• Eur. J. Clin. Invest. · Feb 2023

    Review Meta Analysis

    Coronary artery calcium score and its association with stroke: A systematic review and meta-analysis.

    • Chun Shing Kwok, Sadie Bennett, and LipGregory Y HGYHLiverpool Centre for Cardiovascular Science, University of Liverpool and Liverpool Heart and Chest Hospital, Liverpool, UK.Department of Clinical Medicine, Aalborg University, Aalborg, Denmark..
    • Faculty of Health, Education and Life Sciences, Birmingham City University, Birmingham, UK.
    • Eur. J. Clin. Invest. 2023 Feb 1; 53 (2): e13892e13892.

    BackgroundThe relationship between coronary artery calcium (CAC) score and incident stroke is controversial.MethodsWe conducted a systematic review of the literature evaluating CAC score and incident stroke. A search of MEDLINE and EMBASE was performed, and data were extracted from relevant studies. Statistical pooling with random-effects meta-analysis was undertaken to evaluate the risk of incident stroke with any CAC vs. no CAC, 1-100 CAC vs. no CAC, and >100 CAC vs. no CAC.ResultsData from nine different cohort studies from the United States and Europe with a total of 61,096 patients were included in this review. The mean age of patients in the studies ranged from 44 to 69 years, and follow-up duration ranged from a median of 5.5 years to 12.3 years. The crude stroke event varied from 1.6% to 9.5%. Meta-analysis of risk of incident stroke with any vs. no CAC (RR 1.70 95% CI 0.87-3.31, I2  = 95%) and for CAC 1-100 vs. no CAC (RR 1.54 95% CI 0.75-3.17, I2  = 93%) was not statistically significant. For CAC >100, the risk of incident stroke was significantly higher compared with no CAC (RR 2.61 95% CI 1.51-4.52, I2  = 89%). When one study which included only young adults was excluded, there was significant increase in risk of incident stroke with all categories of CAC.ConclusionsThere is an association between high CAC score and incident stroke, but more studies are needed to determine how patients with incidental CAC should be managed from the perspective of stroke prevention.© 2022 Stichting European Society for Clinical Investigation Journal Foundation. Published by John Wiley & Sons Ltd.

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