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Published on: October 20, 2023
Relation between ascending aortic pressures and outcomes in patients with angiographically demonstrated coronary
Julio A Chirinos1, Juan P Zambrano, Simon Chakko
1University of Miami School of Medicine, Miami, Florida, USA. jchirinos@med.miami.edu
Insights
Higher aortic pulse pressure increases the risk of death and major adverse cardiovascular events (MACEs). Lower diastolic blood pressure (BP) is linked to higher MACE risk, especially in severe coronary artery disease patients.
Area of Science:
- Cardiology
- Vascular Physiology
- Clinical Medicine
Background:
- Ascending aortic pressures are critical hemodynamic parameters.
- Understanding their association with cardiovascular outcomes is essential for risk stratification.
Purpose of the Study:
- To investigate the relationship between ascending aortic pressures and the risk of all-cause mortality and major adverse cardiovascular events (MACEs).
Main Methods:
- Prospective follow-up of 324 men undergoing coronary angiography for 1,161 days.
- Analysis of ascending aortic pressures (pulse pressure, diastolic BP) and their correlation with MACEs and mortality.
Main Results:
- Aortic pulse pressure significantly predicted MACEs (HR 1.09) and all-cause mortality (HR 1.18).
- Diastolic blood pressure inversely correlated with MACEs (HR 0.85) and mortality (HR 0.76).
- Lower diastolic BP risk was more pronounced in triple-vessel coronary artery disease.
Conclusions:
- Ascending aortic pulse pressure is an independent predictor of adverse cardiovascular outcomes.
- Diastolic blood pressure is a significant inverse predictor of MACEs and mortality.
Abstract:
We prospectively followed 324 men, who underwent coronary angiography, for 1,161 +/- 418 days. We analyzed the association between ascending aortic pressures measured during cardiac catheterization and the risk of all-cause mortality and a combined end point of major adverse cardiovascular events (MACEs), including unstable angina pectoris, myocardial infarction, coronary revascularization, stroke, or death. Pulse pressure significantly predicted MACEs (hazard ratio [HR] per 10 mm Hg increase 1.09, 95% confidence interval [CI] 1.002 to 1.17, p = 0.04). Diastolic blood pressure (BP) inversely correlated with the risk of MACEs (HR per 10 mm Hg increase 0.85, 95% CI 0.74 to 0.98, p = 0.02). These correlations remained significant after adjusting for other predictors and potential confounders. The association between lower diastolic BP with the risk of MACEs was more pronounced in patients with triple-vessel coronary artery disease (p for interaction = 0.03). Peripheral diastolic BP (but not pulse pressure) correlated inversely with the risk of MACEs (HR 0.87 per 10 mm Hg increase, 95% CI 0.75 to 0.998, p = 0.047). Aortic pulse pressure significantly predicted death (HR per 10 mm Hg increase 1.18, 95% CI 1.05 to 1.33, p = 0.004), and aortic diastolic BP correlated inversely with the risk of death (HR 0.76, 95% CI 0.62 to 0.94, p = 0.01).
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