Relationship between plasma viscosity and the severity of coronary heart disease

Area of Science:

• Cardiovascular Medicine
• Clinical Pathology

Background:

• Plasma viscosity is implicated in cardiovascular risk, but its direct relationship with coronary heart disease severity was previously unestablished.
• Existing research suggests a potential link, yet lacks definitive evidence connecting plasma viscosity to the extent of coronary artery disease.

Purpose of the Study:

• To investigate the association between plasma viscosity and the severity of coronary heart disease.
• To determine if plasma viscosity is an independent predictor of coronary artery disease severity in male myocardial infarction patients.

Main Methods:

• Plasma viscosity and laboratory markers were measured in 1142 male myocardial infarction patients.
• Coronary angiography quantified atherosclerotic changes, categorizing patients by the number of stenosed vessels (0-3).
• Statistical analysis adjusted for age, fibrinogen, and diuretic use.

Main Results:

• A positive correlation was observed between plasma viscosity and coronary heart disease severity.
• Mean plasma viscosity increased with the number of stenosed coronary vessels, ranging from 1.141 mPa·s (no stenosis) to 1.162 mPa·s (three stenoses >50%).
• These differences were statistically significant (P<0.001 to 0.05), except between patients with no/one or one/two stenosed vessels.

Conclusions:

• Plasma viscosity is significantly associated with the severity of coronary heart disease in men.
• The findings support the hypothesis that plasma viscosity mediates the link between cardiovascular risk factors and coronary heart disease.
• Elevated plasma viscosity may serve as a valuable biomarker for assessing coronary artery disease severity.