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Blood Rheology Alterations in Patients with Cardiovascular Diseases.

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Blood rheology, or blood flow properties, impacts cardiovascular health. Maintaining healthy blood viscosity through factors like exercise may protect against heart disease and related events.

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Area of Science:

  • Cardiovascular Science
  • Hemodynamics
  • Physiology

Background:

  • Blood rheology significantly influences blood flow dynamics but remains under-explored in clinical settings.
  • Blood viscosity is multifactorial, dependent on shear rates, cellular components (like red blood cells - RBCs), and plasma factors.
  • RBC aggregability and deformability dictate flow in varying shear rate environments, while plasma viscosity is crucial for microcirculation resistance.

Purpose of the Study:

  • To highlight the clinical significance of blood rheology in cardiovascular health.
  • To elucidate the relationship between altered rheology, vascular injury, and atherosclerosis.
  • To explore the protective effects of physical exercise on hemorheological parameters.

Main Methods:

  • Review of existing literature on blood rheology and cardiovascular implications.
  • Analysis of factors influencing blood viscosity, including cellular and plasma components.
  • Correlation of rheological parameters with cardiovascular risk factors and events.

Main Results:

  • Increased whole blood viscosity and plasma viscosity are linked to heightened cardiovascular risk and adverse events.
  • Altered blood rheology contributes to endothelial dysfunction, vascular remodeling, and atherosclerosis development.
  • Long-term physical exercise can establish hemorheological fitness, offering protection against cardiovascular disease.

Conclusions:

  • Blood rheology is a critical, yet often overlooked, factor in cardiovascular health.
  • Understanding and managing blood rheology, potentially through lifestyle interventions like exercise, is vital for cardiovascular disease prevention.