Central aortic pulse pressure, thrombogenicity and cardiovascular risk

Area of Science:

• Cardiovascular Medicine
• Hemostasis and Thrombosis
• Clinical Cardiology

Background:

• High central aortic pulse pressure (CPP) and thrombin-induced platelet-fibrin clot strength (TIP-FCS) are independently linked to ischemic outcomes in coronary artery disease patients.
• The combined ischemic risk and interrelation between CPP and TIP-FCS have not been previously investigated in a single study.

Purpose of the Study:

• To establish cut-off values for CPP and TIP-FCS measured during cardiac catheterization that predict long-term major adverse cardiovascular events.
• To analyze the independent and combined predictive value of CPP and TIP-FCS on ischemic outcomes.

Main Methods:

• Prospective enrollment of 334 consecutive patients undergoing cardiac catheterization.
• Assessment of thrombogenicity using thrombelastography to determine TIP-FCS.
• Follow-up for up to 3 years to record major adverse cardiovascular events (cardiovascular death, myocardial infarction, ischemic stroke) and recurrent ischemic events.

Main Results:

• Patients experiencing primary or secondary endpoints exhibited significantly higher CPP and TIP-FCS compared to those without events.
• CPP >60 mmHg and TIP-FCS >69 mm were identified as independent predictors of the primary endpoint.
• The combination of CPP >60 mmHg and TIP-FCS >69 mm was associated with a markedly increased risk of primary endpoint occurrence (Hazard Ratio: 5.4).

Conclusions:

• High CPP and elevated TIP-FCS are interrelated and independently associated with increased cardiovascular risk in patients undergoing cardiac catheterization.
• The simultaneous presence of high CPP and high TIP-FCS significantly enhances the risk of major adverse cardiovascular events.
• Further research is warranted to elucidate the mechanistic link between central aortic pulse pressure and thrombogenicity.