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Changes in high-sensitivity troponin after drug-coated balloon angioplasty for drug-eluting stent restenosis In-Hospital Costs and Costs of Complications of Chronic Total Occlusion Angioplasty Insights From the OPEN-CTO Registry Improving the Design of Future PCI Trials for Stable Coronary Artery Disease: JACC State-of-the-Art Review Cholesterol-Lowering Agents 2-year outcomes with the Absorb bioresorbable scaffold for treatment of coronary artery disease: a systematic review and meta-analysis of seven randomised trials with an individual patient data substudy sST2 Predicts Outcome in Chronic Heart Failure Beyond NT−proBNP and High-Sensitivity Troponin T Home-Based Cardiac Rehabilitation: A Scientific Statement From the American Association of Cardiovascular and Pulmonary Rehabilitation, the American Heart Association, and the American College of Cardiology Cardiorespiratory Fitness and Mortality in Healthy Men and Women SGLT2 Inhibitors in Patients With Heart Failure With Reduced Ejection Fraction: A Meta-Analysis of the EMPEROR-Reduced and DAPA-HF Trials Chronic Kidney Disease and Coronary Artery Disease

Review ArticleVolume 12, Issue 10, May 2019

JOURNAL:JACC Cardiovasc Interv. Article Link

The Potential Use of the Index of Microcirculatory Resistance to Guide Stratification of Patients for Adjunctive Therapy in Acute Myocardial Infarction

Maznyczka AM, Oldroyd KG, Berry C et al. Keywords: ST-segment elevation myocardial; adjunctive therapy; index of microcirculatory resistance; infarction; microvascular obstruction; stratified medicine

ABSTRACT


The goal of reperfusion therapies in ST-segment elevation myocardial infarction has evolved to include effective reperfusion of the microcirculation subtended by the culprit epicardial coronary artery. The index of microcirculatory resistance is measured using a pressure- and temperature-sensing coronary guidewire and quantifies microvascular dysfunction. The index of microcirculatory resistance is an independent predictor of microvascular obstruction, infarct size, and adverse clinical outcomes. It has the advantage of being immediately measurable in the catheterization laboratory, before the results of blood biomarkers or noninvasive imaging become available. This provides an opportunity for additional intervention that may alter outcomes. In this review, the authors provide a critical appraisal of the published research on the emerging role of the index of microcirculatory resistance as a tool to guide the stratification of patients for adjunctive therapeutic strategies in acute ST-segment elevation myocardial infarction.


Copyright © 2019. Published by Elsevier Inc.