Background: The study aims to assess real-life short- and long-term outcomes of patients undergoing primary percutaneous coronary intervention (PCI) for ST-segment elevation myocardial infarction (STEMI) complicated with cardiogenic shock (CS). Outcome after left main (LM) PCI is of particular interest.
Methods: Procedural, 30-day, and >30-day mortality rates were assessed in 2744 CS-STEMI patients enrolled between 2012 and 2019 in a nationwide registry involving 49 centers.
Results: Procedural, 30-day, and >30-day mortality rates were 6.9%, 39.8%, and 12.6%, respectively. The mortality rates were significantly higher in the 348 patients (12.7%) who underwent LM-PCI (13.5%, 59.5%, and 18.4%, respectively). LM-PCI, a suboptimal PCI result, and transfemoral access were independent predictors of procedural and 30-day mortality. Operator experience was an independent predictor of procedural mortality, but not 30-day mortality.
Conclusions: Mortality remains high in CS-STEMI patients, especially within the first month. Patients undergoing LM-PCI are particularly at risk. Operator experience is predictive of procedural mortality.
Keywords: cardiogenic shock; mortality; myocardial infarction.