Relationship between presence of coronary heart disease (CHD), coronary risk factors (parameters of lipid transport system and hypertension) and disturbances of microcirculation was studied in patients with myeloproliferative blood disease Polycythemia Vera (PV). Probability of tissue (including blood vessel wall) cholesterol accumulation was estimated by measurement of its content in skin surface layers. PV patients (n=55, including 27 patients with CHD) had predominant hypolipoproteinemia with normal proportion of various lipoprotein classes. Absence of substantial increase of skin surface cholesterol content both in patients with and without CHD was considered to be a sign of low probability of the presence of severe atherosclerotic processes. However patients with CHD had substantially more pronounced disturbances of microcirculation. Basing on these data the authors suggest that CHD in PV patients had non-lipoprotein genesis and present discussion of alternative mechanisms of vascular changes.
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