Limitations on primary percutaneous coronary intervention for ST-segment elevation acute myocardial infarction in the clinical practice

Purpose: to assess the non-performance rate of primary PCI in STEMI patients and determine the factors influencing the choice of approach for the management of patients based on Kemerovo Cardiology Clinic's experience in 2012. Material and Methods: 492 patients aged 30 to 92 years, admitted to the MBHI "Kemerovo Cardiology Dispensary" (the Regional Vascular Center in 2012 with a diagnosis of ST-segment elevation myocardial infarction) were included in the single-center prospective registry study. The mean age of patients was 64.42 ± 10.86 years. Results: over 20% of STEMI patients admitted to the Kemerovo Cardiology Dispensary did not undergo emergency coronary angiography (CAG). These patients were older, predominantly female (64%), commonly with repeated MI (44%) and with the presence of renal and myocardial dysfunction. The group of patients, who were not selected for CAG, had significant patient delay between onset of symptoms and hospital admission (9 hours from onset of symptoms to hospital admission in the group of patients who were selected to emergency CAG and 30 hours - in patients who were not selected for CAG). Conclusion: according to the results of the study, we determined a group of patients (up to 20%), who did not receive high-tech medical services because of time delay and had less favorable outcomes after STEMI. Therefore, the development of algorithms is particularly important as they can reduce the time delay in the pre-hospital period, as well as active patient selection for coronary angiography during the in-hospital period.