The authors presents in the article information on influence of endothelial dysfunction and level of blood leukocytes with clinical course of stable angina pectoris in patients with ischemic heart disease (IHD). 104 male patients aged from 36 to 69 (on average 54.9+/-2.1 years) with IHD and stage I-III stable angina pectoris have been observed. The level of leukocytes, ECG daily monitoring, endotelial function with the help of Celermaera-Sorensena test and plasma concentration of endothelin I have been studied in patients. It was established that there is no significant different (P>0.05) in the level of leukocytes between health persons and patients with IHD independently of functional class of angina pectoris. Patients with IHD had higher level of endothelin I in their blood serum than those in a control group. Patients with IHD have a complicated endothelial-non-dependent vasodilation and an increased thickness of the complex intima-media, there is a negative correlation bond between these characteristics. Patients III functional class of angina pectoris has also reliably decreased endothelial-dependent vasodilation by 37%. Frequency of ventricular extrasystoles in patients with IHD and endothelial dysfunction increases by 12 times.
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