抄録
Aim: Aortic arch calcification (AoAC) on chest X-rays represents systemic atherosclerosis and it is associated with ischemic cardiovascular diseases. However, the relationship between ischemic stroke and AoAC has yet to be fully elucidated.
Methods: Patients with acute ischemic stroke who were undergoing chest X-ray, blood, and brain magnetic resonance imaging (MRI) examinations were prospectively studied. The extent of AoAC on chest X-ray was divided into four grades (0-3). Clinical characteristics, biochemical findings, white matter lesions on MRI, and AoAC extent were assessed in each stroke subtype, and the factors associated with AoAC were investigated.
Results: A total of 175 patients (age, 70±13 years; 115 men) were enrolled in the study. According to the Trial of Org 10172 in Acute Stroke Treatment classification with minor modification, 33 patients (19%) had small artery occlusion (SAO), 42 (24%) had large artery atherosclerosis, 49 (28%) had cardioembolism, 24 (14%) had stroke with other determined etiologies, and 27 (17%) had stroke with undetermined etiologies. Compared to other stroke subtypes, the extent of AoAC was independently correlated with SAO (all p＜0.05). Age (odds ratio [OR]: 1.14, 95% confidence interval [CI]: 1.08 to 1.19, p＜0.001), hypertension, (OR: 3.44, 95% CI: 1.23 to 9.66, p=0.019), diabetes mellitus (OR: 2.19, 95% CI: 0.99 to 4.85, p=0.054), white matter lesions (OR: 1.54, 95% CI: 1.00 to 2.36, p=0.048), and SAO (OR: 1.38, 95% CI: 1.02 to 1.89, p=0.040) were significantly associated with AoAC.
Conclusions: Age, hypertension, cerebral small artery disease, and possibly diabetes mellitus appear to be closely associated with AoAC in patients with acute ischemic stroke.
