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Yoshida, Yuriko; Jin, Zhezhen; Russo, Cesare; Homma, Shunichi; Nakanishi, Koki; Ito, Kazato; Mannina, Carlo; Elkind, Mitchell S V; Rundek, Tatjana; Yoshita, Mitsuhiro; DeCarli, Charles; Wright, Clinton B; Sacco, Ralph L; Di Tullio, Marco R
European heart journal cardiovascular imaging, 03/2023, Volume: 24, Issue: 4Journal Article
Abstract Aims Heart disease is associated with an increased risk for ischaemic stroke. However, the predictive value of reduced left ventricular ejection fraction (LVEF) for stroke is controversial and only observed in patients with severe reduction. LV global longitudinal strain (LV GLS) can detect subclinical LV systolic impairment when LVEF is normal. We investigated the prognostic role of LV GLS for incident stroke in a predominantly elderly cohort. Methods and results Two-dimensional echocardiography with speckle tracking was performed in the Cardiac Abnormalities and Brain Lesions (CABL) study. Among 708 stroke-free participants (mean age 71.4 ± 9.4 years, 60.9% women), abnormal LV GLS (>−14.7%: 95% percentile of the subgroup without risk factors) was detected in 133 (18.8%). During a mean follow-up of 10.8 ± 3.9 years, 47 participants (6.6%) experienced an ischaemic stroke (26 cardioembolic or cryptogenic, 21 other subtypes). The cumulative incidence of ischaemic stroke was significantly higher in participants with abnormal LV GLS than with normal LV GLS (P < 0.001). In multivariate stepwise logistic regression analysis, abnormal LV GLS was associated with ischaemic stroke independently of cardiovascular risk factors including LVEF, LV mass, left atrial volume, subclinical cerebrovascular disease at baseline, and incident atrial fibrillation hazard ratio (HR): 2.69, 95% confidence interval (CI): 1.47–4.92; P = 0.001. Abnormal LV GLS independently predicted cardioembolic or cryptogenic stroke (adjusted HR: 3.57, 95% CI: 1.51–8.43; P = 0.004) but not other subtypes. Conclusion LV GLS was a strong independent predictor of ischaemic stroke in a predominantly elderly stroke-free cohort. Our findings provide insights into the brain–heart interaction and may help improve stroke primary prevention strategies. Graphical Abstract Graphical Abstract
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