CC BY 4.0 · Journal of Child Science 2020; 10(01): e63-e73
DOI: 10.1055/s-0040-1713595
Original Article
Georg Thieme Verlag KG Stuttgart · New York

Assessment of Aortic Elasticity and the Doppler Tissue Echocardiography in Thalassemia Major Children

Noor Mohammad Noori
1  Children and Adolescent Health Research Center, Resistant Tuberculosis Institute, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
,
1  Children and Adolescent Health Research Center, Resistant Tuberculosis Institute, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
,
Kambiz Keshavarz
2  School of Medicine, University of Medical Sciences, Yasuj, Iran
,
Malihe Moradi
3  School of Medicine, University of Medical Science, Zahedan, Iran
› Author Affiliations
Further Information

Publication History

17 March 2020

08 May 2020

Publication Date:
04 August 2020 (online)

  

Abstract

Cardiovascular diseases are the most common illness that needs special medical care in thalassemia particularly in children and adolescents. We aimed to compare aortic stiffness in thalassemia major and healthy children. The study included 65 asymptomatic thalassemia major 6 to 19-year–old children without known history of heart disease and 65 age- and sex-matched healthy controls. Arterial stiffness indices determined using two-dimensional (2D) and Doppler echocardiography. Data were analyzed by SPSS 20.0 with 0.05 as significant error. From the study, results showed that systolic (p = 0.009) and diastolic (p < 0.001) blood pressures were higher in controls. Left ventricular mass index (LVMI) was higher in patients (p < 0.001). Aortic stiffness index (p < 0.001), pulse pressure (p < 0.001), and pressure strain elastic modulus (p < 0.001) were higher in patients, while aortic strain (p < 0.002) and aortic distensibility (p < 0.001) were lower significantly. Aortic stiffness index was correlated with diastole aorta (p = 0.005), systole aorta (p < 0.001), and LVMI (p < 0.001). Strain was correlated with diastole aorta (p < 0.001). Pulse pressure was correlated with systolic blood pressure (p < 0.001), diastolic blood pressure (p = 0.002) significantly. Aortic distensibility was correlated with systolic blood pressure (p = 0.039) and diastole aorta (p < 0.001) significantly. The pressure strain elastic modulus was correlated only with diastole aorta (p = 0.029). Concluded, aortic stiffness index, pulse pressure, and pressure strain elastic modulus were higher in thalassemia children, while aortic strain and aortic distensibility were lower. This increase may result in reduction of mechanical efficiency of the heart. Therefore, assessment of aortic elastic properties as nontraditional cardiovascular risk factors may contribute to the identification of cardiovascular risks in children with thalassemia

Authors’ Contributions

N.M.M. contributed in conception, supervision, data collection, literature review, and critical review. A.T. participated in analysis and interpretation, writing manuscript, literature review, and critical review.