Postoperative adverse cardiac events in acute myocardial infarction with high thrombus load and best time for stent implantation

BACKGROUND: Myocardial infarction is one of the most common types of coronary heart disease. It is mainly caused by the rupture of coronary atherosclerotic plaque, which leads to platelet agglutination and thrombosis. The occlusion of coronary arteries and vessels leads to insufficient myocardial blood supply, subsequently causing cardiac interstitial fibrosis, gradual enlargement of ventricles, and heart failure, which affects the quality of life and safety of patients. AIM: To investigate the effects of emergency percutaneous interventional therapy (PCI) and delayed stenting in acute myocardial infarction with high thrombotic load and identify factors related to major adverse cardiovascular events (MACE). METHODS: A total of 164 patients with acute myocardial infarction and high thrombotic load who received PCI were included. Of them, 92 patients were treated with delayed stent implantation (delayed group) and 72 patients received emergency PCI (immediate group). Myocardial perfusion after stent implantation was compared between the two groups. Patients were followed up for 12 mo, and the occurrence of MACE was used as the endpoint. Univariate and multivariate models were used to analyze the factors affecting MACE occurrence. RESULTS: < 0.05). CONCLUSION: Delayed stent implantation outweighs emergency PCI in improving postoperative myocardial perfusion in acute myocardial infarction with high thrombotic load, and effectively reduces MACE in these patients.