A large retrospective analysis published in The American Journal of Cardiology found that early PCI after coronary artery bypass graft (CABG)–related cardiogenic shock was associated with lower short-term mortality and fewer cardiovascular events.

The study evaluated 218,827 adults with myocardial infarction and cardiogenic shock during the index hospitalization. Among them, 22,762 underwent PCI within 24 hours. Using propensity score matching and Fine–Gray competing-risk models, investigators compared 30-day mortality and cardiovascular outcomes between PCI and non-PCI groups.

Patients who received PCI had lower rates of all-cause mortality (4.5% vs. 5.7%), recurrent myocardial infarction (5.0% vs. 7.0%), stroke (2.5% vs. 5.0%), heart failure (15.0% vs. 28.0%), and all-cause hospitalization (20.0% vs. 28.0%). A falsification endpoint using bone fracture showed no association, confirming the validity of the results.

Landmark analysis demonstrated consistent mortality reductions whether PCI was performed within 12 hours or between 12–24 hours. These findings suggest that early PCI may improve 30-day outcomes after CABG-related cardiogenic shock, although prospective trials are needed for confirmation.