Evidence map›Paper›PMID 31228200›Full record

ArticleEuropean heart journal2020

Myocardial blood flow reserve assessed by positron emission tomography myocardial perfusion imaging identifies patients with a survival benefit from early revascularization.

Krishna K Patel, John A Spertus, Paul S Chan, Brett W Sperry, Firas Al Badarin, Kevin F Kennedy, Randall C Thompson, James A Case, A Iain McGhie, Timothy M Bateman

Abstract read
In one paragraph

Article in European heart journal, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 77 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
77citing papers in PubMed, 2 pooled it
–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

77 citing papers in PubMed, 2 syntheses or guidelines pooled it.

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  12. The REgistry of Flow and Perfusion Imaging for Artificial Intelligence with positron emission tomography (REFINE PET):Rationale and design.Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology · 2025
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  20. Visually assessed ischemia on cardiac magnetic resonance, but not quantitative perfusion metrics, predicts symptomatic improvement in coronary artery bypass.Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance · 2025
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17 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors.

Krishna K PatelDepartment of Cardiology, University of Missouri - Kansas City, Kansas City, MO 64111, USA.
John A SpertusDepartment of Cardiology, University of Missouri - Kansas City, Kansas City, MO 64111, USA.
Paul S ChanDepartment of Cardiology, University of Missouri - Kansas City, Kansas City, MO 64111, USA.
Brett W SperryDepartment of Cardiology, University of Missouri - Kansas City, Kansas City, MO 64111, USA.
Firas Al BadarinDepartment of Cardiology, University of Missouri - Kansas City, Kansas City, MO 64111, USA.
Kevin F KennedySaint Luke's Mid America Heart Institute, 4401 Wornall Rd, 9th floor CV Research, Kansas City, MO 64111, USA.
Randall C ThompsonDepartment of Cardiology, University of Missouri - Kansas City, Kansas City, MO 64111, USA.
James A CaseCardiovascular Imaging Technologies, Kansas City, MO, USA.
A Iain McGhieDepartment of Cardiology, University of Missouri - Kansas City, Kansas City, MO 64111, USA.
Timothy M BatemanDepartment of Cardiology, University of Missouri - Kansas City, Kansas City, MO 64111, USA.

Funding

CARDIOVASCULAR OUTCOMES RESEARCH TRAINING PROGRAMT32HL110837 · NHLBI · UNIVERSITY OF MISSOURI KANSAS CITY · PI JOHN A SPERTUS · 2012 to 2026
$5.0M
NHLBI NIH HHS T32 HL110837
6 · The paper itself

Abstract

aimsPositron emission tomography (PET) myocardial perfusion imaging (MPI) can non-invasively measure myocardial blood flow reserve (MBFR). We aimed to examine whether MBFR identifies patients with a survival benefit after revascularization, helping to guide post-test management. METHODS AND

resultsWe examined all-cause mortality in 12 594 consecutive patients undergoing Rb82 rest/stress PET MPI from January 2010 to December 2016, after excluding those with cardiomyopathy, prior coronary artery bypass surgery (CABG), and missing MBFR. Myocardial blood flow reserve was calculated as the ratio of stress to rest absolute myocardial blood flow. A Cox model adjusted for patient and test characteristics, early revascularization (percutaneous coronary intervention or CABG ≤90 days of MPI), and the interaction between MBFR and early revascularization was developed to identify predictors of all-cause mortality. After a median follow-up of 3.2 years, 897 patients (7.1%) underwent early revascularization and 1699 patients (13.5%) died. Ischaemia was present in 4051 (32.3%) patients, with 1413 (11.2%) having ≥10% ischaemia. Mean MBFR was 2.0 ± 1.3, with MBFR <1.8 in 4836 (38.5%). After multivariable adjustment, every 0.1 unit decrease in MBFR was associated with 9% greater hazard of all-cause death (hazard ratio 1.09, 95% confidence interval 1.08-1.10; P < 0.001). There was a significant interaction between MBFR and early revascularization (P < 0.001); such that patients with MBFR ≤1.8 had a survival benefit with early revascularization, regardless of type of revascularization or level of ischaemia.

conclusionMyocardial blood flow reserve on PET MPI is associated with all-cause mortality and can identify patients who receive a survival benefit with early revascularization compared to medical therapy. This may be used to guide revascularization, and prospective validation is needed.

Indexed as

Coronary Artery DiseaseMyocardial Perfusion ImagingPercutaneous Coronary InterventionCoronary Artery BypassHumansMyocardial RevascularizationPositron-Emission TomographyProspective StudiesMyocardial blood flow reserveMyocardial perfusion imagingPositron emission tomographySurvival

Identifiers

PMID31228200
PMCPMC7828468

What OpenQuestion holds

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Registered trials

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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.