Evidence map›Paper›PMID 27683608›Full record

ArticlePulmonary circulation2016

Hemodynamic evidence of vascular remodeling in combined post- and precapillary pulmonary hypertension.

Tufik R Assad, Evan L Brittain, Quinn S Wells, Eric H Farber-Eger, Stephen J Halliday, Laura N Doss, Meng Xu, Li Wang, Frank E Harrell, Chang Yu and 3 more

Open access · bronzeAbstract read
In one paragraph

Article in Pulmonary circulation, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
5.9field-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

32 citing papers in PubMed, 43 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Article
  6. Review
  7. Review
  8. Article
  9. Review
  10. Article
  11. Pulmonary Hypertension in Heart Failure.International journal of heart failure · 2021
    Review
  12. Review
  13. Review
  14. Article
  15. The Biological Bases of Group 2 Pulmonary Hypertension.International journal of molecular sciences · 2019
    Review
  16. Article
  17. Article
  18. Article
  19. Observational
  20. Article
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

13 authors at 1 institution in 1 country.

Tufik R AssadDivision of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee, USA.
Evan L BrittainDivision of Cardiovascular Medicine, Department of Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee, USA.
Quinn S WellsDivision of Cardiovascular Medicine, Department of Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee, USA.
Eric H Farber-EgerCenter for Human Genetics Research, Vanderbilt University, Nashville, Tennessee, USA.
Stephen J HallidayDivision of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee, USA.
Laura N DossDivision of Cardiovascular Medicine, Department of Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee, USA.
Meng XuDepartment of Biostatistics, Vanderbilt University, Nashville, Tennessee, USA.
Li WangDepartment of Biostatistics, Vanderbilt University, Nashville, Tennessee, USA.
Frank E HarrellDepartment of Biostatistics, Vanderbilt University, Nashville, Tennessee, USA.
Chang YuDepartment of Biostatistics, Vanderbilt University, Nashville, Tennessee, USA.
Ivan M RobbinsDivision of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee, USA.
John H NewmanDivision of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee, USA.
Anna R HemnesDivision of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee, USA.
Vanderbilt University · US

Funding

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
NHLBI NIH HHS T32 HL087738NHLBI NIH HHS U01 HL125212
6 · The paper itself

Abstract

Although commonly encountered, patients with combined postcapillary and precapillary pulmonary hypertension (Cpc-PH) have poorly understood pulmonary vascular properties. The product of pulmonary vascular resistance and compliance, resistance-compliance (RC) time, is a measure of pulmonary vascular physiology. While RC time is lower in postcapillary PH than in precapillary PH, the RC time in Cpc-PH and the effect of pulmonary wedge pressure (PWP) on RC time are unknown. We tested the hypothesis that Cpc-PH has an RC time that resembles that in pulmonary arterial hypertension (PAH) more than that in isolated postcapillary PH (Ipc-PH). We analyzed the hemodynamics of 282 consecutive patients with PH referred for right heart catheterization (RHC) with a fluid challenge from 2004 to 2013 (cohort A) and 4,382 patients who underwent RHC between 1998 and 2014 for validation (cohort B). Baseline RC time in Cpc-PH was higher than that in Ipc-PH and lower than that in PAH in both cohorts (P < 0.001). In cohort A, RC time decreased after fluid challenge in patients with Ipc-PH but not in those with PAH or Cpc-PH (P < 0.001). In cohort B, the inverse relationship of pulmonary vascular compliance and resistance, as well as that of RC time and PWP, in Cpc-PH was similar to that in PAH and distinct from that in Ipc-PH. Our findings demonstrate that patients with Cpc-PH have pulmonary vascular physiology that resembles that of patients with PAH more than that of Ipc-PH patients. Further study is warranted to identify determinants of vascular remodeling and assess therapeutic response in this subset of PH.

Indexed as

postcapillaryprecapillarypulmonary hypertensionpulmonary vascular compliancepulmonary vascular resistanceresistance-compliance time

Identifiers

PMID27683608
PMCPMC5019084
OpenAlexW2465698549

What Socratic holds

Textmetadata
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.