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Effect of severe contralateral carotid stenosis or occlusion on early and late outcomes after carotid endarterectomy.

ABSTRACT: Purpose:We aimed to compare clinical outcomes after carotid endarterectomy (CEA) between Korean patients with and without severe contralateral extracranial carotid stenosis or occlusion (SCSO). Methods:Between January 2004 and December 2014, a total of 661 patients who underwent 731 CEAs were stratified by SCSO (non-SCSO and SCSO groups) and analyzed retrospectively. The study outcomes included the occurrence of major adverse cardiovascular events (MACE), defined as stroke or myocardial infarction, and all-cause mortality during the perioperative period and within 4 years after CEA. Results:There were no significant differences in the incidence of MACE or any individual MACE manifestations between the 2 groups during the perioperative period or within 4 years after CEA. On multivariate analysis to identify clinical variables associated with long-term study outcomes, older age (hazard ratios [HRs], 1.06; 95% confidence intervals [CIs], 1.03-1.09; P < 0.001) and diabetes mellitus (HR, 1.71; 95% CI, 1.14-2.57; P = 0.010) were significantly associated with an increased risk of MACE occurrence, while preexisting SCSO was not associated with long-term incidence of MACE and individual MACE components. Kaplan-Meier survival analysis showed similar MACE-free (P = 0.509), overall (P = 0.642), and stroke-free (P = 0.650) survival rates in the 2 groups. Conclusion:There were no significant differences in MACE incidence after CEA between the non-SCSO and SCSO groups, and preexisting SCSO was not associated with an increased risk of perioperative or long-term MACE occurrence.

PROVIDER: S-EPMC6779950 | BioStudies |

REPOSITORIES: biostudies

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