Evidence map›Paper›PMID 39131473›Full record

ArticleJournal of the Society for Cardiovascular Angiography & Interventions

Ejection Fraction Improvement Following Contemporary High-Risk Percutaneous Coronary Intervention: RESTORE EF Study Results.

Jason Wollmuth, Mitul P Patel, Thom Dahle, Aditya Bharadwaj, Thomas E Waggoner, Jeffrey W Chambers, Ernesto Ruiz-Rodriguez, Ehtisham Mahmud, Craig Thompson, D Lynn Morris and 1 more

Registry-linked trialAbstract read
In one paragraph

Article in Journal of the Society for Cardiovascular Angiography & Interventions. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04648306 (Restore EF Observational Study), which is not on this map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
–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.

NCT04648306 completednot on this map

Restore EF Observational Study (in High-risk PCI)

Typeobservational_patient_registrySponsorAbiomed Inc.Ran2019 to 2021Enrolled406ConditionsCoronary Artery Disease, Unstable Angina, Angina, Stable, NSTEMI - Non-ST Segment Elevation MIArmsProphylactic Impella support for a non-emergent PCI
3 · Its place in the literature

Who cites it

20 citing papers in PubMed.

  1. Trial
  2. Review
  3. Contemporary evidence in protected percutaneous coronary intervention: a case-based review.European heart journal supplements : journal of the European Society of Cardiology · 2026
    Article
  4. Patient selection for complex, high-risk indicated percutaneous coronary intervention procedures: an overview.European heart journal supplements : journal of the European Society of Cardiology · 2026
    Article
  5. Article
  6. Article
  7. Article
  8. Mechanical Circulatory Support With Impella in High-Risk Patients With Chronic Total Occlusion and Complex Multivessel Disease.Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions · 2025
    Article
  9. Article
  10. Review
  11. Review
  12. Article
  13. Review
  14. Clinical characteristics and outcomes of patients requiring prolonged mechanical circulatory support after high-risk percutaneous coronary intervention.EuroIntervention : journal of EuroPCR in collaboration with the Working Group on Interventional Cardiology of the European Society of Cardiology · 2024
    Article
  15. Article
  16. Review
  17. Predicting left ventricular functional recovery in ischaemic cardiomyopathy: needs and challenges.European heart journal supplements : journal of the European Society of Cardiology · 2023
    Article
  18. Article
  19. Article
  20. Review
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

11 authors.

Jason WollmuthProvidence Heart and Vascular Institute, Portland, Oregon.
Mitul P PatelDivision of Cardiovascular Medicine, UC San Diego Health System, La Jolla, California.
Thom DahleCentracare Heart & Vascular Center, St. Cloud, Minnesota.
Aditya BharadwajDivision of Cardiology, Loma Linda University Medical Center, Loma Linda, California.
Thomas E WaggonerPima Heart and Vascular, Tucson, Arizona.
Jeffrey W ChambersMetropolitan Heart & Vascular Institute, Minneapolis, Minnesota.
Ernesto Ruiz-RodriguezBaptist Health Heart Institute/Arkansas Cardiology Clinic-Little Rock, Little Rock, Arkansas.
Ehtisham MahmudDivision of Cardiovascular Medicine, UC San Diego Health System, La Jolla, California.
Craig ThompsonDivision of Cardiology, Department of Medicine, NYU Langone Health, New York, New York.
D Lynn MorrisDivision of Cardiology, East Carolina Heart Institute at ECU, Greenville, North Carolina.
RESTORE EF Investigators

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Despite many reports of clinical outcomes in patients undergoing high-risk percutaneous coronary intervention (HRPCI) with hemodynamic support, little is known about whether this approach improves left ventricular ejection fraction (LVEF). The purpose of the present observational study was to examine, in an ideal patient population with Impella-supported HRPCI, whether there is an impact on left ventricular function at midterm follow-up. Methods: RESTORE EF is a multicenter, retrospective analysis of a prospectively collected observational data set that aimed to assess 90-day LVEF in patients undergoing Impella-supported nonemergent HRPCI (NCT04648306), who survived with no intervening cardiac procedures prior to the primary endpoint follow-up window (90-day LVEF assessment). Secondary endpoints included change in New York Heart Association Functional Classification and Canadian Cardiovascular Society Angina Grade at the last follow-up. Results: From August 2019 to May 2021, 406 patients were enrolled at 22 US sites. Age was 70.2 ​​± ​​11.4 ​​years; 26% were female. In paired assessment at 90-day follow-up, baseline LVEF improved from 35 ​​± ​​15% to 45 ​​± ​​14% ( Conclusions: In an ideal cohort of HRPCI patients, there is a signal that hemodynamically supported HRPCI affords significant improvement in 90-day LVEF, with complete revascularization associated with greater LVEF improvement. These hypothesis-generating findings merit further assessment in large, all-comer studies and randomized trials.

Indexed as

complete revascularizationhigh-risk percutaneous coronary interventionImpellaleft ventricular ejection fractionpercutaneous coronary intervention

Identifiers

PMID39131473
PMCPMC11307872

What OpenQuestion holds

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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.