Angiography Derived Index of Microcirculatory Resistance in Patients With Acute Myocardial Infarction

Conditions

Acute Myocardial Infarction (AMI)

Brief summary

Coronary microcirculatory dysfunction has been known to be prevalent even after successful revascularization of acute myocardial infarction (AMI) patients, and has been shown to be associated with poor prognosis. Angiography derived index of micro-circulatory resistance (Angio-IMR) is a novel pressure-wire free approach to assess coronary microvascular disease with great diagnostic performance. The current study will further investigate the prognostic value of Angio-IMR in patients with AMI in multicenter retrospective cohort.

Chen Z, Zhang Y, Fang J, Zheng Y, Chen D, Yidilisi A, Zhang X, Liu C, Huang J, Ji R, Chen J, Chen G, Lin P, Hu Y, Xiang J, Wang J, Jiang J.

2025-09-062 citations

10.1007/s10557-025-07768-0

Combined risk estimates of diabetes and coronary angiography-derived index of microcirculatory resistance in patients with non-ST elevation myocardial infarction.

Chen D, Zhang Y, Yidilisi A, Hu D, Zheng Y, Fang J, Gong Q, Huang J, Dong Q, Pu J, Niu T, Xiang J, Wang J, Jiang J.

2024-08-164 citations

10.1186/s12933-024-02400-1

Prognostic Value of Coronary Angiography–Derived Index of Microcirculatory Resistance in Non–ST-Segment Elevation Myocardial Infarction Patients

Yuxuan Zhang, Jun Pu, Tiesheng Niu, Jiacheng Fang, Delong Chen et al. (13 authors)

JACC: Cardiovascular Interventions2024-08-0124 citations

10.1016/j.jcin.2024.04.048

Interventions

OTHERAngiography derived index of micro-circulatory resistance (Angio-IMR)

Angiography derived index of micro-circulatory resistance (Angio-IMR) post percutaneous coronary intervention.

Study design

Observational model

COHORT

Time perspective

RETROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

18 Years to No maximum

Healthy volunteers

No

Inclusion criteria

* Acute myocardial infarction patients who underwent successful percutaneous coronary intervention

Exclusion criteria

* No appropriate coronary angiography images (inferior image quality, image loss, severe arteries overlap, or significant artifact) * Previous coronary artery bypass graft

Design outcomes

Primary

Measure	Time frame	Description
Cardiac death or readmission for heart failure in 1 month	1 month	Incidence of cardiac death or readmission for heart failure during first 1 month follow-up.
Cardiac death or readmission for heart failure in 6 months	6 month	Incidence of cardiac death or readmission for heart failure during first 6 months follow-up.
Cardiac death or readmission for heart failure in 1 year	1 year	Incidence of cardiac death or readmission for heart failure during first 1 year follow-up.
Cardiac death or readmission for heart failure in 2 years	2 year	Incidence of cardiac death or readmission for heart failure during first 2 years follow-up.

Countries

China

Outcome results

None listed