Revascularization Strategies in ST-Segment Elevation Myocardial Infarction With Multivessel Disease: Temporal Trends, Patient Profiles, and Outcomes.

BACKGROUND

Randomized trials support angiographic and physiology-guided complete revascularization (CR) vs incomplete revascularization (IR) in ST-segment elevation myocardial infarction (STEMI) with multivessel disease (MVD). The implementation of these strategies in clinical practice is uncertain.

OBJECTIVES

In patients undergoing percutaneous coronary intervention for STEMI with MVD, we assessed temporal trends in the utilization of different revascularization strategies and associated outcomes.

METHODS

We included 20,131 patients from the SWEDEHEART (Swedish Web-system for Enhancement and Development of Evidence-based care in Heart disease Evaluated According to Recommended Therapies) registry who underwent primary percutaneous coronary intervention for STEMI with MVD between 2009 and 2021. Primary outcome was a composite of all-cause mortality, myocardial infarction, or unplanned revascularization, landmarked at 90 days postindex to account for staged procedures during this time.

RESULTS

We observed increased adoption of CR (2009: 33% [n = 397 of 1,217]; 2015: 46% [n = 767 of 1,658]; 2021: 51% [n = 816 of 1,603]; P-trend < 0.001) and physiology-guided CR (2009: 0% [n = 0 of 1,217]; 2015: 7% [n = 119 of 1,658]; 2021: 14% [n = 218 of 1,603]; P-trend < 0.001). Over a median follow-up of 4.2 years (Q1-Q3: 1.8-7.1 years), the adjusted risk of a primary event was lower with angiographic CR vs IR (adjusted HR [aHR]: 0.84, 95% CI: 0.79-0.89) and physiology-guided CR vs IR (aHR: 0.80, 95% CI: 0.69-0.93) but not physiology-guided CR vs angiographic CR (aHR: 0.94, 95% CI: 0.80-1.11).

CONCLUSIONS

In patients with STEMI and MVD, the implementation of CR and physiology-guided procedures increased over time. As of 2021, 51% of patients underwent CR and 14% physiology-guided CR. CR, whether angiographically or physiology guided, was independently associated with favorable outcomes, including mortality.