Relationships between hemodynamic indices and rheological properties of blood in primary hypertension

Abstract

Central hemodynamics and rheological properties of blood were studied in 15 healthy controls and 28 primary hypertensive patients (WHO 1–2) of both sexes. Hemorheological parameters: whole blood viscosity (η_B), plasma viscosity (η_p), hematocrit (HCT) and red blood cell filterability index (FI) were measured in venous blood sampled just prior to hemodynamic investigation. Plasma volume, systolic and diastolic blood pressure and cardiac output were estimated and indices: plasma volume index (PVI), blood volume index (BVI), cardiac index (CI), stroke volume index (SVI), total peripheral resistance index (TPRI) and aortic rigidity index (ARI) were calculated.