Evidence map›Paper›PMID 12360125›Full record

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

Impact of revascularization and myocardial viability determined by nitrate-enhanced Tc-99m sestamibi and Tl-201 imaging on mortality and functional outcome in ischemic cardiomyopathy.

Roxy Senior, Sanjiv Kaul, Usha Raval, Avijit Lahiri

Abstract readClinical TrialComparative StudyControlled Clinical Trial
PubMed Publisher
In one paragraph

Trial report in Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
4.7field-weighted citation impact, top 6% 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

21 citing papers in PubMed, 1 synthesis or guideline pooled it, 76 citations in OpenAlex.

  1. Quantity of viable myocardium required to improve survival with revascularization in patients with ischemic cardiomyopathy: A meta-analysis.Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology · 2010
    Pooled it
  2. Trial
  3. Article
  4. Review
  5. Review
  6. Article
  7. Review
  8. Radionuclide Imaging of Viable Myocardium: Is it Underutilized?Current cardiovascular imaging reports · 2011
    Article
  9. Review
  10. Article
  11. Article
  12. Review
  13. Article
  14. Paucity of anginal symptoms and stress-induced perfusion abnormalities in ischemic cardiomyopathy.Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology
    Article
  15. Prognostic value of myocardial perfusion-gated SPECT in patients with ischemic cardiomyopathy.Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology
    Article
  16. Prognostic validation of an algorithm to convert myocardial perfusion SPECT imaging data from a 12-segment model to a 17-segment model.Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology
    Article
  17. The historical and conceptual evolution of radionuclide assessment of myocardial viability.Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology
    Review
  18. Advances in positron emission tomography.Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology
    Review
  19. Antianginal medications and diagnostic accuracy of myocardial perfusion imaging.Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology
    Article
  20. First annual Mario S. Verani, MD, Memorial lecture: clinical value of myocardial perfusion imaging in coronary artery disease.Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology
    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

4 authors at 3 institutions in 2 countries.

Roxy SeniorDepartment of Cardiovascular Medicine, Northwick Park Hospital and Institute of Medical Research, Harrow, United Kingdom. nphcardiology@netscapeonline.co.uk
Sanjiv Kaul
Usha Raval
Avijit Lahiri
Northwick Park Hospital · GBNorthwick Park Institute for Medical Research · GBUniversity of Virginia · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundNitrate-enhanced perfusion imaging has been shown to detect viability in dysfunctional myocardium, but nitrate-enhanced technetium 99m sestamibi has not been compared with nitrate-enhanced thallium 201. METHODS AND

resultsFifty-six patients with ischemic cardiomyopathy and heart failure (New York Heart Association classes II-IV) were scheduled for revascularization. Through use of a matching 12-segment model, nitrate-enhanced Tl-201 and Tc-99m sestamibi uptake at rest was assessed by 2 sets of blinded investigators. All single photon emission computed tomography data sets were read separately. Additional exercise Tc-99m sestamibi single photon emission computed tomography was performed on a separate day. Myocardial viability was thought to be present when the tracer uptake score was less than 3 (normal, 0; absent, 4). Of the 56 patients scheduled to undergo revascularization, only 23 (41%) underwent the procedure and the remainder continued medical therapy. Functional assessment by rest echocardiography was performed at 21 +/- 8 months, and survival was determined at 40 +/- 18 months. The baseline clinical and hemodynamic parameters were similar in the revascularization (n = 23) and medical therapy (n = 33) groups. Perfusion scores with nitrate-enhanced Tl-201 and Tc-99m sestamibi were similar in dysfunctional segments. Stress Tc-99m sestamibi reversible defects predicted significant improvement in left ventricular function compared with those without defects (P <.01) after revascularization. Cox regression model showed that when at least 5 reversible segments were viable, revascularization produced greater improvements in New York Heart Association class, a better trend toward survival (P =.07 for Tl-201 and P =.06 for Tc-99m), and a significantly greater impact on reverse remodeling.

conclusionsMyocardial viability determined by nitrate-enhanced Tl-201 and myocardial viability determined by Tc-99m sestamibi are equivalent for predicting functional improvements, remodeling, and survival after revascularization in patients with ischemic cardiomyopathy.

Indexed as

NitroglycerinTechnetium Tc 99m SestamibiThalliumAgedExercise TestFemaleFollow-Up StudiesHeartHeart FailureHumansMaleMyocardial IschemiaMyocardial RevascularizationRadiopharmaceuticalsSeverity of Illness IndexSingle-Blind MethodNitroglycerinRadiopharmaceuticalsTechnetium Tc 99m SestamibiThalliumthallium chloride

Identifiers

PMID12360125
OpenAlexW2020144763

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.