Evidence map›Paper›PMID 29724722›Full record

ArticleCirculation. Heart failure2018

Coronary Artery Remodeling and Fibrosis With Continuous-Flow Left Ventricular Assist Device Support.

Amrut V Ambardekar, Mary C M Weiser-Evans, Marcella Li, Suneet N Purohit, Muhammad Aftab, T Brett Reece, Karen S Moulton

Open access · bronzeAbstract read
In one paragraph

Article in Circulation. Heart failure, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.2field-weighted citation impact, top 22% 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

15 citing papers in PubMed, 24 citations in OpenAlex.

  1. Review
  2. Hemodynamic analysis of the aortic root based on differences in outflow graft angle in patients with implantable left ventricular assist devices.Journal of artificial organs : the official journal of the Japanese Society for Artificial Organs · 2026
    Article
  3. Physiologic effects of different hemodynamic patterns of LVAD.Frontiers in cardiovascular medicine · 2025
    Review
  4. Review
  5. Article
  6. Article
  7. Review
  8. Review
  9. Intracellular CaJournal of cardiovascular translational research · 2022
    Article
  10. Article
  11. Review
  12. Effects of Pulsatile Frequency of Left Ventricular Assist Device (LVAD) on Coronary Perfusion: A Numerical Simulation Study.Medical science monitor : international medical journal of experimental and clinical research · 2020
    Article
  13. Review
  14. Article
  15. 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

7 authors at 1 institution in 1 country.

Amrut V AmbardekarDivision of Cardiology, Department of Medicine (A.V.A., M.L., S.N.P., K.S.M.) amrut.ambardekar@ucdenver.edu.
Mary C M Weiser-EvansConsortium for Fibrosis Research and Translation (A.V.A., M.C.M.W.-E., K.S.M.).
Marcella LiDivision of Cardiology, Department of Medicine (A.V.A., M.L., S.N.P., K.S.M.).
Suneet N PurohitDivision of Cardiology, Department of Medicine (A.V.A., M.L., S.N.P., K.S.M.).
Muhammad Aftaband Division of Cardiothoracic Surgery, Department of Surgery (M.A., T.B.R.), University of Colorado, Aurora.
T Brett Reeceand Division of Cardiothoracic Surgery, Department of Surgery (M.A., T.B.R.), University of Colorado, Aurora.
Karen S MoultonDivision of Cardiology, Department of Medicine (A.V.A., M.L., S.N.P., K.S.M.).
Hypertension Institute · US

Funding

NIH Prior Approval Process ProfessionalUL1TR002535 · NCATS · UNIVERSITY OF COLORADO DENVER · PI SOKOL, RONALD J. · 2018 to 2022
$51.1M
Colorado Clinical and Translational Sciences InstituteUL1TR001082 · NCATS · UNIVERSITY OF COLORADO DENVER · PI SOKOL, RONALD J. · 2013 to 2017
$48.0M
PTEN-dependent regulation of SRF transcriptional activity and SMC phenotype controlR01HL123616 · NHLBI · UNIVERSITY OF COLORADO DENVER · PI WEISER-EVANS, MARY CM. · 2015 to 2018
$2.0M
NCATS NIH HHS UL1 TR001082NCATS NIH HHS UL1 TR002535NHLBI NIH HHS R01 HL123616
6 · The paper itself

Abstract

backgroundCoronary artery fluid dynamics may be altered because of the nonphysiological flow seen in continuous-flow left ventricular assist devices (CF-LVADs). Our aim was to study the structure and composition of coronary vessels after CF-LVAD. METHODS AND

resultsCoronary arteries were collected from patients with heart failure (HF) at the time of transplantation, of whom 15 were supported with a CF-LVAD before transplant (HF+LVAD group) and 9 were not (HF non-LVAD group). In addition, coronary samples were obtained from 5 nonfailing age-matched donors (nonfailing group). Histological analysis was performed to quantify coronary morphology, composition, vascular fibrosis, and vasa vasorum density. The age and sex mix of the 3 groups were similar, and the mean duration of LVAD support was 213 days. Compared with patients with HF and nonfailing donors, the arteries from patients with HF+LVAD had expansion of the adventitia, breakdown of the internal elastic lamina, and increased adventitial collagen deposition and density of vasa vasorum.

conclusionsAmong patients supported with CF-LVADs, the coronary arteries develop marked remodeling with increased adventitial fibrosis. The physiological consequences of these structural changes are unknown, but it is possible that arterial contractility may be impaired, thus limiting coronary flow reserve and promoting myocardial ischemia. This may contribute to CF-LVAD complications, such as ventricular arrhythmias and right ventricular failure. As more patients receive CF-LVADs and new pump technology attempts to modulate flow profiles and pulsatility, further research is needed to understand the mechanisms and long-term sequela of these changes in coronary arteries and other vascular beds.

Indexed as

Heart-Assist DevicesAdultAgedCoronary VesselsFemaleFibrosisHeartHeart FailureHumansMaleMiddle AgedMyocardial IschemiaVentricular Function, Leftassisted circulationcoronary vesselsheart assist devicesheart failurevascular remodeling

Identifiers

PMID29724722
PMCPMC5941935
OpenAlexW2802839571

What OpenQuestion holds

Textmetadata
LicenceTDM
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 OpenQuestion graph.