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Prognostic Value of the AMR Measured After PPCI in STEMI Patients

Prognostic Value of the Angio-based Microvascular Resistance Use One Single Angiographic View Measured After Primary Percutaneous Coronary Intervention in ST-segment Elevation Myocardial Infarction Patients

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT05653765
Acronym
EARLYMYOAMR
Enrollment
2663
Registered
2022-12-16
Start date
2022-12-20
Completion date
2025-03-20
Last updated
2025-03-17

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Coronary Heart Disease, ST Elevation Myocardial Infarction

Brief summary

The goal of this observational study is to learn about in STEMI with Primary PCI Patients. The main questions it aims to answer are: * To determine the value of AMR in predicting the long-term clinical prognosis of patients with STEMI after PPCI, and to find the best cut-off value. * Analyze the factors of PPCI affecting AMR and explore the effective measures of PPCI microcirculation protection. Radiographic images of STEMI receiving primary PCI treatment in several chest pain centers in China will be included. The last image of the infarct-related vessel will be used as a target to calculate its AMR. The relationship between AMR and long-term clinical prognosis was analyzed.

Interventions

None listed

Sponsors

Henan Institute of Cardiovascular Epidemiology
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
RETROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Aged 18 or older * Type 1 myocardial infarction * Receive PPCI

Exclusion criteria

* Failed to identify culprit vessels. * Structural heart disease with moderate to severe aortic valve or mitral regurgitation and or stenosis that may affect cardiac function * Dialysis patients with severe renal insufficiency * Severe and uncontrollable arrhythmia * Complicated with dilated cardiomyopathy * Unable to tolerate dual antiplatelet therapy * Severe and uncontrollable anemia * Hyperthyroidism * TIMI blood flow 0-1 grade after PPCI

Design outcomes

Primary

MeasureTime frameDescription
MACEs12 monthscardiac death, hospitalization for heart failure, target vessel revascularization,non-fatal MI

Secondary

MeasureTime frameDescription
cardiac death12 monthsAll cause deaths will be considered cardiac unless a definite noncardiac cause can be established.
hospitalization for heart failure12 monthsHospitalization for heart failure was defined as admission because of new or deteriorating signs and symptoms of heart failure combined with the findings of noninvasive imaging or elevated B-type natriuretic peptide(BNP) and/or N-terminal pro-BNP concentration, and a discharge diagnosis of congestive heart failure.
target lesion revascularization12 monthsThe following 3 conditions need to be met at the same time: 1. The new stenosis that developed within previously treated coronary segments and within 5 mm of their borders; 2. The new stenosis resulted in the vessel μQFR ≤ 0.80; 3. The patient subsequently underwent repeat PCI or coronary artery bypass grafting (CABG).
Repeated myocardial infarction12 monthsRepeated myocardial infarction

Countries

China

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026