Background: Pre-infarction unstable angina pectoris (UAP) can be considered ischemic preconditioning. The aim of this study was to compare short and long term outcomes in patients with or without pre-infarction UAP and ST elevation myocardial infarction (STEMI) treated with primary percutaneous coronary intervention (PCI). Methods: 593 patients with STEMI (388 without and 205 with UAP... https://allfixelectricales.shop/product-category/splice-crimp-connector/