C-reactive protein and the risk of stent thrombosis and cardiovascular events after drug-eluting stent implantation

Area of Science:

• Cardiology
• Biomarkers
• Interventional Cardiology

Background:

• C-reactive protein (CRP) is a potential biomarker for atherothrombosis.
• The association between CRP and stent thrombosis post-drug-eluting stent (DES) implantation requires definition.

Purpose of the Study:

• To investigate the relationship between baseline C-reactive protein (CRP) levels and the risk of stent thrombosis.
• To assess CRP's predictive value for major adverse cardiovascular events after DES implantation.

Main Methods:

• Prospective evaluation of 2691 patients undergoing DES implantation with baseline CRP measurements.
• Follow-up for stent thrombosis, death, myocardial infarction (MI), and target vessel revascularization.
• Multivariable Cox proportional-hazards models used to analyze outcomes.

Main Results:

• Elevated CRP levels significantly predicted increased risks of stent thrombosis (HR, 3.86), death (HR, 1.61), MI (HR, 1.63), and death or MI (HR, 1.61).
• CRP did not significantly predict target vessel revascularization (HR, 1.20).
• Incorporating CRP improved predictive models for stent thrombosis and major adverse cardiovascular events.

Conclusions:

• Elevated CRP levels are significantly associated with increased risks of stent thrombosis, death, and MI in patients receiving DES.
• CRP may be a useful tool for inflammatory risk assessment in patients with DES.
• Larger studies with longer follow-up are needed to confirm these findings.