Evidence map›Paper›PMID 42178140›Full record

Observational studyDiabetes, obesity & metabolism2026

Prognostic Implications of Coronary Microvascular Dysfunction in ST-Elevation Myocardial Infarction by Obesity Status.

Qian Guo, Yingying Guo, Shutian Shi, Hui Wang, Bin Que, Shaoping Nie, Lei Xu, Deyong Long, Xiao Wang

Abstract readMulticenter StudyObservational Study
In one paragraph

Observational study in Diabetes, obesity & metabolism, 2026. 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. Observational
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

9 authors.

Qian GuoDivision of Cardiology, Beijing Anzhen Hospital, National Clinical Research Center for Cardiovascular Diseases, Capital Medical University, Beijing, China.ORCID 0000-0002-8377-2633
Yingying GuoCardiometabolic Medicine Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
Shutian ShiDivision of Cardiology, Beijing Anzhen Hospital, National Clinical Research Center for Cardiovascular Diseases, Capital Medical University, Beijing, China.
Hui WangDepartment of Radiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China.
Bin QueDivision of Cardiology, Beijing Anzhen Hospital, National Clinical Research Center for Cardiovascular Diseases, Capital Medical University, Beijing, China.
Shaoping NieDivision of Cardiology, Beijing Anzhen Hospital, National Clinical Research Center for Cardiovascular Diseases, Capital Medical University, Beijing, China.
Lei XuDepartment of Radiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China.ORCID 0000-0002-8499-0448
Deyong LongDivision of Cardiology, Beijing Anzhen Hospital, National Clinical Research Center for Cardiovascular Diseases, Capital Medical University, Beijing, China.
Xiao WangCardiometabolic Medicine Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.

Funding

Beijing Municipal Natural Science Foundation Grant JQ24039CAMS Innovation Fund for Medical Sciences 2024-I2M-3-020National Natural Science Foundation of China 82470339Noncommunicable Chronic Diseases-National Science and Technology Major Project 2025ZD0548201
6 · The paper itself

Abstract

aimsThis study aimed to assess the association of coronary microvascular dysfunction (CMD) assessed by the angiography-derived index of microcirculatory resistance (angio-IMR) with long-term cardiovascular outcomes in ST-elevation myocardial infarction (STEMI) patients stratified by obesity categories. MATERIALS AND

methodsIn this multicentre prospective cohort, STEMI patients undergoing primary percutaneous coronary intervention (PPCI) were enrolled. Patients were stratified by obesity categories (healthy weight: BMI < 24 kg/m

resultsOf 497 STEMI patients, CMD prevalence was comparable across BMI groups (p = 0.875). The cumulative incidence of MACCE was significantly higher in the CMD group than in the non-CMD group among patients with obesity (33.3% vs. 15.0%, log-rank p = 0.016), but not among those with overweight (19.6% vs. 15.9%, log-rank p = 0.565) and healthy weight (20.7% vs. 17.4%, log-rank p = 0.673). CMD independently predicted MACCE in obesity (adjusted HR; p = 0.020), with consistent results for continuous angio-IMR (adjusted HR 1.03, p < 0.001). No associations existed in patients with overweight or healthy weight. Additionally, CMD was associated with a higher prevalence of intramyocardial haemorrhage exclusively in obesity (adjusted OR 4.40, p = 0.003) and overweight (adjusted OR 2.65, p = 0.007).

conclusionCMD assessed by angio-IMR is an independent predictor of MACCE in STEMI patients with obesity, but not those without obesity. Patients with obesity and STEMI who have CMD may represent a high-risk subgroup for future trials of microvascular-protective therapies.

Indexed as

Coronary VesselsMicrocirculationObesityST Elevation Myocardial InfarctionAgedBody Mass IndexCoronary AngiographyCoronary CirculationFemaleHumansMaleMiddle AgedPercutaneous Coronary InterventionPrognosisProspective StudiesRisk Factorsangiography‐derived index of microcirculatory resistancecardiovascular magnetic resonancecoronary microvascular dysfunctionmyocardial infarctionobesityoverweight

Identifiers

PMID42178140
PMCPMC13341356

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.