Evaluation of Elastic Properties of Aorta in Patients with Impaired Glucose Tolerance by Conventional and Color-Doppler Tissue Echocardiography [Turk Kardiyol Dern Ars]
Turk Kardiyol Dern Ars. 2004; 32(1): 16-22

Evaluation of Elastic Properties of Aorta in Patients with Impaired Glucose Tolerance by Conventional and Color-Doppler Tissue Echocardiography

Y.Ramazan TOPSAKAL1, Fahri BAYRAM2, Mustafa ÇALIŞKAN1, İbrahim ÖZDOĞRU1, Namık Kemal ERYOL1, Cumali GÖKÇE2, Mustafa GÜR1, Ali ERGİN1
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Increased arterial stiffness is a risk factor for cardiovascular disease. In our study we aimed to evaluate the elastic properties of the aorta with conventional and color Doppler tissue imaging (CDTI) in patients with impaired glucose tolerance (IGT) who had no hypertension or coronary artery disease. The study group consisted of 47 IGT patients having without hypertension or coronary artery disease (mean age 37±8), and the control group of 32 healthy subjects (mean age 34±8). To evaluate the elastic properties of the aorta, diastolic and systolic diameters of the aorta were measured by M-mode echocardiography and tissue Doppler velocities of the superior wall of aorta were measured by CDTI (S, E, A m/sn) and heart rate and blood pressure were measured during echocardiographic evaluation. Aortic stiffness index and aortic distensibility were calculated using the formulas (aortic stiffness index=ln(SKB/DKB)/(AoS-AoD)/AoD cm2 dynes-1, aortic distensibility=2x(AoS-AoD)/NBxAoD). Aortic stiffness index, aortic distensibility and S velocities (m/sn) of superior aortic wall were significantly different the in study group compared with the controls. (1.39±1.52 vs 0.54±32, p=0.002, 2.64±1.83 vs 7.11±4.33, p<0.001, 0.057±0.022 vs 0.069±0.027, p=0.029, respectively). Aortic stiffness index was negatively correlated with superior aortic wall S velocity (r=-30, p=0.007) and with E velocity (r=-0.34, p=0.002). Aortic distensibility was positively correlated with superior aortic wall S velocity (r=0.34, p=0.002) and with E velocity (r =0.37, p=0.001).
CONCLUSION
In patients with IGT, aortic stiffness index was higher and aortic distensibility lower than in normal controls. S velocity of superior wall of the aorta measured by CDTI decreased as aortic stiffness increased. (Türk Kardiyol Dern Arş 2004; 32: 16-22)

Keywords: Aortic stiffness and distensibility, impaired glucose tolerance, tissue Doppler echocardiography

How to cite this article
Y.Ramazan TOPSAKAL, Fahri BAYRAM, Mustafa ÇALIŞKAN, İbrahim ÖZDOĞRU, Namık Kemal ERYOL, Cumali GÖKÇE, Mustafa GÜR, Ali ERGİN. Evaluation of Elastic Properties of Aorta in Patients with Impaired Glucose Tolerance by Conventional and Color-Doppler Tissue Echocardiography. Turk Kardiyol Dern Ars. 2004; 32(1): 16-22
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