Non-invasive vascular measures as prognostic predictors for older patients with non-ST elevation acute coronary...

Area of Science:

• Cardiology
• Geriatrics
• Vascular Medicine

Background:

• Older adults with non-ST elevation acute coronary syndrome (NSTEACS) face a high risk of adverse cardiac events.
• Predictive markers for long-term outcomes in this demographic remain insufficient.
• This study evaluated non-invasive vascular measures for prognostic value in elderly NSTEACS patients.

Purpose of the Study:

• To assess the long-term prognostic significance of endothelial function, carotid intima-media thickness (CIMT), and vascular stiffness in older NSTEACS patients.
• To determine if these non-invasive measures can predict major adverse cardiovascular events (MACE) in this population.

Main Methods:

• A multicentre cohort study (NCT01933581) included NSTEACS patients aged 75 years and older.
• Endothelial function was measured by the logarithm of reactive hyperemia index (LnRHI).
• Carotid intima-media thickness (CIMT) and carotid-femoral pulse wave velocity (cfPWV) assessed vascular structure and stiffness.
• Long-term outcomes included MACE (death, reinfarction, urgent revascularization, stroke/TIA, bleeding).

Main Results:

• No significant association was found between LnRHI and MACE or mortality.
• CIMT did not show a statistically significant difference in MACE.
• cfPWV also did not demonstrate prognostic significance for MACE in this cohort.

Conclusions:

• Endothelial function, CIMT, and vascular stiffness are not strong prognostic predictors in older NSTEACS patients.
• Current non-invasive vascular measures are insufficient for predicting long-term adverse events in this specific patient group.