Outcomes of Primary Percutaneous Intervention for ST-Segment Elevation Myocardial Infarction With Versus Without Spontaneous Coronary Artery Dissection.

Abstract

Spontaneous coronary artery dissection (SCAD) is an increasingly recognized cause of acute coronary syndrome, but there is no clear consensus on the choice and timing of revascularization strategy. Recent data from outside the United States suggested similar inpatient mortality after primary percutaneous coronary interventions (PPCI) in patients presenting with ST-elevation myocardial infarction (STEMI) secondary to SCAD versus non-SCAD. Utilizing similar methodologies in a contemporary US cohort, we found that SCAD patients had higher inpatient mortality after PPCI for STEMI compared with non-SCAD patients. We also found that the SCAD group had prolonged hospitalization and hospitalization costs compared with on-SCAD patients. Furthermore, these trends have not changed over the past 5 years. Our findings reiterate the need for continued discussion and research on the role and timing of PPCI in SCAD-STEMI patients in well-designed prospective cohorts.