Evidence map›Paper›PMID 37012523›Full record

ArticleJournal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology2023

Interaction of impaired myocardial flow reserve and extent of myocardial ischemia assessed using

Shiro Miura, Atsutaka Okizaki, Hiraku Kumamaru, Osamu Manabe, Masanao Naya, Chihoko Miyazaki, Takehiro Yamashita

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Article in Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors.

Shiro MiuraDepartment of Cardiology, Hokkaido Ohno Memorial Hospital, 2-1-16-1 Miyanosawa, Nishi-Ku, Sapporo, 063-0052, Japan. shirotan1027m@yahoo.co.jp.
Atsutaka OkizakiDepartment of Radiology, Asahikawa Medical University, Asahikawa, Hokkaido, Japan.
Hiraku KumamaruDepartment of Healthcare Quality Assessment, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
Osamu ManabeDepartment of Radiology, Saitama Medical Center, Jichi Medical University, Saitama-Shi, Japan.
Masanao NayaDepartment of Cardiovascular Medicine, Hokkaido, University Graduate School of Medicine, Sapporo, Japan.
Chihoko MiyazakiDepartment of Diagnostic Radiology, Hokkaido Ohno Memorial Hospital, Sapporo, Japan.
Takehiro YamashitaDepartment of Cardiology, Hokkaido Ohno Memorial Hospital, 2-1-16-1 Miyanosawa, Nishi-Ku, Sapporo, 063-0052, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMyocardial flow reserve (MFR) and the extent of myocardial ischemia identify patients at high risk of major adverse cardiovascular events (MACEs). Associations between positron emission tomography (PET)-assessed extent of ischemia, MFR, and MACEs is unclear.

methodOverall, 640 consecutive patients with suspected or known coronary artery disease undergoing

resultsCardiovascular death and MACEs occurred in 17 (3%) and 93 (15%) patients, respectively. Following statistical adjustment for confounding factors, impaired MFR (global MFR < 2.0) was revealed as an independent predictor of MACEs in Groups I (hazard ratio [HR], 2.89; 95% confidence interval [CI], 1.48-5.64; P = 0.002) and II (HR, 3.40; 95% CI 1.37-8.41; P = 0.008) but was not significant in Group III (HR, 1.15; 95% CI 0.59-2.26; P = 0.67), with a significant interaction (P < 0.0001) between the extent of myocardial ischemia and MFR.

conclusionImpaired MFR was significantly associated with increased risk of MACEs in patients with ≤ 10% myocardial ischemia but not with those having > 10% ischemia, allowing a clinically effective risk stratification.

Indexed as

Coronary Artery DiseaseFractional Flow Reserve, MyocardialMyocardial IschemiaMyocardial Perfusion ImagingAmmoniaCoronary CirculationHumansIschemiaPositron-Emission TomographyAmmoniaCoronary artery diseaseMyocardial flow reserveMyocardial ischemia

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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.