Evidence map›Paper›PMID 22537025›Full record

ArticleCongestive heart failure (Greenwich, Conn.)

Prognostic value of capnography during rest and exercise in patients with heart failure.

Ross Arena, Marco Guazzi, Jonathan Myers, Paul Chase, Daniel Bensimhon, Lawrence P Cahalin, Mary Ann Peberdy, Euan Ashley, Erin West, Daniel E Forman

Abstract read
In one paragraph

Article in Congestive heart failure (Greenwich, Conn.). 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. Predictive Value of End-Tidal COMedicina (Kaunas, Lithuania) · 2026
    Observational
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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

10 authors.

Ross ArenaPhysical Therapy Program, Department of Orthopaedics and Rehabilitation, School of Medicine, University of New Mexico, Albuquerque, NM 87131-0001, USA. rarena@salud.unm.edu
Marco Guazzi
Jonathan Myers
Paul Chase
Daniel Bensimhon
Lawrence P Cahalin
Mary Ann Peberdy
Euan Ashley
Erin West
Daniel E Forman

Funding

Senior Research Career ScientistIK6RX002477 · VA · VETERANS ADMIN PALO ALTO HEALTH CARE SYS · PI MYERS, JONATHAN N. · 2017 to 2025
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RRD VA IK6 RX002477
6 · The paper itself

Abstract

New variables obtained from cardiopulmonary exercise testing (CPX) have received attention in recent years, in particular the partial pressure of end-tidal carbon dioxide (P(ET) CO(2) ). The purpose of this study was to therefore comprehensively assess the ability of resting and exercise P(ET) CO(2) to predict major cardiac events in a heart failure (HF) cohort referred for CPX. A total of 963 patients with systolic HF undergoing symptom-limited CPX were included in the analysis. Resting and exercise P(ET) CO(2) along with other CPX variables were determined, and patients were followed for major adverse events. With regard to resting measures, multivariate analysis revealed that left ventricular ejection fraction was the most robust prognostic marker (P<.001) while resting P(ET) CO(2) added significant predictive value and was retained in the regression (P<.001). When exercise data were considered, the multivariate analysis revealed that the P(ET) CO(2) apex during exercise added predictive value and was retained (P<.05). In what is the largest evaluation of P(ET) CO(2) in the assessment of systolic HF patients to date, the authors substantiate prior (smaller) studies showing prognostic utility of P(ET) CO(2) , both as a resting measure (an important potential screening tool) and during exercise. These data add to the rationale to incorporate P(ET) CO(2) as a routine monitoring component in HF management.

Indexed as

AdultAgedCapnographyCohort StudiesDisease ProgressionExercise TestHeart-Assist DevicesHeart Failure, SystolicHeart TransplantationHumansLongitudinal StudiesMiddle AgedPrognosisProportional Hazards ModelsStroke Volume

Identifiers

PMID22537025
PMCPMC7245610

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.