Carotid siphon calcification impact on revascularization and outcome in stroke intervention.

Abstract:

OBJECTIVE:The degree of coronary artery calcification has been shown to predict outcomes in coronary artery disease. The impact of intracranial carotid artery calcification on the prognosis of acute ischemic stroke (AIS) is unknown. The authors sought to examine if the degree of intracranial carotid artery calcification influences reperfusion or outcomes in AIS intervention. METHODS:All anterior circulation large vessel occlusion AIS cases that underwent intra-arterial therapy from January 2009 to July 2012 were reviewed. Clinical and radiographic data were collected. Non-contrast brain CT scans were assigned a Calcium Extent Score (degree of calcification of the carotid wall circumference), Calcium Thickness Score (thickness of the calcified plaque), and total Carotid Siphon Calcium (CSC) Score (8-point scale). RESULTS:One-hundred seventeen patients met inclusion criteria. The mean age was 65.4±15.6 years and 36% were male. Calcification was present in the intracranial carotid artery of 84 patients (71%). Inter-rater agreement for total CSC score was strong (Spearman's rho=0.883, p<0.001). The mean Calcium Extent Score was 1.5±1.3, Calcium Thickness Score 1.3±1.0 and total CSC Score 2.8±2.2. Reperfusion and mRS were not associated with CSC. Multivariate linear regression analysis revealed that older age, history of coronary disease and cervical internal carotid occlusion/near-occlusion were independently associated with higher total CSC scores. CONCLUSION:Extensive calcification on the intracranial carotid artery does not have impact on reperfusion or clinical outcomes in AIS patients undergoing endovascular therapy. Higher CSC scores are associated with coronary artery disease, increasing age and cervical internal carotid artery occlusion/near-occlusion.

journal_name

Clin Neurol Neurosurg

authors

Haussen DC,Gaynor BG,Johnson JN,Peterson EC,Elhammady MS,Aziz-Sultan MA,Yavagal DR

doi

10.1016/j.clineuro.2014.02.021

subject

Has Abstract

pub_date

2014-05-01 00:00:00

pages

73-7

eissn

0303-8467

issn

1872-6968

pii

S0303-8467(14)00074-2

journal_volume

120

pub_type

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