Hemodynamic Markers Predict Outcomes a Decade After Acute Coronary Syndrome

Area of Science:

• Cardiology
• Clinical Research
• Hemodynamics

Background:

• Previous research identified novel hemodynamic indices for predicting 3-5-year mortality in myocardial infarction survivors.
• This study extends the investigation to assess the long-term (10-year) prognostic value of these markers.

Purpose of the Study:

• To evaluate the long-term prognostic significance of novel hemodynamic indices in predicting 10-year all-cause mortality.
• To determine if markers like ventricular-arterial coupling, excess aortic pressure, and pulse wave velocity/global longitudinal peak systolic strain index offer independent predictive value.

Main Methods:

• Prospective study of 569 acute coronary syndrome patients with >50% coronary artery stenosis.
• Assessment of ejection fraction (EF), global longitudinal peak systolic strain (GLPSS), ventricular-arterial (VA) coupling, excess aortic pressure (excess PTI), and pulse wave velocity (PWV).
• 10-year follow-up for all-cause mortality.

Main Results:

• 172 deaths occurred during a median follow-up of 3249 days.
• Lower EF, impaired VA coupling, higher excess PTI, and lower PWV/GLPSS index were associated with mortality.
• Multivariate analysis confirmed EF, VA coupling, excess PTI, and PWV/GLPSS index as independent predictors of 10-year mortality.

Conclusions:

• Novel hemodynamic indices, including VA coupling, PWV/GLPSS index, and excess PTI, possess significant long-term prognostic value.
• These markers effectively predict 10-year all-cause mortality in patients with acute coronary syndrome.
• The findings support the clinical utility of these hemodynamic markers for risk stratification in ACS survivors.