Differences in Perioperative Outcomes after Carotid Revascularization between White and Non-white Patients
Christina L Cui1, Kevin S Yei1, Claire B Janssen1
1University of California San Diego, La Jolla, CA.
Background:
Racial disparities in carotid endarterectomy (CEA) and carotid artery stenting (CAS) continue to persist. We aimed to provide a large-scale analysis of racial disparities in perioperative outcomes of carotid revascularization in a nationally representative cohort of patients, with sub-analyses stratifying by procedure type and symptomatic status.
Methods:
We studied all patients undergoing carotid revascularization between 2011 and 2018 in the American College of Surgeons (ACS) National Surgical Quality Improvement Program (NSQIP) Database. Univariate methods were used to compare patients' demographic and medical characteristics. Multivariable logistic regression analysis was used to compare adjusted perioperative outcomes between white patients (WP) and non-white patients (NWP). Sub-analysis was performed stratifying by method of revascularization and symptomatic status.
Results:
A total of 31,356 carotid revascularizations were performed in 26,550 (84.7%) white patients and 4,806 (15.3%) non-white patients. On adjusted analysis, NWP had increased odds of stroke (OR:1.2, 95%CI:1.1-1.5, P = 0.0496), unplanned return to the OR (OR:1.4, 95%CI:1.1-1.6, P < 0.001) and restenosis (OR:2.6, 95%CI:1.7-3.9, P < 0.001). On sub-analysis, NWP undergoing CAS had increased odds of stroke/death (OR:2.2, 95%CI:1.1-4.3, P = 0.025), stroke (OR:2.9, 95%CI:1.3-6.0, P = 0.007), and stroke/TIA (OR:2.1, 95%CI:1.0-4.2, P = 0.025). NWP undergoing CEA had increased odds of unplanned return to the OR (OR:1.4, 95%CI:1.2-1.6, P < 0.001) and restenosis (OR:2.7, 95%CI:1.7-4.0, P < 0.001).
Conclusion:
NWP had higher rates of 30-day stroke, driven primarily by higher rates of perioperative stroke/death in NWP undergoing CAS. NWP undergoing CEA did not have higher rates of stroke/death after adjusted analysis, although they had higher rates of unplanned return to OR and restenosis. Upon stratification for symptomatic status, the stroke/death rate between NWP and WP was shown to be non-significant.
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