Anatomical Predispositions for Silent Cerebral Infarction Postcarotid Artery Stenting: a Retrospective Cohort

Overview

Journal Int J Surg

Specialty General Surgery

Date 2024 Jun 19

PMID 38896855

Authors

Tianhua Li

Renjie Yang

Jie Wang

Tao Wang

Guangjie Liu

Jiaqi Jin

Xuesong Bai

Ran Xu

Taoyuan Lu

Yabing Wang

Adam A Dmytriw

Bin Yang

Liqun Jiao

Affiliations

Soon will be listed here.

Abstract

Background: Silent cerebral infarction (SCI) that manifests following carotid artery stenting (CAS) has been postulated to correlate with cognitive decline, the onset of dementia, and an increased risk of subsequent cerebrovascular events. This investigation aimed to thoroughly examine the potential anatomical predispositions that are linked to the occurrence of SCI post-CAS, and further develop a predictive nomogram that could accurately forecast the risk of SCI post-CAS.

Methods: The present investigation conducted a retrospective examination of datasets from 250 individuals presenting with carotid artery stenosis who had been subjected to CAS within a tertiary healthcare institution from June 2020 to November 2021. Stratified by the procedural date, participants were allocated into a training cohort and a validation cohort. A nomogram was constructed predicated on salient prognostic determinants discerned via a multivariate logistic regression analysis.

Results: An aggregate of 184 patients were incorporated into the study, of which 60 (32.6%) manifested SCI, whereas 124 (67.4%) did not. Within the training cohort ( n =123), age (OR 1.08, 95% CI: 1.01-1.16; P =0.034), aortic arch type (Type III vs. I: OR 10.79, 95% CI: 2.12-54.81; P =0.005), aortic arch variant (OR 47.71, 95% CI: 6.05-376.09; P <0.001), common carotid artery (CCA) ostium lesions (OR 6.93, 95% CI: 1.49-32.32; P =0.014), and proximal tortuosity index (TI) (OR 1.01, 95% CI: 1.00-1.02; P =0.029) were demarcated as standalone risk predispositions for SCI subsequent to CAS. The concordance index (C-index) for the training cohort's nomogram stood at 0.89 (95% CI: 0.84-0.95). Moreover, the said nomogram exhibited commendable efficacy within the validation cohort (C-index=0.94) as well as the entire participant base (C-index=0.90). Furthermore, the decision curve analysis illustrated the exemplary clinical applicability of the nomogram.

Conclusions: The findings of this inquiry underscore that age, aortic arch type, aortic arch variant, CCA ostium lesions, and proximal TI serve as independent determinants linked with SCI post-CAS. The formulated nomogram, predicated on these risk factors, possesses robust prognostic significance, and might serve as a valuable adjunct to inform clinical decision-making.

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