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.
Study Type
OBSERVATIONAL
Enrollment
5,000
Angiography derived index of micro-circulatory resistance (Angio-IMR) post percutaneous coronary intervention.
Second Affiliated Hospital, School of Medicine, Zhejiang University
Hangzhou, Zhejiang, China
Cardiac death or readmission for heart failure in 1 month
Incidence of cardiac death or readmission for heart failure during first 1 month follow-up.
Time frame: 1 month
Cardiac death or readmission for heart failure in 6 months
Incidence of cardiac death or readmission for heart failure during first 6 months follow-up.
Time frame: 6 month
Cardiac death or readmission for heart failure in 1 year
Incidence of cardiac death or readmission for heart failure during first 1 year follow-up.
Time frame: 1 year
Cardiac death or readmission for heart failure in 2 years
Incidence of cardiac death or readmission for heart failure during first 2 years follow-up.
Time frame: 2 year
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