b'Scientific Session Abstracts SUNDAY APRIL 21, 2024 Conclusion: This multicenter study reveals critical insights into the impact of in-hospital major adverse events on one-year survival following carotid revascularization. The analysis indicates a significant increase in the hazards of one-year mortality following in-hospital stroke and MI. In patients who developed in-hospital stroke or MI, there was no significant difference in one-year survival between TCAR and CEA. On the contrary, TFCAS was associated with significant higher mortality compared to CEA indicating worse stroke or MI initially. On the other hand, TCAR was associated with better survival compared to TFCAS. The study highlights the importance of appropriate revascularization method selection to improve one-year survival.Kaplain-Meier survival estimates following in-hospital strokeKaplain-Meier survival estimates following in-hospital MI92SOUTHERN CALIFORNIA VASCULAR SURGICAL SOCIETY'