ISSN 1671-5411 CN 11-5329/R
George Hahalis, Evangelia Zacharioglou, Ioanna Xanthopoulou, Ioanna Koniari, Chistina Kalogeropoulou, Irene Tsota, Aspasia Rigopoulou, Athanasios Diamantopoulos, Vasilios Gkizas, Periklis Davlouros, Karolina Akinosoglou, Marianna Leopoulou, Charalampos Gogos, Dimitrios Alexopoulos. Coronary atherosclerosis burden is not advanced in patients with β-thalassemia despite premature extracardiac atherosclerosis: a coronary ar-tery calcium score and carotid intima-media thickness study. J Geriatr Cardiol 2016; 13(2): 158-162. doi: 10.11909/j.issn.1671-5411.2016.02.006
Citation: George Hahalis, Evangelia Zacharioglou, Ioanna Xanthopoulou, Ioanna Koniari, Chistina Kalogeropoulou, Irene Tsota, Aspasia Rigopoulou, Athanasios Diamantopoulos, Vasilios Gkizas, Periklis Davlouros, Karolina Akinosoglou, Marianna Leopoulou, Charalampos Gogos, Dimitrios Alexopoulos. Coronary atherosclerosis burden is not advanced in patients with β-thalassemia despite premature extracardiac atherosclerosis: a coronary ar-tery calcium score and carotid intima-media thickness study. J Geriatr Cardiol 2016; 13(2): 158-162. doi: 10.11909/j.issn.1671-5411.2016.02.006

Coronary atherosclerosis burden is not advanced in patients with β-thalassemia despite premature extracardiac atherosclerosis: a coronary ar-tery calcium score and carotid intima-media thickness study

doi: 10.11909/j.issn.1671-5411.2016.02.006
  • Received Date: 2015-08-02
  • Publish Date: 2016-02-09
  • Background Thalassemic patients demonstrate an increased rate of extracardiac vascular complications and increased carotid wall intima-media thickness (cIMT), but very low prevalence of coronary artery disease (CAD). We investigated the atheroma burden by assessing the coronary artery calcium (CAC) and cIMT in these patients. Methods We examined 37 patients with β-thalassemia and 150 healthy control volunteers with multi-detector computer tomography (CT) and ultrasonography to determine CAC score and cIMT, respectively. Results Propensity score matching (C-statistic: 0.88; 95% CI: 0.83–0.93) resulted in 27 pairs of patients; severe CAC was observed in 2 (7.4%) and 0 of β-thalassemia patients and healthy volunteers respectively (P = 0.5). Median calcium score was 0 (0–0) in β-thalassemia patients and 0 (0–4) in healthy volunteers (P = 0.8). Median intima-media thickness was higher in β-thalassemia patients compared to control group [0.45 (0.06–0.65) vs. 0.062 (0.054–0.086); P = 0.04]. Conclusions Patients with β–thalassemia in comparison with healthy control subjects exhibit similar CAC score and increased cIMT. Our findings indicate a disparate rate of progression of atherosclerosis between coronary and extracardiac arteries in these patients lending support to the epidemiological evidence.
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