Abstract
Elevated blood viscosity is an integral component of vascular shear stress that contributes to the site specificity of atherogenesis, rapid growth of atherosclerotic lesions, and increases their propensity to rupture. Ex vivo measurements of whole blood viscosity (WBV) is a predictor of cardiovascular events in apparently healthy individuals and studies of cardiovascular disease patients. The association of an elevated WBV and incident cardiovascular events remains significant in multivariate models that adjust for major cardiovascular risk factors. These prospective data suggest that measurement of WBV may be valuable as part of routine cardiovascular profiling, thereby potentially useful data for risk stratification and therapeutic interventions. The recent development of a high throughput blood viscometer, which is capable of rapidly performing blood viscosity measurements across 10,000 shear rates using a single blood sample, enables the assessment of blood flow characteristics in different regions of the circulatory system and opens new opportunities for detecting and monitoring cardiovascular diseases.
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