[Corrective effect of olmesartan on parameters of the local rigidity using the echo-tracking technology]

Purpose of this study was to determine clinical value of intima-media thickness (IMT) and indicators of local stiffness obtained by ultrasonography of the carotid arteries by echo-tracking technology in patients with hypertension and coronary artery disease (CAD), and to assess vasoprotective effect of 24-week treatment with olmesartan. We included into the study 22 patients with 1-2 degree hypertension, 25 patients with CAD combined with hypertension, and 44 healthy subjects. In patients with CAD and hypertension local stiffness was reassessed after 24-week treatment with olmesartan (20-40 mg/day). Patients with-hypertension compared with healthy subjects had higher values of loc P sys and loc P dia, P (T1), pulse wave propagation velocity (PWPV), stiffness index, as well as lower compliance and distensibility coefficients (CC and DC). In patients with CAD and hypertension all parameters of local stiffness and IMT were significantly higher, while CC and DC were significantly lower than in control group. Therapy with olmesartan for 24-weeks was associated with reductions of IMT (-4.8%, p < 0.05), loc P sys and loc P dia (-13.5 and -11%, respectively, p < 0.05), stiffness index β (-19.1%, p < 0.05), loc PWPV (-17%) and P (T1) (-7%, p < 0.05), and increase of CC (3.3%, p < 0.05). Conclusion. Combination of CAD and hypertension worsened the local stiffness and increased IMT. Therapy with olmesartan in this group of patients was associated with indications of vasoprotective effect.