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Relationship between the degree of target vessel occlusion and the in-hospital mortality in patients with acute ST-elevated myocardial infarction

This paper is available in a repository.
This paper is available in a repository.

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Abstract

Objective To explore the correlation between the degree of target vessel occlusion and in-hospital mortality in patients with acute ST-elevated myocardial infarction (STEMI) undergoing percutaneous coronary intervention (PCI). Methods To retrospectively analyze the data collected from the Management System of Cardiovascular Interventional Treatment in Military Hospitals. A total of 8170 patients with STEMI and PCI were enrolled, and the endpoint of present study was in-hospital mortality. The degree of target vessel occlusion were stratified to determine the effects of occlusion degree on in-hospital mortality. Results According to the degree of target vessel occlusion, the enrolled patients were divided into 2 groups: 75%-99% occlusion group and 100% occlusion group. The in-hospital mortality in the 2 groups were 2.2% and 3.0%, respectively (P=0.077). The patients were then further divided into 3 groups according to the symptom-onset-to-balloon time