The relationship of resilient-elastic indicators of the shoulder blood vessels properties and systemic hemodynamic among essential hypertension patients
Keywords:
hypertension, remodelling of the cardiovascular system, resilient-elastic properties of the vessels of the shoulder, rheogramAbstract
Hypertension (HT) occupies today a leading position on the incidence and prevalence of all cardiovascular disease (CVD). It is one of the main risk factors determining the prognosis of morbidity and mortality rate of the population of Ukraine due to CVD. The incidence of HT in the world has the character of a pandemic.
The purpose of the study. Was to determine the indicators relationships of the blood vessels viscoelasticity of the shoulder, and systemic hemodynamics in patients with essential hypertension.
Materials and methods. The purpose of the study was carried out a comprehensive survey of 224 HT patients, including 126 ones with stage II hypertension of 1–3 degree arterial hypertension and 98 people with 1–3 stage HT of I degree of hypertension. Practically healthy individuals were examined on an outpatient basis. The study of viscoelasticity of arterial vessels was conducted using the rheographic complex «REOKOM» (HAI-Media, Kharkiv) according to the standard Protocol. They recorded rheogram of a shoulder and examined the following indicators: quick time (tQKH) and slow the blood flow (tSKH), the amplitude of the systolic wave (ASV), the ratio of peripheral resistance (RPR), the tone of large arteries (TLA), the tone of the medium and small arteries (TMSA), inter-amplitude indicator of diastolic waves (MIDW).
Results. There were evaluated viscoelasticity of shoulder vessels in patients with hypertension of the stage II and determined the relationship with the indicators of systemic hemodynamics. It was found that the increase in blood pressure affects the increase in the parameters of systemic hemodynamics and arterial stiffness.
Conclusions. Inpatientswithstage IIHT, there is a violation of the viscoelasticity of the muscular type of arterial vessels with manifestations of their walls remodeling, with an increase in time, both fast and slow their blood filling. There may be no significant differences in systemic hemodynamic parameters between subgroups of patients with stage II and stage I HT, which indicates compensatory changes in the cardiovascular system. A strong direct relationship between average dynamic pressure and the time of rapid blood filling, as well as average dynamic pressure and the tonus of large arteries were determined.
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