Key result
Post-primary PCI angio-IMR predicts myocardial infarct size and microvascular obstruction in STEMI patients.
Why the study?
Coronary microvascular dysfunction is associated with adverse cardiovascular events after acute myocardial infarction, prompting evaluation of angiography-derived index of microcirculatory resistance (angio-IMR) for predicting myocardial damage.
Does post-PCI angio-IMR predict myocardial infarct size and microvascular obstruction in patients with STEMI?
Does post-PCI angio-IMR predict myocardial infarct size and microvascular obstruction in patients with STEMI?
Post-PCI angio-IMR serves as an independent predictor of infarct size and microvascular obstruction in STEMI patients, suggesting its utility in assessing residual myocardial damage.
Background: Coronary microvascular dysfunction has been associated with adverse cardiovascular events following acute myocardial infarction. This study evaluates the role of the angiography-derived index of microcirculatory resistance (angio-IMR) in predicting myocardial damage in patients with ST-segment-elevation myocardial infarction undergoing primary percutaneous coronary intervention (PCI). Conclusions: In patients with ST-segment-elevation myocardial infarction, post-PCI angio-IMR was identified as independent predictor of myocardial infarct size and extent of microvascular obstruction. Registration: URL: https://clinicaltrials.gov; Unique Identifier: NCT01529554.
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Candreva et al. (2025) studied this question. Post-primary PCI angio-IMR independently predicts myocardial infarct size and microvascular obstruction in STEMI patients.
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