The independent value and clinical significance of angio-based microvascular resistance in predicting adverse cardiovascular events in patients with acute ST-elevation myocardial infarction

AMR holds independent prognostic value for predicting MACE, with an optimal cutoff of 246.5 mmHg·s/m, facilitating early risk stratification by identifying high-risk patients. Additionally, diabetes, hyperlipidemia, and elevated NT-proBNP levels were significantly associated with an increased risk of MACE. A low postoperative quantitative flow ratio also correlated with a higher MACE risk, further highlighting the impact of coronary blood flow restoration on patient outcomes.