Background: Data regarding the effects of intraprocedural thrombotic events (IPTE) are scarce. Hence we aim to perform a meta-analysis to examine the outcomes of IPTE compared to non-IPTE during PCI.
Methods: We performed a literature search of all published full-length articles of studies that reported data on patients with IPTE compared with non-IPTE during PCI. We calculated odd ratios via random effects model.
Results: A total of 26,697 patients, of which 1572 patients had IPTE, were included in this analysis. In-hospital, IPTE was associated with higher mortality (odds ratio (OR) 5.36, 95% confidence interval (CI) [2.31, 12.41]; p<0.0001), myocardial infarction (MI) and major bleeding compared to non-IPTE. At 30 days, IPTE was also associated with higher mortality (OR 4.57, 95% CI [2.43, 8.60]; p<0.0001), MI, repeat revascularization, stent thrombosis and major bleeding compared to non-IPTE group. IPTE was also associated with higher long-term mortality (OR 2.19, 95% CI [1.35, 3.53]; p=0.001). Among IPTE patients, intraprocedural stent thrombosis was associated with greater odds of MI compared to both no reflow and distal embolization events.
Conclusion: IPTE during PCI is associated with more adverse ischemic events, including mortality, during the index hospitalization, at 30 days and long-term.
Keywords: Distal embolization; Intraprocedural thrombotic events; No reflow; PCI.
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