Clinical outcomes of immediate complete versus staged revascularization among STEMI patients and multivessel disease without cardiogenic shock: a meta-analysis

Abstract Introduction Multivessel disease in STEMI patients uncomplicated by cardiogenic shock is associated with adverse prognosis and recent evidence support complete revascularization in these patients. However, the optimal timing of non-culprit lesion revascularization is still debated. Methods A literature search from PubMed, Cochrane and Embase databases for relevant RCTs published until December 2023 were conducted. The main outcomes of interests were all-cause mortality, re-infarction, and target vessel revascularization. Results The search yielded 4 randomized controlled trials and the total number of patients included was 1,137 (immediate complete = 571; staged revascularization = 566). Our pooled estimated showed that immediate complete revascularization in STEMI patients and multivessel disease without cardiogenic shock, compared to staged revascularization, was associated with lower rates of re-infarction (OR 0.51, 95% CI 0.27 – 0.98, p < 0.04, I2=22%) and target vessel revascularization (OR 0.54, 95% CI 0.33 – 0.87. p = 0.01, I2=21%), with no significant difference in terms of all-cause mortality (OR 1.22, 95% CI 0.69-2.16, p <0.5, I2=0%). Conclusion In STEMI patients and multivessel disease without cardiogenic shock, immediate complete revascularization is associated with better outcomes in terms of reducing the rate of reinfarction and target vessel revascularization, while there was no significant difference in the outcomes of all-cause mortality between the two groups. These results challenge the current guidelines which favors staged PCI than an immediate complete revascularization approach.Abstract summary poster