Objective: Recent studies have indicated that endothelial dysfunction (ED) is common in patients with prior history of pulmonary thromboembolism (PTE). Based on the established relationship between ED and atherosclerosis, in this study, we aimed to investigate carotid intima- media thickness (cIMT) as a marker of subclinical atherosclerosis in patients who had prior history of PTE. Subjects and Methods: Medical records of patients who had undergone transthoracic echocardiography in Konya Training and Research Hospital, included those that had a history of PTE, and age- and gender- matched patients without any history of PTE, were reviewed and echocardiographic findings and cIMT measurements were recorded. cIMT measurements were compared between patients and control groups and then independent correlates of cIMT were investigated with appropriate statistical methods. Results: A total of 110 patients (64.02± 12.67 years, males: 79 (71.81%); females: 31(28.19%) were found. Of these patients, 55 (50.00%) had a history of PTE. Patients with a history of PTE had significantly greater cIMT (p= 0.040). In this group of patients, cIMT positively and significantly correlated with basal right ventricle (RV) diameter (r=0.271, p= 0.022), RV diastolic area (r=0.376, p= 0.002) and systolic pulmonary artery pressure (sPAP) (r=0.248, p= 0.037). In the multivariate linear regression analysis, only RV diastolic area was independently associated with cIMT in patients with PTE (p= 0.010). Conclusion: Patients with a history of PTE have increased cIMT when compared to healthy subjects and cIMT, which is a marker of subclinical atherosclerosis, is independently associated with RV diameter in these patients.
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