Evidence map›Paper›PMID 33792816›Full record

ArticleJournal of artificial organs : the official journal of the Japanese Society for Artificial Organs2021

VE/VCO2 slope predicts RV dysfunction and mortality after left ventricular assist device: a fresh look at cardiopulmonary stress testing for prognostication.

Jonathan Grinstein, Yazan Sawalha, Diego A Medvedofsky, Sarah Ahmad, Mark Hofmeyer, Maria Rodrigo, Ajay Kadakkal, Christopher Barnett, Sara Kalantari, Ish Talati and 4 more

Abstract read
PubMed Publisher
In one paragraph

Article in Journal of artificial organs : the official journal of the Japanese Society for Artificial Organs, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing 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.

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

9 citing papers in PubMed.

  1. Trial
  2. CPET Characteristics in HFrEF, HFpEF and COPD.Journal of clinical medicine · 2026
    Review
  3. Cardiopulmonary Exercise Testing across Interdialytic Intervals in Hemodialysis Patients.Clinical journal of the American Society of Nephrology : CJASN · 2025
    Article
  4. Review
  5. Article
  6. Review
  7. Article
  8. Article
  9. 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

14 authors.

Jonathan GrinsteinUniversity of Chicago, Chicago, IL, USA. jgrinstein@medicine.bsd.uchicago.edu.ORCID http://orcid.org/0000-0002-7053-8928
Yazan SawalhaMedStar Washington Hospital Center, Washington, DC, USA.
Diego A MedvedofskyMedStar Washington Hospital Center, Washington, DC, USA.
Sarah AhmadUniversity of Toronto, Toronto, ON, Canada.
Mark HofmeyerMedStar Washington Hospital Center, Washington, DC, USA.
Maria RodrigoMedStar Washington Hospital Center, Washington, DC, USA.
Ajay KadakkalMedStar Washington Hospital Center, Washington, DC, USA.
Christopher BarnettMedStar Washington Hospital Center, Washington, DC, USA.
Sara KalantariUniversity of Chicago, Chicago, IL, USA.
Ish TalatiGeorgetown School of Medicine, Washington, DC, USA.
Raja ZagholMedStar Washington Hospital Center, Washington, DC, USA.
Ezequiel J MolinaMedStar Washington Hospital Center, Washington, DC, USA.
Farooq H SheikhMedStar Washington Hospital Center, Washington, DC, USA.
Samer S NajjarMedStar Washington Hospital Center, Washington, DC, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Preoperative cardiopulmonary exercise testing (CPET) is well validated for prognostication before advanced surgical heart failure therapies, but its role in prognostication after LVAD surgery has never been studied. VE/VCO2 slope is an important component of CPET which has direct pathophysiologic links to right ventricular (RV) performance. We hypothesized that VE/VCO

Indexed as

Heart-Assist DevicesHeart FailureVentricular Dysfunction, RightExercise TestHumansOxygen ConsumptionPrognosisCardiopulmonary stress testingLVADRight ventricular failureVE/VCO2

Identifiers

What OpenQuestion 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 OpenQuestion graph.