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Updated: Aug 24, 2026

Non-invasive Assessment of Microvascular and Endothelial Function
Published on: January 29, 2013
[Rheological properties of blood and endothelial function in patients with hypertensive disease]
E V Shliakhto1, O M Moiseeva, E A Liasnikova
1V. A. Almazov St-Peterburg Research Institute for Cardiology, pr. Parkhomenko, 15, 194156 St-Peterburg, Russia.
Patients with hypertension are characterized by elevated platelet and erythrocytes aggregation and presence of relationship between rigidity of red blood cells and myocardial mass index. They also have increased number of leukocytes in peripheral blood, enhanced adhesive ability of neutrophils, increased representation of integrin receptors on lymphocytes and monocytes, and expression of Fas-receptors. These features evidence for augmented functional activity of leukocytes in hypertensive disease. Changes of rheological parameters of blood occur before impairment of vasomotor endothelial function. Augmentation of viscous properties of blood and functional activity of leukocytes aggravates hemodynamic disturbances in hypertension and can facilitate myocardial and vascular remodeling.
Patients with hypertension are characterized by elevated platelet and erythrocytes aggregation and presence of relationship between rigidity of red blood cells and myocardial mass index. They also have increased number of leukocytes in peripheral blood, enhanced adhesive ability of neutrophils, increased representation of integrin receptors on lymphocytes and monocytes, and expression of Fas-receptors. These features evidence for augmented functional activity of leukocytes in hypertensive disease. Changes of rheological parameters of blood occur before impairment of vasomotor endothelial function. Augmentation of viscous properties of blood and functional activity of leukocytes aggravates hemodynamic disturbances in hypertension and can facilitate myocardial and vascular remodeling.
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The average BP in an adult is typically around 120/80 mmHg (millimeters of mercury). In this measurement, the numerator (120) indicates the systolic pressure, which is the pressure in the arteries during the contraction of the heart's ventricles as blood is expelled. The denominator (80) represents the diastolic...
Blood Pressure
Special considerations while measuring blood pressure
Monitoring Both Arms:
Monitoring BP in both arms during the initial assessment is advisable, as the systolic value may differ by five to ten mm Hg between arms. For subsequent BP assessments, use the arm with the higher reading.

