227
6 · The paper itself

Abstract

objectivesThis study sought to evaluate if diastolic pulmonary gradient (DPG) can predict survival in patients with pulmonary hypertension due to left heart disease (PH-LHD).

backgroundPatients with combined post- and pre-capillary PH-LHD have worse prognosis than those with passive pulmonary hypertension. The transpulmonary gradient (TPG) and pulmonary vascular resistance (PVR) have commonly been used to identify high-risk patients. However, these parameters have significant shortcomings and do not always correlate with pulmonary vasculature remodeling. Recently, it has been suggested that DPG may be better a marker, yet its prognostic ability in patients with cardiomyopathy has not been fully assessed.

methodsA retrospective cohort of 1,236 patients evaluated for unexplained cardiomyopathy at Johns Hopkins Hospital was studied. All patients underwent right heart catheterization and were followed until death, cardiac transplantation, or the end of the study period (mean time 4.4 years). The relationships between DPG, TPG, or PVR and survival in subjects with PH-LHD (n = 469) were evaluated with Cox proportional hazards regression and Kaplan-Meier analyses.

resultsDPG was not significantly associated with mortality (hazard ratio [HR]: 1.02, p = 0.10) in PH-LHD whereas elevated TPG and PVR predicted death (HR: 1.02, p = 0.046; and HR: 1.11, p = 0.002, respectively). Similarly, DPG did not differentiate survivors from non-survivors at any selected cut points including a DPG of 7 mm Hg.

conclusionsIn this retrospective study of patients with cardiomyopathy and PH-LHD, an elevated DPG was not associated with worse survival.

Indexed as

AdultCardiac CatheterizationDiastoleFemaleFollow-Up StudiesHumansHypertension, PulmonaryKaplan-Meier EstimateMaleMiddle AgedPrognosisPulmonary Wedge PressureRetrospective StudiesSurvival RateUnited StatesVascular Resistancediastolic pulmonary gradientleft heart diseasepulmonary hypertensionsurvival

Identifiers

PMID25453535
PMCPMC4289416

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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.