Effect of white matter changes on risk score for peri-procedural complications after carotid artery stenting.

Abstract:

OBJECTIVES:The presence of more severe white matter changes (WMC) may be associated with a higher risk of peri-procedural strokes in patients undergoing carotid artery stenting (CAS). However, to what extent WMC affects peri-procedural risk of CAS is unclear. We aimed to evaluate the effect of WMC on peri-procedural complications by modifying a CAS peri-procedural risk scale through adding the assessment of WMC. PATIENTS AND METHODS:A database of patients undergoing CAS was sampled from 2007 to 2014 in a single Chinese medical center. Risk factors were evaluated for peri-interventional cerebral and cardiac events and mortality. A risk score including contralateral stenosis ≥ 50%, diabetes with HbA1c > 7%, age ≥ 80 years old, symptomatic stenosis or with an ulcer lesion was applied to predict peri-interventional risk. Age-related white matter change (ARWMC) score was calculated and added to this risk scale. The predictive power of the new scale was evaluated. RESULTS:151 patients were enrolled in the study. 14 peri-interventional events were recorded. Patients with peri-procedural complications had higher rates of diabetes (57.1% vs 18.2%, P = 0.001), contralateral stenosis (64.29% vs 32.85%, P = 0.019), coronary heart disease (42.9% vs 14.6%, P = 0.008) and ARWMC ≥ 7 (64.3% vs 25.5%, P = 0.002) compared with patients without peri-procedural complications. ARWMC ≥ 7 was an independent risk factor for peri-procedural complications from factors of the CAS scale after adjusting other confounders including contralateral stenosis ≥ 50%, HbA1c > 7%, age ≥ 80 years old and symptomatic stenosis or with an ulcer lesion. After the ARWMC score was added to the original scale, the AUC value of the new scale to predict the risk of peri-procedural complications after CAS was elevated (0.808 vs 0.730, p = 0.068). CONCLUSION:More severe WMC was a risk factor for peri-procedural complications after CAS in patients with carotid artery stenosis. ARWMC score may help to improve the predictive power of the risk scale for peri-procedural complications after CAS.

journal_name

Clin Neurol Neurosurg

authors

Yu C,Guo WC,Zhu L,Tan JY,Shi WH,Zhang XL,Gu YX,Han X,Dong Q

doi

10.1016/j.clineuro.2017.10.034

subject

Has Abstract

pub_date

2018-01-01 00:00:00

pages

108-113

eissn

0303-8467

issn

1872-6968

pii

S0303-8467(17)30307-4

journal_volume

164

pub_type

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