Evidence map›Paper›PMID 33034835›Full record

ArticleJournal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology2022

The diagnostic and prognostic value of near-normal perfusion or borderline ischemia on stress myocardial perfusion imaging.

Kameel Kassab, Kifah Hussain, Andrea Torres, Fady Iskander, Mina Iskander, Rozi Khan, Rami Doukky

Abstract read
PubMed Publisher
In one paragraph

Article in Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
0.9field-weighted citation impact, top 22% 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

9 citing papers in PubMed, 1 synthesis or guideline pooled it, 11 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Review of cardiovascular imaging in the Journal of Nuclear Cardiology 2022: single photon emission computed tomography.Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology · 2023
    Review
  5. Article
  6. Prognostic utility ofFrontiers in cardiovascular medicine · 2023
    Article
  7. Article
  8. The prognostic implications of ST-segment and T-wave abnormalities in patients undergoing regadenoson stress SPECT myocardial perfusion imaging.Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology · 2022
    Article
  9. Drawing the line between a normal and mildly abnormal nuclear cardiology scan.Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology · 2022
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 2 institutions in 1 country.

Kameel KassabDivision of Cardiology, Cook County Health, 1901 W. Harrison St., Chicago, IL, 60612, USA.
Kifah HussainDivision of Cardiology, Cook County Health, 1901 W. Harrison St., Chicago, IL, 60612, USA.
Andrea TorresDivision of Cardiology, Cook County Health, 1901 W. Harrison St., Chicago, IL, 60612, USA.
Fady IskanderDivision of Cardiology, Cook County Health, 1901 W. Harrison St., Chicago, IL, 60612, USA.
Mina IskanderDivision of Cardiology, Cook County Health, 1901 W. Harrison St., Chicago, IL, 60612, USA.
Rozi KhanDivision of Cardiology, Rush University Medical Center, Chicago, IL, USA.
Rami DoukkyDivision of Cardiology, Cook County Health, 1901 W. Harrison St., Chicago, IL, 60612, USA. rami_doukky@rush.edu.
Cook County Health and Hospitals System · USRush University Medical Center · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundData on the diagnostic and prognostic value of subtle abnormalities on myocardial perfusion imaging (MPI) are limited. METHODS AND

resultsIn a retrospective single-center cohort of patients who underwent regadenoson SPECT-MPI, near-normal MPI was defined as normal left ventricular ejection fraction (LVEF ≥ 50%) and a summed stress score (SSS) of 1-3 vs SSS = 0 in normal MPI. Borderline ischemia was defined as normal LVEF, SSS = 1-3, and a summed difference score (SDS) of 1 vs SDS = 0 in the absence of ischemia. Coronary angiography data within 6 months from MPI were tabulated. Patients were followed for cardiac death (CD), myocardial infarction (MI), coronary revascularization (CR), and Late CR (LCR) [> 90 days post MPI]. Among 6,802 patients (mean age, 62 ± 13 years; 42% men), followed for a mean of 2.5 ± 2.1 years, 4,398 had normal MPI, 2,404 had near-normal MPI, and 972 had borderline ischemia. Among patients who underwent angiography within 6 months, obstructive (≥ 70% or left main ≥ 50%) CAD was observed at higher rates among subjects with near-normal MPI (33.5% vs 25.5%; P = .049) and those with borderline ischemia (40.5% vs 25.8%; P = .004). During follow-up, 158 (2.3%) CD/MI, 246 (3.6%) CR, and 150 (2.2%) LCR were observed. Near-normal MPI (SSS = 1-3), compared to normal MPI (SSS = 0), was not associated with a significant difference in the risk of the composite endpoint of CD/MI (Hazard ratio [HR], 1.21; 95% confidence interval [CI], .88-1.66; P = .243) or LCR (HR 1.28; CI .93-1.78; P = .130), but was associated with a significant increase in the risk of CR (HR 1.91; CI 1.49-2.46; P < .001). Borderline ischemia (SDS = 1), compared to no ischemia (SDS = 0), was not associated with a significant difference in the risk of CD/MI [HR 1.09; CI .70-1.69; P = .693], but was associated with a significant increase in the risk of CR (HR 5.62; CI 3.08-10.25; P < .001) and LCR (HR 2.98; CI 1.36-6.53; P = .006).

conclusionNear-normal MPI and borderline ischemia on SPECT-MPI provide no significant prognostic information in predicting hard cardiac events but are associated with higher rates of obstructive angiographic CAD and coronary revascularizations.

Indexed as

Coronary Artery DiseaseMyocardial InfarctionMyocardial IschemiaMyocardial Perfusion ImagingAgedExercise TestFemaleHumansMaleMiddle AgedPerfusionPrognosisRetrospective StudiesStroke VolumeTomography, Emission-Computed, Single-PhotonVentricular Function, Leftcoronary angiographycoronary artery diseasediagnosismajor adverse cardiac eventsmyocardial perfusion imaging (MPI)prognosisRegadenoson

Identifiers

PMID33034835
OpenAlexW3091931000

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.