Culprit-Only vs. Complete Revascularization During ST-Segment Elevation Myocardial Infarction

Area of Science:

• Cardiology
• Interventional Cardiology
• Acute Coronary Syndromes

Background:

• ST-segment elevation myocardial infarction (STEMI) patients often have multivessel disease with non-culprit lesions.
• Current guidelines generally do not recommend routine revascularization of these non-culprit lesions.
• Previous studies on revascularization strategies in STEMI with multivessel disease have yielded conflicting results.

Purpose of the Study:

• To evaluate the optimal revascularization strategy for STEMI patients with obstructive non-culprit lesions.
• To assess the impact of complete revascularization versus culprit-lesion-only revascularization on major adverse cardiac events.
• To determine the ideal timing for staged revascularization procedures.

Main Methods:

• Review of recent randomized controlled trials (RCTs) including PRAMI, CvLPRIT, and DANAMI-3-PRIMULTI.
• Analysis of data from observational studies and smaller RCTs.
• Focus on STEMI patients undergoing primary percutaneous coronary intervention (PCI) with multivessel disease.

Main Results:

• Recent RCTs suggest a potential benefit of complete revascularization in STEMI patients with non-culprit lesions.
• Conflicting results exist from prior smaller studies.
• Further large-scale RCT data are required to definitively establish benefits and optimal timing.

Conclusions:

• Complete revascularization may be beneficial for select STEMI patients with multivessel disease and non-culprit lesions.
• A personalized approach is currently recommended for revascularization strategy.
• More robust evidence from large RCTs is necessary to guide definitive treatment guidelines.