Evidence map›Paper›PMID 21971704›Full record

Trial reportJournal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology2011

Clinical role of the Duke Activity Status Index in the selection of the optimal type of stress myocardial perfusion imaging study in patients with known or suspected ischemic heart disease.

Lawrence Phillips, Jing Wa Wang, Brad Pfeffer, Eugenia Gianos, Daniel Fisher, Leslee J Shaw, Jennifer H Mieres

Abstract readRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
2.6field-weighted citation impact, top 12% 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

14 citing papers in PubMed, 34 citations in OpenAlex.

  1. Trial
  2. Trial
  3. Trial
  4. A strategy of symptom-limited exercise with regadenoson-as-needed for stress myocardial perfusion imaging: a randomized controlled trial.Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology · 2013
    Trial
  5. Article
  6. Article
  7. Comparative efficiency of exercise stress testing with and without stress-only myocardial perfusion imaging in patients with low-risk chest pain.Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology · 2018
    Article
  8. Choosing exercise or pharmacologic stress imaging, or exercise ECG testing alone: How to decide.Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology · 2017
    Article
  9. The role of treadmill exercise testing in women.Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology · 2016
    Review
  10. Article
  11. Article
  12. Provisional use of myocardial perfusion imaging in patients undergoing exercise stress testing: a worthy concept fraught with challenges.Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology · 2013
    Article
  13. The WOMENs trial: how should I interpret the results?Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology · 2012
    Article
  14. 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 4 institutions in 1 country.

Lawrence PhillipsDivision of Cardiology, Department of Medicine, New York University Langone Medical Center, 530 First Avenue, SKI-9U, New York, NY 10016, USA. Lawrence.Phillips@NYUMC.org
Jing Wa Wang
Brad Pfeffer
Eugenia Gianos
Daniel Fisher
Leslee J Shaw
Jennifer H Mieres
NYU Langone Health · USCalifornia Pacific Medical Center · USEmory University · USNorth Shore University Hospital · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundExercise treadmill stress myocardial perfusion imaging (MPI) with single photon emission computed tomography is commonly used to evaluate the extent and severity of inducible ischemia as well as to risk stratify patients with suspected and known coronary artery disease (CAD). Failure to reach adequate stress, defined as not attaining age-appropriate metabolic equivalents (METs), can underestimate the extent and severity of ischemic heart disease, resulting in false negative results. This study evaluates the efficacy of the Duke Activity Status Index (DASI), a simple self-administered 12-item questionnaire, as a predictor of METs achieved by treadmill stress testing.

methodsThe DASI was prospectively administered to 200 randomly selected men and women referred to the nuclear cardiology laboratory at New York University Langone Medical Center for stress MPI. Each patient was asked to complete the 12-item DASI questionnaire independently. 136 patients underwent treadmill exercise with MPI and 64 had pharmacologic stress with MPI. The association between exercise capacity in METs as estimated by the DASI questionnaire and performance on the Bruce treadmill protocol in METS was compared using chi-square statistics.

resultsOver 70% of those patients whose DASI score predicted the ability to perform <10 METs were unable to exercise beyond stage 2 of the Bruce protocol (7 METs). For those whose DASI score predicted ability to perform >12.5 METs, over 80% of patients reached >stage 2 of the Bruce protocol with 40% reaching beyond stage 3 (10 METs). When patient age was incorporated into the calculation, a more linear relationship was observed between predicted and obtained METs.

conclusionThe DASI is a simple self-administered questionnaire which is a useful pretest tool to determine a patient's ability to achieve appropriate METs. In the nuclear cardiology laboratory, the DASI has the potential to guide selection of exercise treadmill vs pharmacologic stress and ultimately improve laboratory efficiency.

Indexed as

Activities of Daily LivingDiagnostic Self EvaluationHealth Status IndicatorsSurveys and QuestionnairesAdultAgedExercise TestFemaleHumansMaleMiddle AgedMyocardial IschemiaMyocardial Perfusion ImagingPatient SelectionReproducibility of ResultsSensitivity and Specificity

Identifiers

PMID21971704
OpenAlexW2038491938

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.